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Our creativity. Your profit. Creative engineering leads to unique solutions that save time and money Our Projects Private houses Commercial Public Buildings Infrastructures Residential projects "The project seemed unfeasible, the only one who found solutions to the soil problems was Yuger, saving millions" Shlomo Alfie, Neot Ahim construction What is creative engineering? At Yuger there is no problem that does not have a solution. Every project is thoroughly thought by the team that puts the customer's needs at the center, and finds, with the help of our extensive knowledge and experience, the most economical solution in time and money per project. Read more Who we are? For over 40 years, Yuger Engineers have specialized in providing soil consulting services to entrepreneurs, the largest and leading companies in Israel, the Israeli government (including the Ministry of Construction and the Ministry of Defense), municipalities and local councils. Our experience, creativity and innovation ensure that our customers will always receive an optimal solution that results in saving of costs and execution times. Read more Our customers Selected projects Neighborhoods in Beit Shemesh Development of several neighborhoods on complex and problematic soil for foundation The project Commercial building in Har-Tuv A second opinion that led to a change in the execution method in two supported walls The project The Open University in Ra'anana Foundation of the university structure, which includes upper and underground parts on complex soil The project TMA 38/1 Osishkin st. Tel Aviv An existing structure based on slabs on thick clay near the ground water level The project Residential complex in Arsuf luxury residential complex at the top of the coastal cliff in Arsuf The project Nesher plant, Ramla A variety of projects in the cement plant campus, including conveyors, pipeline bridges, industrial buildings. The project Contact us Anchor 1 Phone: 09-8911401 Email: office@engyuger.com Last Name phone First name mail adress message Send Thanks for getting in touch! We will reply as soon as possible

מהנדס קרקע וביסוס מהנדסים גאו-טכניים יעוץ קרקע וביסוס Choosing a land consultant

דף הבית / פרויקטים / Selected projects Ha'Imahot st. Tiberias The construction of Ha'Imahot Street road in the problematic marlstone area The project Hadera mall A second opinion for the establishment of an open mall structure near the beach road and providing an alternative solution The project Etz Efraim house A second opinion for the project of a house above about 10-14 m of uncontrolled fill, and a solution that financially enabled the execution of the project. The project Residential complex in Arsuf A luxury residential complex at the top of the coastal cliff in Arsuf The project TMA 38/1 Osishkin st. Tel Aviv An existing structure based on slabs on thick clay near the groundwater level The project Industrial building in Har-Tuv A second opinion that led to a change in the execution method in two supported walls and saved a lot of time in the execution The project El Matan neighborhood, Ma'ale Shomron Second opinion, providing a solution of adapting the foundation to the findings while performing and reducing about 60% of the pile volume which resulted in significant savings in construction costs. The project Beit Shemesh neighbourhoods Development of several neighborhoods in Beit Shemesh on complex and problematic soil The project Open University in Ra'anana The foundation of the university structure, which includes upper and underground parts in complex soil The project Ramat Hasharon house A second opinion for the project of a detached building on spillway land that resulted in savings of hundreds of thousands of shekels in the execution method. The project Kfar Saba construction project Providing a second opinion for a residential building and providing a solution for the successful completion of the construction The project TMA 38/1 Fayvel st. Tel Aviv Project TMA 38/1 (strengthening of a residential building and adding floors) which included hanging a building for the purpose of digging under it. The project Haifa Chemicals South - industrial buildings and facilities Carrying out several construction and repair projects on the factory The project Trio Towers Netanya Foundation of three 26-floor residential towers using an innovative method The project Hofim school Hadera A second opinion for a building with a total area of 9,000 square meters and a solution that significantly shortened the execution time The project Kfar Shmaryahu house Construction of a luxury villa that includes glass facades and varying levels in the area where there was an existing building. The project A residential building in Mevaseret Zion Second opinion and an economic solution for establishing 2 buildings with 9 floors & 2 basement floors The project Underground parking lot, Sha'are Zedek, Jerusalem A foundation solution for the parking lot that includes monitoring the implementation The project Nesher Ramla Carrying out a variety of projects on the territory of the cement plant. The project

מהנדס קרקע וביסוס מהנדסים גאו-טכניים יעוץ קרקע וביסוס Public Buildings "Professionals, clear, creative solutions for every challenge, every requirement was answered quickly and professionally. If I had to rate from 1 to 10, the score in all parameters would be 10. Following your advice, our savings in the project were hundreds of thousands of shekels" Elad Biton, Gedera Municipality Planning Department דף הבית / מבני ציבור / The rate of population growth in the State of Israel, combined with the construction boom in the settlements, creates a great need for the expansion of municipal infrastructure and the construction of many public buildings such as: schools, kindergardens, day care centers, community centers, etc. The local authorities invest a lot of money in these buildings, so it is important to get advice from a professional who will combine the quality of the foundation with the cost. Yuger's office has been working with authorities throughout the country for decades, and is known for its ability to find the optimal solution and save tens to hundreds of thousands of shekels in foundation costs. Selected projects - public buildings The Open University in Ra'anana The foundation of the university structure, which includes upper and underground parts in complex soil The project View More Hofim school Hadera A second opinion for a building with a total area of 9,000 square meters and a solution that significantly shortened the execution time The project View More Underground parking lot, Sha'arey Zedek Hospital, Jerusalem A foundation solution for the parking lot that includes monitoring the implementation and providing local solutions. The project View More

Analysis project on the National Railways Analysis of the effect of light rail tunnel mining on the foundations of a bridge over the National Railways tracks using 3D analysis The challenge: Examining the future impact of mining a pair of light rail tunnels on the foundations of a vehicle bridge over the National Railways. The mining tunnels will be carried out at an unknown stage. The solution: Construction of a three-dimensional finite element model (Plaxis 3D) that simulates the planned execution stages and examines their effect on the bridge. The results of the model made it possible to maintain the design of the existing bridge without making changes that would entail high costs and damage the engineering quality of the bridge.

Hadera Hofim school A second opinion for a building with a total area of 9,000 square meters and a solution that significantly shortened the execution time The challenge: A project of construction of a building with 3 classroom wings of three floors each, with a total area of 9,000 square meters. The foundation solution given by the previous consultant included bentonite piles, the execution of which involves a high cost and a slow execution time. The solution: Usi ng short piles that were drilled dry above the groundwater, at a significantly lower cost and a much shorter execution time.

Soil anchors in Israel - vision and reality This article examines what is happening in the field of soil anchors about ten years after the issuance of the first Israeli standard in the field. The soil anchors have been used for many years in the construction industry to stabilize buildings, slop es, retaining walls, piers, dams, etc., and are designed to transfer forces from the front of the building to a stable area underground. Stability is achieved by significantly increasing the normal forces acting on potential destruction planes. Driving the anchors in advance for required labor may reduce the future displacements of the anchored structure. A choice of using soil anchor alternatives should take into account the advanced technology used in it to recruit relatively high workforces, while immediately checking the endurance both in the short term and in the long term. The article was published in the professional journal of the Association of Construction and Infrastructure Engineers "Construction and Infrastructure Engineering" Issue No. 90, March 2021. 1. The role of soil anchors and their importance in construction and infrastructure industries A. Ground anchors have been accepted in the construction and infrastructure industry in the world and in Israel for many years. The anchors are used in a wide variety of applications, such as: walled excavations for basements, in places where open excavations are not possible, due to considerations of space and risk to buildings and infrastructures, a means of protection against slope sliding, to receive the troubles expected from the planned construction such as dynamic forces caused by wind and earthquake disturbances, as well as lifting forces caused d ue to underground construction, below the groundwater level. Ha Lochem St. Bnei Brak. Sheathing walls on stilts are supported by anchors and soil nails B. The above speaks for itself and emphasizes the importance of the anchor component as complex and unusual construction elements. A review of the Israeli standards and general and special specifications reveals that these elements constitute a complex category, which includes a constructive aspect on the one hand, and a geotechnical aspect on the other. This aspect requires the action of construction planners skilled in the field with geotechnical consultants in the field of soil and foundation. C. Geotechnical structures are divided into three categories (as can be seen, in T.I., 940 part 1 and T.I. 940, part 3.1: geotechnical category No. 1, 2 and 3). According to this division, elements that include defined soil anchors, usually, as category 3. This means that failure of their function may cause serious damage to the nearby environment, disruption of the operation in the area, heavy economic damage, damage to people and property. Also, there is great difficulty in repairing and restoring the site and its surroundings, which requires a lot of time. D. It is clear that structures and anchored elements require special attention, both in the planning aspect and in the performance aspect. Failures in this area also create a negative media resonance. Over the years, many failures in this field have been published, as can be found for example on the Internet, which include, for example, the collapse of drywall walls in Ra'anana, Beit Shemesh, in a large project in Bnei Brak and many others known to those in the field. On the other hand, you can find impressive projects that have been successfully carried out (attempting to attach images from these sites is difficult to impossible due to copyright issues. Readers interested in this can find them by searching the Internet). E. Every year, about 20,000 anchors are installed in Israel, in many and varied projects. The majority of the anchors (about 95%) are temporary anchors, which are replaced during construction by permanent structural elements, such as ceilings. The rest (about 5%) are permanent anchors that are supposed to be used for the entire length of the structure, which in public projects reaches 120 sleep. F. Anchors are a complex mechanical element in its structure, in the way it is installed and in the way it functions and in the existing length of the structure. Failures in anchors can be due to the following reasons: Inadequate design of the support system, which includes the anchor + the constructive element it supports (conventional wall, reinforced concrete facade, bridge, etc.). An area under the responsibility of the planning team, mainly. Failure in the structure of the anchor itself, on its various components, which includes mechanical components, protections against corrosion, drilling and installation of the anchor. This area, for the most part, is the responsibility of the anchor contractor. Failure to test the anchor and guide it, including full monitoring of the anchor. The responsibility for this area is discussed in detail within this article. 2. The anchor, its components and standard requirements A. In 2011, a detailed Israeli standard was issued for the first time, dealing with ground anchors, TI 940 part 4.2, called "Geotechnical design: strengthening and stabilization of structures for engineering purposes - ground anchors made of piles". This standard is defined as a recommended standard, which is not legally binding (unless it is determined as such in another legal framework, which adopts it as binding). B. The anchors develop relatively high service tolerances for each anchor. This allows for a reduction in the number of anchors per square meter of wall façade and makes them more economical than other anchoring methods. This advantage is accompanied by a disadvantage, since the system has lower redundancy, due to which failure of a single anchor may create progressive failures in adjacent anchors, which may lead to a general failure. C. In light of the above and the complexity of the anchor, it is necessary to ensure that the requirements regarding the anchors are clear and include, among other things: Proven documentation of the various anchor components. The components of the anchor will be compatible with each other, in a way that guarantees the use of spare parts, without improvisation and meeting all the requirements. The properties of the materials will not change during the existing length of the anchors, (up to two years for temporary anchors and for the entire period of the structure's existence, for permanent anchors). The use of new technologies and methods is allowed if there is documentation, tests and knowledge proving the anchor's resistance to all standard requirements. Ha Lochem St. Bnei Brak. Sheathing walls with piles supported by anchors and soil nails Bnei Brak. Failure case: A wall with anchors that moves D. Within the framework of the existing standard, there are two types of anchors: cable anchors and anchors from treading rods (in addition to this, there are currently polymer anchors on the market made of films and/or round polymeric rods, which are not yet included in the standard and with which experience is limited). E. The anchors operate according to the principle of transferring the stresses acting on them from the structure, through the head of the anchor, to a stable area in the subsoil, outside the scope of mutual influence between them, which could cause a general failure (see attached anchor diagram). Drawing 1 - Geometry of ground anchors F. The front anchor part is connected to the structure using the anchor head system, adapted to the type of anchor (cable anchor, or rod anchor). The back part of the anchor is occupied, in a stable area of the ground and is anchored in it using cement mortar or resin mortar ("capture" area). The central part of the anchor passes through the ground which is in the "gliding circle", which is unstable. Therefore, the tread steel (cables or rods) is separated from the ground there, inside a flexible pipe. This area is defined as a "free section". G. All anchor components are designed against corrosion and corrosion, according to their existing period. The cement mortar is tested for its resistance against corrosion and all the tread steel and normal steel components are protected against welding, in accordance with what is required of the anchors. The synthetic anchor parts are protected against UV radiation, before their installation. In temporary anchors, at least one layer of protection against corrosion is required, while in permanent anchors two such layers of protection are required. H. The drilling of the anchors is done using a machine and equipment suitable for the type of soil, its stability and possible penetration to the groundwater level (more on soil drilling and their characteristics). I. According to the requirements of the standard, the production of the anchors will be done by a manufacturer with knowledge, technological ability and experience, who will be approved by a competent authority. J. Pouring an internal grout between the cables/treading rods and the threaded pipe allows, according to the standard, to consider this grout as a protective layer. Conditional on performing grouting under factory conditions, with high-quality cement grout, so that the amount and width of the cracks in the grout meet the requirements of the standard and comments on this topic, as detailed below). K. There is a requirement in the standard to protect the anchor components at all stages of execution. That is, from the moment it leaves the factory until it is installed in the hole designated for it. To protect the anchor, the production conditions must be taken care of, it must be transported to the site from the factory, and then it must be installed in the borehole. It can be understood that in the case of casting the "root" of the anchor in the factory, lifting it onto the truck, transporting it on the road, taking it off the truck, putting it down, lifting it again and inserting it (sometimes by force) into the borehole, could, with great certainty, cause many cracks, so that his wages were lost. In order to avoid such a thing, each anchor must be led in a designated template, which will prevent damage to it, until the moment of insertion into the borehole. Obviously, all this involves additional costs. The alternative is to establish a factory on the site, which is economical only in large projects, or to find another creative solution. L. After the anchors are installed, the standard requires that each anchor be stepped on to test the anchor's function on all its components. Only after this stage is completed can the anchor be locked in a planned work load. M. The standard requires that the entire process of monitoring and analyzing the findings be done by an experienced and qualified person, under the supervision of the inspector or another qualified body, when all the aforementioned bodies will be approved by the planner, in accordance with the documents presented. 3. Vision and reality in the field A. Issuance of general specifications between offices in 2005 and later, a detailed standard in 2011, were a milestone in the attempt to regulate the anchor industry, which had been operating for a long time before without regulated standardization and without clear procedures and rules, when the issue broke out and without a proper framework. The execution of the anchors then, was subject to special technical specifications issued by the planners, each according to his skills and understanding, without standardization. B. In many projects in the past, the execution of the anchors, their inspection and guidance, were carried out by the anchor contractors themselves without proper quality control and assurance, when the contractor is the operator and inspects himself at the same time. C. There is no doubt that the introduction of the specification and subsequently the standard contributed to raising awareness and the quality of the anchors produced, but not to the required extent and without proper supervision. At the same time, in recent years there has been a large increase in the number of anchor contractors entering the field. The intense competition led to a situation where the prices of the anchors dropped significantly (probably beyond the possibility of meeting all the requirements of the standard). One area that is particularly affected is the quality control over the installation of the anchors. There is currently a trend that contradicts the requirements of the standard, of going back to inspecting the anchors by the anchor contractors, despite what is stated in the standard and contrary to engineering logic. D. In the construction and infrastructure sector in the public and governmental sector, it is acceptable to carry out projects according to a quality procedure in which the contractor performs quality control as part of the agreement, while the client performs quality assurance. This issue is problematic in the field of anchors, which requires expertise and knowledge from the inspector. This procedure does not usually exist in the private market . E. In the prevailing situation in the field today, of the tough competition in the industry, the quality costs (quality control and assurance) and the additional time needed for high-quality execution of the anchors, there is a financial problem and a problem of schedules, both for the customer and the contractor of the anchors. The problems create repeated pressures on the planners and the management team. This could lower the quality of the product and endanger the project and the people. F. The Israeli standard for anchors has existed for ten years. It has not been revised yet, as required therein. It seems to me that it is time to re-examine the standard and update it, among other things to prevent further deterioration in the field, as detailed above. Encouraging news can be found in updated general specifications issued by Israel Railways in 2018. * Eng. Moti Yuger - union member, geotechnical cell, with a bachelor's degree and a degree in civil engineering, within the "Polytechnic Institute of New York". His specialization as part of his master's degree was in the field of foundation and geotechnical engineering. His professional activity as a freelancer, in the field of consulting for foundations and geotechnics, began in 1981, and in 2002 the firm moved to operate within the framework of Eng. The company specializes in solving difficult geotechnical problems and unique foundation methods in addition to its current activity. - Assisted in the preparation of the article, Eng. Shlomo Lieberman, from G.A.S. - Construction and Bridge Engineering Ltd. .

Professional articles How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article How to choose a land consultant At M. Yuger Ltd., we take the profession of soil consulting and geotechnics seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. To read the full article Rock bolts to support the mountain wall Making a grout for the rock bolts that support the side of the mountain, in which "Yuger Engineers" served as the soil consultant To read the full article A barge on stabilized soil using different techniques The use of a barge on stabilized soil with different techniques - a lecture presented at the "Sixth Construction and Infrastructure Conference" of the "Association of Construction and Infrastructure Engineers" in November 2009. To read the full article Requirements for registration as a land consultant in the soil and foundation section How do you become a certified soil consultant? To read the full article The bridge over Boho river The project of the bridge over the Bohu river, in which Eng. M. Yuger served as a land consultant on behalf of the contractor Sollel-Bona, was intended for the railway line from Ashkelon to Be'er Sheva and in accordance with the constraints of preserving the environment and the complex infrastructure for a railway bridge - was unique in Israel. To read the full article Value engineering - reducing the cost of a construction project Value engineering in the field of construction, allows savings in the costs of the project and on the basis of studying and examining its various engineering aspects and formulating recommendations for changes in planning and implementation while maintaining the quality of the final product. To read the full article Land consultant A land consultant protects you and your interests in front of the professionals who are going to build your house: the consultant analyzes the nature of the soil and recommends how to establish the infrastructure to prevent drifting or subsidence of the building in the future. To read the full article Land and foundation consulting The field of soil and foundation consulting is a derivative of the field of geotechnics and is usually acquired from engineering studies at an accredited academic institution, or at other institutions that grant a certificate in this field. The land consultant himself, is the professional authority whose role is to protect you and to ensure your interests against whoever builds your house! To read the full article Soil stabilization - a network of underground rigid columns A lecture on "A network of underground rigid columns - a method for soil stabilization", given by Eng. Moti Yuger as part of the 11th Construction and Infrastructure Conference on 11/21/2019. To read the full article Soil anchors A soil anchor is a safety addition to buildings and construction processes, hence the importance of the anchor component as complex and unusual construction elements and their geotechnical and constructive aspects. To read the full article Soil anchors in Israel - vision and reality This article examines what is happening in the field of soil anchors about ten years after issuing the first Israeli standard in the field To read the full article The "Briga Towers" project by Yuger Consulting won the 2021 Construction Excellence Award A complex construction project, which was accompanied by Yuger Engineers Land Consultants Offices, won a prestigious award from the "Excellence in Construction" competition of the Haaretz Builders Contractors Association, the Foundation for the Encouragement and Development of the Construction Industry and out of a hundred projects submitted to the competition. To read the full article Soil drilling Experimental soil sampling (also known as trial drilling), in the process of formulating the soil report before the construction project, is a central and essential component that cannot be done without. To read the full article Soil drilling SPT SPT drilling (Standard Penetration Test) is intended for trial drilling and soil density testing. To read the full article

Etz Efraim building A second opinion for the project of a house built above 10-14 m of uncontrolled fill, and a solution that financially enabled the execution of the project. The challenge: The project entered the execution phase of piling drilling but encountered a problematic soil section consisting of a deep fill that did not enable the implementation of the solution given by the previous consultant. The solution: 2 execution solutions were given, the first - deep foundation while taking care of the landslides that occur during the execution and the second - stiffening the fill with a network of concrete columns and basing the structure on a barge (raft). The project was carried out successfully.

Nesher factory, Ramla Carrying out a variety of projects on the territory of the cement plant, including conveyors, pipeline bridges, industrial buildings and more. The challenge: The only cement factory in Israel, built and expanded over the years. Foundation of elements that are sensitive to displacements on thick and plastic clay. The solution: Maintaining and collecting all field investigations and geotechnical information throughout the plant. Carrying out a variety of foundation solutions, including pre-loading, soil reclamation with concrete piles and more.

A barge on stabilized soil using different techniques On the use of a barge on stabilized soil with different techniques - a lecture presented at the "Sixth Construction and Infrastructure Conference" of the "Association of Construction and Infrastructure Engineers" in November 2009. Alternatives to foundation solutions In this article we will present possible s olutions for the foundation using the "barge on piles" method, when instead of using reinforced concrete piles attached to the barge, "concrete pillars" or other material are used, while maintaining a space between them and the bottom of the barge in such a way that the stress applied to the barge, from the structure (vertical and horizontal) acts directly on the concrete columns. The purpose of the "pillars" is to serve as elements that stabilize and improve the properties of the soil mass in which they are installed, so that the combined mass can be attributed uniform improved mechanical properties when the system as a whole functions similarly to a barge on stilts, at lower costs. Another significant advantage is that the afore mentioned change allows the barge to be treated as a normal barge, based on land with improved properties, which simplifies the calculation of the barge, as a normal barge, with springs, relying on the new parameters determined by the land consultant. Barge on stilts In Israel and in the world it has been known for many years [Burland et al. (1977), Davis & Poulos (1972), Zeevaert (1957) ] (1979 (Hooper) ) as the method of establishing high-rise buildings and special buildings with heavy loads such as silos and storage tanks while combining barge and pilings when the pilings are mainly used as elements to reduce the subsidence expected in the barge. In this method the pilings are usually made as an integral part of the barge with a constructive connection between them. The piles in this method are calculated according to several alternatives: • A group of piles in a uniform distribution when the barge acts as a common head for the piles. In this situation the piles carry most of the load and the barge carries a small part of the load and the calculation is like that of a group of piles with a common head when the piles have an acceptable safety factor. • Piles evenly distributed under the barge, designed as "creeping" piles by calculating them for a tolerance of about 80% of the destruction tolerance and the total load between the piles and the barge is distributed accordingly. • Piles "creep" in an even distribution, where the piles are calculated for 100% of the load in destruction tolerance. In such a situation, the treatment of piles is only as subsidence reducers, while increasing the general security factor of the system. • Making groups of piles only in areas of heavy loads to reduce differential subsidence in the area of the barge, between more loaded and less loaded areas. With the development of the barge on stilts method and the experience gained, the question of the meaning and necessity of connecting the stilts to the barge was raised. When the piles are connected to the barge, most of the horizontal forces acting on the structure are transferred to the piles, due to their relatively high rigidity, and this can cause shear stresses and moments in the piles to the point of failure. This can require the addition of pilings beyond what is required to limit subsidence. In special buildings, where the useful loads are high and change (silos and silos), the connection also causes pullout forces in the piles that previously sank under the load that is removed afterwards. In light of this, they began making barges on piles without a constructive connection between them and even creating a space between the piles and the barge in such a way that the barge would not be in contact with the pile heads at all. As soon as there is complete separation between the piles and the barge, the reference to them can be changed and they can be seen as part of a system of stabilized and reinforced soil (1979, Hooper). One of the problems with the calculation methods of a barge on stilts as detailed above is the complexity and difficulty of the calculation. The calculation is essentially three-dimensional which also requires the use of advanced three-dimensional computer programs. This causes many engineers to shy away from the method, which therefore does not become common knowledge. Land stabilization and improvement There are currently several options for soil stabilization that can be used to improve the soil under the barge: • Stone pillars - with this method it is possible to drill, using modified methods, a borehole and fill it from the top with hard stone aggregate that will be tightened in stages using a vibrator. In cases where the bore is not stable, it is necessary to insert a corrective stepping stone into its lower part and tighten while lifting and tightening in stages which requires the use of special equipment. • Using the technology of Jet Grout columns - with this method, a drill is inserted to the planned depth and gradually raised while rotating and laterally injecting cement mortar at very high pressure in a way that produces columns of cement mortar that is also mixed with the local soil. • Drilling and casting of concrete columns using the "dry" method, or in case of stability and groundwater problems, drilling and casting using a CFA machine or bentonite technology. • Use of other reinforcing materials such as lime columns, thin concrete and CLSM, provided that their tolerance to the various troubles and their effectiveness in curbing subsidence are proven. calculation methods • As mentioned, one of the advantages of the application described above is that it allows for the simplification of the calculation method and bringing it to a situation where all that is required of the constructor is to calculate a normal barge on stabilized and improved ground that has the property of a spring coefficient proposed by (1867 Winkler), according to the relationship δ = κ ⋅ σ [where δ - the settlement at a certain point under the barge, κ - stiffness of the Winkler spring, or as it is called the "substrate modulus" and σ - the contact stress at the point]. As part of the development of stone and lime columns, different calculation methods were proposed, of which we have given her A weighted substrate number modulus was calculated for the methods described above for soil stabilization and improvement, such as by (Prof W. VanImple (1983) and (Dr H. Bredenberg (1983). An article was also published in 2002 (unsigned) by the Technion Institute titled Deep Mixing-Lime Columns in 2002. The mirror is also a calculation method. • Based on the above it is possible to calculate a weighted κ: Required data: 1. Determination of intervals x, y between the stiffening columns. 2. Finding the modulus of elasticity of the column and the ground. 3. Determining the cross-section dimensions of the column and its depth in the ground. Calculations: * The figure κtotal is used by the constructor for the barge calculations, while the calculation of the settlement in the structure can be performed by the foundation consultant, according to the shortening of the mass of the stabilized soil, plus the settlement in the ground below the stabilized soil. Summary The method simplifies the calculation of the foundation for the barge on the Winkler medium on the one hand and determining the properties of the medium on the other hand.

What is creative engineering? דף הבית / Creative engineering / Soil engineering is a critical part of any construction project. This is an area where every solution must meet an engineering audit and required rules of safety factors, geotechnical parameters and standards. These rules are the threshold requirements, but they are not the only parameters. When we come to plan the appropriate solution, we must also take into account cost and time saving aspects that will ensure higher profitability for the project. Creative engineering - the key to finding the most efficient and economical solution There are standard and accepted solutions in the field known to all consultants, but sometimes they are not the optimal solutions from an economic point of view, and in extreme cases their implementation may make the entire project useless. However, there are also unconventional solutions, which meet all the required rules but guarantee simplification of the problem and savings in costs and time. From the beginning, Yuger's office placed the client's needs at the center and always strived to offer the optimal solution for each project. The ability to do this is derived from decades of experience and ongoing monitoring of the professional literature and developments in the field in the world, but no less than this from the approach and worldview of creative engineering. In Yuger there is no problem that does not have a solution and there is not one possible solution. Each and every project is subject to in-depth thinking by the team and the search for alternative solutions "outside the box", compared to the standard solutions. Israel's leading firm in innovation and creativity This approach made Yuger the address for "difficult" projects for which no economic engineering solution could be found, and today many projects of other consultants come to our office, after the standard solutions did not work. This approach also made Yuger a leader in introducing modern foundation methods which over the years have become the standard methods. For example, in 1992, our office introduced to Israel the method of walls with soil nails, which was applied for the first time and with great success on the Tefen-Karmiel road. Today, 30 years later, stabilization of excavated walls and slopes with this method is common property. In conclusion, entrepreneurs and planners working with Yuger guarantee themselves a relative advantage in the field of soil stabilization. Yuger's creative engineering results in the best solution from an engineering and economic point of view. Sometimes it is worth millions. A selection of the complex projects we have dealt with Ha'Imahot st. Tiberias The construction of Ha'Imahot Street road in the problematic marlstone area The project View More Gaza strip underground barrier Construction of an underground barrier on a huge scale and in varying soil types The project View More Underground parking lot, Sha'are Zedek Hospital, Jerusalem A foundation solution for the parking lot that includes monitoring the implementation and providing local solutions The project View More Lod train The construction of a train terminal, including buildings, a fire station, platforms and bridges The project View More