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Ha'Imahot Street, Tiberias The construction of Ha'Imahot Street road in the marlstone area was problematic - a method of execution saved millions of shekels The challenge: Marlstone area is prone to landslides, a fact that did not allow the completion of the road to the west. In addition to the road, the last structure towards the additional road section slid towards the northwest, towards the road. The solution: Before we got involved in the project, a very complex solution that included piles and permanent anchors in marlstone was proposed. We proposed an alternative solution of "stilt farms" only, where the road itself is a concrete surface cast on the stilts. The piles were 90 cm and 110 cm in diameter and 50 m deep, and were built as a grid across the width of the road to its western end. The assessment of the execution rate of the piles with the existing equipment in Israel was 1 pile every two days, but with the help of an imported machine the actual rate was 1-2 piles per day. The solution resulted in a huge saving of time and money estimated in millions of shekels at the very least.

Excavations of the City of David Jerusalem < back The challenge: · Tunnel mining in an urban, densely populated area, at a shallow depth (a few meters under streets and roads) in a soil section consisting of heterogeneous fill. Examining the quality of the mined material and determining engineering parameters for planning and optimizing the support solutions. the solution: · Carrying out a set of field tests and adapting them to the conditions and constraints in the field. Crossing the information from the field investigation to the behavior of the tunnel, the monitoring results and the behavior of the mining fronts.

Construction of a luxury residential complex at the top of the coastal cliff in Arsuf The challenge: Foundation at the top of the coastal cliff, exposed to the elements and the influence of the sea. The solution: Performance of slope stability calculations for the entire slope, beyond the building field, stabilizing the slope in areas of weakness and adjusting the foundation.

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. * The lecture presents the progress in Israel and in the world, in a relatively new field of armor and land reclamation using a network of subterranean concrete columns drilled and cast using methods such as piles ("dry", CFA, bentonite) - in Israel, and cement mortar columns and others - abroad. * The lecture on this topic was preceded by my lectures at the 6th Conference on Construction and Infrastructure 2009, the 3rd Conference on Buildings and Bridges 2013 and the 9th Conference on Construction and Infrastructure 2015. * In the first stage, this technology was used to stabilize soil under railway embankments, roads and bridges, and gradually this solution was used for tanks, industrial buildings and ordinary buildings. The foundation principle: it looks like a piling, but it's not! The principle of foundation in this method is such that looks like Cullen, but in reality he is not. Soil stabilization and improvement As a result of the approach of referring to rigid columns and the ground, as a system of stabilized and reinforced soil, the following methods can be used to produce the columns (CMC, RI): * Clean cement mortar columns, or mixed with soil * Jet Grout columns * Concrete columns drilled with the "dry" method/CFA/bentonite. The columns in the above methods can include screwing, or without screwing, depending on the type of expected hassles, and their geometric location. This method is not foundation piles and/or "restraint" piles. The elements are completely separated from the structure above, by a layer of granular substrate designed to distribute the loads from the structure above. Methods for making hard pages There are several methods for making rigid columns in a soil stabilization approach. Comparison: stilts vs. concrete columns Comparing piling foundations versus concrete columns. Aspects of the method * When the structure being treated is expected to horizontal forces due to the geometry of the site, earthquakes, etc., it is necessary to reinforce the columns with concrete which can be individual rods - with cement mortar columns and concrete cages - with drilled concrete columns. * Not connecting the columns to the building allows for simpler behavior, and the reduction of seismic disturbances between the building and the ground. * As a result, the foundation of the structure above is shallow and includes slabs and barges for the structures above and a layer of bedding to spread the burdens. In the case of dirt embankments, there is no need for plates and barges. Improving geotechnical parameters * Before installing the underground concrete columns, the existing soil has low values of E, k, and 𝜎, and therefore, has a high potential for failure and subsidence. * After installing the hard posts the values of E, k, and 𝜎 improve greatly, and the potential subsidence decreases accordingly. * The improvement achieved is a function of the diameter of the columns, the distances between them, the type of filling material (cement grout, concrete, other). Behavior of rigid columns under uniform pressure Development of the failure mechanism in the LTP bearing layer. Deployment of the efforts at the main level of the concrete columns. Negative friction enables the development of the arching phenomenon. Software and methods for designing CMC/RI columns Methods and software that help in column planning RI \ CMC. *Finite element software (PLAXIS): 2D axisymmetric 2D plane strain 3D * Analysis for global stability (SLIDE, LARIX) * Analysis for stability in earthquakes (LARIX, SHAKE) * Dedicated software for CMC/RI * Deterministic formulas Examples from Israel Development of the Ramot neighborhood in Jerusalem - Stabilization of filling pits for the foundation of armored earth walls at a height of 20 meters

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. Soil anchors are used to stabilize buildings and to transfer loads from the front and surface to the depth of the ground. The soil anchor was developed as a modern solution for temporary strengthening of the soil and when it is necessary to carry out a deep excavation near existing buildings and/or to great depths that require the use of retaining walls. The anchor makes it possible to strengthen the lining walls and prevent collapse and in a way of transferring and distributing the loads in depth and width. From a review of the Israeli standards and general and special specifications such as TI 940 part 4.2, it appears that these elements constitute a complex category, which includes a constructive aspect on the one hand, and a geotechnical aspect on the other hand. Engineer Moti Yuger, owner and CEO of Yuger Soil Consultants, explains: "Every year in Israel about -20,000 anchors are used, in many and varied projects. Most of the anchors (about 95%) are temporary anchors, 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's existence, which reaches 120 years in public projects" (Yuger consultants, soil anchors in Israel - vision and reality). Hence its great centrality in complex construction processes and their geotechnical and constructive consequences. The soil anchor Soil anchors are used in a variety of applications including: walled excavations for basements, in places where open excavations are not possible, due to considerations of space and risk to buildings and infrastructure, a means of protection against sliding of slopes, 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 by Underground construction, below the groundwater level. Sometimes the excavation is open and when it comes to excavation near an existing building and sometimes closed excavation under an existing building (for example digging a parking lot or basement) and for the benefit of strengthening the building against collapse or in a wide variety of needs such as, "walled excavations for basements, in places where open excavations are not possible, due to space considerations and risk to buildings and infrastructures, a means of protection against landslides, to receive the expected inconveniences from the planned construction such as dynamic forces caused by wind and earthquake disturbances, as well as uplift forces caused by underground construction, below the groundwater level". In essence, soil anchors are used as a safety supplement in the construction process and therefore in 2011, a detailed Israeli standard was issued for the first time, dealing with soil anchors, TI 940 part 4.2, called "Geotechnical design: strengthening and stabilization of buildings for engineering purposes - soil 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)" . "Soil anchors have been used for years in the construction industry to stabilize buildings, slopes, retaining walls, dam piers, and more. The primary and most important purpose of a soil anchor is to transfer forces from the front of the building to a stable area in the subsoil. This stability is achieved through a significant increase in the normal forces acting on the planes potential destruction. Treading the soil anchors for labor required in advance, may reduce future displacements of the anchored structure. Soil anchor alternatives should take into account the advanced technology used to recruit relatively high labor forces, while immediately checking the short-term and long-term endurance" (Wikipedia). In planning and characterizing the soil anchors, a number of technical and environmental indicators are taken into account, such as the type of soil, groundwater levels in the immediate area, nearby buildings, the type of soil and its coefficient of density and weight, and more. Soil anchors can be a horizontal ground anchor or a vertical ground anchor and according to the strengthening requirements of the structure in question and have been found to be effective in a wide variety of soil types and uses. The depth of the anchor should be at least 15 meters and the average anchor can support up to 120 tons of weight and its load distribution is about 12 square meters from the retaining wall. Soil anchor types Soil c hemical anchor - an anchor that differs in the type of material from which it is produced and the production method in the field based on injection, mixing or capsule (mixing materials from containers). Mechanical anchor - an anchor whose locking is done by screwing or closing a nut head. Another division is the way the anchor is used: Temporary soil anchors - used to support decking walls for an acceptable limited period of up to 24 months (subject to the 940.4.2 standard). At the end of the castings, the load passes from the anchors to the ceiling and the walls and anchors themselves are practically disconnected. Retractable soil anchors - function similarly to temporary anchors, but at the end of the work they are pulled out of the ground and in accordance with various space and environmental limitations. Fixed soil anchors - long-term permanent support of the structure for a period of at least 120 years (subject to TI standard 940.4.2). Relying on fixed anchors is required in the absence of support alternatives such as ceiling and walls and they are made of reinforced materials and protection against corrosion and more. Polymer soil anchors - the use of polymer is intended to enable future excavation and soil drilling in the construction area and for example in the future planning of transportation tunnels for trains or vehicles. The anchor itself is a temporary ground anchoring solution and is not used for long-term support of the upper structure. Other anchors - soil anchors such as rock screws or earth nails and more. It is important to note that choosing between a mechanical or chemical soil anchor varies and depends on many different variables and as a result of the intended use as permanent or temporary. Possible failures in soil anchors 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 façade, 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. Anchors develop relatively high service tolerances for each anchor. This makes it possible to reduce 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 the fact that failure of a single anchor may create progressive failures in the anchors .

מהנדס קרקע וביסוס מהנדסים גאו-טכניים יעוץ קרקע וביסוס About Accessibility Statement - Yoger Engineers website Last update date: 12/10/2022 We, at the Yoger Engineers company website, respect all segments of the population. Therefore, we have drafted this accessibility statement to make it clear to you exactly what steps have been taken to ensure the inclusion and protection of all populations. The level of accessibility on the site The Web Content Accessibility Guidelines (WCAG) define requirements for designers to improve accessibility for people with disabilities. They define three levels of compliance: Level A, Level AA and Level AAA. Our website meets the AA accessibility level according to the WCAG standard. However, there may be exceptions and pages that do not meet this standard, in which case, please let us know and we will do our best to correct. The way we made the adjustments We made the adjustments through manual testing of various aspects of the site as well as through the accessibility wizard of the WIX platform, on top of which the site was built. The adjustments we made on the site In order to comply with the accessibility instructions, we have made several adjustments to the site. These include: Adjustments were made for browsing using a keyboard, trainings were made for the staff, the texts were written in a readable language, colors were chosen that make it easier for the users to read, all the images have a textual indication, the navigation structure of the site is fixed, you can use the keyboard and the mouse wheel to enlarge and reduce the text. Making contact and inquiries For any question or inquiry, the accessibility officer on the site will be available for you. You can contact her as follows: Alice French Phone: 09-8911401 Email: allis@engyuger.com

מהנדס קרקע וביסוס מהנדסים גאו-טכניים יעוץ קרקע וביסוס About Accessibility Statement - Yoger Engineers website Last update date: 12/10/2022 We, at the Yoger Engineers company website, respect all segments of the population. Therefore, we have drafted this accessibility statement to make it clear to you exactly what steps have been taken to ensure the inclusion and protection of all populations. The level of accessibility on the site The Web Content Accessibility Guidelines (WCAG) define requirements for designers to improve accessibility for people with disabilities. They define three levels of compliance: Level A, Level AA and Level AAA. Our website meets the AA accessibility level according to the WCAG standard. However, there may be exceptions and pages that do not meet this standard, in which case, please let us know and we will do our best to correct. The way we made the adjustments We made the adjustments through manual testing of various aspects of the site as well as through the accessibility wizard of the WIX platform, on top of which the site was built. The adjustments we made on the site In order to comply with the accessibility instructions, we have made several adjustments to the site. These include: Adjustments were made for browsing using a keyboard, trainings were made for the staff, the texts were written in a readable language, colors were chosen that make it easier for the users to read, all the images have a textual indication, the navigation structure of the site is fixed, you can use the keyboard and the mouse wheel to enlarge and reduce the text. Making contact and inquiries For any question or inquiry, the accessibility officer on the site will be available for you. You can contact her as follows: Alice French Phone: 09-8911401 Email: allis@engyuger.com

Soil and foundation consulting The field of soil consulting and foundation engineering is a derivative of the field of geotechnics and is usually acquired from engineering studies in an accredited academic institution, or in other institutions that grant a certificate in this field. The land consultant himself, is the professional authority whose role is to protect you and ensure your interests against whoever builds your house! Naturally, each soil has specific permanent characteristics (sand, rock, clay, chalk, etc.) and its own static a nd dynamic requirements, but the soil can react and behave differently when the environment changes from site to site. Therefore, a point-by-point, professional examination that takes into account all aspects and is based on a geological soil survey and drilling is extremely essential. The soil consultant's recommendation and report refers to the planned infrastructure (construction as a building, house, road, bridge, etc.) and is based on an in-depth geological examination of the soil type and its environmental characteristics. The foundation and taking into account the planned construction infrastructure as mentioned. In practice, the soil and foundation consulting process requires appropriate training in the field of geology and in order to supervise the test drillings, after which a "field of samples" will be presented which will be integrated into the soil report, which will include a recommendation for the nature and depth of the required foundation. The field tests can be based on SPT testing or full depth drilling as well as soil sampling After the construction engineer completes the execution plan, the land consultant adds his approval and in accordance with the findings he presented earlier. In most cases, the land and foundation consultant will also accompany the actual execution upon arrival at the work site and to make sure that the contractor implements the land consultant's recommendations. According to the findings in the field, a consultant The land can present interim reports with warnings or comments and/or a final report for approval of the execution. In addition, the process is accompanied by legal documents and reports that constitute binding professional instructions for the other professionals involved in the project, therefore a professional land consultant will accompany himself with legal and technical assistance as required - make sure of this in advance! How do you become a land consultant? To become a certified land consultant and so that you can identify and verify that your consultant is indeed properly certified - check the requirements of the Ministry of Labor and Welfare and whether he is registered in the "Land and Foundation" section as required.

Lod train Construction of a train terminal, including an administration building, a fire station, extension of platforms and bridges at the Lod train station - an active and central station. The answer we gave in the project included: General concentration of the findings of the field investigation and geotechnical knowledge in the general area of the Lod train station. Accompanying the laying and foundation works in a large number of projects allows for a thorough acquaintance with the properties of the soil and possible execution methods.

Commercial & office building in Hadera industrial area A second opinion for the logistic center on an area of 11 dunams, which saved the developer millions of shekels and shortened the execution time. The challenge: Soil conditions on the site were challenging. The upper layer of soil is filled with sandy loam, and beneath it is a thick clay loam. Groundwater appears at a depth of 3.0 m. The previous soil consultant of the project gave a solution of large and deep piles, a design that will make the project significantly more expensive. The solution: Replacing the foundation method with the CMC method, making a network of concrete pillars without grouting to harden the soil layer. The network was performed using several CFA machines that worked on site. Finally a barge was cast on the hardened ground.

Choosing a land consultant At Eng. M. Yuger Ltd. we take the soil consulting and geotechnics profession seriously, that's why we chose to present you with a "grocery list" that will help you choose your soil consultant. In addition to the necessary academic studies, the graduate must register in the labor branch of the Ministry of Economy and Industry (formerly the Ministry of Labor and Welfare) in the "Soil and Foundation" section if he meets the following requirements. Of course, in order to meet the conditions for choosing a soil consultant, which is recommended here, it is important to first meet the basic requirement - registration in the soil and foundation section. Alternative A: studying relevant subjects Having a bachelor's degree in civil engineering and registered in structural engineering, who will prove that a person has studied and successfully passed the subjects according to the list below (for example as detailed in the Technion catalog), whether he studied at any recognized institution in Israel or abroad: The two subjects (prerequisite subjects given in the bachelor's degree): 014409 - Geomechanics 014411 - Soil engineering and the following professions: 019003 - Numerical methods for engineers 018420 - Advanced soil mechanics 018417 - Seepage and slope stability 019427 - Constructive laws in geomechanics 019430 - Foundation 018416 - Introduction to soil dynamics 018418 - Supporting structures 016421 - Field investigations in geomechanics 019424 - Geotechnical aspects of an earthquake 019425 - The theory of plasticity in soil mechanics 019429 - Land improvement and slope stabilization 016403 - Introduction to rock mechanics 019908 - Advanced Engineering Geology 018423 - Advanced Seminar in Soil Engineering A total of 16 professions. Alternative B: Master's degree in civil engineering with specialization Having a bachelor's degree in civil engineering and being registered in the civil engineering branch in the buildings section and having a master's degree in civil engineering - specializing in geotechnics (soil and foundation).

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