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.

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

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).

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 .

Route 16 Bridges and tunnel portals planning project The challenge: A DB project with a very tight schedule that includes large and complex construction elements (bridges, tunnel portals, armored soil walls, sheetrock walls with rock bolts) in an urban area, an infrastructure, a flowing stream and a deep estuary. The solution: Familiarity with the area and close supervision of the field investigation and execution works throughout the entire project. Cooperation with a planning and execution team that works together on several projects (for example - Highway 6 North) and is able to work with synergy and particularly high efficiency.

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 challenge: A second opinion to examine the compatibility of the foundation solution with the rock quality findings. The solution: Carrying out a tour and escorting the earthworks and quarrying at the beginning of the project. Use of prior knowledge and familiarity with the site environment from nearby projects. Adjusting the foundation solution and reducing ~60% of the foundation volume (concrete and mortar).

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.

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.

TMA 38/1 Usishkin Tel Aviv An existing building based on slabs on top of thick clay near the groundwater level (contrary to the standards and construction methods used today). The challenge: Creating a stable structure that resists cracking. The common method is to make deep piles in groundwater at a high cost. This is compared to a creative solution by a barge. The solution: The stiffening of the structure by tying all the elements of the structure in a barge to force a uniform behavior.

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 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

Commercial building in Har Tuv industrial area A second opinion that led to a change in the execution method in two supporting walls and saved a lot of time while reducing costs by hundreds of thousands of shekels The challenge: Deep excavations of up to 20 m in problematic soil (marlstone), near buildings and active infrastructure. Aspiration to avoid permanent and temporary soil anchors. The solution: The solution included changing the anchors to nails on the first wall and turning the second wall into a graded wall instead of an anchor wall. A series of calculations and tests was performed to examine different support solutions using a software. Working closely with the customer (executive contractor) while examining alternatives and adapting them to the constraints and preferences of the customer. Making tiered rows of piles with horizontal connection of concrete floors and making permanent soil nails, as an alternative to permanent soil anchors.