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2004

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Articles 1111 - 1140 of 2785

Full-Text Articles in Engineering

Case Study On The Foundation And Site Geotechnical Evaluation For The Rehabilitation Of An Emergency Hospital Building, Ion Vlad Apr 2004

Case Study On The Foundation And Site Geotechnical Evaluation For The Rehabilitation Of An Emergency Hospital Building, Ion Vlad

International Conference on Case Histories in Geotechnical Engineering

This case study is about the foundation and the site geotechnical potential evaluation for the rehabilitation of an emergency hospital building, placed in Bucharest. This building was strongly damaged by the main earthquakes that occurred in Romania, within the last 30 years (March 4th, 1977, August 30th, 1986 and May 30th, 1990). The building had, from the beginning, an unfavorable structural concept, in what concerns its shape in plane. The paper presents the methods used for the rehabilitation of the existing building foundation, together with the integration of a new foundation for a new building, that appeared necessary to be …

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Monitoring And Stabilisation Of The Giants Seat Landslip, U.K., David E. Jones Apr 2004

Monitoring And Stabilisation Of The Giants Seat Landslip, U.K., David E. Jones

International Conference on Case Histories in Geotechnical Engineering

The landslip is located in the Giant’s Seat Woods area of Kearsley, Bolton in Greater Manchester, England. The ground conditions at the site comprise made ground material over mudstones of the Manchester Marls. An area of land crossed by Red Rock Lane had, since the late 1700s, experienced land slip resulting in the ground generally moving south towards the adjacent river. By the late 1990’s the movement of the slip had resulted in fractures and fissures under the road and damage to several other services. A project was developed to stabilise the land along approximately 130m of Red Rock Lane. …

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Slope Stability Aspects Of The Egnatia Odos Highway Project In Northern Greece, M. N. Skempas, A. W. Livadas Apr 2004

Slope Stability Aspects Of The Egnatia Odos Highway Project In Northern Greece, M. N. Skempas, A. W. Livadas

International Conference on Case Histories in Geotechnical Engineering

The section near the village of Koumaria of the Egnatia Odos highway included a 300 m long cut and cover structure near the foot of a slope being undercut by a river. The combination of the temporary steep cut slopes and the unfavourable weather conditions with low field shear strengths led to successive slope failures in that area and resulted in a heavily affected profile. As a result the cut and cover structure was abandoned in favour of an open cut and various remedial measures were applied for the rehabilitation of the affected area. In the case of another 140 …

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A Dangerous Place To Dig Excavation At The Toe Of Saluda Dam, Elena Sossenkina, Scott Newhouse, Matt Glunt Apr 2004

A Dangerous Place To Dig Excavation At The Toe Of Saluda Dam, Elena Sossenkina, Scott Newhouse, Matt Glunt

International Conference on Case Histories in Geotechnical Engineering

Remedial work on the Saluda Dam will entail excavation at the toe to depths of over 50 ft. Excavation at the toe of a large high hazard dam is an unusual event. Although statically stable the Dam doesn’t meet modern standards for dynamic stability. Based on the assessment of liquefaction potential, the dam requires remediation. The downstream hazard entails consequences of failure of potential loss of life. Due to such consequence, the Regulator called for renovation of Saluda Dam. Engineers evaluated several remedial alternatives. The chosen alternative entails excavation at the toe for construction of new RCC and Rockfill Berms. …

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Contact Analysis Of Separation Between Concrete Slab And Cushion Layer In Tianshengqiao Concrete-Faced Rockfill Dam, Bingyin Zhang, Ruifeng Shi, Zongliang Zhang Apr 2004

Contact Analysis Of Separation Between Concrete Slab And Cushion Layer In Tianshengqiao Concrete-Faced Rockfill Dam, Bingyin Zhang, Ruifeng Shi, Zongliang Zhang

International Conference on Case Histories in Geotechnical Engineering

Tianshengqiao concrete-faced rockfill dam (CFRD), with a maximum height of 178m, is the highest dam of the same kind in China and the second highest in the world. During the construction of the dam, some problems special for high CFRDs occurred, such as deficient of cushion layer and separation of concrete slab from cushion layer. In this paper, a finite element analysis is made to understand the deformation of the cushion layer and the separation between the slab and the cushion. Direct constraints method and Coulomb friction law are used to simulate the contact behavior between the deformable concrete slab …

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Performance Of A Highway Embankment Constructed Over Landfill Material, Paul J. Lewis, Jack Mansfield, Syed Ashraf, Kessi Zicko Apr 2004

Performance Of A Highway Embankment Constructed Over Landfill Material, Paul J. Lewis, Jack Mansfield, Syed Ashraf, Kessi Zicko

International Conference on Case Histories in Geotechnical Engineering

This paper presents settlement data over a period of 12 years for two portions of a highway embankment constructed over landfill material. Construction was completed in 1989 and included dynamic compaction to limit post construction settlement. A preload / surcharge was used over a separate portion of one of the highway embankments as an alternative foundation improvement technique for the purpose of comparison and evaluation of the effectiveness of the two methods. Elevation measurements taken over a period of 12 years are presented for comparison of post construction settlement of both dynamically compacted and surcharged sections of the highway embankments.

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Karkheh Storage Dam Cutoff Wall Analysis And Design, Behnam Shadravan, Ali Asghar Mirghasemi, Mehdi Pakzad Apr 2004

Karkheh Storage Dam Cutoff Wall Analysis And Design, Behnam Shadravan, Ali Asghar Mirghasemi, Mehdi Pakzad

International Conference on Case Histories in Geotechnical Engineering

Karkheh dam cut-off wall with an area of about 150000 m2 is the largest plastic concrete cut-off wall ever built in the world. The wall was designed on the basis of seepage and material behavior analysis. The design and construction of the wall was a great challenge in which in different stages, major design modifications were made based on existing construction facilities, updated geological conditions and cost optimization. The philosophy of “design as you go” was tried to be perfectly accomplished in this project. The cut-off wall connections to the dam body and other appurtenant structures such as power tunnels; …

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Analysis Of Behavior Of Embankments On Soft Soils Geotechnical Investigations And Instrumentation Access Of Embank Ments The Jitituba River Bridge, Sarita De Paula P. Cavalcante, Roberto Quental Coutinho, Alexandre Duarte Gusmão Apr 2004

Analysis Of Behavior Of Embankments On Soft Soils Geotechnical Investigations And Instrumentation Access Of Embank Ments The Jitituba River Bridge, Sarita De Paula P. Cavalcante, Roberto Quental Coutinho, Alexandre Duarte Gusmão

International Conference on Case Histories in Geotechnical Engineering

The present work will be analyzing the access embankments of the Jitituba River Bridge, placed on the Highway AL- 413, km 12,9 – São Luiz do Quintude, a small city next to Maceió, AL, Brazil, where this bridge was built, even before the access embankments. Due to the presence of a soft soil thick layer, that measures up to 12 meters of thickness, and to the construction sequence of the bridge embankments, there was a need to analyze not only its stability but also its general rupture and its vertical displacements, commonly considered in the projects of embankments of soft …

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Field Verification Of The Energy-Based Procedure To Predict The Liquefaction Potential Of Soil Deposits, M. Tao, J. L. Figueroa, A. S. Saada Apr 2004

Field Verification Of The Energy-Based Procedure To Predict The Liquefaction Potential Of Soil Deposits, M. Tao, J. L. Figueroa, A. S. Saada

International Conference on Case Histories in Geotechnical Engineering

This paper presents field evidence in support of the energy-base procedure to predict the liquefaction potential of soil deposits. Two recorded earthquake events which occurred at the Wildlife Site: Elmore Ranch earthquake (11/23/1987) and Superstition Hills earthquake (11/24/1987), representing nonliquefaction and liquefaction case histories respectively, were utilized to verify the energybased procedure in field situations. The nonlinearity and the degradation of shear stiffness and strength of soil deposits subjected to earthquake loading under undrained conditions were incorporated in the reconstruction of the shear stress-stain response. The effects of multi-directional excitation on the liquefaction potential and the build-up of pore water …

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Performance Of Improved Ground During The 2001 Nisqually Earthquake, Elizabeth A. Hausler, Mark Koelling Apr 2004

Performance Of Improved Ground During The 2001 Nisqually Earthquake, Elizabeth A. Hausler, Mark Koelling

International Conference on Case Histories in Geotechnical Engineering

Several sites in the Seattle area of Washington incorporated ground improvement as liquefaction mitigation or to increase bearing capacity prior to the 2001 Nisqually earthquake. Facilities with improved ground include an earthen dam, a waste repository embankment, lightweight and large plan structures, and bridge columns and approaches. The sites were improved using vibro-replacement stone columns, vibroflotation, or deep dynamic compaction. All sites performed extremely well, despite evidence of liquefaction and minor structural damage nearby. In this paper, 10 sites are summarized, and the performance of three sites located near liquefied or damaged areas will be described in detail. The detailed …

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Near Source Effects And Engineering Implications Of Recent Earthquakes In Turkey, Erol Kalkan, Korhan Adalier, Ahmet Pamuk Apr 2004

Near Source Effects And Engineering Implications Of Recent Earthquakes In Turkey, Erol Kalkan, Korhan Adalier, Ahmet Pamuk

International Conference on Case Histories in Geotechnical Engineering

The variation of both structural and geotechnical consequences of near-source effects are shown for densely populated environments, Kocaeli and Düzce (Turkey), situated on an alluvial fan at the western part of the 1500 km long North Anatolian fault (NAF) that resembles the San Andreas fault in California with its right-lateral and strike slip faulting mechanism as well as remarkably similar length and capability of generating damaging earthquakes. Recordings from two recent destructive earthquakes occurred in 1999 on the NAF suggest that nearsource impulse type ground motions may generate large input energy demands that have to be dissipated with few large …

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Consideration Of The Peak Horizontal Velocity, Akihiro Takiguchi Apr 2004

Consideration Of The Peak Horizontal Velocity, Akihiro Takiguchi

International Conference on Case Histories in Geotechnical Engineering

Examining the relation between peak horizontal ground acceleration and peak horizontal ground velocity of past earthquakes, the ratio of velocity increase to acceleration increase is small for larger motions. The reason is guessed that if the earth stiffness enters the plastic zone or the earth is destroyed at high level motion, the resistance to velocity increases. Therefore, when seismic design is formulated by considering the plastic zone of materials at high-level motion, the motion energy method using velocity is more suitable than the force method using responded acceleration.

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Behavior Of Reinforced Wall System During The 1999 Kocaeli (Izmit), Turkey, Earthquake, Ahmet Pamuk, Hoe I. Ling, Dov Leshchinsky, Erol Kalkan, Korhan Adalier Apr 2004

Behavior Of Reinforced Wall System During The 1999 Kocaeli (Izmit), Turkey, Earthquake, Ahmet Pamuk, Hoe I. Ling, Dov Leshchinsky, Erol Kalkan, Korhan Adalier

International Conference on Case Histories in Geotechnical Engineering

A four-span bridge together with a 10 m-high and 100 m-long bridge approach fill was one of the highway facilities damaged due to surface faulting along the Trans-European Motorway during 1999 Kocaeli Earthquake (Mw 7.4). The fault rupture crossed beneath an overpass bridge within a few meters away from the bridge abutment while damaging the approach fill which was reinforced with a double-faced mechanically stabilized earth wall (MSEW) system. The faulting-induced excessive tectonic ground deformations including near-field seismic shakings were the main sources of damage in the walls. Such effects, along with the others, caused cracks and panel separations in …

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Centrifuge Modelling Of Earthquake Effects In Uniform Deposits Of Saturated Sand, Paulo A. L. F. Coelho, Stuart K. Haigh, S. P. Gopal Madabhushi Apr 2004

Centrifuge Modelling Of Earthquake Effects In Uniform Deposits Of Saturated Sand, Paulo A. L. F. Coelho, Stuart K. Haigh, S. P. Gopal Madabhushi

International Conference on Case Histories in Geotechnical Engineering

Centrifuge models representing level uniform saturated deposits of relatively loose and dense sand were tested at Cambridge University's Schofield Centre to clarify the behaviour of these deposits under earthquake loading. The excess pore pressure, vertical propagation of the accelerations and ground surface settlements resulting from a model earthquake are presented and discussed. The results show that, for similar dynamic loading, the models undergo large shear stiffness degradation resulting from significant pore pressure build up, this taking place at a slower rate in the dense sand. As a result of the cyclic loading, the models suffer settlements, occurring mostly during the …

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Reduction Of The Vibrations Caused By Transport To The General Post-Office Of Moscow, V. A. Ilyichev, L. R. Stavnitser, V. Y. Shishkin Apr 2004

Reduction Of The Vibrations Caused By Transport To The General Post-Office Of Moscow, V. A. Ilyichev, L. R. Stavnitser, V. Y. Shishkin

International Conference on Case Histories in Geotechnical Engineering

After the completion of base reinforcement with cast-in-place piles, instrumental analysis of foundation vibration parameters was made on the basis of the vibration survey results. The analysis showed a considerable decrease in the level of vibrations caused by transport.

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Performance Of A Steel Sheet-Pile Barrier Against Ground Vibration Originating In Railway Traffics, Tadanori Nishimura, Masahiro Shoji, Kiyoshi Hayakawa Apr 2004

Performance Of A Steel Sheet-Pile Barrier Against Ground Vibration Originating In Railway Traffics, Tadanori Nishimura, Masahiro Shoji, Kiyoshi Hayakawa

International Conference on Case Histories in Geotechnical Engineering

In order to develop an effective and practical isolation method against ground vibrations caused by running trains, the authors tried to apply sheet pile walls beside of real railway tracks. Field tests were carried out to evaluate the effectiveness of this countermeasure for reducing the ground vibrations. An estimation method for vibration reduction by sheet pile walls is presented, being based on FEM simulation analysis

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Mitigation Of Train-Induced Ground Vibrations; Lessons From The Ledsgård Project, Mehdi Bahrekazemi, Anders Bodare, Bo Andréasson, Alexander Smekal Apr 2004

Mitigation Of Train-Induced Ground Vibrations; Lessons From The Ledsgård Project, Mehdi Bahrekazemi, Anders Bodare, Bo Andréasson, Alexander Smekal

International Conference on Case Histories in Geotechnical Engineering

Ground vibrations due to train traffic on ground surface railways built on soft soil can cause annoyance to people, disturb the function of sensitive machinery in nearby buildings and increase the maintenance costs of the track. At low frequencies (< 20 Hz) the level of vibrations is highly dependent on train weight and speed. This issue must be considered in the design of new railway lines or upgrading old ones. In 1997, shortly after inauguration of the X-2000 high-speed passenger trains between Gothenburg and Malmö in the southern Sweden, extremely high vibration levels were reported in the railway structure, nearby soil and the catenaries at the Ledsgård site and other locations along the newly built ¨West Coast Line¨. In order to mitigate the vibrations and allow the trains to run at their design speed of 200 km/h, soil stabilization using the lime-cement column method was carried out in summer 2000. Measurements before and after the countermeasure showed that, vibrations in the track at maximum speed (200 km/h) were reduced by factor of ten or more. The paper presents the soil stabilization project and some results from the measurements carried out in connection with it.

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Dominant Periods Of Expected Ground Motion Of Gyumri Territory By A Method Of Calculating Dominant Periods In Non-Homogenous Surface Layers Of The Earth's Crust, Hrachya Abrahamyan Apr 2004

Dominant Periods Of Expected Ground Motion Of Gyumri Territory By A Method Of Calculating Dominant Periods In Non-Homogenous Surface Layers Of The Earth's Crust, Hrachya Abrahamyan

International Conference on Case Histories in Geotechnical Engineering

The seismoresistance of buildings and constructions is substantially connected by the regularity of the ground vibrations during the strong earthquakes. The main character of any vibration is its highness of component periods. The periods firstly depend on the environmental ground. During the strong earthquakes the precise results we can get only by a method of instrumental records. During the Spitak earthquake in 1988 with M = 7.0 in Gyumri town, which is situated 30 km far from the epicenter and had developed net of seismic stations it has been got only one record, which did not give any real imaginations …

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Experimental Investigations On Four Electric-Generators Foundation Systems, Ion Vlad, Mirela-Nausica Vlad Apr 2004

Experimental Investigations On Four Electric-Generators Foundation Systems, Ion Vlad, Mirela-Nausica Vlad

International Conference on Case Histories in Geotechnical Engineering

Machinery can affect engineering structures, as well as foundations supporting them and resting directly on the soil. Machines cause distinct dynamic forces depending on its manufacturing purposes, operating conditions, maintenance, design details a.s.o. The study presents the behavior of four machine – foundation systems in a dynamic operating regime. Two of the foundation systems support electric generators groups (CATERPILLAR type), operating at a speed of 1500 rpm, the other two sustaining similar PERKINS models, operating at the same speed. Steady state horizontal and vertical vibration tests were performed on the four foundations. The natural frequencies and amplitudes of vibrations were …

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Vibration Prediction And Optimization: The Case Histories Of Quarry Blasts In Thailand, Sanga Tangchawal Apr 2004

Vibration Prediction And Optimization: The Case Histories Of Quarry Blasts In Thailand, Sanga Tangchawal

International Conference on Case Histories in Geotechnical Engineering

Vibration measurements for 3 types of quarry rock at a number of sites in Thailand have been carried out and analyzed. The dominant vibration parameters in bench blasting are based on the peak particle velocity and the blast frequency. These readings are evaluated using the threshold limit of damage and the probability method. Results indicate that the damage possibility is low and within the acceptable limit. A further step of evaluation is to predict the safe distance from vibration by utilizing the modified trend line. This paper also describes steps taken in the planning stage to determine the optimal design …

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Dynamic Response Of Bored Tunnel: Modelling And Testing, G. Esposito, H. Stuit Apr 2004

Dynamic Response Of Bored Tunnel: Modelling And Testing, G. Esposito, H. Stuit

International Conference on Case Histories in Geotechnical Engineering

The Botlek railway tunnel is part of the cargo line “Betuweroute”. This line will run from the port of Rotterdam, The Netherlands, to Germany. The Botlek railway tunnel is a shield driven tunnel and consists of 2 tubes of 1800 m length. The tunnel was bored in typical Dutch soft soil. As part of the construction project, an extensive investigation of the dynamic response of the tunnel was carried out. The investigation is focussed on the dynamic effects from the source of the vibrations, the influence of a freight train on the tunnel to the propagation of the vibrations in …

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Simplified Methods For The Surcharge Lateral Pressure Distribution, Kumars Zand-Parsa Apr 2004

Simplified Methods For The Surcharge Lateral Pressure Distribution, Kumars Zand-Parsa

International Conference on Case Histories in Geotechnical Engineering

A surcharge load is any load such as spoil embankments, streets or highways, construction machinery which is imposed upon the surface of the soil close enough or distance to the excavation. This load causes a lateral pressure to act on the system in addition to the basic earth pressure. One of the most famous methods is Boussinesq strip method. After many considerations on adjacent surcharge, it was found that the distribution of lateral surcharge had not accuracy, and the shape and also the magnitude of the lateral pressure were not correct. In this paper besides considering the shape and magnitude …

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Deep Basement Construction Through An Existing Basemement At The Central Business District Of Hong Kong, Stephen T. M. Young, James W. C. Sze Apr 2004

Deep Basement Construction Through An Existing Basemement At The Central Business District Of Hong Kong, Stephen T. M. Young, James W. C. Sze

International Conference on Case Histories in Geotechnical Engineering

In June 2002, a 32-storey high quality commercial building with a 3-level deep basement, namely Chater House, was completed. The Chater House site was previously occupied by the Swire House and its basement structure and foundations obstructed the construction of the new basement. Temporary pipe pile walls with grout curtain were used to facilitate local trimming/demolition of the existing basement slab and pile caps. Diaphragm walls were constructed through the locally demolished basement to retain the soils for the 15m deep excavation and the new basement was constructed by top-down construction method. In addition, the diaphragm walls and large diameter …

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Deformations Of The Retaining Structures Upon Deep Excavations In Moscow, V. A. Ilyichev, P. A. Konovalov, N. S. Nikiforova, I. A. Bulgakov Apr 2004

Deformations Of The Retaining Structures Upon Deep Excavations In Moscow, V. A. Ilyichev, P. A. Konovalov, N. S. Nikiforova, I. A. Bulgakov

International Conference on Case Histories in Geotechnical Engineering

Foundation trenches for the buildings having underground floors and vehicular traffic tunnels are excavated in Moscow in congested urban housing environment. A retaining structure is a “slurry wall” made of cast-in-place reinforced concrete), and “soil-mixed-wall”. Retaining structures of trenches are fastened with the help of anchors, metal tie-beams, struts or floor structures. During the monitoring performed at major Moscow construction sites with deep trenches the (NIIOSP) named after Gersevanov created a database on retaining structures deformations.

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Numerical Modeling Of Bistun Rock Slope Behavior In Grouting Using Discrete Element Method, S. Taghipoor, S. A. Amirshahkarami, H. Salari Rad Apr 2004

Numerical Modeling Of Bistun Rock Slope Behavior In Grouting Using Discrete Element Method, S. Taghipoor, S. A. Amirshahkarami, H. Salari Rad

International Conference on Case Histories in Geotechnical Engineering

The discrete element method is an established method for considering discontinuous deformation behavior of joint systems. This paper provides a description of this algorithm used to model coupled hydraulic and mechanical effects of joints on rock mass behavior. The paper also describes Bistun rock slope stability analysis using empirical (SMR) and numerical (D.E.) methods. The behavior of the rock slope and rock blocks containing Bistun epigraph in grouting and groundwater flow has successfully simulated using UDEC (Universal Distinct Element Code) program. Finally, results have been presented and discussed on slope stability condition and grouting pressure.

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Observations And Performance Of A Soil Nail Shoring Wall In Seattle Silts And Clays, Shaun D. Stauffer, Daniel J. Campbell, Andrew E. Sparks, Keith Miller, Michelle Leviant Apr 2004

Observations And Performance Of A Soil Nail Shoring Wall In Seattle Silts And Clays, Shaun D. Stauffer, Daniel J. Campbell, Andrew E. Sparks, Keith Miller, Michelle Leviant

International Conference on Case Histories in Geotechnical Engineering

The Seattle Central Library project, which replaced the existing downtown library, consists of a twelve-story building with several below-grade levels. The excavation encompassed an entire city block and had plan dimensions of approximately 250 feet by 240 feet. The original excavation depth was up to 53 feet in height. The excavation was made in highly overconsolidated Seattle silts and clays (Lawton Clay). The Lawton Clay has been documented to exhibit expansive behavior along planes of weakness associated with stress relief upon excavation. The original excavation was designed to be supported using a tieback soldier pile wall, typical of shoring systems …

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Artificial Island Construction In North Caspian Sea, Kazakhstan, Rasin Düzceer, Alp Gökalp, Riza Yörük Apr 2004

Artificial Island Construction In North Caspian Sea, Kazakhstan, Rasin Düzceer, Alp Gökalp, Riza Yörük

International Conference on Case Histories in Geotechnical Engineering

This paper describes one of the most challenging off-shore artificial islands construction in the North of Caspian Sea, Kazakhstan. Two 130 m by 90 m artificial island where sheetpiling was employed were constructed for oil exploration. The islands are closed box structures whose front walls are composed of 15 m long sheetpiles and tied to the back sheetpile wall. Sheetpile driving is done by the aid vibro-hammers with low-pressure water jet assistance. The proposed construction site is extremely sensitive environmental area, known as “Special Ecological Zone” and “Specially Protected Zone”. For this reason very strict environmental regulations are implemented in …

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Design, Construction, And Performance Of A Deep Braced Excavation, S. J. Boone, J. Westland Apr 2004

Design, Construction, And Performance Of A Deep Braced Excavation, S. J. Boone, J. Westland

International Conference on Case Histories in Geotechnical Engineering

The engineering approach to design and specification development for a deep excavation is presented along with construction instrumentation data that illustrates the concepts, criteria, and performance of the excavation shoring system. The project included an excavation of up to about 20 m depth, over 650 m long, and 20 m wide made through generally competent glacial overburden with 46 structures located immediately adjacent to the excavation. Excavation support was achieved using a braced soldier-pile and lagging wall system. A detailed instrumentation program was undertaken by the owner to monitor contractor compliance with ground and structure movement criteria. Semi-empirical and theoretical …

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Excavation In Deep Soft Lacustrine Soil Deposit, Berhane Gebreselassie, Hans-Georg Kempfert Apr 2004

Excavation In Deep Soft Lacustrine Soil Deposit, Berhane Gebreselassie, Hans-Georg Kempfert

International Conference on Case Histories in Geotechnical Engineering

The paper presents a case study of a supported excavation in a deep soft lacustrine soil deposit located in the city of Constance, southern Germany. Besides demonstrating the construction aspect, the field measurement and monitoring results of the excavation project, the paper illustrates a back analysis of the project using the finite element method. It was revealed that in addition to the understanding of the soil behaviour, the soil-structure-interaction behaviour, and their simulation using an advanced constitutive soil models, the understanding and simulation of each detail of the construction process is also equally important. The study underlines the important of …

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Hydro-Mechanical Numerical Analysis Of Grouting Galleries In Azadi Rockfill Dam, S. Taghipoor, H. Abbasi Apr 2004

Hydro-Mechanical Numerical Analysis Of Grouting Galleries In Azadi Rockfill Dam, S. Taghipoor, H. Abbasi

International Conference on Case Histories in Geotechnical Engineering

Azadi rockfill dam is located on Zemkan River in the west of Iran. There is a deep permeable zone in the rock mass of the foundation. So, the grouting galleries are considered in two different levels to sealing the foundation successfully. The lower gallery is more critical and is studied in this paper. The critical sections that are studied are at the deepest zone of left abutment, deepest zone of right abutment and the middle part of the dam axis. In this paper, the stability conditions of the mentioned sections are studied using different methods including empirical, analytical and numerical …

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