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Case Histories For Today's Geotechnique, R. B. Peck
Case Histories For Today's Geotechnique, R. B. Peck
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Case History - Hyperbolic Cooling Tower Foundation, L. J. Almaleh
Case History - Hyperbolic Cooling Tower Foundation, L. J. Almaleh
International Conference on Case Histories in Geotechnical Engineering
This paper summarizes the design considerations and construction techniques employed during the construction of two hyperbolic cooling tower foundations. Included are descriptions of the site conditions, foundation loading requirements, drilled pier design techniques, construction coordination, and foundation installation.
Case History On Dewatering Problems In Shanghai, L. X. Shi
Case History On Dewatering Problems In Shanghai, L. X. Shi
International Conference on Case Histories in Geotechnical Engineering
This paper deals with the dewatering problems in soft soils; it also describes the historical review of the dewatering work in the Shanghai region. In some cases, the measures taken in preventing the settlement of the neighbouring buildings have been introduced.
Construction Of The Key Lake Tailings Facility, R. B. Knight, J. P. Haile
Construction Of The Key Lake Tailings Facility, R. B. Knight, J. P. Haile
International Conference on Case Histories in Geotechnical Engineering
Construction of the Tailings Storage Facility for the Key Lake Project a major uranium mine in northern Saskatchewan, Canada, was completed in June, 1983. Principal design features of the tailings facility are an underseal and underdrainage system over the entire area, systematic deposition of the tailings in thin layers using the sub-aerial technique, and continuous removal and recycling of all surface water and underdrainage outflows to the mill for treatment. These features are designed to achieve a consolidated, drained tailings deposit suitable for immediate decommissioning QD completion of milling, and with a minimal potential of long term seepage. The design …
Densifying A Landfill For Commercial Development, S. B. Steinberg, R. G. Lukas
Densifying A Landfill For Commercial Development, S. B. Steinberg, R. G. Lukas
International Conference on Case Histories in Geotechnical Engineering
This paper presents a case study of a dynamic compaction ("pounding") project, undertaken in Skokie, Illinois. The purpose was to densify a 50-ft deep former municipal waste landfill for support of a one-story warehouse structure on shallow foundations. The majority of the pounding was performed utilizing a 15-ton weight falling from a height of 60 ft. In some areas, lower energy levels were used for surface compaction. All phases of the project are discussed, beginning with the subsurface exploration program and geotechnical analysis, through the experimental test pounding section, and the final check borings to observe that the "production" pounding …
Design And Construction Of A Railway Yard, Embankment And Foundations Under Difficult Groundwater Conditions, Hari D. Sharma, S. Sengupta, Glen Harron
Design And Construction Of A Railway Yard, Embankment And Foundations Under Difficult Groundwater Conditions, Hari D. Sharma, S. Sengupta, Glen Harron
International Conference on Case Histories in Geotechnical Engineering
This paper describes four design and construction cases that were identified, investigated and solved at the site of a major industrial project located in Central Alberta, Canada. These consisted of cases where: (i) high artesian water pressures were encountered in a stratum that was planned to be excavated during cut and fill operations for a railway yard area, (ii) an embankment was to be built over an area that became waterlogged due to over excavation, (iii) a year round drainage system was to be provided below a railway embankment where an icing (pingo shaped) problem was encountered in winter, and …
Design Of Road Cut Adjacent To Existing Structure, G. C. Whited, C. N. Laughter
Design Of Road Cut Adjacent To Existing Structure, G. C. Whited, C. N. Laughter
International Conference on Case Histories in Geotechnical Engineering
Interchange improvements within an urban environment required the deepening of a hillside cut. Design restraints required as deep a cut as possible without disturbing a water tower located at the crest of the slope or interfering with a shopping center at the toe. The water tower, constructed in 1933 with a steel tank encased in a concrete and brick structure, was founded on shallow spread footings. Foundation soils were silts and silty sands with seams of silty clay. The design investigation involved hydrogeologic studies, SPT borings, undisturbed sampling, laboratory testing, and stability analyses. Laboratory studies involved routine and unusual testing …
Dewatering Of The Construction Site For A 200-Foot Diameter Clarifier Tank Founded On Sand And Gravel, Grover C. Cox Iii
Dewatering Of The Construction Site For A 200-Foot Diameter Clarifier Tank Founded On Sand And Gravel, Grover C. Cox Iii
International Conference on Case Histories in Geotechnical Engineering
This paper presents the preliminary design, the field modifications applied to the final design, and additions made to the dewatering system for a wastewater treatment plant. The site history is described, as are the exploration, design and construction phases of the dewatering operation. The difference between the predicted results and the actual results and lessons learned from experience in the field are discussed. The data includes design parameters for hydrological applications derived from the site soils and the groundwater elevations from one month before the beginning of construction through the construction of the clarifier tank and an additional pump building.
Dewatering, Hydraulic Failure And Subsequent Analysis Of A Sheeted Excavation, G. E. Bauer
Dewatering, Hydraulic Failure And Subsequent Analysis Of A Sheeted Excavation, G. E. Bauer
International Conference on Case Histories in Geotechnical Engineering
A 16m deep sheeted excavation failed by piping of the base. The sequence of events leading to this failure is described and served as a field case to study the hydraulic nature of the project using flownet, electrical analogy and finite element methods.
Direct And Indirect Influence Of Mining Related Subsidence On Structural Damages - A Case Study, H. J. Siriwardane, L. K. Moulton
Direct And Indirect Influence Of Mining Related Subsidence On Structural Damages - A Case Study, H. J. Siriwardane, L. K. Moulton
International Conference on Case Histories in Geotechnical Engineering
An investigation of causes of damages to a structure located at a toe of a hillside over an undermined area is described. The investigation included a finite element analysis and an analysis of landslide susceptibility of the hillside. Direct and Indirect influence of mining activity appears to be the cause of structural damages.
Dykes On Clay Foundation At Bersimis 2, S. Z. Akber
Dykes On Clay Foundation At Bersimis 2, S. Z. Akber
International Conference on Case Histories in Geotechnical Engineering
This paper discusses the behaviour (settlement, high foundation pore pressure, horizontal displacement and seepage) of two dykes founded on a thick clay deposit, since their completion in December, 1958 to date. In the first case, coarse and fine sand layers successively cover an over sixty meters thick clay deposit; in the second case, an eight to thirty meters thick clay layer is underlain by a heterogeneous granular deposit. Foundation treatments including problems encountered during the foundation works are discussed. Results of static and pseudo-static analyses carried out using the measured high pore pressures are compared with the factors of safety …
Effectiveness Of A Slurry Cutoff Wall At Loeffel Site, G. W. Lee Jr., S. K. Bhatia, G. A. Swenson Iii, S. P. Clemence
Effectiveness Of A Slurry Cutoff Wall At Loeffel Site, G. W. Lee Jr., S. K. Bhatia, G. A. Swenson Iii, S. P. Clemence
International Conference on Case Histories in Geotechnical Engineering
In recent years slurry cutoff walls have been successfully employed to mitigate seepage and isolate liquid waste and leachate in the groundwater environment. However , a success of the slurry cutoff wall depends on the hydrological condition of the site. A post construction and pre-construction groundwater budget analysis can demonstrate the effectiveness of a slurry cutoff wall. In this paper, a detailed groundwater budget analysis of Loeffel site in the Southwestern Rensselaer County of New York is discussed. The analysis shows that the use of a slurry cutoff wall effectively mitigates the release of contaminated groundwater from the site.
Expansive Soil Pavement Design Using Case Studies, G. R. Mckeen, R. L. Lytton
Expansive Soil Pavement Design Using Case Studies, G. R. Mckeen, R. L. Lytton
International Conference on Case Histories in Geotechnical Engineering
A study of the field behavior of airport pavements on expansive soils was made for the purpose of developing design procedures for expansive soil areas. Through theoretical developments, computer simulation and empirical calibration a pavement thickness design procedure was developed. The selection of pavement thickness using the method insures a stiff enough pavement to reduce differential movements to acceptable levels based on calculated aircraft response. Differential movements are calculated using a soil model developed from recent concepts of expansive soil behavior. A soil pavement interaction model was derived for calculating the restraint provided by pavement stiffness.
Failure Of A Salt Aragonite Storage Pad, Yong S. Chae
Failure Of A Salt Aragonite Storage Pad, Yong S. Chae
International Conference on Case Histories in Geotechnical Engineering
A case study of the performance and failure of an aragonite and salt storage pad covering an area of approximately 250 ft. (76 m) square built on marginal subsurface conditions is reported. A detailed analysis of the failure illustrates the importance of thorough exploration of subsurface conditions and field instrumentation to monitor the performance of such storage pads during and after the loading period.
Foundation Movement Monitoring Of Heavy Structures – A Case History, M. R. Lewis, A. Sanver
Foundation Movement Monitoring Of Heavy Structures – A Case History, M. R. Lewis, A. Sanver
International Conference on Case Histories in Geotechnical Engineering
Accurate monitoring of settlement beneath the main structures of a nuclear power plant not only demonstrates the stability of the structures, but also confirms predicted settlements, thereby verifying the geotechnical parameters used in the design. At the Grand Gulf Nuclear Station near Port Gibson, Mississippi, rebound and settlement monitoring has been continuous since the start of site excavation in 1974. As a result, actual settlements have been shown to be close to the predicted levels. This paper discusses the planning, installation and monitoring of the settlement instrumentation and reviews the factors that were important to the choice of instrumentation.
Foundations On Friction Creep Piles In Soft Clays, Sven Hansbo
Foundations On Friction Creep Piles In Soft Clays, Sven Hansbo
International Conference on Case Histories in Geotechnical Engineering
In this lecture, a new principle for design of building foundations on friction piles in soft, cohesive soils is presented. Four case records on buildings designed according to the new principle are analysed in respect of total and differential settlement. In two cases, a comparison has been made with buildings on conventional friction piles. The savings in foundation cost of the buildings designed with creep piles is evaluated in relation to buildings designed with conventional friction piles. The lecture is a synthesis of research and development carried out together with Leif Jendeby, M.Sc., Chalmers University of Technology and Rolf Källström, …
General Report A For Theme Nine – Case Histories In Subsidence Of Soils, Tunnels And Shafts In Soft Ground, Waste Disposal Sites And Pavements, Hal Aldrich
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
General Report B For Theme Nine – Geotechnical History Of Projects Other Than Presented In Sessions 1-8, Charles Mansur
General Report B For Theme Nine – Geotechnical History Of Projects Other Than Presented In Sessions 1-8, Charles Mansur
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Geotechnical Aspects Of The Fort Mchenry Tunnel - Design And Construction, S. K. Sarkar, G. A. Munfakh
Geotechnical Aspects Of The Fort Mchenry Tunnel - Design And Construction, S. K. Sarkar, G. A. Munfakh
International Conference on Case Histories in Geotechnical Engineering
The geotechnical considerations affecting the design and construction of an immersed-tube tunnel are presented. Construction of the tunnel required deep excavations in overconsolidated fissured and slickensided clay deposits. Undrained, long-term residual and fully softened drained strength parameters were determined. The depth of excavation and the life of the cut slope were considered in selecting the design parameters for the slope study analysis. A tied-back soldier pile and lagging system was used for protection of the east end excavation in a congested urban area. Each tie-back was tested according to a simple acceptance criteria developed during construction. Lateral displacements measured behind …
Ground Improvement For Oil Tank Farm In Indonesia, A. F. Abbs, J. M. Cognon, R. W. N. Kelsey
Ground Improvement For Oil Tank Farm In Indonesia, A. F. Abbs, J. M. Cognon, R. W. N. Kelsey
International Conference on Case Histories in Geotechnical Engineering
This case study describes the use of ground improvement to treat a highly variable site, where new oil storage tanks were constructed. Varied techniques were used comprising a combination of dynamic compaction, preload, vertical drains and replacement. Settlement data from the storage tanks during water test shows the treatment to have been successful.
Ground Movement Characteristics Above Mined Panels In Appalachia-An Empirical Approach, M. Karmis, T. Triplett, P. Schillizzi, G. Hasenfus
Ground Movement Characteristics Above Mined Panels In Appalachia-An Empirical Approach, M. Karmis, T. Triplett, P. Schillizzi, G. Hasenfus
International Conference on Case Histories in Geotechnical Engineering
The growing recognition of mining subsidence and its effects has provoked numerous investigations into the modeling and prediction of this phenomenon. Through an analysis of case histories and examination of the various modeling techniques, it has become apparent that empirical studies currently represent the most realistic approach to this problem. However, the collection, analysis and interpretation of subsidence and strain data acquired from case studies presents substantial difficulties, due to varying monitoring techniques and methods of analysis. In this paper it is suggested that a prescribed monitoring program could eliminate these problems and ensure quality data by standardizing the measurement …
Ground Response, Baltimore Lexington Market Tunnels, J. G. Engels, S. J. Calabrese
Ground Response, Baltimore Lexington Market Tunnels, J. G. Engels, S. J. Calabrese
International Conference on Case Histories in Geotechnical Engineering
Soil response data and the results of soil deformation analyses are presented for twin tube rapid transit tunnels constructed in soil. The data collection and analyses were performed during the construction of the Lexington Market Line Tunnels in Baltimore, MD between 1977 and 1980. Sources and volumes of ground loss around the tunnels and the resulting ground surface settlement patterns are discussed. Analyses are presented indicating that substantial volume expansion of the soil over the tunnel occurred during construction. Comparisons are made to similar analyses of data reported in the literature for other tunnels driven in similar geologic conditions.
Highway Interchange Constructed With Slurry Walls, E. Itzig Heine, Frank A. Mcdonough, Surinder Singh
Highway Interchange Constructed With Slurry Walls, E. Itzig Heine, Frank A. Mcdonough, Surinder Singh
International Conference on Case Histories in Geotechnical Engineering
The use of slurry walls to support 40 feet high embankments and bridge structures at Techwood-Spring Connector, part of Williams Street Interchange in Atlanta, is described. Advantages of using slurry walls in lieu of conventional walls are discussed.
Improvement Of A Dumped Rockfill Foundation By Dynamic Consolidation, Adrian Wightman, Nelson F. Beaton
Improvement Of A Dumped Rockfill Foundation By Dynamic Consolidation, Adrian Wightman, Nelson F. Beaton
International Conference on Case Histories in Geotechnical Engineering
The paper describes an Industrial Park development, on the British Columbia coast, where Dynamic Consolidation was chosen to densify a loose rockfill prior to construction of a modern high capacity sawmill on shallow foundations. The design and execution of the compaction are described. The in situ tests used to monitor the compaction are described and results presented. It is concluded that the desired result was achieved, and this is supported by a survey of foundation elevations taken four years after construction.
In Situ Stabilization Of Two Industrial Sites By Dynamic Compaction, John F. O'Brien, Charles P. Gupton
In Situ Stabilization Of Two Industrial Sites By Dynamic Compaction, John F. O'Brien, Charles P. Gupton
International Conference on Case Histories in Geotechnical Engineering
The authors directed selection and control of two large-scale dynamic compaction projects on largely cohesionless soils in Bangladesh and Spain. Both projects included intensive in-situ quality control testing. The findings of the control work is discussed. Based on this work and comparison with published data guidelines for estimating the effectiveness of dynamic compaction are presented.
India's First Venture Relating To Subsurface Drainage By Horizontal Drains, T. K. Natarajan, A. V. S. R. Murty, Deep Chandra
India's First Venture Relating To Subsurface Drainage By Horizontal Drains, T. K. Natarajan, A. V. S. R. Murty, Deep Chandra
International Conference on Case Histories in Geotechnical Engineering
Landslides in the Nilgiris district in 1978-79 1 caused heavy damages to property and human life. The field studies indicated that in certain spots, the build up of excess hydrostatic pressure, caused by direct and indirect ingress of water into the soil mantle, is the main cause for certain landslides in the region. The paper attempts to give the total case history relating to a pioneering venture of its kind towards the correction of landslides undertaken in India. The case history assumes special significance in as much as the horizontal drains successfully installed for the first time in this country, …
Instrumentation Of A Sewer Tunnel In Weak Singapore Soils, K. W. Lo, G. P. Karunaratne, S. L. Lee
Instrumentation Of A Sewer Tunnel In Weak Singapore Soils, K. W. Lo, G. P. Karunaratne, S. L. Lee
International Conference on Case Histories in Geotechnical Engineering
The effects of tunnelling in soft ground consisting mainly of Singapore marine clay were recently monitored to establish ground response characteristics. A sewer tunnel of 2.1 m square section was driven at a depth of 6.3 m in this soil by jacking conventional shield and face supports against installed timber lining. Ground response was monitored by an assortment of field instruments read over several weeks' duration. Peck's proposal (1969) of fitting a normal distribution profile to lateral surface settlement field plots when a heading is well past, and the suggestion by Oshikoshi et al 0978) that similar profiles may be …
Mechanism Of Dynamic Consolidation And Its Environmental Effect, Zhong-Qi Wang, Xiang-Iin Deng
Mechanism Of Dynamic Consolidation And Its Environmental Effect, Zhong-Qi Wang, Xiang-Iin Deng
International Conference on Case Histories in Geotechnical Engineering
This paper is contributed as case histories in ground soil improvement with particular emphasis of dynamic consolidation. The authors try to present as much as they got from the field testings and observations including vibrational parameters, pore pressures, stereoscopic photogrammetry, etc. in order to trace the real behaviour of ground movement during tamping. It is believed that all the data got from the field work are rather informative and illustrative than that from theoretical modelling in the laboratory. Thus, some highlights relating effective thickness of compaction, maximum spacing between compaction points, number of blows for optimum tamping and seismic attenuation …
Movements Around Transit Tunnels In Mixed Ground, L. Edgers, D. E. Thompson, J. S. Mooney, L. W. Young Jr.
Movements Around Transit Tunnels In Mixed Ground, L. Edgers, D. E. Thompson, J. S. Mooney, L. W. Young Jr.
International Conference on Case Histories in Geotechnical Engineering
This paper describes the ground movements measured at a Test Section during construction of twin rapid transit tunnels in Cambridge, Massachusetts. The Test Section was located in an area of rock, soft ground and mixed face tunneling, with the alignment of the twin tunnels approximately 100 feet below ground surface. Overburden soils consist primarily of a very dense, saturated glacial till containing cobbles and boulders, with a weakly metamorphosed, fractured shale bedrock below. Instrumentation at the Test Section was installed in three cross-sections: one with the tunnel headings entirely in rock, a second with the tunnel headings in soft ground, …