Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 30 of 251
Full-Text Articles in Geotechnical Engineering
List Of Conference Participants, Multiple Participants
List Of Conference Participants, Multiple Participants
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Concluding And Banquet Remarks And Speech, Multiple Authors
Concluding And Banquet Remarks And Speech, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Welcome And Opening Remarks, Multiple Authors
Welcome And Opening Remarks, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984): Vol. Iv, Multiple Authors
Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984): Vol. Iv, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984): Vol. I, Multiple Authors
Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984): Vol. I, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
A Low Rise Hospital Development On Restored Opencast Fill, W. M. Kilkenny
A Low Rise Hospital Development On Restored Opencast Fill, W. M. Kilkenny
International Conference on Case Histories in Geotechnical Engineering
An extensive low-rise hospital development has taken place since 1982 on a former opencast coal mining site 30 years after working and restoration. The clay and shale fill some 20 metres deep was placed without systematic compaction. Five separate site investigations have been carried out at different times during the last 20 years and a detailed engineering geological mapping exercise was completed in 1977. Drainage works and the main buildings in Scheme 1 and 2 have been monitored during and after construction. Significant settlements have occurred requiring some remedial work. A surcharge and inundation trial has been undertaken prior to …
A Modified Field Infiltrometer Test For Clay Liners, G. S. Laird, W. B. Lozier, A. M. Gurevich
A Modified Field Infiltrometer Test For Clay Liners, G. S. Laird, W. B. Lozier, A. M. Gurevich
International Conference on Case Histories in Geotechnical Engineering
Regulatory agencies are looking more frequently to in situ field hydraulic conductivity tests for the assessment of a liner's compliance to a specified hydraulic conductivity. Most field tests have evaluated hydraulic conductivity by measuring the infiltration rate of the liner. The infiltration rate can be used to arrive at a hydraulic conductivity value if the hydraulic boundary conditions of the test can be identified or if the head loss at different depths can be measured. A test fill of a clay liner was evaluated for its saturated vertical hydraulic conductivity. This paper discusses the use of eight tensiometers to measure …
Complementing Radiologic Data With Geology – A Case History, Dennis Mcgrane
Complementing Radiologic Data With Geology – A Case History, Dennis Mcgrane
International Conference on Case Histories in Geotechnical Engineering
The goal in characterizing radioactively contaminated soil is to quantify the degree of contamination and its parameters. A cost effective, small scale characterization is done by performing a surface radiological survey with subsurface data coming from boreholes augered in a tight grid pattern. Confidence in the between-hole extrapolations depends on the grid size. However, at the widely contaminated site in Maywood, New Jersey a grid width of 100 feet was the only economical choice. Accurate contamination parameters were determined despite the wide hole spacings once geologists and health physicists learned how local geologic conditions controlled the contamination's location and extent. …
Control Of Uplift From Ground Water, R. V. Sarsby
Control Of Uplift From Ground Water, R. V. Sarsby
International Conference on Case Histories in Geotechnical Engineering
This paper relates to the conversion of a disused water reservoir into a landfill site for domestic and industrial refuse. The reservoir was initially subdivided into four cells (by using earth bunds) and three of the cells have been successfully prepared and filled. The fourth cell is the largest and presents the greatest number of geotechnical problems, the major one being the problem of ensuring that leachate does not escape into the groundwater. The first owner of the site removed natural clay from various parts of the reservoir base to seal the first three cells. In doing so he exposed …
Disposal Of Phenolic Waters From A Producer Gas Plant, Dorairaja Raghu, Hsin-Neng Hsieh
Disposal Of Phenolic Waters From A Producer Gas Plant, Dorairaja Raghu, Hsin-Neng Hsieh
International Conference on Case Histories in Geotechnical Engineering
Phenolic waters are generated in a producer gas plant in India. Since harmful environmental effects can result even with low concentrations of phenol in water, its disposal poses a problem. Four options for disposal were considered. One of these options considered involves disposal in a earthen pond situated close to a river. In order to avoid river pollution by possible seepage of phenolic waste, geotechnical aspects have to be considered. For each option, cost analysis is performed. This paper d1scusses as to how the final disposal technique is decided taking into account all the relevant aspects of the problem.
Hazardous Waste Disposal Site Hydrogeologic Characterization, S. M. Testa
Hazardous Waste Disposal Site Hydrogeologic Characterization, S. M. Testa
International Conference on Case Histories in Geotechnical Engineering
A major hazardous waste disposal facility near Arlington, Oregon serving the Pacific Northwest, Canada, and Alaska maintains numerous favorable environmental characteristics for siting of a hazardous waste disposal facility. The risk of contamination as a result of potential leakage from a waste management unit via primary pathways to surface water, groundwater or by direct contact and/or ingestion is thus reasonably low. However, these same characteristics which make the site most suitable for hazardous waste disposal often conflict with: 1) the demonstration of the groundwater monitoring system's ability to adequately perform immediate leak detection monitoring as mandated under the Resource Conservation …
Implementation Of Remedial Measures To Contain A Pcb Spill, M. D. Huag, J. Atwater, R. B. Knight, P. Kozicki, A. Lissey
Implementation Of Remedial Measures To Contain A Pcb Spill, M. D. Huag, J. Atwater, R. B. Knight, P. Kozicki, A. Lissey
International Conference on Case Histories in Geotechnical Engineering
A large spill of Polychlorinated Biphenols (PCB's) occurred at Federal Pioneer Limited's Regina Plant in 1976. The City of Regina is underlain by a relatively shallow aquifer which supplies a significant proportion of its drinking water. A remedial measures plan was developed to contain this spill within the boundaries of the site and clean up any contamination which had spread to adjacent property. The remedial measures plan developed involved limiting or reversing the normal downward hydraulic gradient. The three principle measures introduced to accomplish this reversal included the construction of a cutoff wall around the site, installation of a thick …
Performance Of Lightweight Waste-Impoundment Dikes, Peter J. Bosscher, Tuncer B. Edil
Performance Of Lightweight Waste-Impoundment Dikes, Peter J. Bosscher, Tuncer B. Edil
International Conference on Case Histories in Geotechnical Engineering
The containment dikes of two sludge disposal lagoons were founded on low strength, highly compressible wetland soils in Madison, Wisconsin. These lagoons, constructed in 1942 and 1967 respectively, encompass 130 acres of digested sludge produced at the sewage treatment plant. The dikes have experienced two previous failures in 1970 and 1973. A dike rehabilitation program was initiated in 1976 to prevent additional failures. New dikes were built using wood chips as a lightweight fill. Non-woven synthetic filter fabric was used to prevent soil intrusion into the chips and to provide resistance to lateral spreading. An investigation was initiated in 1984 …
A Geological Appraisal Of Slope Instability And Proposed Remedial Measures At Kaliasaur Slide On National Highway, Garwal Himalaya, G. S. Mehrotra, R. K. Bhandari
A Geological Appraisal Of Slope Instability And Proposed Remedial Measures At Kaliasaur Slide On National Highway, Garwal Himalaya, G. S. Mehrotra, R. K. Bhandari
International Conference on Case Histories in Geotechnical Engineering
For over six decades Kaliasaur landslide (Lat. 30° 14' 30" N, Long. 78° 55' 50" E) is a nightmare on the Hardwar-Badrinath road in the Garhwal Himalaya. Located on a sharp bend on the left bank of river Alaknanda, it has emerged as a multi-tier repetitive major landslide, retrogressive in nature. Both surficial and deep seated movements have been monitored. The sliding in the upper layers have been predominantly in the colluvium but where interfaces of quartzite and shale participates, the sliding surfaces have been better defined and discrete. In the present paper, the authors have highlighted the geological, geomorphological …
A Novel Low Cost Drum Diaphragm Wall For Landslide Control In The Himalaya, R. K. Bhandari
A Novel Low Cost Drum Diaphragm Wall For Landslide Control In The Himalaya, R. K. Bhandari
International Conference on Case Histories in Geotechnical Engineering
Construction of masonry and reinforced cement concrete .retaining walls are common as a measure of landslide control in the Himalayan region. They are usually very expensive and call for import of cement, steel, stones, sand and water from long distances. The paper spotlights a novel technology of constructing anchored drum diaphragm retaining walls which make use of slope waste material itself for wall construction, saving to the tune of 40 per cent in cost. Utilization of slope debris in turn minimizes hazards due to debris flow, rockfalls, etc. and other mass movements.
Case Study – Ground Failures And Ruptures In Xian City, Zhong-Qi Wang, Rong-Xiang Zhang
Case Study – Ground Failures And Ruptures In Xian City, Zhong-Qi Wang, Rong-Xiang Zhang
International Conference on Case Histories in Geotechnical Engineering
Xian city, the most well known ancient city of China for her incredible Terra Cotta Warriers and so forth, has been suffered from ground fracture for years. Surface ruptures and "faultings" encountered in strips all over the city. Hundreds of buildings were severely destroyed and many of them even have been demolished. Ground failures wide-spread and enlarged from time to time, especially right from Tangshan earthquake of July 28, 1976. Therefore serious concerns and suspicious of being associated with major earthquakes have arosed. Thus it has been a problem of both engineering and social influence. Like many other cities in …
Construction Of Hydel Power House In Weak Rocks, K. K. Kapoor, S. C. Patodiya
Construction Of Hydel Power House In Weak Rocks, K. K. Kapoor, S. C. Patodiya
International Conference on Case Histories in Geotechnical Engineering
Geological uncertainties have always played an important role in planning of a hydel power house. This paper presents case study of a power house which was subjected to major revisions in its planning due to inherent instabilities in rock slopes. Initially the power house was planned with service bay and other facilities on its left hand side, but the weak and instable slopes and sliding of large rock masses necessitated its thorough revision by bringing service bay and other facilities to its right hand side along with addition of many new features and flattening of slopes. There were many alternatives …
Effects Of Geology And Geotechnical Properties Of Rocks For The Selection Of Type Of Dams, Baqir Hasan
Effects Of Geology And Geotechnical Properties Of Rocks For The Selection Of Type Of Dams, Baqir Hasan
International Conference on Case Histories in Geotechnical Engineering
The topography, geology, foundation conditions and geotechnical properties of the rock units play a dominant role in the selection of type of a dam. It is usually difficult to determine initially, what particular type of dam is technically feasible and economically viable, for a particular dam site. In selecting the most suitable type of dam, a thorough consideration is given to the characteristic of each type of dam. Before the final selection of the type of dam, detailed evaluation is made of location, topography, geology, foundation condition, geological structure, seismicity, depth of the overburden in the valley section, geotechnical properties …
Engineering Design Of Rock Slope Reinforcement Based On Non-Linear Joint Strength Model, Stavros C. Bandis
Engineering Design Of Rock Slope Reinforcement Based On Non-Linear Joint Strength Model, Stavros C. Bandis
International Conference on Case Histories in Geotechnical Engineering
Optimum dimensioning of bolts or anchors for the reinforcement of slopes in jointed rock masses, requires compatible strength-deformation data, for both the rock joints and the reinforcing elements. Most types of rock joints behave in non- linear fashion and, thus, realistic modelling can have serious implications in the design, both from the economical and the technical standpoints. This paper will present, briefly, the principles of a constitutive model of joint shear behaviour and a method for optimum bolt or anchor design. The implications of non-linear joint behaviour will be demonstrated with numerical examples. Finally, a case study of slope stabilization, …
Evaluation Of The Site Investigation And Construction Related Aspects Of The Milwaukee's Crosstown Deep Tunnel, R. C. Ilsley, S. B. Fradkin, E. F. Shorey
Evaluation Of The Site Investigation And Construction Related Aspects Of The Milwaukee's Crosstown Deep Tunnel, R. C. Ilsley, S. B. Fradkin, E. F. Shorey
International Conference on Case Histories in Geotechnical Engineering
The excavation of the 21,300 foot long, 32.33 foot diameter Crosstown Phase I Tunnel was completed by tunnel boring machine at an average rate of 108 feet per 3 shift day. No geologic conditions were encountered which were sufficiently adverse to impede the work. The geotechnical report combined with contract provisions prevented the unusual conditions encountered from becoming issues that delayed the work. It is probable that the monetary aspects related to these unusual conditions can be equitably resolved using the geotechnical data “base line” portrayed in the geotechnical report.
Foundation Investigation And Treatment For The Main Dam, Italpu Project, John G. Cabrera
Foundation Investigation And Treatment For The Main Dam, Italpu Project, John G. Cabrera
International Conference on Case Histories in Geotechnical Engineering
After selection of the site for this major hydroelectric project on the Upper Parana River, initial borings in the river bed revealed an extremely fractured zone near the base of the dense basalt flow on which the main dam would be founded. This zone was later seen to correspond to intersecting faults beneath the river bed, therefore upon dewatering the river channel several exploratory tunnels were driven parallel and perpendicular to the dam axis, foreseeing their incorporation into an elaborate "shear key" system to prevent renewed movements of the shear zones. The tunnel grid was backfilled with concrete through holes …
Geo-Engineering Problems In The Spillway Foundations And Their Treatment At Guhai Reservoir Project In Gujurat, India, D. M. Pancholi, K. E. Modhwadia, P. H. Vaidya
Geo-Engineering Problems In The Spillway Foundations And Their Treatment At Guhai Reservoir Project In Gujurat, India, D. M. Pancholi, K. E. Modhwadia, P. H. Vaidya
International Conference on Case Histories in Geotechnical Engineering
During the initial stage of construction of a 23 m high composite dam across the Guhai river, the downstream dipping sedimentary rock sequence of conglomerate, sandstone and shale resting unconformably over quartzite and schist was encountered as a surprise during the excavation of the foundation. Besides, an 8 to 8.5 m wide major fault zone along with three minor faults running across the dam axis were also noticed. Extensive subsurface investigations to study the nature and characteristics of sedimentary rocks, fault zones, etc. met with in the foundations were undertaken concurrently with the construction activity. As a result, the construction …
Ground Failure Investigation Over Abandoned Coal Mines: A Case Study, Marlo G. Karfakis, Bruce A. Suprenant
Ground Failure Investigation Over Abandoned Coal Mines: A Case Study, Marlo G. Karfakis, Bruce A. Suprenant
International Conference on Case Histories in Geotechnical Engineering
The slurry backfill operation for the Rock Springs subsidence control project is briefly described. The extent of ground failure and building damage is presented. The scope of the ensuing geotechnical investigation to indicate any possible cause and effect relationship between the pumped slurry backfill operation and observed damage is described. The general and specific findings regarding the damaged area are discussed. Conclusions from the investigation are presented.
Grouting A Water Tower Foundation In A Carbonate Formation, Dorairaja Raghu, David Antes, Joseph J. Lifrieri
Grouting A Water Tower Foundation In A Carbonate Formation, Dorairaja Raghu, David Antes, Joseph J. Lifrieri
International Conference on Case Histories in Geotechnical Engineering
Grouting the cavities in cavernous carbonate formations is one of the techniques employed to achieve reliable bearing support for structures founded in and on such rock units. For this purpose, conventional exploration methods, such as test borings and geophysical measurements, can be employed to obtain the necessary subsurface data; but, they are usually limited in extent, expensive, time consuming, and can be misleading. These limitations can be overcome by employing percussion probing techniques. A case history is cited wherein percussion probing was successfully employed.
Lithotectonic Landslides And Hazards In Parts Of Garhwal-Kumaon Himalayas, R. S. Mithal
Lithotectonic Landslides And Hazards In Parts Of Garhwal-Kumaon Himalayas, R. S. Mithal
International Conference on Case Histories in Geotechnical Engineering
Landslides produce an awesome picture of the hill sides with steep scarred, hollowed and gullied geomorphic features devoid of vegetation particularly between the major thrust zones. A look on the tectono-stratigraphic map of the region with marked major tectonic features like the Main Central Thrust (MCT), North Almora Thrust (NAT) and South Almora Thrust (SAT) indicates that the region is highly prone to landslides and is affected by repeated tectonic and orogenic processes. These factors with the nature of the rocks, climate and the heavy monsoon rains are responsible for sculpturing the region. The mountain features and the valley slopes …
Prevision Of The Bearing Capacity Of Superficial Foundation On Jointed Rock, Marangos Christos
Prevision Of The Bearing Capacity Of Superficial Foundation On Jointed Rock, Marangos Christos
International Conference on Case Histories in Geotechnical Engineering
The article describes the application, in Greece, of an approximate resolution of the prevision of the superficial foundation bearing capacity of a school building group on jointed granite. The method is based on the mechanics of the discontinuous media. On a sufficient number of a canvas points which is situated on the critical section under the foundation, the developing shear stresses are defined, based on the elastic theory, and they are compared with the variable -into the various directions- shear strength of the jointed rock. The resulted data conduct to the setting of boundaries of plastic zones which allow the …
Simultaneous Velocity Measurements With Uniaxial Loading On Weak Sandstone From Iraq, Zuhair Rammo Fattohi
Simultaneous Velocity Measurements With Uniaxial Loading On Weak Sandstone From Iraq, Zuhair Rammo Fattohi
International Conference on Case Histories in Geotechnical Engineering
Transit pulse wave times through a weakly cemented sandstone rock being measured on prismatic specimens with and without initial plane of weakness, which is uniaxially loaded at different stages. The velocity, Elastic moduli bulk compressibility, and vertical strain were calculated for each loading level. Results have shown, that such rock properties have changed dramatically. Thus they should be considered thoroughly for any engineering evaluation in such rock type.
Slope Stability Evaluation For An Existing Steep Cut In Weathered Volcanics, Hong Kong, J. K. P. Kwong, L. J. Endicott, A. C. Lumsden
Slope Stability Evaluation For An Existing Steep Cut In Weathered Volcanics, Hong Kong, J. K. P. Kwong, L. J. Endicott, A. C. Lumsden
International Conference on Case Histories in Geotechnical Engineering
This case study concerns an investigation of a major existing soil slope. It is a 60m (197 ft) high cutting slope, at 40 degrees to 60 degrees to the horizontal, exhibiting a considerably greater degree of stability than was obtained by a series of geotechnical investigations and analyses. The common practice of correlation between widely spaced borings is shown to be inappropriate at this site because of the highly variable ground conditions. Rather, the comprehensive geological comprehensive engineering investigation carried out has enabled a detailed appreciation of the distribution and nature of weathered materials at the site. Transitional materials with …
Study Of Some Debris Avalanches In Garwal Himalaya, India, H. C. Nainwal, Y. P. Sundriyal, C. Prasad
Study Of Some Debris Avalanches In Garwal Himalaya, India, H. C. Nainwal, Y. P. Sundriyal, C. Prasad
International Conference on Case Histories in Geotechnical Engineering
This study was carried out in the Alaknanda - Dhauliganga catchment area, located in the north and northeast of Joshimath in the Garfiwal Himalaya. The snow fields, cirques and the related glaciers are located above the altitude approximate 4000 meters, while the river valley have a mean altitude of around 2000 meters. The strategic roads viz. Joshimath-Badrinath and Joshimath-Nitipass pass through this area with a number of villages along with their cultivated land are located along the roads. These roads are often blocked on huge debris avalanches not only damage the road, but also the cultivated land and forests. The …
Subsidence Movements And Structural Damage Related To An Abandoned Coal Mine, Y. P. Chugh, K. Chandrashekhar, R. J. Missavage
Subsidence Movements And Structural Damage Related To An Abandoned Coal Mine, Y. P. Chugh, K. Chandrashekhar, R. J. Missavage
International Conference on Case Histories in Geotechnical Engineering
An area in southwestern Illinois has been experiencing surface and subsurface movements with associated damage to surface structures. The area is underlain by an abandoned, partially extracted room-and-pillar underground coal mine. Instrumentation included TDR (Time Domain Reflectometry), Inclinometers, Sondex, Tiltplates, and precision land surveys. This paper presents the results of a 16-month cooperative study between the Department of Mining Engineering at SIUC and a local coal company.