Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 30 of 251
Full-Text Articles in Engineering
Past Proceedings: Second International Conference On Case Histories In Geotechnical Engineering, St. Louis (1988), Multiple Authors
Past Proceedings: Second International Conference On Case Histories In Geotechnical Engineering, St. Louis (1988), Multiple Authors
International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
No abstract provided.
Second International Conference On Case Histories In Geotechnical Engineering, Multiple Authors
Second International Conference On Case Histories In Geotechnical Engineering, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Organizing Committee, Multiple Members
Organizing Committee, Multiple Members
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
List Of Conference Participants, Multiple Participants
List Of Conference Participants, Multiple Participants
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Author's Index, Multiple Authors
Author's Index, Multiple Authors
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.
Program Of The Conference, Multiple Participants
Program Of The Conference, Multiple Participants
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. Iii, Multiple Authors
Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984): Vol. Iii, 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. Ii, Multiple Authors
Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering (1984): Vol. Ii, 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 …
A Study Of Contamination Migration At A Hazardous Waste Facility In Louisiana, George H. Cramer Ii
A Study Of Contamination Migration At A Hazardous Waste Facility In Louisiana, George H. Cramer Ii
International Conference on Case Histories in Geotechnical Engineering
Traditionally clay soils have been regarded as being relatively impermeable to the migration of water and contaminants. Recent studies in Louisiana are beginning to show, however, that laboratory permeability tests are not true indicators of the ability of an in-situ soil to retain or transmit fluids. Both the depositional and post-depositional environment of a soil can greatly alter its in-situ permeability. In particular, post-depositional structural fractures provide preferential pathways for contaminant migration at rates that far exceed those predicted by using laboratory permeability values. Difficulties in field identification of these pathways reduces modeling of their effect on site hydrology to …
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 …
Design And Construction Of A Soil Bentonite Slurry Wall Around An Operating Facility Superfund Site, A. S. Burgess, G. S. Laird, M. S. Leonard
Design And Construction Of A Soil Bentonite Slurry Wall Around An Operating Facility Superfund Site, A. S. Burgess, G. S. Laird, M. S. Leonard
International Conference on Case Histories in Geotechnical Engineering
A soil bentonite slurry wall was designed for an NPL site to stop further migration of chemicals in a complex aquifer system, and to facilitate the removal of possible chemical sources from saturated zones beneath the site. Pumping from within the slurry wall will maintain inward and upward hydraulic gradients and thus stop further lateral or vertical migration of chemicals from the contained area. The slurry wall was constructed under an exceptionally detailed Quality Assurance; Quality Control review by the Contractor and two independent consulting firms. Ground movements, vibration levels and opacity of dust produced during construction were monitored for …
Failure And Reconstruction Of A Waste Containment Pond Slope, Dorairaja Raghu, Robert J. Van Orden
Failure And Reconstruction Of A Waste Containment Pond Slope, Dorairaja Raghu, Robert J. Van Orden
International Conference on Case Histories in Geotechnical Engineering
A portion of a slope of a subsurface waste containment cell failed. It is believed that this failure could be attributed to a sudden drawdown condition caused by the pumping of treated wastewater effluent stored inside the cell prior to construction of the permanent liner. This conclusion seems to be in agreement with the results of a stability analysis conducted utilizing post-failure slope profile data. A discussion of the analysis of the failure and the reconstruction of the slope is presented in this paper.
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.
Evaluation Of Remedial In-Waste Leachate Head Reduction, Denise E. Mills, Donald A. Cordell
Evaluation Of Remedial In-Waste Leachate Head Reduction, Denise E. Mills, Donald A. Cordell
International Conference on Case Histories in Geotechnical Engineering
Water quality monitoring at Cedar Hil.ls Regional Landfill, in King County, Washington has indicated that shallow ground water perched in lodgement till has been impacted by solid waste disposal. A leachate mound to 50 feet in thickness was identified in the refuse which overlies the low permeability till. The leachate head over the till is sufficient to cause downward flow of leachate through the till to shallow ground water, and may contribute to water quality impacts at the site. Lowering the leachate head, therefore, may reduce the potential for impacts on water quality. A study was conducted to obtain estimates …
Geotechnical And Groundwater Site Characterization On The Umtra Project, J. A. Caldwell, R. A. Rager, L. Coons
Geotechnical And Groundwater Site Characterization On The Umtra Project, J. A. Caldwell, R. A. Rager, L. Coons
International Conference on Case Histories in Geotechnical Engineering
Reclamation of 24 inactive uranium mill tailngs piles involves remedial work to stabilize the piles for 1000 years. Site characterization of geotechnical and groundwater conditions at each site is undertaken prior to remedial action design. This paper describes the approach to UMTRA Project site characterization. A case history, Green River, is described. Details of site characterization costs for most sites are provided.
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 …
Site Of An Oil Producing Property, H. Dezfulian
Site Of An Oil Producing Property, H. Dezfulian
International Conference on Case Histories in Geotechnical Engineering
An assessment of a 6.78-acre parcel of oil-producing land with one active, seven idle, and two abandoned oil wells was performed. Following the collection and review of site data, an evaluation was made of the toxic properties of on-site soils for the presence of hazardous substances. Soil samples were collected by advancing boreholes at eight locations. These locations were selected on the bas is of the results of an aerial photographs review, a geophysical survey, and statistical sampling design techniques. An analytical program was conducted to test for chemicals that would likely be present from the oil field operations. It …
Use Of Deeply Weathered Rock As Landfill Cover Material, Patacon Landfill, Republic Of Panama, W. C. B. Gates
Use Of Deeply Weathered Rock As Landfill Cover Material, Patacon Landfill, Republic Of Panama, W. C. B. Gates
International Conference on Case Histories in Geotechnical Engineering
Under normal conditions weathered rock provides poor landfill cover because of its permeable nature. However, a recent hydrogeological investigation conducted by the US Army Environmental Hygiene Agency (AEHA) of the Patacon Landfill in the Republic of Panama revealed the contrary. The operators were using weathered rock from the surrounding saprolitic outcrops of the Panama formation and Tertiary andesite intrusions for landfill cover. The AEHA selected samples of the weathered rock from the borrow sites for engineering tests at their soils engineering lab at Aberdeen Proving Ground, Maryland. The following are test results. Water induces the weathered rock to slake very …
A Case History Of Tehri Tunnels, B. Prabhakar, J. L. Jethwa, B. Singh
A Case History Of Tehri Tunnels, B. Prabhakar, J. L. Jethwa, B. Singh
International Conference on Case Histories in Geotechnical Engineering
Tehri Dam Project, a multipurpose river valley project, is being constructed in Garhwal, Himalaya. The project consists of a 260 m high earth and rock fill dam with a clay core, four diversion tunnels each of 11 m finish diameter, four head race tunnels each of 8.5 m finish diameter and two underground powerhouses cavities each measuring 180 m long, 49.5 m high and 21.5 m wide. The project is located near the district headquarters of Tehri in the state of Uttar Pradesh. The rock masses in the project area are fragile, tectonically active and geologically disturbed. The terrain is …
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.