Open Access. Powered by Scholars. Published by Universities.®
Articles 61 - 90 of 110
Full-Text Articles in Engineering
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.
Geotechnical Problems Encountered During The Excavation Of Underground Cavities For Varahi Hydro Electric Project, H. V. Eswaraiah, V. S. Upadhyaya, B. N. Vishwanath
Geotechnical Problems Encountered During The Excavation Of Underground Cavities For Varahi Hydro Electric Project, H. V. Eswaraiah, V. S. Upadhyaya, B. N. Vishwanath
International Conference on Case Histories in Geotechnical Engineering
Varahi river in Karnataka State, India originates on the Western Ghats and is harnessed for power generation by constructing three dams. The water is conveyed through two inclined pressure shaft to the underground power house below the Ghats. The underground power house of the Varahi Hydro Electric Project executed by the Karnataka Power Corporation has 2 units of 135 MW each in the first stage with a provision to add two more identical units. Three underground cavities are excavated parallel to one another for housing the rotary valves, generators and the transformers respectively and are at a gee-static head of …
Table Of Contents - Vol. I, Multiple Authors
Table Of Contents - Vol. I, 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.
Conference Schedule, Multiple Participants
Conference Schedule, Multiple Participants
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Stabilization Of A Tailings Dam By De-Watering, A. B. Fourie, G. I. Mcphail
Stabilization Of A Tailings Dam By De-Watering, A. B. Fourie, G. I. Mcphail
International Conference on Case Histories in Geotechnical Engineering
The failure of the outer slope of one of the paddocks of a tailings dam, resulted in a significant decrease in the area available for tailings deposition. Overloading of the remaining five paddocks resulted. To maintain the stability of the existing dam whilst construction of new disposal facilities was in progress, three techniques were investigated; horizontal, push-in drains at the dam toe, a rock buttress around the operational paddocks, and vertical de-watering wells installed on the first terrace, or ‘step-back’ of the dam. De-watering wells proved most effective, and 165 wells were installed. A monitoring programme included regular determination of …
Geomechanical Studies For A Himalayan Tunnel In Jointed Dolomites: A Case History, G. S. Saini, A. K. Dube
Geomechanical Studies For A Himalayan Tunnel In Jointed Dolomites: A Case History, G. S. Saini, A. K. Dube
International Conference on Case Histories in Geotechnical Engineering
Reported case history of Himalayan tunnel reveals that Barton's and Bieniawski's classification systems provide better assessment of the rock mass behavior. The design and shear strength parameters derived from these classifications provided a preliminary design of the tunnel, which has been critically evaluated with the design, adopted at site. Based on the structural feature and ground water conditions, a number of tunnelling conditions have been predicted. The studies indicated the loosening rock pressures would be occuring at site with an estimated range of 0. 25 kg/cm2 to 3. 58 kg/cm2. Problems of roof collapse, flowing ground condition …
The Impact Of Rising Ground Water Level On The Geotechnical Behavior Of Soil In Hot Climate Regions, A. S. Stipho
The Impact Of Rising Ground Water Level On The Geotechnical Behavior Of Soil In Hot Climate Regions, A. S. Stipho
International Conference on Case Histories in Geotechnical Engineering
The continuous development and industrial changes in Saudi Arabia necessitates large ground water exploitation and brought about significant changes to the ground water regime. The alarming evidence of rising shallow ground water level and the widespread structural problems have mitigate the extra demand to develop special geotechnical awareness, standard testing and designing procedures to minimize the impact of wetting on soil behavior in the hot climate region. Field and laboratory test results on typical soil samples have established the influence of rising moisture and exemplified the adverse levels of collapse manifested by the large reduction in shearing strength and the …
General Report Session No. 14: Geotechnical Aspects Of Recent Earthquakes, Ahmed-W. Elgamal, G. L. Hempen
General Report Session No. 14: Geotechnical Aspects Of Recent Earthquakes, Ahmed-W. Elgamal, G. L. Hempen
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Third International Conference On Case Histories In Geotechnical Engineering, Multiple Authors
Third International Conference On Case Histories In Geotechnical Engineering, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
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.
Table Of Contents, Multiple Authors
Table Of Contents, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Effects Of Collapse Settlement Of Fill On Reinforced Earth Walls, G. E. Blight
Effects Of Collapse Settlement Of Fill On Reinforced Earth Walls, G. E. Blight
International Conference on Case Histories in Geotechnical Engineering
Two case histories illustrate the effects that collapse settlement of the fill forming a Reinforced Earth wall can have on the structure. Pre-requisites for collapse settlement are inadequate compaction, compaction at too low a water content, or a combination of these. Collapse settlement occurs subsequently when the water content of the fill is increased by infiltration. The effects of collapse settlement identified in this paper are: (i) a temporary release of friction on the reinforcing strips with the result that the wall facing moves outwards; and (ii) relative settlement between the fill and the wall facing with the result that …
Organizing Committee, Multiple Members
Organizing Committee, Multiple Members
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.
Foundation Failures Associated With Salt Rock And Surrounding Coastal Plain, A. Orhan Erol, Abdulmohsin W. Dhowian
Foundation Failures Associated With Salt Rock And Surrounding Coastal Plain, A. Orhan Erol, Abdulmohsin W. Dhowian
International Conference on Case Histories in Geotechnical Engineering
A detailed investigation has been conducted to study the causes of severe and widespread damages in a town situated on a salt dome. The study includes a thorough assessment of ground conditions in the coastal plain surrounding the salt dome for possible utilization of the plain as redevelopment areas. Major geological features in the study area comprised of collapsible windblown sands which are underlain by salt rock in the old town and soft/loose sabkha deposits in the proposed redevelopment zones. It has been found that the extensive damages in the buildings and roads are primarily due to subsidence phenomenon associated …
Geotechnical Investigation Into Causes Of Failure Of A Gabion Retaining Wall, Edward A. Nowatzki, Brian P. Wrench
Geotechnical Investigation Into Causes Of Failure Of A Gabion Retaining Wall, Edward A. Nowatzki, Brian P. Wrench
International Conference on Case Histories in Geotechnical Engineering
This paper describes the post-failure analysis of a 26m long x 4m high gabion retaining wall located in a suburb of Johannesburg, South Africa. The wall had been built just beyond the toe of a natural slope with most of the gabion units resting on the bed of a small river. The river bed soils consisted of approximately 2.5 m of soft, dark-grey, silty clay underlain by massive granite bedrock. The water table at the toe of the wall was within 0.1 m of the river bed surface. Failure of the wall occurred over the weekend after backfilling to grade …
The Influence Of Thin Clay Layers On The Design And Performance Of A Flexible Cantilever Retaining Wall, R. Cameron, C. A. Carr
The Influence Of Thin Clay Layers On The Design And Performance Of A Flexible Cantilever Retaining Wall, R. Cameron, C. A. Carr
International Conference on Case Histories in Geotechnical Engineering
This case study presents the methods that were used successfully to redesign and monitor the performance of a flexible cantilever retaining wall, incorporating an in situ support berm, at a site where thin, weak clay layers were detected in the foundation during construction. A potential mode of failure termed "berm-block sliding", where the retaining wall pushes out the entire support berm as a block along the clay layers, governed the design analysis. Evidence of presheared planes within the clay layers required that the design shear strength parameters be based on residual values. The clay had a significant cohesion component which …
Construction Of Road Embankments Over Very Soft Soil Using Band Drains And Preloading, John D. Nelson, Brian P. Wrench
Construction Of Road Embankments Over Very Soft Soil Using Band Drains And Preloading, John D. Nelson, Brian P. Wrench
International Conference on Case Histories in Geotechnical Engineering
As part of a new national road being constructed in South Africa an embankment was built over a deep deposit of very soft soil. To enhance stability the embankment was built in several stages and in order to reduce the time required for consolidation between stages, band drains were installed in the foundation soils. The soils were instrumented to monitor pore water pressure and settlement. The results of the monitoring phase showed that the band drains were effective and operated as designed. This paper presents the results of the monitoring and discusses the prediction of degree of consolidation from settlement …
Correlation Between The Actual And Predicted Settlements Of Structures At Nsukka, Nigeria, H. O. Chukweze
Correlation Between The Actual And Predicted Settlements Of Structures At Nsukka, Nigeria, H. O. Chukweze
International Conference on Case Histories in Geotechnical Engineering
The paper compares the measured and calculated settlements of two buildings and one concrete water tank founded on the red-weathered soils of Nsukka, Nigeria. Prior to actual construction of the structures the three sites were investigated, soil samples were collected and tested in the laboratory and the data collected were used to predict the total and differential settlements of the structures. Then permanent concrete slabs were established as bases at each of the three sites for observing other points. The theodolite was used at each of the sites to monitor the movements of each of the structures, starting from the …
Preface, Shamsher Prakash
Preface, Shamsher Prakash
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.
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.
Geotechnical Characterization Of Subsoil Deposits At Cairo, Mohamed A. El-Sohby, S. Ossama Mazen
Geotechnical Characterization Of Subsoil Deposits At Cairo, Mohamed A. El-Sohby, S. Ossama Mazen
International Conference on Case Histories in Geotechnical Engineering
As a result of considering the historical aspects in Cairo subsoil at different stages of its development, soil deposits in the alluvial plain in Cairo area could be identified and classified on their origin into limited number of major types. Their distribution could be produced on maps on which classes of engineering significance are recognized. The boundaries between map units have been drawn separating areas of equal origin and characteristics. Verification of soil profile from field investigation indicated complete agreement with the previous characterization based on theoretical considerations.
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.
A Proposed Procedure For The Identification Of Dispersive Soils, H. J. Von M. Harmse, F. A. Gerber
A Proposed Procedure For The Identification Of Dispersive Soils, H. J. Von M. Harmse, F. A. Gerber
International Conference on Case Histories in Geotechnical Engineering
The piping failure of the Senekal dam and many other small dams in South Africa, despite the use of apparently sound material and good control during construction, emphasizes the need for a method to unambiguously identify dispersive soils. Physical and chemical tests of one hundred and seventy soil samples were evaluated against the double hydrometer method, after removal of free salts. The chemical methods based on characterization of the exchange complex (CEC and ESP) gave consistently more reliable results than the physical tests, such as the pinhole, crumb and sticky point tests and even the double hydrometer test when free …
Failure Of Railway Embankment, J. Christodoulias, H. Giannaros
Failure Of Railway Embankment, J. Christodoulias, H. Giannaros
International Conference on Case Histories in Geotechnical Engineering
This article deals with the failure of a railway embankment in North Peloponese. The geotechnical investigation that followed aimed to specify the causes of the failure. The results of the above investigation are presented, an evaluation of the causes of failure is discussed and the remedial measures which 'have been taken are thoroughly described.
Field Observation And Finite Element Analysis Of A Subway Excavation, Roberto Azevedo, Luis Anibal Santos
Field Observation And Finite Element Analysis Of A Subway Excavation, Roberto Azevedo, Luis Anibal Santos
International Conference on Case Histories in Geotechnical Engineering
This paper analyzes a braced excavation executed during the construction of Rio de Janeiro City subway along a street (Catete Street) in which several old and historical buildings existed and should be preserved. The excavation had an average depth of 13 meters and was executed almost ten years ago in a subsoil in which the principal problems were caused by a 6 meters thick loose sand layer, underlaid by a 4 meter thick silty organic clay layer. Several buildings were damaged and had to be repaired. The objective of this paper is to show that even using the incomplete laboratory …
First International Conference On Case Histories In Geotechnical Engineering, Multiple Authors
First International Conference On Case Histories In Geotechnical Engineering, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.