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Articles 1801 - 1830 of 2055
Full-Text Articles in Engineering
The Failure Of Oil Storage Tanks And Their Control, Stanislav Dovnarovitch, Yurji Ivanov
The Failure Of Oil Storage Tanks And Their Control, Stanislav Dovnarovitch, Yurji Ivanov
International Conference on Case Histories in Geotechnical Engineering
The paper discusses of some results of flexible footings and their models behaviour in the case of loading-unloading cycles applied to them. The revealed effects have been used to explain the causes of some tanks failures. It has been shown that one of the possible causes is the difference between the displacements of the tank bottom and soil under it following unloading and subsequent loading. A simple technique has been proposed to prevent the failures that can be easily applied when constructing the tanks. The application of the technique both eliminates the causes of the failures and greatly reduces the …
Geotechnical Studies Of Foundation Of A Tilted Tank At Parikshatgarh, India, G. C. Nayak, B. Singh, P. K. Jain
Geotechnical Studies Of Foundation Of A Tilted Tank At Parikshatgarh, India, G. C. Nayak, B. Singh, P. K. Jain
International Conference on Case Histories in Geotechnical Engineering
An overhead tank of 200 KL capacity and 9 m staging was constructed in year 1975 at the ancient historical site at Parikshatgarh, Meerut, India. The depth of foundation is 1.6 m and inner and outer diameters of annular raft is 6.8 m and 10.3 respectively. In year 1978, the overhead tank was observed to be tilted. Detailed geotechnical studies have been conducted in 1987 to find out the causes of tilting of the tank and tilts have been measured every month for last one year. It is interesting to note that in spite of severe tilt of 4.3 cm/meter …
Settlement Predictions In Residual Soils By Dilatometer, Pressuremeter And One-Dimensional Compression Tests: Comparison With Measured Field Response, Roy H. Borden, William J. Sullivan, Weichen Lien
Settlement Predictions In Residual Soils By Dilatometer, Pressuremeter And One-Dimensional Compression Tests: Comparison With Measured Field Response, Roy H. Borden, William J. Sullivan, Weichen Lien
International Conference on Case Histories in Geotechnical Engineering
A case study investigating settlement predictions based on data from one dimensional compression, pressuremeter (PMT) and dilatometer (DMT) tests is presented. A relationship is established between PMT and DMT evaluated moduli and the standard penetration N values. These relationships are utilized in the settlement computations. The predictions obtained by each method are compared to the actual measured settlement. The column location at which settlement observations were made was instrumented with strain gages to measure the actual applied loads. A comparison between actual and design loads is made. Settlement predictions using PMT were performed utilizing two different existing approaches. A distinction …
Settlements In A Masonry Villa Caused By Trees, Filippo Ciuffi
Settlements In A Masonry Villa Caused By Trees, Filippo Ciuffi
International Conference on Case Histories in Geotechnical Engineering
Cracks in the masonry walls of a one storeyed villa due to foundation deformations are investigated in this paper. Particular attention is given to the analysis of the unusual causes of settlement.
Some Case Histories In Urban And Rural Geotechnical Engineering, S. I. Tsien
Some Case Histories In Urban And Rural Geotechnical Engineering, S. I. Tsien
International Conference on Case Histories in Geotechnical Engineering
This paper presents several aspects of engineering performances including satisfactory, unsatisfactory but later remedied, and failure experiences in the fields of building foundation, underground construction, and slope stability problems. These projects were completed in China in the past decade. Five case records of performance are used as illustrative examples. Further research work are finally suggested.
Preface, Shamsher Prakash
Preface, Shamsher Prakash
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Disclaimer, Multiple Authors
Disclaimer, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Conference Snapshots, Multiple Participants
Conference Snapshots, Multiple Participants
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Accelerated Consolidation Of Soft Clays Using Wick Drains, J. R. Davie, M. R. Lewis, L. W. Young Jr.
Accelerated Consolidation Of Soft Clays Using Wick Drains, J. R. Davie, M. R. Lewis, L. W. Young Jr.
International Conference on Case Histories in Geotechnical Engineering
Construction of the New Istana for the Sultan of Brunei required that fill slopes up to 85 feet high be placed on very soft compressible floodplain soils. Wick drains installed in the soft sediments accelerated their consolidation and reduced long-term settlements. The consolidation also produced a strength increase in the soft soils that allowed the fill to be constructed without danger of a major base slip failure. Instrumentation installed in the floodplain soils provided data on excess porepressures built up during the fill placement, and on the resulting settlements. The measured porepressures and settlements were in good agreement with the …
Advances In The Construction And Design Of Jet Grouting Methods In South America, Giorgio Guatteri, Joseph L. Kauschinger, Antonio C. Doria, Edward B. Perry
Advances In The Construction And Design Of Jet Grouting Methods In South America, Giorgio Guatteri, Joseph L. Kauschinger, Antonio C. Doria, Edward B. Perry
International Conference on Case Histories in Geotechnical Engineering
This paper presents a brief historical development of the two most popular jet grouting methods used in South America, namely, the chemical churning pile method (CCP) and jumbo jet grouting. Advantages and limitations of each procedure are cited. A brief discussion follows covering the history of CCP jet grouting in South America. Field trials performed to improve the design methodology and construction of CCP and jumbo jet grouted columns are presented. Finally, three case histories are presented to illustrate the use of jumbo jet grouting where limited head room exists, jet grouting in close proximity to pile supported structures, formation …
Designing Geotextile Support For Submarine Power Cables, K. Y. C. Chung
Designing Geotextile Support For Submarine Power Cables, K. Y. C. Chung
International Conference on Case Histories in Geotechnical Engineering
Six 36 cm diameter submarine pipe-cables were buried in a 1.2 km long, fabric-lined trench in the soft river mud under 17 m average water head across the Hudson River about 4.8 km north of the Newburgh Bridge, New York. This paper describes the design considerations based on geotechnical point of view of using geotextile to support submarine power cables.
Geogrid Reinforced Soil Retaining Wall On Compressible Soils, R. L. Curtis, V. E. Chouery-Curtis, D. A. Miller
Geogrid Reinforced Soil Retaining Wall On Compressible Soils, R. L. Curtis, V. E. Chouery-Curtis, D. A. Miller
International Conference on Case Histories in Geotechnical Engineering
A geogrid reinforced soil wall with a wrap-around facing system was successfully constructed on soft, compressible alluvial and residual soils. An originally designed 20-foot (6.1 m) high, reinforced concrete cantilever retaining wall was not constructed because of the expected settlements induced by the wall and backfill. The geogrid reinforced wall was utilized because of its ability to withstand the estimated settlement and because it was considered less expensive than providing deep foundation support of a cantilever wall. This paper discusses the design, construction, and performance of the geogrid reinforced wall.
Geotechnical Studies Of Foundation Of A Tilted Tank At Parikshatgarh, India, G. C. Nayak, B. Singh, P. K. Jain
Geotechnical Studies Of Foundation Of A Tilted Tank At Parikshatgarh, India, G. C. Nayak, B. Singh, P. K. Jain
International Conference on Case Histories in Geotechnical Engineering
An overhead tank of 200 KL capacity and 9 m staging was constructed in year 1975 at the ancient historical site at Parikshatgarh, Meerut, India. The depth of foundation is 1.6 m and inner and outer diameters of annular raft is 6.8 m and 10.3 respectively. In year 1978, the overhead tank was observed to be tilted. Detailed geotechnical studies have been conducted in 1987 to find out the causes of tilting of the tank and tilts have been measured every month for last one year. It is interesting to note that in spite of severe tilt of 4.3 cm/meter …
Impact Of Tunneling On Two Brick-Bearing-Wall Structures, Marco D. Boscardin
Impact Of Tunneling On Two Brick-Bearing-Wall Structures, Marco D. Boscardin
International Conference on Case Histories in Geotechnical Engineering
The responses or a pair or brick-bearing-wall structures to nearby construction or twin, shield driven 21-ft-diameter tunnels in soil are examined. Horizontal and vertical ground displacements are summarized and discussed, as well as, horizontal and vertical displacements, tilting, distortion, and damage sustained by the structures. Transient features or the developing settlement trough and effects on building response are also examined and discussed.
Long Term Building Performance Over An Injected Subgrade, Ronald F. Reed, Paul Wright
Long Term Building Performance Over An Injected Subgrade, Ronald F. Reed, Paul Wright
International Conference on Case Histories in Geotechnical Engineering
Several foundation designs and stabilization methods are used with varying degrees of success to cope with the problem of expansive clays. Many of these methods are very expensive, therefore alternate technology that is both cost and performance effective has been developed. This paper presents a case history with pre- and post- stabilization test data for a 4-building project where pressure injection of lime and water was used to preswell weathered clay-shale to a depth of 10 feet. Use of pressure injection technology economically reduced post construction movements to 0.5 inches to 1.8 inches over a 7 year monitoring period. Movements …
Recent Examples Of Cut And Fill Reinforcement On A41-Highway In France, Trân Vô Nhiêm
Recent Examples Of Cut And Fill Reinforcement On A41-Highway In France, Trân Vô Nhiêm
International Conference on Case Histories in Geotechnical Engineering
At EVIRES PASS, between ANNECY and MONT BLANC in FRANCE, subsoil is made up of unstable clayey natural versants and marly bedrock affected by previous or current slidings. The problems encountered during the new A41-Highway construction were aggravated by the proximity of Road and Railway located on top of the same versant. The final Design consisted of succession of cuts and embankments with special soil reinforcement techniques to improve stability. So two existing unstable Railway embankments were promptly consolidated by "soil nailing" with driven steel dowel-piles which were either anchored or not. Two other high cuts in marls and sandstones …
Conference Schedule, Multiple Authors
Conference Schedule, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Preface And Contents - Vol. 3, Multiple Authors
Preface And Contents - Vol. 3, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Preface And Contents - Vol. 1, Multiple Authors
Preface And Contents - Vol. 1, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Preface And Contents - Vol. 2, Multiple Authors
Preface And Contents - Vol. 2, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Welcoming Remarks, Shamsher Prakash, John T. Park, Joseph H. Senne
Welcoming Remarks, Shamsher Prakash, John T. Park, Joseph H. Senne
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Welcome Messages, Multiple Authors
Welcome Messages, Multiple Authors
International Conference on Case Histories in Geotechnical Engineering
No abstract provided.
Prediction Of Pore Water Pressure During Earthquakes In Southern Kyoto Area, F. Oka
Prediction Of Pore Water Pressure During Earthquakes In Southern Kyoto Area, F. Oka
International Conference on Case Histories in Geotechnical Engineering
This paper is concerned with the liquefaction analysis for the hypothetical earthquake in southern Kyoto area in Japan. The method of liquefaction analysis can consider the local soil properties of sand and clay, using the constitutive equations of clay and sand, and the theory of mixture. From this study, it becomes evident that liquefaction will occur at the site near the river, and also liquefaction can be observed in the clay layers.
Verification And Evaluation Of The Result Of Liquefiable Soil Treated With Vibroflotation, Bao-He Gu, Zong-Han Hu, Wan-Yu Wang
Verification And Evaluation Of The Result Of Liquefiable Soil Treated With Vibroflotation, Bao-He Gu, Zong-Han Hu, Wan-Yu Wang
International Conference on Case Histories in Geotechnical Engineering
Result of liquefiable soil treated with vibroflotation is recommended in this paper through the treatment of soil of a large power plant. The site lies in macroseismic area, where the bearing capacity of soil in layer B was low and there existed liquefaction potential. Verifications before and after treatment depicted clearly that the result of vibroflotation was excellent. Not only the liquefaction trend of soil was eliminated but also the bearing capacity was enhanced. Various testing methods were introduced and evaluation of liquefaction potential of soft saturated soil before and after treatment were analyzed and discussed in this paper.
A Case History Of Bridge Performance During Earthquakes In Japan, T. Iwasaki
A Case History Of Bridge Performance During Earthquakes In Japan, T. Iwasaki
International Conference on Case Histories in Geotechnical Engineering
This paper describes the results of investigations on seismic damages to highway bridges due to the past major earthquakes occurred in Japan, with emphasis on gen. technical engineering aspects. More than three thousand highway bridges sustained seismic damages for these sixty years since 1923. Among them some thirty bridges completely fell down, including nine bridges failed due to the effects of fires. For some typical bridge damages, results of detailed analyses are also given in order to clarify the causes of the> damages. From the review of comprehensive studies on actual bridge damages, this paper makes several conclusions regarding seismic …
A Case History Of Chemical Attack Of A Clay Shale, G. H. Glos, D. Hinkle
A Case History Of Chemical Attack Of A Clay Shale, G. H. Glos, D. Hinkle
International Conference on Case Histories in Geotechnical Engineering
This paper describes the results of an extensive investigation made to determine the cause of excessive settlements of two 800 MN steam turbine units located at the Four Corners Steam Electric Station near Farmington, New Mexico. The units are located on a clay-shale formation with numerous gypsum seams. The settlement was originally attributed to the solutioning of these gypsum seams. It was found that the construction of a large unlined cooling pond raised the ground water table in the vicinity of the power plant. In this saturated environment, a chemical attack of the existing clay shales began. It is believed …
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 …
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, …
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, …