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Geotechnical Engineering

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Articles 4111 - 4140 of 4581

Full-Text Articles in Engineering

Ground Response To Sheet Pile Installation In Clay, Richard J. Finno, Dimitrios K. Atmatzidis, Steven M. Nerby Jun 1988

Ground Response To Sheet Pile Installation In Clay, Richard J. Finno, Dimitrios K. Atmatzidis, Steven M. Nerby

International Conference on Case Histories in Geotechnical Engineering

The effects of sheet pile installation on an adjacent cohesive soil mass are described herein. Observations indicate that driving sheet pile caused pore pressures to double at some locations. These pore pressures extended further than reported in previous studies concerning driven piles. Initially pore pressures rapidly dropped, but dissipation slowed after this initial adjustment. Inclinometer and extensometer data indicate that the clay was laterally displaced up and away from the sheeting causing the ground surface to heave. The impact of this behavior on subsequent stress changes during excavation is discussed.

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Partial Underpinning A Five-Storey Building, Phung Duc Long, Nguyen Van Quang, Bo Berggren Jun 1988

Partial Underpinning A Five-Storey Building, Phung Duc Long, Nguyen Van Quang, Bo Berggren

International Conference on Case Histories in Geotechnical Engineering

Partial underpinning is often not accepted because of dangerous damage that may be caused by the redistribution of stresses in the superstructure. A five-storey building was partially underpinned successfully. To give stability to the building only a small number of piles, about 70% fewer than with the conventional method, were used. The results observed have proved the success of the partial underpinning.

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Performance Evaluation Of Pile Foundation Using Cpt Data, Keith D. Tucker Jun 1988

Performance Evaluation Of Pile Foundation Using Cpt Data, Keith D. Tucker

International Conference on Case Histories in Geotechnical Engineering

The Southern California Edison Company (SCE) has utilized cone penetrometer test (CPT) data for design of concrete drilled shafts and driven piles at various facilities over the past seven years with substantial cost savings in field exploration and foundation design. This paper incorporates a performance evaluation of drilled shafts and driven piles to predict the uplift load versus deflection curves based on the embedded length to diameter ratio of each foundation. A revised design methodology is presented to correlate the side friction values from CPT data with field uplift load test results in granular and cohesive soils.

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Performance Of Foundations And Retaining Structures, Daniel P. Gado, George P. Kelley, John J. Mcelroy Jun 1988

Performance Of Foundations And Retaining Structures, Daniel P. Gado, George P. Kelley, John J. Mcelroy

International Conference on Case Histories in Geotechnical Engineering

The design, construction, and performance of several building foundations and temporary earth retaining structures located in the downtown area of White Plains, New York are presented in this paper. High rise structures were supported on shallow mat or spread foundations bearing on erratic saturated alluvial silt and sand deposits. Additionally, the construction of two and three level underground parking structures required the use of cantilevered and braced excavation support systems to retain the adjacent streets and utilities. Several assumptions were required to design and predict the performance of the building foundations and retaining structures. The accuracy of these assumptions was …

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Post-Tensioned Caissons Permit Interstate Construction: A Case History, A. Joseph Nicholson Jr., John R. Wolosick Jun 1988

Post-Tensioned Caissons Permit Interstate Construction: A Case History, A. Joseph Nicholson Jr., John R. Wolosick

International Conference on Case Histories in Geotechnical Engineering

Due to severe right of way restrictions associated with the relocation and widening of Interstate 85 in Atlanta Georgia, a special post-tensioned caisson retaining wall was constructed within 12 inches of an adjacent parking garage and office building. National Foundation Company's design for the twenty foot high retaining structure was used in lieu of an L-shaped cantilevered concrete retaining wall that required extensive temporary shoring for construction. The caisson wall was instrumented and monitored during and after construction using slope indicators and optical survey.

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Predicting Performance Of Large-Diameter Buried Flexible Pipes: Learning From Case Histories, Koon Meng Chua, Larry J. Petroff Jun 1988

Predicting Performance Of Large-Diameter Buried Flexible Pipes: Learning From Case Histories, Koon Meng Chua, Larry J. Petroff

International Conference on Case Histories in Geotechnical Engineering

Analytical approaches to predicting pipe deflections are based on the predetermined pipe properties, the anticipated soil properties and on the assumption that the specified installation configuration can be met. However, in-place pipe deflections do often deviate from the predicted. This paper summarizes the observations made from more than twenty case histories of entrenched large-diameter flexible high density polyethylene pipes and discusses the effects of construction methods and site conditions on pipe performance. Procedures are also presented on how site conditions and construction methods can be accounted for when using the TAMPIPE (Texas A&M PIPE) method and the Spangler's method. Procedures …

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Reconstruction Of The Settlement History Of Building, G. Hannink Jun 1988

Reconstruction Of The Settlement History Of Building, G. Hannink

International Conference on Case Histories in Geotechnical Engineering

Although it is a well-known fact that buildings can settle, it is often not known how much settlement has occurred since the construction. Three case studies in the Netherlands are presented which deal with the following questions: has the settlement process stopped or is it continuing and if so, what settlements can still be expected in the future? All three cases show large settlements of up to a maximum of 0.8 m since construction. This paper shows how the magnitude of the settlement since the construction can be reconstructed by analysing settlement data, covering only a relatively short period of …

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The Failure Of Oil Storage Tanks And Their Control, Stanislav Dovnarovitch, Yurji Ivanov Jun 1988

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 …

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Geotechnical Studies Of Foundation Of A Tilted Tank At Parikshatgarh, India, G. C. Nayak, B. Singh, P. K. Jain Jun 1988

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 …

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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 Jun 1988

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 …

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Settlements In A Masonry Villa Caused By Trees, Filippo Ciuffi Jun 1988

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.

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Some Case Histories In Urban And Rural Geotechnical Engineering, S. I. Tsien Jun 1988

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.

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Preface, Shamsher Prakash Jun 1988

Preface, Shamsher Prakash

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Disclaimer, Multiple Authors Jun 1988

Disclaimer, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Conference Snapshots, Multiple Participants Jun 1988

Conference Snapshots, Multiple Participants

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Accelerated Consolidation Of Soft Clays Using Wick Drains, J. R. Davie, M. R. Lewis, L. W. Young Jr. Jun 1988

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 …

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Advances In The Construction And Design Of Jet Grouting Methods In South America, Giorgio Guatteri, Joseph L. Kauschinger, Antonio C. Doria, Edward B. Perry Jun 1988

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 …

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Designing Geotextile Support For Submarine Power Cables, K. Y. C. Chung Jun 1988

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.

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Geogrid Reinforced Soil Retaining Wall On Compressible Soils, R. L. Curtis, V. E. Chouery-Curtis, D. A. Miller Jun 1988

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.

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Geotechnical Studies Of Foundation Of A Tilted Tank At Parikshatgarh, India, G. C. Nayak, B. Singh, P. K. Jain Jun 1988

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 …

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Impact Of Tunneling On Two Brick-Bearing-Wall Structures, Marco D. Boscardin Jun 1988

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.

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Long Term Building Performance Over An Injected Subgrade, Ronald F. Reed, Paul Wright Jun 1988

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 …

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Recent Examples Of Cut And Fill Reinforcement On A41-Highway In France, Trân Vô Nhiêm Jun 1988

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 …

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Conference Schedule, Multiple Authors May 1984

Conference Schedule, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Preface And Contents - Vol. 3, Multiple Authors May 1984

Preface And Contents - Vol. 3, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Preface And Contents - Vol. 1, Multiple Authors May 1984

Preface And Contents - Vol. 1, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Preface And Contents - Vol. 2, Multiple Authors May 1984

Preface And Contents - Vol. 2, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Welcoming Remarks, Shamsher Prakash, John T. Park, Joseph H. Senne May 1984

Welcoming Remarks, Shamsher Prakash, John T. Park, Joseph H. Senne

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Welcome Messages, Multiple Authors May 1984

Welcome Messages, Multiple Authors

International Conference on Case Histories in Geotechnical Engineering

No abstract provided.

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Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering, St. Louis (1984), Multiple Authors May 1984

Past Proceedings: First International Conference On Case Histories In Geotechnical Engineering, St. Louis (1984), Multiple Authors

International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics

No abstract provided.

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