An Experimental Study Of The Behavior Of Drilled Shaft Foundations In Clay Under Static And Repeated Lateral And Moment Loading

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An Experimental Study Of The Behavior Of Drilled Shaft Foundations In Clay Under Static And Repeated Lateral And Moment Loading

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Author : Paul Wesley Mayne
language : en
Publisher:
Release Date : 1991

An Experimental Study Of The Behavior Of Drilled Shaft Foundations In Clay Under Static And Repeated Lateral And Moment Loading written by Paul Wesley Mayne and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

An Experimental Study Of The Behavior Of Drilled Shaft Foundations Subjected To Static And Repeated Lateral And Moment Loading Under Drained Conditions

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Author : Sherif W. Agaiby
language : en
Publisher:
Release Date : 1991

An Experimental Study Of The Behavior Of Drilled Shaft Foundations Subjected To Static And Repeated Lateral And Moment Loading Under Drained Conditions written by Sherif W. Agaiby and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

Experimental Study Of Undrained Lateral And Moment Behavior Of Drilled Shafts During Static And Cyclic Loading

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Author : P. W. Mayne
language : en
Publisher:
Release Date : 1992

Experimental Study Of Undrained Lateral And Moment Behavior Of Drilled Shafts During Static And Cyclic Loading written by P. W. Mayne and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Electric lines categories.

An Experimental Study Of The Undrained Behavior Of Drilled Shaft Foundations Subjected To Static And Cyclic Inclined Loading

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Author : Fred H. Kulhawy
language : en
Publisher:
Release Date : 1995

An Experimental Study Of The Undrained Behavior Of Drilled Shaft Foundations Subjected To Static And Cyclic Inclined Loading written by Fred H. Kulhawy and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Electric lines categories.

The Behavior Of A Low Plasticity Silty Clay Under Conditions Of Static And Cyclic Direct Simple Shear

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Author : Mary Ellen Caves
language : en
Publisher:
Release Date : 1991

The Behavior Of A Low Plasticity Silty Clay Under Conditions Of Static And Cyclic Direct Simple Shear written by Mary Ellen Caves and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with categories.

Case History Evaluation Of The Behavior Of Drilled Shafts Under Axial And Laterial Loading

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Author : Yit-Jin Chen
language : en
Publisher:
Release Date : 1993

Case History Evaluation Of The Behavior Of Drilled Shafts Under Axial And Laterial Loading written by Yit-Jin Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.

Design Of Short Drilled Shaft Foundations In High Plasticity Clay Under Inclined Loading

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Author : Thornchaya Wejrungsikul
language : en
Publisher:
Release Date : 2011

Design Of Short Drilled Shaft Foundations In High Plasticity Clay Under Inclined Loading written by Thornchaya Wejrungsikul and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Bridges categories.

Drilled shaft foundations are primarily used to support structures such as bridge piers, towers, buildings, transmission towers, and roadway median cable barriers. Generally, the main characteristics of drilled shafts are to transfer the loads to the stronger subsoil layers in the vertical direction and also their ability to withstand lateral movements from lateral loads applied. Though the design of shafts is well established with respect to combinations of loads and moments, their behavior under pullout type inclined loading is not well established. The inclined load applied is the combination of lateral and uplift loads applied at the same time and structures such as ends of cable barriers and transmission towers that are supported by the drilled shafts. This dissertation research mainly focuses on the use of drilled shafts supporting at the ends of the cable median barrier systems. These shafts play an important role in protecting the integrity of the cables thereby reducing cross-over collisions at highway medians. Several foundation problems were recorded in north Texas when drilled shafts were used to connect all the cables of the cable barrier systems. During December 2006 to February 2007, several foundation failures of three cable median barrier were observed in Kaufman County near Dallas without any traffic related vehicular impacts (Heady, 2008). Preliminary investigation of foundation failures showed that failed drilled shafts were located in a high plasticity clay environment. Causes of failures are attributed to cold temperature induced shrinkage in the cables that might have significantly increased the tensions in them. Other factors consist of soil saturation from prolonged rainfall events and also potential use of smaller size drilled shafts at the site. In order to fully understand the causes of failures, the present dissertation research was performed. As a part of this research, various sizes of drilled shafts were designed and constructed in a clayey soil environment similar to the one where foundation distress was observed. Geotechnical sampling and laboratory testing were performed and the test results showed different soil layers including high plasticity clayey soil near the ground surface. Soil strength properties for both unsaturated (field condition) and saturated conditions were determined and these results are used in the analysis of field test results to deduce the causes of foundation distress. A new load test setup for the application of an inclined tensile loading on the drilled shaft was designed to simulate the natural field loading condition exerted by the cables. The capacities of different sizes of drilled shafts from field test were tested and measured with this setup and these results showed that the dimensions of reaction test piers and spacings used between reaction and test piers have yielded results that are not influenced by the boundary effects or reaction shaft movements. All load tests were conducted until the foundations reached failure. Test results were analyzed with both uplift capacity and lateral capacity analyses models proposed by many researchers as well as Finite Element Method (FEM) based numerical modeling in understanding the behaviors of drilled shafts under the inclined loading. After obtaining good simulation results, the analytical models are further used for various hypothetical foundation dimensions and for different undrained shear strengths of soils. These test results are used to develop foundation design charts for inclined loading conditions. Both the selection of a specific design chart and its use are explained. Additionally, drilled shaft construction guidelines for cable barrier systems and recommendation for periodic maintenance are provided.

Experimental Study Of The Undrained Uplift Behavior Of Model Drilled Shaft Foundations

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Author : John Frederick Beech
language : en
Publisher:
Release Date : 1986

Experimental Study Of The Undrained Uplift Behavior Of Model Drilled Shaft Foundations written by John Frederick Beech and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Shafts (Excavations) categories.

Dissertation Abstracts International

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Author :
language : en
Publisher:
Release Date : 1991

Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Dissertations, Academic categories.

Journal Of Geotechnical Engineering

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Author :
language : en
Publisher:
Release Date : 1995

Journal Of Geotechnical Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Geotechnical engineering categories.