Statmanic Lateral Load Testing and Analysis of a Drilled Shaft in Liquefied Sand PDF Download
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Author: Seth I. Bowles
Publisher:
ISBN:
Category : CD-ROMs
Languages : en
Pages : 199
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Book Description
Three progressively larger statnamic lateral load tests were performed on a 2.59 m diameter drilled shaft foundation after the surrounding soil was liquefied using down-hole explosive charges. An attempt to develop p-y curves from strain data along the pile was made. Due to low quality and lack of strain data, p-y curves along the test shaft could not be reliably determined. Therefore, the statnamic load tests were analyzed using a ten degree-of-freedom model of the pile-soil system to determine the equivalent static load-deflection curve for each test. The equivalent static load-deflection curves had shapes very similar to that obtained from static load tests performed previously at the site. The computed damping ratio was 30%, which is within the range of values derived from the log decrement method.
Author: Seth I. Bowles
Publisher:
ISBN:
Category : CD-ROMs
Languages : en
Pages : 199
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Book Description
Three progressively larger statnamic lateral load tests were performed on a 2.59 m diameter drilled shaft foundation after the surrounding soil was liquefied using down-hole explosive charges. An attempt to develop p-y curves from strain data along the pile was made. Due to low quality and lack of strain data, p-y curves along the test shaft could not be reliably determined. Therefore, the statnamic load tests were analyzed using a ten degree-of-freedom model of the pile-soil system to determine the equivalent static load-deflection curve for each test. The equivalent static load-deflection curves had shapes very similar to that obtained from static load tests performed previously at the site. The computed damping ratio was 30%, which is within the range of values derived from the log decrement method.
Author: Lymon C. Reese
Publisher:
ISBN:
Category : Shafts (Excavations)
Languages : en
Pages : 244
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Book Description
Drilled shafts have been used on a limited scale for many years as an alternative to driven piles in a variety of foundation problems. However, uncertainty about the behavior of the drilled shaft has forestalled widespread adoption. The subject package, by Dr. Lymon C. Reese of the University of Texas, is intended for use by bridge engineers, geotechnical engineers, and builders of pile foundations. The manual contains rational procedures and practical guidelines for the design and construction of drilled shaft foundations. Volume I presents a rational design procedure for drilled shafts under axial loading and includes guidelines on construction methods, inspection, load testing, specifications, and cost estimates. Volume II presents alternative methods for computing the response of the shaft to lateral loading and presents the structural design of the shaft for axial and/or lateral loading.
Author: JH. Long
Publisher:
ISBN:
Category : Cyclic loading
Languages : en
Pages : 15
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Book Description
A lateral-load test was conducted at an offshore site on two 1.22-m-diameter drilled shafts penetrating through 13.1 m of dense sand overlying clay. The lateral-load test was conducted by pulling the two shafts toward each other under a specified lateral load and then relaxing the load to zero. This procedure was repeated for 40 cycles at each load level. With each load increase the application sequence was repeated to a maximum lateral load of 500 kN. Throughout the test, measurements were made of deflection and slope at the top of the shaft, and measurements of slope along the length of the shaft were obtained using a slope inclinometer.
![Analysis of Laterally Loaded Long Or Intermediate Drilled Shafts of Small Or Large Diameter in Layered Soils [i.e. Soil] PDF](https://books.google.com/books/content/images/frontcover/i45NAQAAMAAJ?fife=w80-h100)
Author: Mohamed A. Ashour
Publisher:
ISBN:
Category : Lateral loads
Languages : en
Pages : 226
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Book Description
This study has extended the capability of the SW model in order to predict the response of laterally loaded large diameter shafts considering 1) the influence of shaft type on the lateral shaft response; 2) the nonlinear behavior of shaft material and its effect on the soil-shaft interaction; 3) developing liquefaction in the surrounding soil profile based on far and near-field induced water pressure; and 4) vertical side shear resistance along the shaft wall that has a significant contribution to the lateral shaft response
Author: Amy Jean Taylor
Publisher:
ISBN:
Category : Electronic dissertations
Languages : en
Pages : 232
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Book Description
For the drilled shaft load tests, pile head deflection and applied load were measured by string potentiometers and load cells, respectively. Tilt was also measured as a function of depth with an inclinometer which was then used to calculate deflection and bending moment as a function of depth. For the pipe pile, deflection and applied load were also measured; however, bending moment was computed based on strain gauges readings along the length of the pile.
Author: Anwar Hirany
Publisher:
ISBN:
Category : Axial loads
Languages : en
Pages : 72
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Book Description
Author: Stevan D. Vidić
Publisher:
ISBN:
Category : Electric lines
Languages : en
Pages : 246
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Book Description
Author: Lymon C. Reese
Publisher:
ISBN:
Category : Bridges
Languages : en
Pages : 246
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Book Description
Author: Lymon C. Reese
Publisher:
ISBN:
Category : Shafts (Excavations)
Languages : en
Pages : 152
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Book Description
Drilled shafts have been used on a limited scale for many years as an alternative to driven piles in a variety of foundation problems. However, uncertainty about the behavior of the drilled shaft has forestalled widespread adoption. The subject package, by Dr. Lymon C. Reese of the University of Texas, is intended for use by bridge engineers, geotechnical engineers, and builders of pile foundations. The manual contains rational procedures and practical guidelines for the design and construction of drilled shaft foundations. Volume I presents a rational design procedure for drilled shafts under axial loading and includes guidelines on construction methods, inspection, load testing, specifications, and cost estimates. Volume II presents alternative methods for computing the response of the shaft to lateral loading and presents the structural design of the shaft for axial and/or lateral loading.
Author: Vernon R. Kasch
Publisher:
ISBN:
Category : Clay
Languages : en
Pages : 116
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Book Description
