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Author : Thomas Jay Weaver
Publisher :
ISBN 13 :
Total Pages : 506 pages
Book Rating : 4.:/5 (318 download)
Download or read book Behavior of Liquefying Sand and CISS Piles During Full-scale Lateral Load Tests written by Thomas Jay Weaver and published by . This book was released on 2001 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Scott A. Ashford
Publisher :
ISBN 13 :
Total Pages : 568 pages
Book Rating : 4.:/5 (318 download)
Download or read book TILT written by Scott A. Ashford and published by . This book was released on 1999 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents the results of the Treasure Island Liquefaction Test (TILT), a joint project carried out by the University of California, San Diego, and Brigham Young University. To improve our understanding of the lateral load behavior of deep foundations in liquefied soil, a series of full-scale lateral load tests were performed at the National Geotechnical Experimentation Site (NGES) at Treasure Island in San Francisco, California. The ultimate goal of the TILT project was to develop lateral load-displacement relationships for a variety of individual piles and pile groups in liquefied sand under full-scale conditions. The tests were carried out using a high-speed hydraulic loading system after the sand surrounding the piles was liquefied using blasting techniques. This report presents backcalculated p-y curves for single pipe piles, pile groups, and cast-in-steel shell piles before and during liquefaction, as well as through dissipation of excess pore water pressures. In addition, recommendations with regard to design of deep foundations in liquefied soil are presented.
Author : Scott A. Ashford
Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (318 download)
Download or read book Full-scale Behavior of Laterally Loaded Deep Foundations in Liquefied Sand written by Scott A. Ashford and published by . This book was released on 2000 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Steven Lawrence Kramer
Publisher :
ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (1 download)
Download or read book Behavior of Piles in Full-scale, Field Lateral Loading Tests written by Steven Lawrence Kramer and published by . This book was released on 1991 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Clark Stephen Morrison
Publisher :
ISBN 13 :
Total Pages : 600 pages
Book Rating : 4.:/5 (165 download)
Download or read book A lateral load test of a full-scale pile group in sand written by Clark Stephen Morrison and published by . This book was released on 1986 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Allan T. MacDougall
Publisher :
ISBN 13 :
Total Pages : 236 pages
Book Rating : 4.:/5 (563 download)
Download or read book Full-scale Cyclic Lateral Load Testing of a Four Pile Group in Liquefied Sand written by Allan T. MacDougall and published by . This book was released on 2004 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. L. Gill
Publisher :
ISBN 13 :
Total Pages : 66 pages
Book Rating : 4.:/5 (359 download)
Download or read book Soil Behavior Around Laterally Loaded Piles written by H. L. Gill and published by . This book was released on 1968 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field tests were performed to study the horizontal load-displacement characteristics of natural soil deposits and to associate these characteristics with the behavior of laterally loaded piles. The ultimate objective of the tests was to acquire information essential for the design of laterally loaded soil-supported structures. Three soil conditions were considered: (1) bay mud with a desiccated crust in its natural dry state, (2) bay mud submerged within the area of testing, and (3) a hydraulic fill of granular material classified as SP by the unified soil classification system. Segmental pile tests were performed with three sizes of laterally loaded segments and at various depths below ground surface in the bay mud. (Similar tests in the hydraulic fill were covered in a previous NCEL report.) Lateral load tests on full-scale piles from 4 to 16 inches in diameter were performed at each test site. Theoretical information, available soil data, and results of the segmental pile tests were compared and combined to establish representative lateral load-displacement relationships for the soil at any depth at the three sites by using rectangular hyperbolas. Theoretical predictions of the response of laterally loaded piles were made using these relationships, and the results were compared with data obtained during the lateral load tests on piles. Experimental data and theoretical predictions compared favorably. (Author).
Author : Robert Lewis Little
Publisher :
ISBN 13 :
Total Pages : 175 pages
Book Rating : 4.:/5 (185 download)
Download or read book Full Scale Cyclic Lateral Load Tests on Six Single Piles in Sand written by Robert Lewis Little and published by . This book was released on 1988 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was performed to determine responses of single piles in sands subjected to cyclic lateral loading and compare the results with predicted responses based on insitu pressuremeter tests. The pressuremeter method used for predicting pile response to monotonic lateral loading is applicable to piles which will experience little or no degradation in flexural stiffness such as steel piles and prestressed concrete piles loaded less than the prestress. Keywords: Cohesionless soils, Cyclic lateral loading, Pressuremeter, Single piles. (jes).
Author : Ross W. Boulanger
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (318 download)
Download or read book Pile Foundations in Liquefied and Laterally Spreading Ground During Earthquakes written by Ross W. Boulanger and published by . This book was released on 2003 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James Matthew Walsh
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (631 download)
Download or read book Full-scale Lateral Load Test of a 3x5 Pile Group in Sand written by James Matthew Walsh and published by . This book was released on 2005 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The load resisted by the single pile was greater than the average load resisted by each pile in the pile group. While the loads resisted by the first row of piles (i.e. the only row deflected away from all other rows of piles) were approximately equal to that resisted by the single pile, following rows resisted increasingly less load up through the fourth row. The fifth row consistently resisted more than the fourth row. The pile group in sand resisted much higher loads than did the pile group in clay.
Author : Artak Davit Mirzoyan
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (367 download)
Download or read book Lateral Resistance of Piles at the Crest of Slopes in Sand written by Artak Davit Mirzoyan and published by . This book was released on 2007 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pile foundations near the crest of a slope are often required to resist lateral loads. This is particularly important for piles at the abutments of bridges. However, limited full-scale test data are available to indicate how the lateral resistance of a pile would be affected when it is located near the crest of a slope. To investigate the effect of a slope on lateral pile resistance, three full scale lateral load tests were conducted on an instrumented steel pipe pile. For the first test, the pile was laterally loaded in horizontal ground. For the second test the pile was at the crest of a 30 degree slope and in the third test the pile was placed three diameters behind the crest of the 30 degree slope. The soil around the pile consisted of clean sand compacted to about 95% of the modified Proctor maximum unit weight for all three tests. Laboratory and in-situ direct shear tests indicated that the friction angle of the sand was approximately 39 degrees. The pile was instrumented with strain gages at approximately 1.5 ft intervals along its length so that the bending moment versus depth profile could be determined. Pile head load, deflection, and rotation were also measured. Based on the results, the presence of the slope decreased the ultimate lateral resistance of the pile-soil system by approximately 25% and 10% for tests two and three, respectively. The presence of the slope also resulted in an increase in the maximum bending moment of approximately 40% and 30% for tests two and three, respectively. Analyses using LPILE matched the lateral resistance for the pile in horizontal ground, but significantly overestimated the decrease in resistance due to the sloping ground. A mathematical model was developed to predict the ultimate strength of a pile located some distance from the crest of a cohesionless sloping profile. Parametric test results using the model were within 2.6 % of the measured results of tests two and three.
Author : Teerawut Juirnarongrit
Publisher :
ISBN 13 :
Total Pages : 818 pages
Book Rating : 4.:/5 (318 download)
Download or read book Effect of Diameter on the Behavior of Laterally Loaded Piles in Weakly Cemented Sand written by Teerawut Juirnarongrit and published by . This book was released on 2002 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fengju Guo
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)
Download or read book Lateral Response of Single Piles in Cemented Sand and Weak Rock written by Fengju Guo and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Competent deposits of cemented sands distribute extensively along the coastline areas of Western Australia and many other coastline areas worldwide. These soils do not conveniently fall into any specific soil types of sand or clay and there are not yet generally accepted procedures for the design and analysis of piled foundations where lateral loads are comprised predominantly in these soils. In-situ cone penetration test (CPT) provides continuous profile data of the soils in question. Utilizing the cone data for design parameters for the lateral piled foundations has increasingly attracted interests.This thesis investigates the lateral response of single piles in cemented sand and weak rock. The geotechnical behavior of the soils across a wide range from very weakly-cemented sands to well-cemented sands has been studied through a series of laboratory testing programs and in-situ testing programs. Full-scale lateral load experiments were performed with fully instrumented drilled and grout piles in a weak calcareous sandstone deposit at Pinjar, North West Perth in Western Australia. Centrifuge-scale load tests were also carried out on model piles preinstalled in very weakly-cemented sands artificially prepared with varying cement contents. The results of the field test were used to develop the load transfer P-y relationships as well as the limiting transverse pressures Pu on piles for the well-cemented soils. The results of centrifuge model test in conjunction with finite element modelling were used to develop the lateral pressure-displacement P-y relationships and the limiting transverse pressures Pu for the very weakly-cemented soils. The field and centrifuge tests were modelled well using a hyperbolic P-y relationship and the obtained ultimate lateral resistance. Existing methods to estimate Pu and the formulations of P-y curves were also evaluated and conclusive comments made to the comparisons.The thesis then explores the potential of using CPT qc data directly for the design and analysis of laterally loaded piles. A simple CPT-based bi-linear p-y approximation for the lateral response is proposed. This formulation is shown to provide good predictions for lateral pile response in a variety of cemented deposits.
Author : Luke Ian Kevan
Publisher :
ISBN 13 :
Total Pages : 157 pages
Book Rating : 4.:/5 (12 download)
Download or read book Full-scale Testing of Blast-induced Liquefaction Downdrag on Driven Piles in Sand written by Luke Ian Kevan and published by . This book was released on 2017 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deep foundations such as driven piles are often used to bypass liquefiable layers of soil and bear on more competent strata. When liquefaction occurs, the skin friction around the deep foundation goes to zero in the liquefiable layer. As the pore pressures dissipate, the soil settles. As the soil settles, negative skin friction develops owing to the downward movement of the soil surrounding the pile. To investigate the magnitude of the skin friction along the shaft three driven piles, an H-pile, a closed end pipe pile, and a concrete square pile, were instrumented and used to measure soil induced load at a site near Turrell, Arkansas following blast-induced liquefaction. Measurements were made of the load in the pile, the settlement of the ground and the settlement of piles in each case. Estimates of side friction and end-bearing resistance were obtained from Pile Driving Analyzer (PDA) measurements during driving and embedded O-cell type testing.
Author : Dustin Shaun Christensen
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (7 download)
Download or read book Full Scale Static Lateral Load Test of a 9 Pile Group in Sand written by Dustin Shaun Christensen and published by . This book was released on 2006 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The test on the single pile was modeled using the computer program LPILE Plus version 4.0 (Reese et al., 2000). The soil profile was calibrated by alternating the input soil parameters until the curves matched between the measured and the calculated results. The new soil profile was then used to model the test on the pile group using GROUP version 4.0 (Reese and Wang, 1996). A match was made between the measured test results and those calculated using GROUP by defining p-multipliers for each of the rows. For Cycle 1 the p-multipliers were found to be 1.0, .55, and .5 for Row 1 through Row 3 respectively. For Cycle 10 the p-multipliers were found to be the same as those for Cycle 1.
Author :
Publisher :
ISBN 13 :
Total Pages : 398 pages
Book Rating : 4.:/5 (359 download)
Download or read book Lateral Load Tests on Full-scale Pile Groups in Cohesive Soils written by and published by . This book was released on 1973 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald Y. S. Pak
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.3/5 (91 download)
Download or read book Soil Dynamics and Liquefaction 2000 written by Ronald Y. S. Pak and published by . This book was released on 2000 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: GSP 107 contains 13 papers on soil dynamics and liquefaction presented at sessions of Geo-Denver 2000, held in Denver, Colorado, August 5-8, 2000.
