Behavior of Liquefying Sand and CISS Piles During Full-scale Lateral Load Tests PDF Download
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Author: Thomas Jay Weaver
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
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Book Description
Author: Thomas Jay Weaver
Publisher:
ISBN:
Category :
Languages : en
Pages : 506
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Book Description
Author: Scott A. Ashford
Publisher:
ISBN:
Category : Piling (Civil engineering)
Languages : en
Pages : 568
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Book Description
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:
Category : Materials
Languages : en
Pages : 286
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Book Description
Author: Steven Lawrence Kramer
Publisher:
ISBN:
Category : Concrete piling
Languages : en
Pages : 96
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Book Description
Author: Clark Stephen Morrison
Publisher:
ISBN:
Category : Piling (Civil engineering)
Languages : en
Pages : 600
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Book Description
Author: Allan T. MacDougall
Publisher:
ISBN:
Category : Lateral loads
Languages : en
Pages : 236
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Book Description
Author: H. L. Gill
Publisher:
ISBN:
Category :
Languages : en
Pages : 66
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Book Description
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: Ross W. Boulanger
Publisher:
ISBN:
Category : Earthquake engineering
Languages : en
Pages : 210
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Book Description
Author: Robert Lewis Little
Publisher:
ISBN:
Category : Piling (Civil engineering)
Languages : en
Pages : 175
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Book Description
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: James Matthew Walsh
Publisher:
ISBN:
Category : CD-ROMs
Languages : en
Pages : 166
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Book Description
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.
