Analysis of Laterally Loaded Piles in Multilayered Soil Deposits PDF Download
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Author: Dipanjan Basu Publisher: Purdue University Press ISBN: 9781622601264 Category : Transportation Languages : en Pages : 152
Book Description
This report focuses on the development of a new method of analysis of laterally loaded piles embedded in a multi-layered soil deposit treated as a three-dimensional continuum. Assuming that soil behaves as a linear elastic material, the governing differential equations for the deflection of laterally loaded piles were obtained using energy principles and calculus of variations. The differential equations were solved using both the method of initial parameters and numerical techniques. Soil resistance, pile deflection, slope of the deflected pile, bending moment and shear force can be easily obtained at any depth along the entire pile length. The results of the analysis were in very good agreement with three-dimensional finite element analysis results. The analysis was further extended to account for soil nonlinearity. A few simple constitutive relationships that allow for modulus degradation with increasing strain were incorporated into the analysis. The interaction of piles in groups was also studied.
Author: Dipanjan Basu Publisher: Purdue University Press ISBN: 9781622601264 Category : Transportation Languages : en Pages : 152
Book Description
This report focuses on the development of a new method of analysis of laterally loaded piles embedded in a multi-layered soil deposit treated as a three-dimensional continuum. Assuming that soil behaves as a linear elastic material, the governing differential equations for the deflection of laterally loaded piles were obtained using energy principles and calculus of variations. The differential equations were solved using both the method of initial parameters and numerical techniques. Soil resistance, pile deflection, slope of the deflected pile, bending moment and shear force can be easily obtained at any depth along the entire pile length. The results of the analysis were in very good agreement with three-dimensional finite element analysis results. The analysis was further extended to account for soil nonlinearity. A few simple constitutive relationships that allow for modulus degradation with increasing strain were incorporated into the analysis. The interaction of piles in groups was also studied.
Author: Lymon C. Reese Publisher: ISBN: Category : COM624G (Computer program) Languages : en Pages : 312
Book Description
When the soil immediately below the base of a structure will not provide adequate bearing capacity, piles can be used to transfer load from the structure to soil strata which can support the applied load. This report deals with analysis of the lateral interaction of pile shaft and soil. Examples of such problems encountered by the Corps of Engineers are single-pile dolphins and baffles for grade control structures. A computer program called COM624, along with documentation, was developed at the University of Texas (UT) at Austin, to analyze laterally loaded pile problems. Analysis performed by program COM624 is dependent upon soil parameters input to the program. These soil parameters take the form of curves which simulate the nonlinear interaction of the pile and the surrounding soil. The UT Report also presented criteria for developing these soil response curves in various types of soils. This report consolidates the information available on laterally loaded pile analysis and provides supplementary data on Program COM624 (redesignated as COM624G). It describes modifications made in the input procedures and the addition of graphics options.
Author: Anirudhan I.V. Publisher: Springer ISBN: 9811303681 Category : Science Languages : en Pages : 325
Book Description
This book comprises select proceedings of the annual conference of the Indian Geotechnical Society. The conference brings together research and case histories on various aspects of geotechnical engineering and geoenvironmental engineering. The book presents papers on geotechnical applications and case histories, covering topics such as (i) shallow and deep foundations; (ii) stability of earth and earth retaining structures; (iii) rock engineering, tunneling, and underground constructions; (iv) forensic investigations and case histories; (v) reliability in geotechnical engineering; and (vi) special topics such as offshore geotechnics, remote sensing and GIS, geotechnical education, codes, and standards. The contents of this book will be of interest to researchers and practicing engineers alike.
Author: H. L. Gill Publisher: ISBN: Category : Languages : en Pages : 66
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: Richa Bhatnagar Publisher: ISBN: Category : Languages : en Pages : 126
Book Description
The reliability-based analysis of laterally loaded piles needs to be incorporated where the lateral movement of the foundation affects the operation of the structure. The 'p-y' approach is a widely used soil-pile interaction model to analyze the response of laterally loaded piles. Currently, nominal values of soil parameters are used in the 'p-y' model depending on the judgments of the designers. This judgment leads to ambiguity which can potentially be overcome by using reliability based design. Following the Load and Resistance Factor Design (LRFD) approach, resistance factors may be developed for the use in design of laterally loaded piles. Furthermore, using the 'p-y' model and Monte Carlo simulation, lateral load displacement curves can be developed for laterally loaded piles. Hyperbolic load displacement behavior of the soil-pile interface is considered for the analysis. The load displacement curves are analyzed to find the probabilistic load capacity relationships of piles. These relations are then utilized to further develop the resistance factors that can be included in LRFD applications. Finally, a parametric analysis is carried out where the soil-pile interface parameters are varied to understand their effect on the resistance factors.
Author: Dipanjan Basu
Author: Dipanjan Basu
Author: Mohamed Ashour
Author: Monica Prezzi
Author: Lymon C. Reese
Author: Lymon C. Reese
Author: Anirudhan I.V.
Author: Leonard Thomas Evans
Author: H. L. Gill
Author: Richa Bhatnagar
Author: Mohamed Nabeel Abdel-Salam