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Analysis and Calculation of the Forces of Retaining Structure with Double-row Piles of Deep Foundation Pit

Author: WanZhi
Tutor: WangZuoZuo
School: Hunan University
Course: Geotechnical Engineering
Keywords: Pit Supporting Double-row piles Soil arching principle Soil resistance method Spatial effects Finite Element Analysis
CLC: TU476
Type: Master's thesis
Year: 2001
Downloads: 767
Quote: 14
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Abstract


This article summarize the research has double-row piles retaining structure and supporting structure system , and pointed out its inadequacies . On this basis , the soil arching principle for the analysis and calculation of the double-row piles retaining structure and vertical soil arching and level are given to the of soil arch of double row pile retaining structure system role expression ; to consider the the deep excavation spatial effects and the level of support the top of the pile ring beams role , a three-dimensional analysis of the supporting structure of the force of the double-row piles ; departure from the practical point of view of the project , an imaginary slip surface for the interface , soil arching theory over the slip surface , soil resistance below the slip surface analysis calculation model , which proposed a new method for comprehensive analysis and calculation of a double-row piles retaining structure and the preparation of a calculation program DPSS a real deep foundation pit -row machine supporting structure , the program calculated in good agreement with the results with the measured data , indicating that this paper analysis and calculation method is reasonable . The article also explains the calculation process of the double-row piles retaining structure analysis using the finite element method to take advantage of the computer analysis , analysis calculated Ansys5.5 pair of double-row piles retaining structure with state-of-the-art large finite element program , considered nonlinearity of the soil , and can simulate the impact of the construction process . The program counter- analysis of the measured data , and to continue to modify the input parameters , so that the information construction and optimization design . In this paper, the design and calculation program to explore the many Gang prime impact on the performance of double-row piles retaining structure , from the comparative analysis of the results , summarize the general law of double-row piles retaining structure obtained engineering practice quite valuable conclusions.

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