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A Treatment Method of High Earth Filling Slope under Complex Conditions

Author: SunJian
Tutor: MoHaiHong
School: South China University of Technology
Course: Geotechnical Engineering
Keywords: high earth filling slope anti-slide piles high-low double-row piles finite element method
CLC: TU473.1
Type: Master's thesis
Year: 2011
Downloads: 95
Quote: 0
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Abstract


As a kind of enginnering measure, anti-slide pile has obtained widely application in slope reinforcement engineering and treatment of landslide geological disasters. However, the design of piles still exist many problems, and the result of the design still has some uncertainties. There are many problems such as the mechanics of anti-slide pile and the interaction effect between pile and soil need to be sloved. The design of anti-slide piles has to depend on the experience of the engineerers, especially the design of double-row piles is more immature. And the research of high-low double-row piles is few, which fall behind the practice.The mail research contents are as follows:1.This article summarizes the existing domestic and foreign research results of the retaining structure of double-row anti-slide piles, and several currently used calculation methods are compared and analyzed. Raise questions that need further study in this field, providing the beneficial reference for this study.2.Briefly introduces the types and calculation method of the anti-slide piles, especially the use of finite element method. Than, summarize the basic theory of using finite element analysis of double-row piles supporting structure and the finite element program MIDAS-GTS, which can be considered non-linear soil, pile-soil contact, and can simulate the impact of the construction process to ensure the accuracy and quality of results.3.3D computation model of high-low double-row anti-slide piles structure is built through MIDAS-GTS for researching.and analyzing the mechanics influencing factors of the high-low double-row anti-slide piles. Such as pile-tip connection method,Slope filling height,the distance between two rows, the length and section of Former pile,and other factors. Through the comparison of the analysis result,some reference results are summarized.4.Finally,using the method described in this paper, a landslide project is analyzed. The rationality and applicability of the model in this project are validated. Thus, the high-low double-row anti-slide piles is worthy of promotion and extensive application in Slope reinforcement and treatment engineering.

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Foundation > Pile foundation and deep foundation > Pile
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