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土工格栅加筋边坡稳定性分析

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声明

致谢

中文摘要

英文摘要

目录

Chapter 1 Introduction

1.1 Preamble

1.2 Problem Statement

1.3 The Significance of Studying the Problem of Slope stability and Stabilization

1.4 Source of my Research

1.5 Scope and Objective of the Study

1.6 Research strategy

Chapter 2 Literature Review

2.1 Introduction

2.2 Slope Stability

2.3 Fundamental Failure Mechanism

2.4 Types of Failure Modes

2.5 Factors Considered in the Assessment of Stability of Slope

2.6 Empirical Modeling

2.7 Conventional ways to Stabilizing slope

Chapter 3 Numerical Modeling

3.1 Introduction

3.2 Fundamental Principles of the Finite Difference Method

3.3 Introduction of FLAC 3D

Chapter 4 Slope Stabilization Using Geogrid

4.1 Introduction

4.2 Categories of Geogrid

4.3 Importance of GeoGrid

4.4 Geogrid Applications and Functions

4.5 Material Properties in Design

Chapter 5 Shiyan slope stability-Case study

5.1Physical Geography

5.2 Geologic structure

5.3 Neotectonic movement and earthquake

5.4 Hydrogeological condition

5.5 Unfavorable geologic process

Chapter 6 Slope stability and Evaluation

6.1 Introduction

6. 2 Limit Equilibrium Method

6.3. Geosynthetics bearing capacity checking for geogrid reinforcement soil slope

6.4 Extract form a Study Conducted by Lizheng

6.5 Shear Strength Reduction Method

6.6 Recommendations of Other Methods for the Slope Stabilization

Chapter 7 Conclusion and Recommendations

7.1 Conclusions

7.2 Recommendations and Scope for future work

参考文献

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摘要

本研究旨在评估十堰市汽车城某加筋人工边坡的稳定性。通过极限平衡分析和基于显式有限差分法的三维数值分析方法,预测土工格栅人工边坡的稳定性。文中采用了 FLAC3D和 GEOSLOPE数值计算软件进行分析,考虑了四种工况和四种强度折减系数,并计入了渗流和孔隙水压的影响。其后,分别采用FLAC3D和 GEOSLOPE分析边坡稳定性,并对两者数值计算结果进行了对比分析。边坡稳定性分析中考虑了土工格栅的影响,即分析边坡稳定性结果的同时考虑到了土工格栅的响应考虑到边坡整体的稳定,边坡在第一类工况所描述条件下最安全,该工况中包含了边坡正常使用情况。采用土工格栅可以显著增加边坡安全系数。但十堰北加筋边坡由于施工不善,综合分析确定其边坡稳定性安全系数为1.09,因此,进一步提出了几种加固方案。

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