摘 要

随着我国道路建设的迅速发展，边坡问题日趋复杂和严重，但由于我们对边坡防治技术的缺乏，从而为道路边坡工程留下许多隐患。榔沙路滑坡边界清晰，张拉裂缝明显，该滑坡地段在强降雨和地震的激发下，存在再次滑动的可能。边坡失稳会直接影响路基的稳定性，随即将会造成交通中断和社会负面影响。因此对边坡进行治理将是一个严峻的问题，并且需要我们去不断创新和发展。

基于土力学与基础工程的基本理论，本文按照边坡防治设计标准及实践应用，对榔沙路某边坡防治工程进行了基础设计，分析边坡稳定性时采用剩余推力法,在了解边坡失稳具体诱因后，对滑坡采取抗滑桩支护的治理方案进行综合治理。并对其进行相关图纸绘制，所得结果对榔沙路某边坡防治工程具有重要指导意义。

关键词：边坡防治；稳定性；抗滑桩

Abstract

With the rapid development of road construction in our country, the slope problem becomes more and more complex and serious, but because of the lack of slope prevention technology, there are many hidden dangers for the road slope project. The landslide boundary of Langsha road is clear and the tension cracks are obvious. Under the stimulation of heavy rainfall and earthquake, there is the possibility of sliding again. The instability of slope will directly affect the stability of subgrade, and then will cause traffic disruption and social negative impact. Therefore, slope management will be a serious problem, and we need to continue to innovate and develop.

Based on the basic theory of soil mechanics and foundation engineering, according to the standard of slope control design and its practical application, the foundation design of a Slope Control Project of Lang Sha road is carried out, and the residual thrust method is used to analyze the stability of the slope, after understanding the specific causes of slope instability, the landslide was treated by anti-slide pile support. The related drawings are drawn, and the results have important guiding significance for a Slope Control Project of Lang Sha road.

Key Words：slope control；stability；anti-slide pile

目 录

第1章 绪论 1

1.1 工程概况 1

1.1.1基本特征 ............................................................................................................1

1.1.2变形特征 ............................................................................................................1

1.2 研究的目的及意义 .......................................................................................................1

1.3 国内外研究现状 ...........................................................................................................2

1.4 预期目标 .......................................................................................................................2

第2章 边坡地质条件 ...............................................................................................................3

2.1地形地貌 .......................................................................................................................3

2.2地层岩性 .......................................................................................................................3

2.3水文地质条件 ...............................................................................................................4

2.3.1地表水 ................................................................................................................4

2.3.2 地下水 ...............................................................................................................4

2.4 地质构造、地震及区域稳定性 ..................................................................................4

2.4.1地质构造 ............................................................................................................4

2.4.2地震烈度 ............................................................................................................5

2.4.3区域稳定性 ........................................................................................................5

第3章 边坡的稳定性分析及推力计算 ...................................................................................6

3.1滑坡稳定性分析 ...........................................................................................................6

3.2边坡稳定性系数及推力计算 .......................................................................................6

3.3结果分析及防治建议 ...................................................................................................10

第4章 抗滑桩设计 ...................................................................................................................11

4.1 桩位置及滑坡推力的确定 ..........................................................................................11

4.2设计资料 .......................................................................................................................11

4.2.1岩（土）体基本参数 ........................................................................................11

4.3 桩的设计 .....................................................................................................................12

4.4 外力条件 ...................................................................................................................12

4.5 桩身内力计算 .............................................................................................................13

4.5.1 受荷段桩身内力计算 ......................................................................................13

4.5.2 锚固段桩侧应力和桩身内力计算 ..................................................................13

4.6 桩的结构设计 .............................................................................................................16

4.6.1 基本参数 ..........................................................................................................16

4.6.2 纵向受力钢筋计算 ..........................................................................................17

4.6.3 箍筋计算 ..........................................................................................................17