广东某公路膨胀岩滑坡成因分析及处治措施研究

针对广东某高速公路K139+772.2~+935段右侧路堑边坡膨胀岩的工程特性、膨胀岩滑坡主要影响因素、形成机理以及破坏模式通过现场调查、专项勘察及深层位移监测等技术手段，给出了滑坡界限、浅层滑动面和深层滑动面的深度；通过敏感性分析，得出了滑坡影响因素的大小排序；运用Geo-Studio软件进行了稳定性计算和加固方案比选。研究提供的计算参数、滑坡推力、安全系数及加固方案符合实际情况，为该滑坡治理方案设计提供了重要数据支撑，经过治理，取得了良好效果。

Study on Genesis Analysis of Expansive Rock Landslide along a Highway in Guangdong and the Control Measures

For the expansive rock of K139+772.2~+935 section of the right cutting slope along the highway in Guangdong, in relation to its engineering properties, and the main influencing factors, formation mechanism and failure modes of the rock landslide, herein the landslide boundary, and the depth of shallow and deep slide were given by means of field investigation, special prospecting and monitoring of deep displacement; then the factors influencing the landslide were ranked according to the sensitivity analysis; and with Geo-Studio software, the stability calculation and reinforcement scheme selection were carried out. The calculation parameters, landslide thrust, safety coefficient and reinforcement scheme resulted from the study are consistent with the actual situation, and offer important data support to the conceptual design of landslide control, thus obtain good effect.