粤西某中学边坡稳定性分析与评价

Stability analysis and evaluation of the cut slopes behind a middle school in Western Guangdong province

粤西是广东省多山地区之一,近年来随着各类大型基础设施的建设以及城市化进程的加快,城市建设用地短缺的问题越来越突出。在工程建设的同时,形成了众多人工边坡,分析和评价这些边坡的稳定性,是制定正确防治措施的基础。本文以粤西某中学一个典型的人工边坡为例,在详细勘查基础上,分析了边坡岩体结构特征、可能失稳机制和危险区段,对四种工况下的边坡稳定性进行了计算和评价,依据评价结果,提出了边坡防治宜采用监测、工程措施和生物措施相结合的综合方案。分析结果和防治措施建议为粤西山区的人工边坡分析评价和治理保护提供了有益的借鉴。

The western Guangdong Province is one of the areas most prone to slope failure in Guangdong province due to its mountainous terrain.In recent years,along with large-scale infrastructure construction and urbanization,cutting and filling on slopes frequent occur,leading to more slope failure.Based on the extensive investigation,factors controlling and influencing stability of the cut slopes behind a middle school wad analyzed in this paper,followed by discussion of their possible failure mechanism.The cut slopes' stability under different conditions was quantitatively evaluated using the limit equilibrium method.Finally comprehensive treatment measures against the slope failure were proposed,including monitoring,engineering and biological measures.