某水库厂房边坡蠕滑体稳定性分析

Stability Analysis of Creep Mass of A Reservoir Plant Slope

针对某水库厂房边坡在降雨、开挖、管理房施工等因素综合作用下出现持续变形并形成蠕滑体的问题,结合边坡工程地质情况,阐述了其变形破坏特征、变形原因及破坏模式;采用变形、应力、渗压等原位监测手段,详细分析了边坡在开挖前后、支护治理过程中的变形,指导了边坡的开挖及支护;最后通过FLAC;数值模拟,分析了边坡的稳定性现状与变形规律,结果与现场实际情况相吻合。支护措施完成后,边坡的稳定性得到显著提高,可为类似工程边坡的监测、稳定性分析及支护设计提供参考。

The plant slope of a reservoir appears continuous deformation and forms creep body under the comprehensive action of rainfall,excavation,management room construction and other factors.Combined with the engineering geological conditions,the deformation and failure characteristics,deformation causes and failure modes are described.In situ monitoring methods such as deformation,stress and seepage pressure are adopted to analyze the deformation of the slope before and after excavation and in the process of support treatment in detail,which guides the slope excavation and support.Finally,FLAC;numerical simulation test is used to analyze the stability status and deformation law of the slope.The results are consistent with the actual situation.After the completion of the supporting measures,the stability of the slope has been significantly improved.It can provide reference for monitoring,stability analysis and support design of similar engineering slope.