基于不同含水率滑带土水致破坏研究及防治方案建议

Research on water induced failure of sliding zone soil with different moisture contents and suggestions for prevention and control measures

随着工程活动的愈发频繁,人为因素诱发滑坡地质灾害越来越多,其中由于加载作用诱发滑坡最为常见。本文依托“贵州省1:1万地质灾害+风险斜坡精细化调查示范项目”,采用野外调查、室内岩土试验及稳定性分析相结合的方法,对某矿区10号挡墙滑坡的形成机理进行了研究,通过对比研究不同含水率下粉质黏土和含碎石粉质黏土的物理力学参数变化,总结了不同滑带土剪切强度与含水率之间的关系,并提出了计算公式,为后期防治工程决策提供了依据。

With the increasing frequency of engineering activities,there are more and more geological disasters caused by human factors,among which landslides caused by loading are the most common.This article relied on'the Guizhou Province 1:10000 geological disasters+risk slope refinement investigation demonstration project',and used a combination of field investigation,indoor geotechnical tests,and stability analysis methods to study the formation mechanism of the No.10 retaining wall landslide in a certain mining area.By comparing and studying the changes in physical and mechanical parameters of silty clay and silty clay containing crushed stones under different moisture contents,the relationship between shear strength and moisture content of different sliding zone soils was summarized,and a calculation formula was proposed to provide a basis for later prevention and control engineering decision-making.