磺厂沟流域煤系地层边坡崩塌成因机制及治理

山西煤炭资源丰富,普遍存在着不合理采煤现象,导致崩塌地质灾害频发。为了探讨崩塌灾害成因,以山西磺厂沟为例,在全面调查地质环境条件的基础上,分析了边坡的结构特征和变形破坏模式,认为边坡是在采煤和差异风化的影响下不断变形破坏的。运用有限元法分析了坡体内部应力应变特征,根据变形破坏机制提出了"清方+排水+浆砌块石+SNS防护系统"的治理方案。

Analysis of slope collapse mechanism in coal measure strata in Huangchanggou Valley and its treatment

Shanxi is rich in coal resources and the widespread irrational coal mining phenomenon has led lots of collapse geological disasters. Taking Hangchanggou Valley in Shanxi Provinces as an example, we explored the collapse formation mechanism. On the basis of comprehensive survey of geological environment conditions, we analyzed the slope structure characteristics and found that the slope collapse is cause of continuous deformation under the influence of coal mining and differential weathering. In addition, we analyzed the characteristics of internal stress and strain of the slope by using finite element numerical analysis and according to the deformation failure mechanism, we put forward the control measures as follow: cleaning the slope surface + draining water+ slope protection of stone masonry + SNS protection system.