西藏某水电站泄洪洞边坡变形体成因机制及稳定性分析

Genesis Mechanism and Stability Analysis of Deformation Body of Spillway Tunnel Slope of a Hydropower Station in Tibet

西藏高海拔地区受地质构造、地层岩性和气候环境多变等客观影响,边坡易形成潜在不稳定变形体,其成因机制和稳定性评价较为复杂。文章针对西藏某流域水电站泄洪洞出口雾化区边坡的工程地质问题,通过定性和定量分析得出边坡稳定性的结论,对工程设计、施工具有实际的价值。

Due to the objective influence of geological structure,formation lithology and changeable climate,the slope in high altitude area of Tibet is easy to form potential unstable deformation body,and its genetic mechanism and stability evaluation are complex.According to the engineering geological problems of the slope in the atomization area at the outlet of the spillway tunnel of a hydropower station in Tibet,this paper draws the conclusion of the slope stability through qualitative and quantitative analysis,which is of practical value to the engineering design and constrction.