德泽水库发电放空隧洞闸门井后缘边坡稳定性分析

Stability Analysis of the Slope at the Back of Gate Shaft of Power-emptying Tunnel in Deze Reservoir

德泽水库发电放空隧洞闸门井后缘边坡分布蠕动变形体,对闸门井及大坝的安全有较大影响。根据勘察成果及现场开挖情况,深入研究边坡的工程地质条件,分析蠕动变形体的破坏机制,确定蠕动变形体的边界和底界,并进行边坡稳定性分析,进而提出对边坡的工程处理措施,经治理取得了良好的边坡治理效果。

The creeping rock mass,which has a significant impact on the safety of the gate shaft and the reservoir dam,was found at the back of gate shaft of power-emptying tunnel in Deze reservoir.Based on the field investigation and excavation,the detailed engineering geological information was deeply analyzed.The boundary of the creeping rock mass and the deformation mechanism was clarified,and the stability of the creeping rock mass was also analyzed.Moreover,some treating measures for the unstable slope were proposed,which shows a good treating effect.