清溪水电站左坝肩隐伏岩溶管道对坝肩稳定的影响分析  

The analysis of the impact of the concealed karst in left abutment of Qingxi Hydropower station on abutment stability

作　　者：彭峰[1] 

机构地区：[1]遵义水利水电勘测设计研究院,贵州遵义563000

出　　处：《吉林水利》2013年第8期15-17,共3页Jilin Water Resources

摘　　要：清溪水电站坝址区地表、地下岩溶发育,经多种手段勘察,坝线区岩溶相对发育较弱。地形地质条件对中高碾压砼拱坝的适应性较好,通过坝肩开挖揭露,左坝肩在上下层勘探平硐和勘探钻孔之间下游发育有隐伏岩溶管道,其分布位置为坝肩抗滑岩体受力范围内,且前期工作未揭露,施工阶段通过洞探测绘,结合有限元等计算后进行综合分析,判定该岩溶管道经常规处理后抗滑、抗变形满足设计要求,为工程安全蓄水提供了可靠依据。The karst has development in the surface and underground in Qingxi Hydropower Station Dam Area,by various means investigation,karst developed relatively weak in dam line.Topographic and geologic conditions on the high RCC arch dam is good adaptability through abutment excavation revealed in the lower left abutment and drilling exploration adits are developed between the Karst downstream pipeline,and its distribution for the dam shoulder stabilizing force within the rock,and the preliminary work did not disclose the construction phase through-hole probe mapping,combined with the finite element calculations conduct a comprehensive analysis to determine the karst conduit after conventional treatment skid,anti-deformation meet the design requirements,safe water for the project to provide a reliable basis.

关 键 词：清溪水电站 左坝肩 隐伏岩溶管道 对抗滑 变形的影响 

分 类 号：TV642.45[水利工程—水利水电工程]