水布垭水利枢纽采用溜井-平洞运输方式的探讨

An Approach on Shaft Horizontal Tunnel Transport Way in Shuibuya Hydro Project

水布垭水利枢纽混凝土面板堆石坝坝高 2 33m,大坝地处狭窄河谷 ,坝体高 ,填筑量大 ,开挖利用料的 3个主要供应点 :溢洪道、地下厂房进水口及马崖高边坡等均位于高程较高上 ,若考虑从坝下游运输上坝 ,运距有 6 .5～ 1 0 .0 km,同时施工道路布置困难 ,因此 ,构思了溜井 -平洞运输方案 ,并介绍溜井 -平洞运输方案与常规方案的比较 ,以及对几个主要技术问题的分析 .

The concrete face rock fill dam of Shuibuya hydro project is 233 m in height.The dam in the narrow valley,is high.The construction condition is bad because of the complexities of topography and geology.The embankement quantities of the dam are larger.There are three main supply sites with available excavated materials:spillway,entrance of underground power plant and Maya slope,all of which are above the elevation.It is 6.5~10.0 km to transport the excavated materials from both sides of dam and supplementary materials from the quarry to the dam site.Meanwhile,it is inconvenient for general layout of construction,shaft horizontal tunnel can be considered.This paper compares the shaft horizontal tunnel transport way with the regular transport way and analysizes several main technical problems.