龙滩水电站枢纽区工程地质条件概述

对龙滩水电站坝址区进行了大量的地质勘探工作，对坝址岩体力学特性、大型地下洞室群围岩稳定性、建筑物高边坡稳定性、左岸倾倒蠕变岩体及天然建筑材料等关键性工程地质问题进行了专题研究，较为全面地揭示了枢纽区工程地质情况、主要建筑物工程地质条件及高边坡地质条件和工程处理措施。继而，还提出了关于坝轴线布置、坝基开挖、洞室围岩稳定及支护、边坡开挖等方面的看法。龙滩工程进展顺利。

General situations of engineering geologic conditions of Longtan Hydropower Station

This article fully describes the engineering geological conditions of Longtan Hydropower Station, the high slope geological conditions and some countermeasures, on the basis of a large number of geological explorations on the dam site area of Longtan Hydropower Station on the characteristics of the rock mass mechanics, the stability of the surrounding rocks of the large underground cavities, the stability of high slope around the structures, the geological conditions of the left bank creep rock masses and the natural building materials further more. It puts forward some suggestions on the layout of dam axis, dam foundation excavation, the stability and supporting of the surrounding rocks of cavities and the slope excavation. The construction of Longtan Hydropower Station is carrying out smoothly.