【摘要】 为了评价金沙江阿海水电站坝址区地应力的分布特征,进行了水压致裂法测试与分析。结果表明:应力量值较低,最大水平主应力方位呈NW向。后者可以归结为坝址区地形地貌和水平构造应力的共同作用,并受到周边区域断裂构造的影响。更多还原

【Abstract】 In order to evaluate the characteristics of in-situ stress distribution in Ahai Hydro-power Station’s dam site,Jinshajiang River,the hydro-fracturing measurement and analysis are conducted.Results reveal that the stress magnitude is relatively low and the maximum horizontal principal stress’ direction is NW.The later character should be attributed to the combined action of dam site’s geomorphology and horizontal tectonic stress conditions, and is also influenced by the regional geostructural fractures.更多还原