索风营水电站地应力测试及成果分析

Earth Stress Survey & Its Result Analysis Of Suofengyi Hydropower Station

介绍孔径变形应力解除和水压致裂这2种地应力测试方法在索风营水电站的实际应用情况,对这2种地应力测试结果进行了分析,为设计人员布置地下洞室工程及方案选择提供了依据,避免了埋深较大的地下厂房应力集中,保证了工程施工进展顺利,为电厂今后安全运行打下了坚实的基础。

The paper introduced practice of two methods of earth stress measure in Suofengyi Hydropower Station, the two methods are stress releasing by deformation of hole-diameter and splitting by water pressure. The analysis on measuring results provided a basis for the designer in layout of underground tunnel project and selection of schemes resulting in avoiding stress concentration of underground powerhouse deeply embedded, insuring smooth construction, and playing a solid foundation for safety operation.