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中文摘要：
以某水电工程地下厂房区地应力测量的实例，介绍３孔交汇水压致裂法三维地应力测量方法及测试结果，并联系地形地貌及区域构造条件分析测试结果的特征，也从应力场角度对地下厂房轴线的选择作出评价。
英文摘要：
The method and results of 3D in-situ stress determination ~th hydro-fracturing of three-crossed-borehole technique are presented with a case study of this method for a underground powerhouse of hydropower plant. The characters of in-situ stresses are analyzed with respect to the site tectonic and geographic conditions. Based on the measurement results of in-situ stresses, an assessment is made for the axis choice of underground powerhouse.
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