蒲石河抽水蓄能电站地下厂房区三维地应力测量研究
Water Conservancy Science and Technology and Economy（2012）
Abstract
为了解蒲石河抽水蓄能电站地下厂房区三维地应力情况,现场测试采用空心包体应变计法,共获得3个测点的三维应力数据,并综合考虑树脂弹模和泊松比、应变花位置、柱塞对环氧树脂套筒抗力和环氧树脂套筒与岩壁粘结情况等因素,修正了围压率定弹模计算公式.结果表明,考虑柱塞对环氧树脂套筒抗力等因素影响的弹模修正计算结果比一般应变计弹模修正计算结果大3.8％;该抽水蓄能电站下厂房区域是以构造应力为主的中等偏低的地应力场.
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Key words
hydropower station,three-dimensional
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