| 西南某水电站厂房平洞围岩变形破坏特征分析 |
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| 引用本文： | 李晓龙,王家兴,臧立超,谢琨.西南某水电站厂房平洞围岩变形破坏特征分析[J].四川轻化工学院学报,2014(1):69-72. |
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| 作者姓名： | 李晓龙 王家兴 臧立超 谢琨 |
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| 作者单位： | 成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 |
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| 基金项目： | 地质灾害防治与地质环境保护国家重点实验室自由探索项目（SKLGP2011Z009） |
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| 摘 要： | 西南某水电站厂房平洞CPD1岩性组合较为复杂,且片理面发育.根据现场调查结果显示,洞室围岩变形破坏特征主要包括三种类型：结构型破坏、构造—应力型破坏、应力型破坏.主洞围岩总体稳定性良好,部分洞段出现掉块及劈裂倾倒破坏;支洞开挖方向与片理面方向小角度相交,围岩总体自稳性较差,在高地应力情况下出现严重的弯折内鼓现象,需采取一定的支护措施.
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| 关 键 词： | 变形破坏特征 地应力 片理面 岩体结构 |
Analysis About the Sorrouding Rock Damage Characteristics of the Adit in a Southwest Hydropwer |
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| LI Xiaolong,WANG Jiaxing,ZANG lichao,XIE Kun.Analysis About the Sorrouding Rock Damage Characteristics of the Adit in a Southwest Hydropwer[J].Journal of Sichuan Institute of Light Industry and Chemical Technology,2014(1):69-72. |
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| Authors: | LI Xiaolong WANG Jiaxing ZANG lichao XIE Kun |
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| Affiliation: | ( State Key Laboratory of GeoHazard Prevention and GeoEnvironment Protection, Chengdu University of Technology, Chengdu 610059, China) |
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| Abstract: | The adit CPD1 of a hydropower station in the southwest whose lithology is more complicated contains a lot of schistosity plane. Based on the site survey results, the main characteristics types of surrounding rock deformation and failure include structural damage, structural-stress damage and stress damage. Except some holes appear chip off-falling and the splitting dumping damage, the general stability of surrounding rock is good. However, when the direction of tunnel excavation and schistosity plane direction are small angle intersecting, the overall stability of surrounding rock is poorer. Especially severe bending inner drum phenomenon will be come out under the condition of high ground stress, it is necessary to take certain support measures. |
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| Keywords: | deformation and failure characteristics geostress schistosity plane rock structure |
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