| 官地水电站右岸导流洞进口渐变段塌方的支护处理与计算分析 |
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| 引用本文： | 周德彦,李学权,龚华,王君.官地水电站右岸导流洞进口渐变段塌方的支护处理与计算分析[J].中国农村水电及电气化,2011(7):48-54,60. |
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| 作者姓名： | 周德彦 李学权 龚华 王君 |
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| 作者单位： | [1]中国水电顾问集团成都勘测设计研究院,成都610072 [2]四川准达岩土工程有限责任公司,成都610072 |
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| 摘 要： | 官地水电站右岸导流洞进口渐变段50m断面由方形渐变到标准城门洞形,最大开挖跨度25.6m,高度25.3m,呈弱风化状态,为Ⅳ类玄武岩。在施工过程中该段经历两次塌方,分别两次对塌方段进行相应支护处理。根据隧洞结构和地质资料建立三维有限元数值计算模型,对塌方段各工况进行分析,证明了塌方支护处理的合理性和安全性。
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| 关 键 词： | 官地水电站 导流洞 进口渐变段 塌方 支护 计算 |
Analysis of the Timbering and Calculation of the Collapse in the Gradual Changing Section of the Entrance of the Diversion Tunnel on the Right Bank of Gongdi Hydropower Station |
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| ZHOU De-yan,LI Xue-quan,GONG-Hua,and WANG-Jun.Analysis of the Timbering and Calculation of the Collapse in the Gradual Changing Section of the Entrance of the Diversion Tunnel on the Right Bank of Gongdi Hydropower Station[J].Rural Hydropower & Electrification in China,2011(7):48-54,60. |
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| Authors: | ZHOU De-yan LI Xue-quan GONG-Hua and WANG-Jun |
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| Affiliation: | 1.Chengdu Survey and Design Institute of China Hydropower Consultation Group, Chengdu 610072, China 2. Sichuan Zhunda Geotechnica! Engineering Co., Ltd., Chendu 610072, China) |
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| Abstract: | The 50m cross section of the entrance of the diversion tunnel on the right bank of Gongdi hydropower station has gradually changed into a standard gate shape. The maximum excavation span is 25.6m, the height is 25.3m with slight weathering and Class IV basalt. During the construction, the section has experienced two collapses, and the timbering treatments are provided for the two collapses. In the thesis, the 3D finite element calculation model is established to analyze the working conditions of the collapsed sections, and the rationality and safety of the timbering treatment have been proved. |
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| Keywords: | gongdi hydropower station diversion tunnel entrance gradual changing section collapse timbering calculation |
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