| 积石峡水电站导流洞交叉段开挖支护施工技术 |
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| 引用本文： | 苏晓军.积石峡水电站导流洞交叉段开挖支护施工技术[J].水力发电,2011,37(11). |
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| 作者姓名： | 苏晓军 |
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| 作者单位： | 黄河上游水电开发有限责任公司工程建设分公司,青海西宁,810000 |
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| 摘 要： | 积石峡水电站工程导流洞及中孔泄洪洞交叉段(以下简称交叉段)地质条件复杂,断面多变,跨度及施工高差大,工程安全问题突出。为确保交叉段顺利贯通及施工中的安全,在进行了必要的岩体稳定数值仿真模型及理论分析计算后,制定了分序开挖,素喷混凝土、锚杆、预应力锚索支护的施工方案和支护技术。实践中严格按方案实施,未发生安全事故,表明采取的措施是合理、有效的。
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| 关 键 词： | 导流洞 交叉段 开挖 支护 施工技术 积石峡水电站工程 |
Construction Technologies for Excavating Cross Section of Diversion Tunnel in Jishixia Hydropower Station |
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| Su Xiaoiun.Construction Technologies for Excavating Cross Section of Diversion Tunnel in Jishixia Hydropower Station[J].Water Power,2011,37(11). |
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| Authors: | Su Xiaoiun |
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| Affiliation: | Su Xiaojun(The Engineering Construction Branch Company of Huanghe Hydropower Development Co.,Ltd.,Xining 810001,Qinghai,China) |
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| Abstract: | As the complex geological condition,diverse cross-section shape,bigger span and larger height difference in the cross section area of diversion tunnel and spillway tunnel in Jishixia Hydropower Station project,the engineering safety is significant.For guaranteeing the safe construction,the excavation and support program,including sub-sequence excavation and spraying plain concrete,anchor rode and pre-stressed anchorage cable supporting,are determined after numerical analysis of surrounding rock stability.Th... |
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| Keywords: | diversion tunnel cross section excavation support construction technology Jishixia Hydropower Station Projec |
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