| 新疆下坂地水利枢纽引水洞开挖施工 |
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| 引用本文： | 王俊生,甘亚军,杨文龙.新疆下坂地水利枢纽引水洞开挖施工[J].人民长江,2012,43(4):76-79. |
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| 作者姓名： | 王俊生 甘亚军 杨文龙 |
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| 作者单位： | 长江勘测规划设计有限责任公司工程建设与监理公司,湖北武汉,430010 |
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| 摘 要： | 针对新疆下坂地水利枢纽引水隧洞开挖中存在的不良地质条件，分析了岩爆特征及其破坏形式，并对岩爆进行了等级划分。通过布置超前应力释放孔、超前支护、优化爆破方案等措施，降低了岩爆对施工的影响。介绍了对洞中塌方空腔及岩脉段的处理措施，所提出的针对长隧洞、小洞径的通风排烟措施对类似隧洞施工具有指导意义。
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| 关 键 词： | 岩爆 超前应力释放孔 爆破方案 超前支护 通风措施 新疆下坂地水利枢纽 |
Excavation construction of intake tunnel of Xiabandi Hydro - complex in Xinjiang |
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| WANG Junsheng
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GAN Yajun
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YANG Wenlong.Excavation construction of intake tunnel of Xiabandi Hydro - complex in Xinjiang[J].Yangtze River,2012,43(4):76-79. |
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| Authors: | WANG Junsheng GAN Yajun YANG Wenlong |
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| Affiliation: | (Construction and Supervision Company,Changjiang Institute of Survey,Planning,Design and Research,Wuhan 430010,China) |
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| Abstract: | In view of the unfavorable geological condition of intake tunnel of Xiabandi Hydro-complex in Xinjiang during the excavation,the features and failure modes of rock burst were analyzed and the rock burst was graded.The influences of rock burst on construction were mitigated by the measures such as drilling stress release holes in advance,advanced supporting,optimizing blasting scheme.The treatment measures for cave collapse and rock dikes in the excavation construction are introduced.The ventilation measures taken for the long distance and small diameter tunnel have references to other similar tunnel construction. |
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| Keywords: | rock burst advanced stress release hole blasting scheme advanced supporting ventilation Xiabandi Hydro-complex in Xinjiang |
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