| 三峡引水工程秦巴段的主要工程地质问题 |
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| 引用本文： | 石玲,张永双,韩金良,石菊松.三峡引水工程秦巴段的主要工程地质问题[J].地质通报,2009,28(5):651-658. |
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| 作者姓名： | 石玲 张永双 韩金良 石菊松 |
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| 作者单位： | 中国地质科学院地质力学研究所,北京,100081 |
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| 基金项目： | 中国地质调查局地质调查项目 |
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| 摘 要： | 为了研究三峡引水工程秦巴段的重大工程地质问题，在区域工程地质条件和线路工程地质调查分析的基础上，利用工程地质类比法，重点分析评价了秦巴山区与活动断裂、深埋隧道建设相关的重大工程地质问题。初步揭示：①秦巴山区14条区域规模的断裂带主体走向近于东西向，与引水隧道走向大致垂直，现今活动差异明显，其中活动性较强、规模较大的大巴山弧形断裂、宁陕-栗扎坪断裂、石泉-安康断裂、三花石-汉王城断裂位于引水工程的关键部位，需要注意其引起的隧道突水和大变形灾害；②秦巴山区与深埋隧道相关的岩爆、突水灾害比较严重，特别是秦岭主峰附近的强岩爆、大巴山附近的断裂与岩溶相关的大规模突水灾害值得高度注意。
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| 关 键 词： | 三峡引水工程 区域工程地质条件 工程她质问题 活动断裂 岩爆 突水 |
Major engineering geological problems of the Qinling-Dabashan segment of the Three Gorges Water Diversion Project, China. Geological Bulletin of China |
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| Shi L,Zhang Y S,Han J L,Shi J S.Major engineering geological problems of the Qinling-Dabashan segment of the Three Gorges Water Diversion Project, China. Geological Bulletin of China[J].Geologcal Bulletin OF China,2009,28(5):651-658. |
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| Authors: | Shi L Zhang Y S Han J L Shi J S |
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| Institution: | Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China |
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| Abstract: | Based on regional engineering geological conditions analysis and linear investigations, the major engineering geological problems of the Qingling-Dabashan sector of the Three Gorges Water Diversion project are analyzed and assessed using engineering geological analogy method in which stress on major engineering geological problems related to active faults and deep buried tunnels construction in the Qingling-Dabashan Mountainous region. This paper primarily reveals that the major orientation of the 14 regional faults is close to east-west direction, which vertically cross the diversion tunnels and with significantly activity differences with the present situation, among which the Dabashan arc fault, the Lingshan-Lizhaping fault, the Shiquan-Ankang fault and the Sanhuashi-Hanwangcheng fault are the relative stronger activities and larger scale fault, and also located at the key part of the Diversion Project, which might result in water inrush and large deformation in tunnels. Furthermore, This paper ascertains that there are serious potential rock burst and water inrush hazards related to the deep buried tunnels in the Qingling-Dabashan Mountain region, especially the potential strongest Rock burst near the Qingling main peak and the large scale water inrush related to faults and Karst near the Dabashan, and great attention should be paid to the above mentioned potential problems. |
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| Keywords: | Three Gorges Water Diversion Project regional engineering geological condition engineering geological problems active fault rock burst water inrush |
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