锦屏Ⅱ水电站辅助洞岩爆灾害评价及对策研究

›› 2009, Vol. 30 ›› Issue (S2): 422-426.

锦屏Ⅱ水电站辅助洞岩爆灾害评价及对策研究

章奇锋¹，周春宏¹，周辉²，张凯²

1.中国水电顾问集团华东勘测设计研究院，杭州 310014；2.中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室，武汉 430071

收稿日期:2009-07-20 出版日期:2009-08-10 发布日期:2011-06-21
作者简介:章奇锋，男，1982年生，助理工程师，主要从事水电勘察工作
基金资助:
国家自然科学基金项目(No. 50979104、50539090)；国家自然科学基金项目（No.10772190）

Research on rock burst estimation and control measures for auxiliary tunnels in Jinping Ⅱ hydropower station

ZHANG Qi-feng¹, ZHOU Chun-hong¹, ZHOU Hui², ZHANG Kai²

1.East China Investigation and Design Institute, CHECC, Hangzhou 310014, China; 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China

Received:2009-07-20 Online:2009-08-10 Published:2011-06-21

摘要/Abstract

摘要： 锦屏Ⅱ水电站辅助洞是典型的深埋隧洞，高应力条件下的岩爆灾害一直是设计和施工阶段面临的主要问题之一。通过统计辅助洞开挖过程中岩爆的基本规律，结合地应力和典型岩层的室内岩石力学试验，采用不同的岩爆评价指标对辅助洞的岩爆危险性进行了评价分析。并针对辅助洞工程的实际情况，讨论了施工过程中岩爆防治的措施，提出相应的岩爆控制对策，为锦屏Ⅱ水电站正在施工的4条深埋长大引水隧洞中岩爆的预测和防治提供了重要的基础性数据和借鉴，并可为现场施工提供指导

关键词: 锦屏Ⅱ水电站, 辅助洞, 岩爆分析, 控制对策

Abstract: Auxiliary tunnels of Jinping Ⅱ hydropower station are deeply buried. Rock burst under high geo-stress is one of the main problems to be taken into account. With the statistical data of the rock burst in the auxiliary tunnels and the in-situ stress and the mechanical properties of the rock, risk of rock burst in the auxiliary tunnels is analyzed by using different indexes. In addition, the prevention and cure methods of rock burst in the auxiliary tunnels are discussed. The results can provide basic support for rock burst estimation and prevention in the process of construction of four diversion tunnels in Jinping Ⅱ hydropower station.

Key words: Jinping Ⅱ hydropower station, auxiliary tunnels, rock burst analysis, control measures

中图分类号:

O 341

章奇锋，周春宏，周辉，张凯. 锦屏Ⅱ水电站辅助洞岩爆灾害评价及对策研究[J]. , 2009, 30(S2): 422-426.

ZHANG Qi-feng , ZHOU Chun-hong , ZHOU Hui , ZHANG Kai. Research on rock burst estimation and control measures for auxiliary tunnels in Jinping Ⅱ hydropower station[J]. , 2009, 30(S2): 422-426.

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