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地球学报  2005 

风火山隧道地应力测量及工程稳定性分析

DOI: 10.3975/cagsb.2005.01.11

Keywords: 风火山隧道,地应力测量,应力状态

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Abstract:

为了解风火山隧道应力状态,在隧洞内及附近地区进行了6个点地应力测量,首次在风火山地区取得了应力实测资料。测量结果表明:风火山地区最大水平主应力量值为5.5MPa,方向为NE至NEE。应力量值与其他地区表层地应力测量结果比较,属中等应力水平;应力方向与风火山地区活动断裂调查所表征的现今区域应力场比较吻合。在地应力实测基础上,还必须结合隧道区工程地质、水文地质条件以及地震活动性,进行隧道稳定性综合分析。

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