软岩巷道锚杆支护结构可靠度分析
首发时间:2010-01-07
摘要:软岩巷道的围岩变形量大,可锚性差是造成锚杆锚固力低或失效的重要原因。根据软岩巷道围岩的力学参数的随机变量特征,本文应用地下工程结构可靠度理论,提出并建立软岩巷道锚杆支护结构可靠度分析模型,并给出其可靠度的计算方法,并结合相关参数提出了提高支护结构可靠度的措施。
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Analysis on soft rock roadway bolting structural reliability
Abstract:Soft rock roadway large amount of surrounding rock deformation may be caused by poor anchor anchoring power is low or the failure of the major reasons. According to soft rock roadway surrounding rock mechanical parameters of a random variable characteristics, this paper, underground engineering structural reliability theory, and the establishment of soft rock roadway bolting structural reliability analysis model, and gives the calculation of its reliability, and combination of relevant parameters supporting structure proposed to improve the reliability measures.
Keywords: Soft rock roadway bolting structural reliability limit state
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No.3863550244912628****
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