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辽阳硅石矿岩质边坡岩体裂隙宽度概率统计

DOI: 10.3969/j.issn.1005-3026.2014.06.028, PP. 885-889

Keywords: 三维网络,裂隙宽度,随机数学,卡方检验,K-S检验

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Abstract:

岩体随机不连续面三维裂隙网络模拟是近年来一项评价岩体结构特性的重要手段,但该模型中并未考虑裂隙宽度对岩体稳定性的影响.对辽阳石门硅石矿岩质边坡的裂隙进行了现场不连续面窗口调查,利用卡方检验、K-S检验相结合的方法,对所统计的裂隙宽度进行概率统计分析,从而选取最佳概率分布类型.统计分析结果表明,辽阳硅石矿岩质边坡裂隙宽度分布多呈伽马型分布函数,小于10mm宽度的裂隙占大多数,构造应力类型对裂隙宽度分布参数起主要影响,可为三维裂隙网络宽度模拟提供理论依据.

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