节理迹长与隙宽的相关性对裂隙岩体水力学特性的影响

doi:10.13722/j.cnki.jrme.2014.s2.020

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摘要节理迹长与隙宽的相关性影响节理网络的分布和透水性，最终影响裂隙岩体的水力学特性。为此，结合Sellafield处置库工程，从统计学的角度研究节理迹长和隙宽符合幂律分布时的相关关系，基于离散元软件UDEC分析节理迹长和隙宽的相关性对裂隙岩体水力耦合特性的影响，给出一套考虑节理参数相关性的裂隙岩体水力学计算方法。计算结果表明：节理迹长与隙宽符合幂率分布时，其相关关系呈指数函数形式；考虑两者相关性时，裂隙岩体的渗透率张量及表征单元体积均变大，因此不可忽略节理参数相关性的影响。

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	吴月秀1
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关键词 ：渗透力学, 水力耦合, 渗透率, 表征单元体积, 相关关系, 幂律分布

Abstract：The correlation between joint trace and aperture has an effect on the distribution and permeability of joint network. Finally，the hydro-mechanical behavior of fractured rock mass is influenced. Based on nuclear disposal project in Sellafield，the correlation between joint trace and aperture was studied when they followed the power-law distribution. With discrete element software UDEC，the effect of correlation between joint trace and aperture on hydro-mechanical behavior of fractured rock mass was analyzed. At the end，a calculation system was proposed to do the hydro-mechanical calculation for fractured rock mass considering the correlation between joint parameters. It is concluded that correlation between joint trace and aperture has a significant effect on hydro-mechanical behavior of fractured rock mass. When the correlation between joint trace and aperture was power-law function，permeability tensor and representative elemental volume(REV) of fractured rock mass increased.

Key words： seepage mechanics hydro-mechanical coupling permeability representative elemental volume correlation power-law distribution

引用本文:

吴月秀1，刘泉声1，2，李金兰1，何军1. 节理迹长与隙宽的相关性对裂隙岩体水力学特性的影响[J]. 岩石力学与工程学报, 2014, 33(S2): 3555-3562.
WU Yuexiu1，LIU Quansheng1，2，LI Jinlan1，HE Jun1. EFFECT OF CORRELATION BETWEEN JOINT TRACE AND APERTURE ON HYDRO-MECHANICAL BEHAVIOR OF FRACTURED ROCK MASS. , 2014, 33(S2): 3555-3562.

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https://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2014.s2.020 或 https://rockmech.whrsm.ac.cn/CN/Y2014/V33/IS2/3555

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