肖威, 赵楠, 李博, 李新均, 王华伟, 詹志先. 2018: 某放射性废物处置场围岩渗透性研究. 工程地质学报, 26(s1): 691-696. DOI: 10.13544/j.cnki.jeg.2018238
    引用本文: 肖威, 赵楠, 李博, 李新均, 王华伟, 詹志先. 2018: 某放射性废物处置场围岩渗透性研究. 工程地质学报, 26(s1): 691-696. DOI: 10.13544/j.cnki.jeg.2018238
    XIAO Wei, ZHAO Nan, LI Bo, LI Xinjun, WANG Huawei, ZHAN Zhixian. 2018: STUDY ON THE SURROUNDING ROCK PERMEABILITY OF A CERTAIN POTENTIAL RADIOACTIVE WASTE DISPOSAL SITE. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 691-696. DOI: 10.13544/j.cnki.jeg.2018238
    Citation: XIAO Wei, ZHAO Nan, LI Bo, LI Xinjun, WANG Huawei, ZHAN Zhixian. 2018: STUDY ON THE SURROUNDING ROCK PERMEABILITY OF A CERTAIN POTENTIAL RADIOACTIVE WASTE DISPOSAL SITE. JOURNAL OF ENGINEERING GEOLOGY, 26(s1): 691-696. DOI: 10.13544/j.cnki.jeg.2018238

    某放射性废物处置场围岩渗透性研究

    STUDY ON THE SURROUNDING ROCK PERMEABILITY OF A CERTAIN POTENTIAL RADIOACTIVE WASTE DISPOSAL SITE

    • 摘要: 某放射性废物处置场围岩为花岗岩。为了评价围岩的渗透性,首先对研究区岩体进行了均质区划分。在均质区内,开展了详细的节理几何测量工作,获取了节理各几何特征参数概率分布模型。然后基于蒙特卡洛模拟方法和二维节理网络水力学理论,采用Matlab程序编制了节理网络随机模拟和渗流计算程序,多次重复抽样得到了具有统计稳定性的研究区渗透张量特征值均值。为了使计算结果更符合工程实际,采用压水试验得到的渗透系数修正了渗透张量,更符合工程实际。

       

      Abstract: The surrounding rock of a radioactive waste disposal site is granite. In order to evaluate the permeability of surrounding rock, the homogeneous zone was first divided into rock masses in the study area. In the homogenous area, based on numerous detailed joint geometry surveys, probability distribution functions of joint geometric parameters were analyzed. Based on Monte Carlo simulation and two-dimensional fractured rock mass hydraulics, a stochastic simulation and seepage calculation program for joint network was compiled based on Matlab. The statistical average of the principal permeability tensor, obtained by multiple sampling statistics. In order to make the value from the program more in line with the actual conditions of the project, the permeability tensor was revised by using the permeability coefficient obtained from the hydraulic pressure tests.

       

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