Permeability Properties of Jointed Rock with Periodic Partially Filled Fractures

Permeability Properties of Jointed Rock with Periodic Partially Filled Fractures
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周期性部分充填裂隙节理岩的渗透特性

DOI:
10.1155/2019/4039024
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发表时间:
2019-05
期刊:
影响因子:
1.7
通讯作者:
Yuan Xing-Yu
Yuan Xing-Yu
中科院分区:
地球科学4区
文献类型:
--
作者:
Ye Fei;Duan Jun-Chao;Fu Wen-Xi;Yuan Xing-Yu

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岩体裂隙对岩体的水文特性有着重要的影响。为研究裂隙部分充填岩体的渗流特性,建立了裂隙部分充填岩体渗流数学模型。在该模型中,裂缝中的流体服从Navier-Stokes方程,孔隙介质和岩石基质中的流体服从Brinkman-Extended Darcy方程。求解了裂隙部分充填岩体等效渗透系数的解析解,并将其化为某些特殊的已知结果。与实验数据的比较表明,良好的协议,从而验证了本计算的有效性。
Rock fractures always influence the hydrological properties of a rock mass. To investigate the seepage characteristics of a rock mass with partly filled fractures, a mathematical model is established. In this model, the clear fluid in fractures is governed by the Navier-Stokes equation, and the fluid both in the porous medium and rock matrix are subjected to the Brinkman-Extended Darcy equation. The analytic solution of an equivalent permeability coefficient for a rock mass with partly filled fractures is solved, and it could be reduced to some special known results. Comparisons with experimental data show good agreement, thus verifying the validity of the present computations.
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