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粗糙裂隙渗流及其受应力作用的计算机模拟
Computational Simulation of the Fluid Flow and the Effect of Stress in Rough Fractures
【摘要】 基于裂隙微小单元内立方定律成立的假定和有限元法,建立了粗糙裂隙渗流及其受应力作用的计算机模拟技术.通过数值模拟的手段,进行任意粗糙裂隙等效水力隙宽的确定,并考察应力作用对裂隙面渗流的影响.通过算例分析,研究了有接触面积的粗糙裂隙和张开裂隙的等效水力隙宽的表征方法.
【Abstract】 In this paper, based on FEM and the hypothesis the CubicLaw can be satisfied in a small element of fissure, a computational technique for simulating the fluid flow and the effect of stress in rough fractures is presented. By the method suggested, the hydroequivalent aperture of arbitrary rough fracture can be obtained. Through numerical examples, some methods for the determination of hydroequivalent aperture are studied, and several useful conclusions are given.
【关键词】 渗流;
裂隙岩体;
有限元法;
计算机模拟;
【Key words】 seepage; fractured rock masses; finite element method; computational simulation;
【Key words】 seepage; fractured rock masses; finite element method; computational simulation;
【基金】 国家自然科学基金
- 【文献出处】 河海大学学报 , 编辑部邮箱 ,1997年06期
- 【分类号】P641.135
- 【被引频次】30
- 【下载频次】431