【作者】 王俊光； 梁冰； 李平；

【Author】 WangJunguang, Liangbing, Liping (Department of Mechanics Engineering and Science, Liaoning Technical University, Fuxin ,123000,Liaoning, China)

【机构】 辽宁工程技术大学力学与工程科学系；

【摘要】 天然岩体中存在大量的孔隙和裂隙,这些缺陷不仅改变了岩体的力学性质,也严重影响到岩体的渗透特性和水流规律。裂隙岩体的渗透水压力使岩体应力产生非常大的变化,同时应力变化也影响裂隙岩体渗透性。考虑岩体渗流和应力耦合分析是研究地下水活动规律的首要问题。岩体系统具有复杂的结构,一般认为,岩体系统是非均质各向异性不连续的多相介质体系。当岩体以裂隙为主,且其分布较密集时,可将岩体系统看做等效连续多相介质体系。本文运用等效连续介质理论,建立了等效连续岩体渗流与应力耦合分析的数学模型,充分考虑了渗透水压力和裂隙的存在对岩体应力及孔隙裂隙水压力变化产生的影响。文末给出了渗流场与应力场耦合分析的工程算例。更多还原

【Abstract】 There is a lot of pore and fracture in native rock, the defect no only changes the mechanic character of rock, but also has influenced on permeable and floating laws seriously. Permeable pressure in fractured rock mass indeed changes stress in rock, at the same time the change has influences permeable of fractured rock mass. Coupling analysis of seepage and stress is the main problem to researching groundwater floating laws. Rock system has complex structure, generally accepted, it is nonhomoqeneous nonisotropic discontinuous polyphase medium. When the fracrues is the main character and distribution intensive, the rock is considered equivalent continuous polyphase medium. The paper exert equivalent continuous medium theory, acquireing mathematical modeling of seepage and stress coupling effect in equivalent continuous rock, and sufficiently considering influenced that existence of permeable pressure and fracture has on rock stress and water pressure in pore and fracture. The latter part of the paper produced a project’s example on coupling analysis of seepage and stress更多还原