各向异性软岩的变形与渗流耦合特性试验研究.pdfVIP

第 30 卷第 5 期 岩才二力学 Vol.30 No.5 2009 年5 月 Rock and Soíl Mechanics May 2009 :t.编号， 1000-7598 (2009) 05-1231-06 各向异性软岩的变形与渗流藕合特性试验研究 李燕1 ，杨林德2 ，董忠良 1 ，张功新 l 门，中交四航工程研究院有限公词，广州 510230; 2. 闵济大学地下建筑与工程系，上海 200092 ) 摘要，根据呢质粉砂岩和泥岩在禁盟和平行于屁现面的条件下进行的三三轴压缩和渗流试验，得到了不问圃Bi及岩石成应条 件下呢质粉砂岩和泥岩的弹性楼去章，建立了基于摆玛丽夹角和罔陋的软岩弹性棋盘控制方程。渗滞张最与阳力的精合关系是 各向异性渗流淌合分析的关键闷题，通过引入的力主轴与渗雄主轴非一致时渗避张慧与服力的响应关系，建哎了各向异性渗 避张最与!以力楠合的控制方礁，井对比了试验数据与计算结果，为备向异性软岩渗流成力辅合分析模型的建立奠定了理论基 础。 关键询s 各向异性:软岩:渗流鹅合:变形 中圈分樊号. U 456.1; 0357.3 文献标识码IA Experimental research on characteristic of deformation and hydromechanical coupling of anistropic rock 1 2 1 1 LI Yan , YANG Lin-de , DONG Zhí-liang , ZHANG Gong-xín (l. En阴阳市Ig Technology Research lnstitute ofCCCC Fo巾Harbor Engineering Bur阔u， Guan萨hou， Guangdong 510230, China; 2. Depa此ment of Geotechnica1 En伊1时呵，Ton刽i Universi凯 Shanghai 200092 , China) Abstract: Based on 位iaxial compressíon and permeabilíty test of brown mudstone and c1ay町 síltstone perpendicular to and parallel with bedding planes，放le change rule of elastic moduli of brown mudstone and clayey siltstone is obtained. And elastic modulus expression of soft rock is proposed with di他rent confining p附sures and angles of bedding plane. Coupling relation between permeability tensor 朋d s衍esses ís key problem in hydromechanical coupling analysís of anistropíc rock.ηle stress-dependent permeabí1ity tensor of soft rock is íntroduced where princípal stresses do not coincí伽 with the principal permeabilitíes, so control equation of stress唰permeabiJity relationship is presented. Measured data and calculation results are compared. And these can be used in the research of