【摘要】 软弱夹层作为一种十分不利的地质现象,是影响围岩稳定性的重要因素,是水利、煤矿等工程建设的重要安全隐患。在分析软弱夹层成分组成、厚度等物理化学特性以及强度低、易泥化等力学特性的基础上,进一步分析了软弱夹层在流变渗透等情况下的本构关系,论述了煤矿中常见软弱夹层力学性质的测试,结合矿山岩体力学中的本构理论,建立了软弱夹层的本构模型,完善了软弱夹层的理论研究,并在此基础上进行了典型锚杆支护巷道含软弱夹层顶板的失稳状况分析。更多还原

【Abstract】 As a very unfavorable geological phenomena,the weak rock is an important factor in the stability of surrounding rock,and important potential safety hazard in water conservancy,coal mine and other projects.Based on the analysis of the composition of weak rock,physical and chemical characteristics such as thickness and so on,as well as low intensity,easy sliming mechanical characteristics,and further analyzed the weak interlayers on rheological permeate etc cases constitutive relationship,discusses in coal mine in common test of weak rock mechanical properties,combined with mine rock mechanics and the constitutive theory,establish a weak interlayers of constitutive model and perfect the theory research of soft intercalation,and on this basis analyzed the typical roadway bolting containing soft interlayer roof instability condition.更多还原