【作者】 林斌； 徐冬；

【Author】 LIN Bin;XU Dong;School of Civil Engineering and Architecture,Anhui University of Science and Technology;

【机构】 安徽理工大学土木建筑学院；

【摘要】 为了研究煤系地层中赋存深度的变化对深部岩石力学参数的影响,以50m为一个岩层深度范围,通过对淮南矿区潘集背斜上某矿赋存深度在800~1300m深度范围的同一层泥岩和砂岩样本的单轴抗压强度、弹性模量、泊松比、黏聚力、内摩擦角、抗拉强度等岩石基本物理力学参数的试验研究,采用SPSS19.0对试验结果分别进行统计分析,结果发现,泥岩和砂岩的泊松比均随深度的增加而减小,而这两种岩石其余5个力学参数则随赋存深度而增加,且深度的变化对砂岩力学参数变化影响更大;深度在1000m附近时,泥岩和砂岩的力学参数都会出现显著变化。更多还原

【Abstract】 In order to study on the effect of depth on mechanical parameters of deep rock in coal bearing strata,using 50 m as a layer depth in this work,Mudstone and sandstone samples are taken from 9 different depths ranging from 800 m to 1300 m at Zhu Ji mine in Huainan mining area.According to the national standard,some physical and mechanical parameters of rock are obtained,including uniaxial compressive strength,elastic modulus,Poisson’s ratio,cohesion,friction angle,uniaxial tensile strength,by uniaxial compression tests,variable angle shear tests and Brazilian tests for two kinds of rock respectively after processing.Analyzing all these data respectively with statistics software SPSS 19.0,this paper get the law of the 6 mechanical parameters of mudstone and sandstone with depth and the conclusion that the effect for mechanical parameters of sandstone is larger with increasing depth.Moreover,the results also indicate that the mechanical properties of mudstone and sandstone have significant changes in the depth of around 1000 m.更多还原