为解决岩性、试验环境和物理环境等因素导致岩石单轴抗压强度测定过程中出现的随机性和模糊性问题,对淮南矿区11-2号煤层顶板岩石进行单轴压缩试验,获得了88组试验数据,以单轴抗压强度为因变量,弹性模量和天然密度为自变量,运用SPSSI9.0专业数理统计软件建立多元非线性回归模型,并运用该模型对淮南矿区13号煤层顶板岩石单轴抗压强度进行预测。结果表明:多元线性回归模型能够较好地预测岩石的单轴抗压强度,为煤系地层有关工程设计及试验估算岩石单轴抗压强度提供参考。

In order to solve the random and fuzzy problems of the rock uniaxial compressive strength caused by the lithology, the test environment, physical enviro nment and other factors, according to the roof rock strata above No. 11-2 seam of Huainan Mining Area, an uniaxial compressive tests were conducted and there were 8 8 group test data obtained.Based on uniaxial compressive strength as a dependent variable and the elastic modulus and natural density as an induced variable, the prof essional mathematical statistics software was applied to establish a multi element non-linear regression model.With the application of the model, a prediction was cond ucted on the uniaxial compressive strength of the roof rock above No.13 seam of Huainan Mining Area.The results showed that the multi element linear regression mod el could well predict the uniaxial compressive strength of the roof rock. The model would provide the references to estimate the uniaxial compressive strength of the roc k in the similar coal measure strata.

中国博士后科学基金资助项目(2012M521211)；