中文摘要：

通过对新集矿区石盒子组主采煤层顶、底板上千个试件进行室内试验测试，获取了该矿区典型岩性的密度、弹性模量、泊松比及抗压、抗拉强度等物理力学参数。并利用数理统计方法对测试参数进行回归拟合．得到了各主要参数的分布概型及最优估计参数。

英文摘要：

The laboratory tests with thousands of specimens from four mines of Xinji coal mine have been carried out, which lead to the physical and mechanical parameters of the typical lithologic rocks. The distribution patterns and their optimal estimation characterized parameters of the above physical and mechanical properties are also obtained, by means of mathematical statistics and fitting method.