煤矿开采复合顶板结构面应力分布特点分析  

Stress analysis of construction surface of complex roof in deep mining

作　　者：彭祥新[1] 王爱兰[1] 

机构地区：[1]安徽建筑工业学院土木工程学院,合肥230022

出　　处：《安徽建筑工业学院学报（自然科学版）》2011年第2期31-33,57,共4页Journal of Anhui Institute of Architecture(Natural Science)

摘　　要：采用ANSYS程序数值模拟了煤矿开采复合顶板结构面剪应力和法向应力并分析了其分布特点,结果表明:不同原岩应力结构面剪应力分布规律基本相同;结构面法向应力分布和原岩应力及复合顶板岩性有关,深部开采软弱岩性复合顶板结构面法向应力主要呈现拉应力。The shear stress and normal stress of construction surface of complex roof were analyzed by simulation in ANSYS,the results were drawn that the shear stress of construction surface was basically similar in the different situation of original rock stress;nornal stress was in connection with original rock stress and rock characters of complex roof,and take on pull stress in chief of complex roof of weak rock character in deep mining.

关 键 词：煤矿开采 原岩应力 岩性 结构面剪应力 结构面法向应力 

分 类 号：TU452[建筑科学—岩土工程]