采动覆岩裂隙演化规律的特征研究  

Study on characteristics of mining overburden fracture evolution rules

作　　者：米文瑞 于广明[1] 李亮[1] 张洋[1] 孙叶冰 

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033

出　　处：《工程建设》2016年第5期24-28,共5页Engineering Construction

基　　金：国家自然科学基金项目(51374135)

摘　　要：地下矿物开采过程中,地层中的原始地应力场遭到破坏,造成覆岩应力重新分布,进而引起了覆岩的移动与破断形成了裂隙场。基于相似材料模拟试验得出覆岩裂隙演化的一般规律,即裂隙场的物理特征;利用有限元数值模拟试验,研究在煤层动态开采过程中,上覆岩体的应力分布状态,并联系裂隙场的物理特征作出了进一步的解释。in the redistribution of overburden stress and then caused the movement of overlying strata and the formation of the fracture field. Based on the simulation test of similar materials, the general law of the evolution of the overlying rock is obtained, that is the physical characteristics of the crack field. By using the finite element numerical simulation test, the stress distribution state of overlying rock mass was studied during the dynamic mining of coal seam, and further explanations were given in combination with the physical characteristics of the fracture field.

关 键 词：采动覆岩 裂隙场 自然平衡拱 应力场 MIDAS/GTS 

分 类 号：TD325[矿业工程—矿井建设]