摘要
运用FLAC3D数值模拟软件对常村矿2101工作面的不同推进长度进行模拟,分析了开采过程中该工作面覆岩垂直应力变化、垂直位移量变化和塑性区破坏特征。数值模拟结果表明,随着工作面的向前推进,覆岩的垂直应力和垂直位移量均呈现不断增大的趋势,而塑性区的变形由于受拉应力和剪切应力破坏,最终呈现出中间低两端高的马鞍状态分布。
Using FLAC^3D numerical simulation software to simulate the different working length of the 2101 working face of Changcun mine, and analyze the vertical stress changes, vertical displacement and plastic zone damage characteristics of the overlying strata in the mining process. The numerical simulation results show that with the working face advancing, vertical overburden stress and vertical displacement showed increasing trend, and the deformation of the plastic zone. is mainly due to the tensile stress and shear stress damage, eventually showing a higher at the two ends of the saddle state distribution.
出处
《煤炭技术》
北大核心
2017年第11期7-9,共3页
Coal Technology
基金
国家自然科学基金(51264028)
关键词
数值模拟
垂直应力
垂直位移
塑性区
numerical simulation
vertical stress
vertical displacement
plastic zone mainly due to the of the saddle state
