摘要
采用有限元数值计算软件Midas专注于隧道分步开挖的特点,将构造应力融入到地表移动与变形的计算中,模拟计算构造应力条件下西石门铁矿北采区马河沉陷区地表移动变形过程,归纳不同开采阶段地表移动盆地的产生与发展过程,揭示构造应力下马河沉降区的变化规律。通过与实际数据的对比,总结有限元数值计算存在误差的原因。
Considering that tunnels are excavated by sections, tectonic stress is integrated into the calculation of ground surface movements and deformation by using finite element numerical calculation software Midas. Under calculated tectonic stresses, ground surface movement and deformation process of Mahe subsidence area of northern mining area in Xishimen Iron Mine are simulated. Formation and development process of ground surface movement basins at different mining stages are summarized, and change laws of Mahe subsidence area under tectonic stress are uncovered. Through comparison with actual data, causes of errors in finite element numerical calculation are summarized.
出处
《矿业工程》
CAS
2015年第1期56-58,共3页
Mining Engineering
关键词
开采沉陷
数值计算
mining subsidence
numerical calculation
