多水平井巷施工对竖井稳定性影响的数值分析  

Numerical Simulation on the Dynamic Excavation of Tunnel Engineering in Large Mining Area

作　　者：黄武胜[1,2] 余伟健 

机构地区：[1]北京科技大学土木与环境工程学院 [2]中钢股份有限公司海外业务部 [3]煤矿安全开采技术湖南省重点实验室

出　　处：《金属矿山》2012年第5期35-40,共6页Metal Mine

基　　金：国家自然科学基金项目(编号:51104063)

摘　　要：针对金川三矿区主、副井系统的井巷工程进行了动态施工及相互影响的数值分析,并得到了一些有价值的成果。首先根据工程地质和围岩自身的特点,建立了主、副井控制性工程的三维数值模型。然后,根据主、副井及其各水平中段巷道的开挖特点,设计了6种不同的开挖施工方案,并采用FLAC3D对这些方案进行了计算和分析,得到了较为合理的开挖方案。计算结果表明:同时进行多个工程的开挖,势必会引起其他工程特别是1 165m水平附近的围岩,产生较大的位移,应及时进行支护和加固。The dynamic excavation of the main shaft and the auxiliary shaft in Jinchuan NO. 3 mining district was simulated, and some valuable results were obtained. According to the characteristic of engineering geology and surrounding rock mass, the three-dimensional numerical model of the main shaft and the auxiliary shaft was set up. Then, the six excavation construction projects were computed and analyzed by FLAC 3D, and some reasonable advices were got. The results show that when many projects were operated at same time, other engineering will produce large displacement, especially for surrounding rock nearly by the 1165 m Level. It should have support and strengthen in time.

关 键 词：井巷工程 动态开挖 相互影响 数值分析 

分 类 号：TD26[矿业工程—矿井建设]