大红山铜矿主斜坡道稳定性数值研究

The Stability Numerical Study of the Main Ramp of Dahongshan Copper Mine

地下开采中井巷系统稳定性不仅关系到生产的可持续化,更重要的是确保施工人员和工程安全。为了给矿山井巷系统的稳定性研究提供一定的参考,在参考了国内外相关的研究和计算方法的基础上,采用ANSYS有限元软件,对大红山主斜井系统建模并进行了数值计算,计算结果表明:爆破振动波对应力集中的两侧区域影响波动较小在1MPa以内,拱顶应力较小区域影响反而较大达到6MPa,拱顶处位移在0.028m到0.0287m之间波动,波动范围仅0.7mm。

The stability of mine roadway system of underground mining not only related to the sustainable production,but it is more important to ensure the safety of construction personnel and projects.The reference is made to the domestic and overseas relevant study and computing method in order to study on the stability of mine roadway system,on the basis of the above mentioned research,ANSYS finite element software is adopted for numerical calculation of main inclined shaft system modeling,the computed results show:the vibration wave of blasting has less influence on two regions of stress concentration,within 1 Mpa,on the contrary,the arch crown with small stress has big influence,which can reach to 6 Mpa,the displacement of arch crown fluctuated between 0.028 m to 0.0287 m,the fluctuation range is only 0.7 mm.