某矿深部开采对地表及竖井稳定性影响研究

Study on the impact of deep mining on the stability of the surface and vertical shafts of a mine

随着国内矿山开采的进行,开采深度越来越深。对于改扩建矿山,面临着生产接续问题,在进行深部接续开采时,往往地表主要构建筑物会位于岩移监测范围内。本文采用FLAC3D软件对矿体的开采进行了数值模拟,得到了有关地表沉降及主要竖井变形数据。模拟结果表明,深部矿体开采充填后,对地表以及主要坚井稳定性基本无影响,深部开采能够保证矿山生产安全,为矿山接续工程提供了有力的科学依据。

The mining depth of mines in China has gone deeper and deeper.The renovation and expansion of mines are faced with the problem of production continuity.As deep mining continues,the main structures on the surface are often located in the monitoring range of rock displacement.In this paper,the FLAC3D software is used for numerical simulation on the mining of the ore body,and the surface subsidence data and deformation data of main vertical shafts are obtained.The simulation results show that after the mined deep ore body is filled,there is little influence on the stability of surface and main vertical shafts.Deep mining can ensure the safety of mine production,which provides a solid scientific evidence for continuous mine engineering works.