基于FLAC^(3D)程序的采空区稳定性分析  

FLAC^(3D)-Based Stability Analysis of Mined-out Area

作　　者：孙国权[1] 李娟[2] 胡杏保[1] 

机构地区：[1]中钢集团马鞍山矿山研究院 [2]马钢南山矿业公司

出　　处：《金属矿山》2007年第2期29-32,共4页Metal Mine

摘　　要：空区治理在矿山的安全生产中具有重大的意义。基于拉格朗日算法的FLAC3D程序特别适合于求解岩土力学工程中非线性的大变形问题,这点是非常适合采矿工程的设计研究工作的。通过FLAC3D程序对某金矿的采空区稳定性进行了数值模拟分析,得出了应力应变的分布规律,制定了留间距为30 m×30 m,断面为10 m×10 m永久点柱的空区治理与矿柱回采方案。该矿山的工程实践证实该方案是经济、合理的,FLAC3D数值模拟程序可在空区的稳定性分析中提供科学依据。The treatment of mined-out area is of great importance in the mine safety production. Lagrangian methodbased FLAC^3D program is especially suitable for solving the nonlinear large deformation problem in rock mechanics engineering, which is very favorable for the design research work on mining engineering. It was used in the numerical simulation of the stability of the mined-out area in a gold mine and as a result, the stress and strain distribution law was found, based on which, a scheme for the mined-out treatment and pillar extraction involving the preservation of 10 m × 10 m permanent pillars with 10 m × 10 m sectional area and 30 m × 30 m between-pillar space was worked out. Its engineering practice has proved that this scheme is both economical and reasonable and that FLAC^3D numerical simulation program can provide a scientific basis for the stability analysis of mined-out area.

关 键 词：采空区 数值模拟 矿柱回采 围岩稳定 FLAC^3D 

分 类 号：TD752.2[矿业工程—矿井通风与安全]