摘要
针对狮子山铜矿西部飘带薄小盲矿体采空区,采用DIMINE三维矿业软件与FLAC3D数值分析软件的耦合建模技术,成功地将C-ALS探测获得的采空区扫描数据导入DIMINE中创建三维块体模型,然后耦合到FLAC3D中建立采空区三维数值模型,并在FLAC3D软件中进行模拟计算。从位移、应力、塑性区分布及安全系数等方面分析了十中段和十一中段采空区的稳定性,结果表明,采空区暂时处于稳定状态,不会发生破坏。但是,在各种影响因子的共同作用下,采空区周围岩体的应力及位移会在原有水平上进一步发展。采空区上方应尽量禁止设备通行,减少爆破荷载对围岩的重复扰动,以防止安全事故的发生。
The coupling modeling technology that combined by DIMINE 3D mining software and FLAC3v data analysis software is applied to the thin blind orebody mined-out area in west copper ore ribbon in Shizishan, the mined-out area scanning data detected by C- ALS is successfully lead - in DIMINE to create 3D block model, then coupling to FLAC3D to create the 3D data model of mined-out area, and the analog computation is carried out in FLAC3D software. The stability of mined-out area in ten and eleven mining level is analyzed from displacement, stress, plastic zone distribution, safety factors and so on, the results show, the mined-out area is in the stable state temporari- ly, it will not be damaged. However, The stress and displacement of mined-out area surrounding rock will be developed on the base of the original level under the interaction of each impact factor. The devices are forbidden to traffic on the top of mined-out area as much as possi- ble, so that the repeated intrusion of blasting load to the surrounding rock shall be reduced to prevent the safety accident.
出处
《云南冶金》
2015年第4期1-5,9,共6页
Yunnan Metallurgy
