摘要
为最大限度地回收峪耳崖金矿盲21#脉采空区隐患资源,利用MIDAS软件对该矿21#盲采空区进行了模型建立、模拟计算以及稳定性分析,分析结果表明当空区暴露面积达到600 m2时空区周边拉应力较大,并存在塑性破坏的风险。根据模拟计算结果设计确定空区暴露面积不应超过350 m2,采取设置人工矿柱的方式对隐患资源顺序回采,并配合相应的地压监测措施,保障隐患资源回收安全进行。
In order to maximized the recovery rate of hidden danger resources in No. 21 blind vein of Yuerya gold mine, the mined - out area model in No. 21 blind vein is made and simulated by MIDAS in this article. Its stability analysis result shows that surrounding rock of the mined zone have a large tensile stress and a risk of plastic failure when the exposed area exceed 600 square meters. Based on the analysis ,we conclude that the exposed area should not exceed 350 square meters. Artificial pillar are set to make sure the hidden danger resources order stoping and the mining must combine with the ground pressure monitoring measures simultaneously to make sure residual ore recovery safety.
出处
《湖南有色金属》
CAS
2014年第2期1-4,60,共5页
Hunan Nonferrous Metals
关键词
隐患资源回收
数值模拟
稳定性
hidden danger resources recovery
numerical analysis
stability
