摘要
采空区上部预留矿柱的回采工作影响到整个矿山的安全生产、采矿方法及其实施.为正确评价上覆岩层和围岩的稳定性情况,采用实现完全温度补偿的空心包体应变技术的套孔应力解除法对三山岛金矿进行地应力测量.建立了矿区地应力场分布模型,获得了三山岛金矿地应力状态和矿区的地应力分布规律.结果表明,三山岛地区地应力场以水平应力为主,符合我国地壳运动的规律.
Mining the ore in pillars above the mine-out area comes down to the security of production, mining methods and putting in practice. In order to evaluate the stability of top terrane and wall rock precisely, the stress relief method by overcoring was used to measure the in-situ stresses in Sanshandao Gold Mine of China. In this measuring, the technique of improved hollow inclusion cells was adopted which can actualize complete temperature compensation. From the measuring results, a distribution model of in-situ stress was established, and the in-situ stress distribution rule of Sanshandao Gold Mine was analyzed. The results show that the in-situ stress field of Sanshandao orea relies mainly on horizotal stress and accords with the crustal movement rules of China.
出处
《北京科技大学学报》
EI
CAS
CSCD
北大核心
2004年第6期569-571,共3页
Journal of University of Science and Technology Beijing
基金
国家自然科学基金重大项目(No.50490271)教育部博士点基金资助项目(No.20020008021)
