摘要
选择邢东矿-980m大巷为监测巷道,以智能型多基点位移监测仪为监测工具,对巷道围岩不同层位岩层的变形情况进行高精度监测。综合分析监测结果得出:巷道围岩破坏范围大,且围岩变形主要集中在1～3m和3～6m;巷道围岩各层位岩层的变形过程大致分为:剧烈变形阶段、趋缓变形阶段、稳定变形阶段。根据所得结果,提出了以"高阻让压,二次支护"为原则的分阶段支护技术,并取得了良好的成效。
Selecting -980m Main Roadway in Xingdong Colliery as monitoring roadway and applying intelligent multi-point displacement meter, rock deformation of different rock stratum positions was monitored. Results showed that failure range of surrounding rock was large, deformation value was mainly within 1-3m and 3-6m. Rock deformation processes might be classified as： severe deformation phrase, slow deformation phrase, steady deformation phrase. Grading supporting principle of resisting pressure with high resistance and secondary supporting was put forward. Good effect was made.
出处
《煤矿开采》
北大核心
2013年第5期48-51,共4页
Coal Mining Technology
基金
国家自然科学基金资助项目(51204187
51234005)
关键词
高应力
变形特征
岩层层位
分阶段支护
high stress
deformation characteristic
rock stratum position
grading supporting
