摘要
对地应力的准确分析和把握是采矿工程设计合理性的先决条件,因此在巷道设计、采场布置、采矿方法的选用、采场结构参数和开采顺序的确定,围岩支护加固方式的选用以及地压控制措施的制定等方面都需要考虑地应力的影响。基于岩石的Kaiser效应,介绍了利用岩石声发射Kaiser效应测试原岩应力场的原理及测试技术,通过加工6个特殊方向的岩石试件,进行了声发射试验,得到了各个方向的正应力值,并由此计算出了测点的3个主应力值及方向,其结果对于该矿区的采矿工程布置具有重要的意义。
Analyzing and grasping the in-situ stress accurately is the prerequisite of the reasonable of mining engineering design,so the influence of in-situ stress should be considered in the following situations,design of roadway,stope layout,selection of mining method,determination of stope structure parameters and mining sequence,selection of the surrounding rock bolting reinforcement methods,development of ground pressure control measures. The rock acoustic emission Kaiser effect is adopted to test the stress field of original rock. The acoustic emission experiment is conducted by processing the six special direction of rock specimen,so the normal stress values of all directions are obtained,besides that,the three principal stress values and directions are calculated. The above research results has the important significant for the layout of mining engineering in the mining area.
出处
《现代矿业》
CAS
2014年第12期13-16,共4页
Modern Mining
基金
国家自然科学基金项目(编号:51164016)
昆明理工大学自然科学研究基金资助项目(编号:KKSY201321059)
