摘要
在我国矿井生产中上行开采的先例非常多,而上行开采的安全性是关系到安全生产和可持续发展的重点课题。为研究XV1201工作面上行开采的可行性,采用了四种方法对其开采的可行性进行了分析。最终分别得出:1通过比值法进行判别得出的结论为10煤层的开采不影响12煤的回采和准备,12煤的上行开采是可行的。2通过"三带"法判别可知,10煤层开采后,12煤层发生整体移动,其整体性不受破坏,12煤层的上行开采是可行的。3通过围岩平衡法判断可知,煤层实际间距大于上行开采必要的层间距,平衡围岩上覆岩(煤)层不会发生台阶错动,10煤层的上行开采是可行的。4通过时间间隔判别,12煤层开采滞后10煤层开采时间满足条件,对12煤层进行上行开采是可行的。综合比较得出其上行开采是可行的。
There were so many upward mining examples in chinese coal mine production and its safety was a priority subject concerning safety production and sustainable development. In order to research feasibility of upward mining in XV1201 working face, four methods were analyzed in this paper. The result including： ① 12 coal upward mining was viable without being affected by 10 coal seam through ratio method. ② 12 coal upward mining was viable on the basis of 12 coal seam overall movement without destorying its integrity after mining of 10 coal seam through＂three band＂discriminance. ③through discriminance of wall rocks balance, overlying strata coal seam of equilibrium surrounding rock would not have step dislocation because actual mining distance of coal seam was greater than necessary layer distance, so upwarding mining of10 coal seam was viable. ④ according to time interval discrimination, 12 coal seam mining laggged 10 coal seam mining time to meet conditions which showed that upwarding mining of 12 coal seam mining was viable. All above upwarding mining were viable based on comprehensive comparison.
出处
《煤炭与化工》
CAS
2016年第10期64-66,70,共4页
Coal and Chemical Industry
关键词
上行开采
比值判别法
“三带”判别法
围岩平衡判别法
时间判别法
upwarding mining
ratio value criterion
＂three band＂ discriminance
discriminance of wall rocks balance
time interval discrimination
