复合灾害综放工作面窄煤柱沿空掘巷安全技术应用  

Application of safety technology for narrow coal pillar excavation along the roadway in compound disaster fully mechanized caving face

作　　者：雒军莉 LUO Junli(Uulagou coal mine,yankuang xinjiang mining co.,LTD.,Changji 831100,China)

机构地区：[1]兖矿新疆矿业有限公司硫磺沟煤矿,新疆昌吉831100

出　　处：《煤矿现代化》2021年第1期21-23,共3页Coal Mine Modernization

摘　　要：硫磺沟煤矿以往开采相邻工作面之间留设40m煤柱来防止相邻采空区通透漏风而引起采空区的自然发火,同时也兼顾了工作面矿山压力的影响。但却造成了煤炭资源的浪费(约占全矿煤炭损失的40%),然而煤柱在采空区侧被压酥,甚至压碎,极易造成采空区煤柱自然发火,对安全生产构成威胁,同时若煤柱留设不合理易形成应力集中,造成其下伏巷道维护困难。因此,开展复合灾害矿井综放工作面窄煤柱沿空掘巷安全保障技术研究,可实现窄煤柱护巷,既有利于提高煤炭资源回收率,降低冲击地压发生的可能性,也可以消除或减少因煤柱引起的煤层自然发火与瓦斯超限事故,同时更有利于巷道维护。In the past,40m coal pillars were set up between adjacent working faces in sulfagou coal mine to prevent ventilation and air leakage in adjacent goaf from causing spontaneous combustion in the goaf.Meanwhile,the influence of mine pressure on the working face was also considered.However,it leads to the waste of coal resources(accounting for about 40%of the total coal loss in the mine).However,the coal pillar is pressed and crushed at the side of the goaf,which is very easy to cause the coal pillar spontaneous combustion in the goaf,posing a threat to the safety of production.Meanwhile,if the coal pillar is left unreasonably,it is easy to form stress concentration,resulting in the maintenance difficulties of the underlying roadway.,therefore,to develop compound disaster mine narrow coal pillar of full-mechanized caving mining face roadway driving along goaf in security technology research,which can realize the narrow roadway protection coal pillar,is beneficial to improve the recovery rate of coal resources,reduce the possibility of percussive ground pressure,also can eliminate or reduce caused by coal seam spontaneous combustion and gas overrun accident,at the same time,more conducive to the maintenance of roadway.

关 键 词：复合灾害 综放工作面 沿空掘巷 技术 

分 类 号：TD822.3[矿业工程—煤矿开采]