摘要
工作面上方采空区积水是影响安全生产的一个重要因素,针对煤矿采空区积水问题展开研究。应用有关规程中记载的裂隙到高度计算方法,对采后裂隙带分布规律进行研究,并选取计算结果最大值确定煤层开采后的裂隙最大范围,根据三下规程中保护煤柱留设原则,选取最大最有效的保护层厚度,确定安全生产煤岩柱的高度。对比保护煤柱的范围与煤层与采空区之间的位置关系,得出重复开采后不会有安全威胁,开采可行。
Water goaf up working face is an important factor to affect safe mining production,the water goaf problem of Hongyang Mine was studied. The distribution of fracture zone after mining was studied by fracture and height calculation method,the maximum value was set as the maximum fracture scope after mining,based on the protection of coal column after mining under water,village and bridge,the maximum and the most effective protection seam thickness was chosen to set the height of coal column. Considering the position relationship between the protection coal column scope,coal seam and goaf,it was got that the repeated mining was feasible.
出处
《煤炭与化工》
CAS
2016年第1期5-7,共3页
Coal and Chemical Industry
基金
国家自然科学基金资助项目(51204089)
关键词
保护煤柱
重复采动
裂隙带高度
保护层厚度
protection coal column
repeated mining
fracture zone height
protection seamthickness
