摘要
文中设计了小块段条式采煤法,在走向条带的基础上增加留设小块段煤柱,可以解放47%的井筒煤柱资源,对于多次扰动维修的立井井筒,基本无需维修可以保持安全运行,该方法为闭坑井筒煤柱回收以及复杂条件下"三下"开采提供了技术参考。
In the paper,a mining method of strip with small piece was designed,which based on along strip,a small piece of coal pillar was added on the basis of the along strip,and 47% shaft pillar resource could be produced,and for the vertical shaft wells with multiple disturbances,it can be kept safe operation without maintenance,this method provided a technical reference for mining shaft pillar in closing mine and " under three" mining under the complex geological conditions.
引文
[1]刁乃勤.斜井保护煤柱开采及地表影响观测分析[J].矿山测量,2018,46(6):19-22.
[2]刘波,王志留,汤世杰,等.越界开采引起既有井筒垮塌的力学分析及修复实例[J].煤炭学报,2018,43(S1):61-70.
[3]刘明.工业广场煤柱开采对井筒影响分析[J].矿山测量,2016,44(4):81-84.
[4]魏跃东.荆各庄矿工业场地煤柱开采对井筒变形影响研究[J].煤炭技术,2014,33(12):37-39.
[5]高均海,刁乃勤,王遗南.双曲分布函数地表移动与变形预计[J].矿山测量,2014(5):60-62.
[6]李正军,谭志祥,王向阳,等.夹河矿工业广场煤柱条带开采技术研究[J].煤矿开采,2017,22(4):57-60.
[7]赵保成,谭志祥,张坤.工广煤柱条带开采数值模拟研究及应用[J].煤炭技术,2016,35(2):15-18.
[8]薛松.固体充填开采合理井筒保护煤柱留设尺寸研究[D].徐州:中国矿业大学,2016.
[9]刘大超.平煤七矿工业广场下煤柱开采技术方案研究[D].焦作:河南理工大学,2016.
[10]赵忠义,陈昕昕,梁华杰.复杂地质条件下井筒保护煤柱回采方法研究[J].煤炭技术,2017,36(7):40-42.
[11]刘利勇.矿井井筒煤柱开采技术措施[J].黑龙江科学,2016,7(1):102-105.
[12]孟凡森,孔素丽,高金辉.立井变形测量及损害原因分析[J].水力采煤与管道运输,2013(1):69-71.