煤矿开采
煤礦開採
매광개채
COAL MINING TECHNOLOGY
2014年
6期
17-20
,共4页
液压支架%矿压显现%顶梁外载%围岩
液壓支架%礦壓顯現%頂樑外載%圍巖
액압지가%광압현현%정량외재%위암
powered support%underground pressure behavior%external load of roof beam%surrounding rock
运用KJ327型矿山压力监测系统、尤洛卡和压力表3种设备,联合监测元堡煤矿综放工作面直接顶初次来压、基本顶初次来压和第1次周期来压过程中矿压显现数据,分析不同工况下压力显现特点,结合液压支架的具体结构,分析工作面开采过程中液压支架与外载大小及作用位置,结果表明元堡煤矿液压支架所承受载荷范围为6550~13110kN,合力位置距煤壁3501~5108mm,能够满足工作面支护的需要。
運用KJ327型礦山壓力鑑測繫統、尤洛卡和壓力錶3種設備,聯閤鑑測元堡煤礦綜放工作麵直接頂初次來壓、基本頂初次來壓和第1次週期來壓過程中礦壓顯現數據,分析不同工況下壓力顯現特點,結閤液壓支架的具體結構,分析工作麵開採過程中液壓支架與外載大小及作用位置,結果錶明元堡煤礦液壓支架所承受載荷範圍為6550~13110kN,閤力位置距煤壁3501~5108mm,能夠滿足工作麵支護的需要。
운용KJ327형광산압력감측계통、우락잡화압력표3충설비,연합감측원보매광종방공작면직접정초차래압、기본정초차래압화제1차주기래압과정중광압현현수거,분석불동공황하압력현현특점,결합액압지가적구체결구,분석공작면개채과정중액압지가여외재대소급작용위치,결과표명원보매광액압지가소승수재하범위위6550~13110kN,합력위치거매벽3501~5108mm,능구만족공작면지호적수요。
Applying KJ327, UROICA and pressure gage to monitoring pressure data in the process of immediate roof first caving, basic roof first weighting and 1 st periodical weighting in full-mechanized caving mining face of Yuanbao Colliery. Underground pressure behav-ior characteristic under different working states was analyzed. External load magnitude and action location of powered support in mining was analyzed. Result showed that load range bear by powered support was 6550-13110kN in Yuanbao Colliery, the distance between re-sultant force position and coal wall was 3501-5108mm, which could meet supporting requirement of mining face.
