陕西煤炭
陝西煤炭
협서매탄
SHAANXI COAL
2012年
1期
19-21
,共3页
大断面煤巷%锚杆支护%失稳%控制技术
大斷麵煤巷%錨桿支護%失穩%控製技術
대단면매항%묘간지호%실은%공제기술
large cross-section coal roadway%bolt support%instability%control technology
以羊场湾煤矿110205大断面巷道破坏失稳为例,分析了受外载荷后产生局部变形诱发大断面锚杆支护煤巷失稳破坏的原因,并制定了预防措施,确定科学合理的支护布置形式和技术参数。现场应用表明该技术有效控制了巷道变形,支护效果明显,对类似条件下巷道支护方案的确定具有一定的参考价值。
以羊場灣煤礦110205大斷麵巷道破壞失穩為例,分析瞭受外載荷後產生跼部變形誘髮大斷麵錨桿支護煤巷失穩破壞的原因,併製定瞭預防措施,確定科學閤理的支護佈置形式和技術參數。現場應用錶明該技術有效控製瞭巷道變形,支護效果明顯,對類似條件下巷道支護方案的確定具有一定的參攷價值。
이양장만매광110205대단면항도파배실은위례,분석료수외재하후산생국부변형유발대단면묘간지호매항실은파배적원인,병제정료예방조시,학정과학합리적지호포치형식화기술삼수。현장응용표명해기술유효공제료항도변형,지호효과명현,대유사조건하항도지호방안적학정구유일정적삼고개치。
taking the instability and destruction of large cross-section tunnel in Yangchangwan coal mine for example,the analysis shows that the reason of instability and failure of large cross-section roadway is the external load induced by local deformation.The paper proposed the preventive measures and rational layout parameters of roadway support.The application on-site of the support technology shows that the deformation of the roadway is effectively controlled and this technology has a certain reference value for determining support program under the similar condition.
