现代矿业
現代礦業
현대광업
Express Information of Mining Industry
2011年
4期
22-24,42
,共4页
田磊%谢文兵%古际亮%娄培杰%王其洲
田磊%謝文兵%古際亮%婁培傑%王其洲
전뢰%사문병%고제량%루배걸%왕기주
跨采%底板巷道%锚网索支护%矿压观测
跨採%底闆巷道%錨網索支護%礦壓觀測
과채%저판항도%묘망색지호%광압관측
Cross mining%Floor roadway%Bolt-mesh-anchor support%Mineral pressure observation
通过对Ⅱ28采区运输上山的顶板离层、表面位移、深部位移以及锚杆锚索受力状态实测分析,得出底板跨采条件下锚网索支护巷道的围岩变形规律;结果表明,围岩变形主要发生在上方跨采工作面采动影响剧烈阶段,尤其是对于裂隙比较发育的岩体,合理的支护可控制围岩的变形量,保证巷道的断面满足生产要求。
通過對Ⅱ28採區運輸上山的頂闆離層、錶麵位移、深部位移以及錨桿錨索受力狀態實測分析,得齣底闆跨採條件下錨網索支護巷道的圍巖變形規律;結果錶明,圍巖變形主要髮生在上方跨採工作麵採動影響劇烈階段,尤其是對于裂隙比較髮育的巖體,閤理的支護可控製圍巖的變形量,保證巷道的斷麵滿足生產要求。
통과대Ⅱ28채구운수상산적정판리층、표면위이、심부위이이급묘간묘색수력상태실측분석,득출저판과채조건하묘망색지호항도적위암변형규률;결과표명,위암변형주요발생재상방과채공작면채동영향극렬계단,우기시대우렬극비교발육적암체,합리적지호가공제위암적변형량,보증항도적단면만족생산요구。
Through the analysis of measured data on roof abscission layer, surface displacement, deep displacement and forced state of bolt and cable of Ⅱ 28 mining area up roadway, surrounding rock deformation law of cable anchor support roadway under condition of floor cross mining was obtained. The result indicated deformation of surrounding rock mainly occurred at effect violent period of mining of a- bove cross mining working face, especially at the rock mass with more developed fracture. Reasonable support could control the deformation of surrounding rock and ensure the section of roadway could meet the request of production.
