山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
9期
3-5
,共3页
深部巷道%断层构造%围岩冒落%井字搭接%注浆
深部巷道%斷層構造%圍巖冒落%井字搭接%註漿
심부항도%단층구조%위암모락%정자탑접%주장
deep roadway%fault structure%surrounding rock caving Tic-tac-toe lap%grouting
协庄煤矿-850 m西翼回风暗斜井巷道出现顶板离层及两帮移近，围岩浆皮开裂，裸露围岩松散冒落，甚至出现三处巷道围岩冒落堵塞巷道现象，严重影响了行人安全，增大了矿井通风阻力。为提高巷道支护强度，首先对冒落段巷道顶板采用锚网喷支护，而后打设锚索作为承载支架，其上“井”字搭接方木至实顶，然后以下方外露锚索为标志，悬挂钢筋网作为假顶，最后架设拱形棚构建软弱围岩条件下高冒段支护强化体系。
協莊煤礦-850 m西翼迴風暗斜井巷道齣現頂闆離層及兩幫移近，圍巖漿皮開裂，裸露圍巖鬆散冒落，甚至齣現三處巷道圍巖冒落堵塞巷道現象，嚴重影響瞭行人安全，增大瞭礦井通風阻力。為提高巷道支護彊度，首先對冒落段巷道頂闆採用錨網噴支護，而後打設錨索作為承載支架，其上“井”字搭接方木至實頂，然後以下方外露錨索為標誌，懸掛鋼觔網作為假頂，最後架設拱形棚構建軟弱圍巖條件下高冒段支護彊化體繫。
협장매광-850 m서익회풍암사정항도출현정판리층급량방이근，위암장피개렬，라로위암송산모락，심지출현삼처항도위암모락도새항도현상，엄중영향료행인안전，증대료광정통풍조력。위제고항도지호강도，수선대모락단항도정판채용묘망분지호，이후타설묘색작위승재지가，기상“정”자탑접방목지실정，연후이하방외로묘색위표지，현괘강근망작위가정，최후가설공형붕구건연약위암조건하고모단지호강화체계。
The return air subinclined shaft in Xiezhuang Coal Mine- 850 West Wing , appeared the roof separation and two sides moving closer, surrounding rock cracking, even caving to block roadway, which seriously impact on the pedestrian safety,and increase the mine ventilation resistance, in order to improve the roadway support strength, ifrstly use the anchor net spray support in all of caving roadway roof ,and then set cable as a bearing bracket, use the timber to support the roof, and hanging steel mesh as false roof, ifnally erect vaulted roof to strengthen support .
