建井技术
建井技術
건정기술
Mine Construction Technology
2015年
z2期
92-93
,共2页
井筒破坏%原因分析%壁后注浆%锚杆%联合加固
井筒破壞%原因分析%壁後註漿%錨桿%聯閤加固
정통파배%원인분석%벽후주장%묘간%연합가고
shaft failure%cause analysis%wall post grouting%bolt%joint strengthening
斜沟煤矿1号回风斜井井口向下31.5～37.5 m段井筒，出现碹体混凝土开裂、脱落、混凝土底板鼓起开裂等破坏现象；为防止井筒碹体破坏加剧，发生坍塌影响矿井安全和正常生产，在对井筒破坏原因分析后，选择采用壁后注浆整体加固井筒及围岩＋局部锚杆加固的联合加固方案，对井筒进行了加固，收到了预期效果。
斜溝煤礦1號迴風斜井井口嚮下31.5～37.5 m段井筒，齣現碹體混凝土開裂、脫落、混凝土底闆鼓起開裂等破壞現象；為防止井筒碹體破壞加劇，髮生坍塌影響礦井安全和正常生產，在對井筒破壞原因分析後，選擇採用壁後註漿整體加固井筒及圍巖＋跼部錨桿加固的聯閤加固方案，對井筒進行瞭加固，收到瞭預期效果。
사구매광1호회풍사정정구향하31.5～37.5 m단정통，출현선체혼응토개렬、탈락、혼응토저판고기개렬등파배현상；위방지정통선체파배가극，발생담탑영향광정안전화정상생산，재대정통파배원인분석후，선택채용벽후주장정체가고정통급위암＋국부묘간가고적연합가고방안，대정통진행료가고，수도료예기효과。
The 31.5 ~ 37.5 m section of No.1 return air incline shaft appeared concrete arch body cracking ,shedding ,concrete floor muster cracking and other damage phenomenon in Xiegou Coal Mine. In order to prevent further damage of shaft arch body collapse ,affecting the safety and normal production ,the mine chooses the wall after grouting reinforcement of shaft and surrounding rock and local bolt joint reinforcement scheme of wellbore are strengthened after the analysis of wellbore fail‐ure. T he expected effect is achieved.
