煤炭技术
煤炭技術
매탄기술
Coal Technology
2015年
11期
62-64,65
,共4页
大断面%沿空留巷%充填体%支护%围岩稳定
大斷麵%沿空留巷%充填體%支護%圍巖穩定
대단면%연공류항%충전체%지호%위암은정
large section%gob-side entry retaining%filling body%supporting%surrounding rock stability
以斜沟煤矿18503大采高综采工作面地质及生产技术条件为依据，通过理论分析、数值模拟和现场实测，分析了大断面沿空留巷充填体的稳定性规律及留设巷道支护技术。研究表明，大断面留巷充填体的稳定性受上覆坚硬顶板破断失稳规律的影响，而且动载作用明显，采用强度-应力双曲线关系可分析判断充填材料及充填体参数确定的合理性。现场应用对充填体及留设巷道进行了加强支护技术，实测表明取得了良好的留巷效果。
以斜溝煤礦18503大採高綜採工作麵地質及生產技術條件為依據，通過理論分析、數值模擬和現場實測，分析瞭大斷麵沿空留巷充填體的穩定性規律及留設巷道支護技術。研究錶明，大斷麵留巷充填體的穩定性受上覆堅硬頂闆破斷失穩規律的影響，而且動載作用明顯，採用彊度-應力雙麯線關繫可分析判斷充填材料及充填體參數確定的閤理性。現場應用對充填體及留設巷道進行瞭加彊支護技術，實測錶明取得瞭良好的留巷效果。
이사구매광18503대채고종채공작면지질급생산기술조건위의거，통과이론분석、수치모의화현장실측，분석료대단면연공류항충전체적은정성규률급류설항도지호기술。연구표명，대단면류항충전체적은정성수상복견경정판파단실은규률적영향，이차동재작용명현，채용강도-응력쌍곡선관계가분석판단충전재료급충전체삼수학정적합이성。현장응용대충전체급류설항도진행료가강지호기술，실측표명취득료량호적류항효과。
Based on geological conditions and production technology of 18503 large mining height fully-mechanized face in Xiegou coal mine, through theoretical analysis, numerical simulation and field measurement, analyzes stability the role of body for gob-side entry retaining and roadway retained supporting control technology in large section roadway. The results show that the stability of body is affected by the rules of breaking and instability of overlying hard roof, meanwhile effect of dynamic load is obvious, using the strength-stress hyperbola function can analyze and judge the rationality of fill material and determination of body parameters. Field application strengths supporting technology on body for gob-side entry retaining and roadway retained supporting, actual measurement shows to achieving good effect on retained roadway.
