中国煤炭
中國煤炭
중국매탄
CHINA COAL
2014年
1期
50-53,57
,共5页
李猛%吴晓刚%姜海强%何琪%谭辅清
李猛%吳曉剛%薑海彊%何琪%譚輔清
리맹%오효강%강해강%하기%담보청
固体充填采煤%充实率%导水裂隙带%等价采高
固體充填採煤%充實率%導水裂隙帶%等價採高
고체충전채매%충실솔%도수렬극대%등개채고
solid backfill mining%filling rate%water flowing fractured zone%equivalent min-ing height
为了研究固体充填采煤充实率对导水裂隙带高度的控制作用,分析了固体充填采煤覆岩移动变形特征,借助等价采高理论套用经验公式对固体充填采煤不同充实率条件下导水裂隙带高度进行预计.运用数值模拟软件 UDEC 对不同充实率条件下导水裂隙带高度进行模拟,建立了固体充填采煤导水裂隙带高度预计的新方法,其结果与经验公式预计的结果相吻合.工业性试验表明:当煤层采高为3.5 m、采空区充实率为85%时,导水裂隙带发育高度在10 m左右,实测与预计结果基本一致.
為瞭研究固體充填採煤充實率對導水裂隙帶高度的控製作用,分析瞭固體充填採煤覆巖移動變形特徵,藉助等價採高理論套用經驗公式對固體充填採煤不同充實率條件下導水裂隙帶高度進行預計.運用數值模擬軟件 UDEC 對不同充實率條件下導水裂隙帶高度進行模擬,建立瞭固體充填採煤導水裂隙帶高度預計的新方法,其結果與經驗公式預計的結果相吻閤.工業性試驗錶明:噹煤層採高為3.5 m、採空區充實率為85%時,導水裂隙帶髮育高度在10 m左右,實測與預計結果基本一緻.
위료연구고체충전채매충실솔대도수렬극대고도적공제작용,분석료고체충전채매복암이동변형특정,차조등개채고이론투용경험공식대고체충전채매불동충실솔조건하도수렬극대고도진행예계.운용수치모의연건 UDEC 대불동충실솔조건하도수렬극대고도진행모의,건립료고체충전채매도수렬극대고도예계적신방법,기결과여경험공식예계적결과상문합.공업성시험표명:당매층채고위3.5 m、채공구충실솔위85%시,도수렬극대발육고도재10 m좌우,실측여예계결과기본일치.
In order to study the controlling influence of the filling rate of solid backfill mining on the height of water flowing fractured zone,the overlying rock movement and deformation characteristics are analyzed,and the height of the water flowing fractured zone with different fill-ing rates is estimated by equivalent mining height theory and empirical formula.The new way to estimate the height of water flowing fractured zone is established by using numerical simulation software UDEC to simulate the height of the water flowing fractured zone with different filling rates.The result is matching with that of the empirical formula.Industrial experiments show:the developing height of the water flowing fractured zone is about 10m with mining height of 3.5m and the filling rate of 85%.Measured and estimated results are basically the same.