山西焦煤科技
山西焦煤科技
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SHANXI COKING COAL SCIENCE & TECHNOLOGY
2014年
10期
15-18
,共4页
准大采高%综放工作面%超前压力%矿压特征
準大採高%綜放工作麵%超前壓力%礦壓特徵
준대채고%종방공작면%초전압력%광압특정
Large mining height%Fully mechanized caving face%Advanced pressure%Mine pressure character-istic
本文以同煤集团云冈矿8212工作面地质条件为背景,对工作面矿压规律进行实测分析研究,结果表明:1)工作面支架平均工作阻力为2016.1 kN,占其额定工作阻力(7000 kN)的28.8%,该工作面支架的额定工作阻力可以满足顶板的管理要求。支架前后柱工作阻力分布较平均,能正常工作。2)工作面支架平均循环末阻力为3147.0 kN,占其额定工作阻力(7000 kN)的45.0%,该工作面平均循环末阻力主要分布区间为2800~3800 kN,即工作面支架的额定工作阻力完全可以支撑顶板。3)工作面超前支承压力作用范围在35~38 m 处,随工作面的逐步推进,其增幅也逐步增加。该结论可为类似条件下其他工作面开采过程中矿压显现规律的研究提供参考。
本文以同煤集糰雲岡礦8212工作麵地質條件為揹景,對工作麵礦壓規律進行實測分析研究,結果錶明:1)工作麵支架平均工作阻力為2016.1 kN,佔其額定工作阻力(7000 kN)的28.8%,該工作麵支架的額定工作阻力可以滿足頂闆的管理要求。支架前後柱工作阻力分佈較平均,能正常工作。2)工作麵支架平均循環末阻力為3147.0 kN,佔其額定工作阻力(7000 kN)的45.0%,該工作麵平均循環末阻力主要分佈區間為2800~3800 kN,即工作麵支架的額定工作阻力完全可以支撐頂闆。3)工作麵超前支承壓力作用範圍在35~38 m 處,隨工作麵的逐步推進,其增幅也逐步增加。該結論可為類似條件下其他工作麵開採過程中礦壓顯現規律的研究提供參攷。
본문이동매집단운강광8212공작면지질조건위배경,대공작면광압규률진행실측분석연구,결과표명:1)공작면지가평균공작조력위2016.1 kN,점기액정공작조력(7000 kN)적28.8%,해공작면지가적액정공작조력가이만족정판적관리요구。지가전후주공작조력분포교평균,능정상공작。2)공작면지가평균순배말조력위3147.0 kN,점기액정공작조력(7000 kN)적45.0%,해공작면평균순배말조력주요분포구간위2800~3800 kN,즉공작면지가적액정공작조력완전가이지탱정판。3)공작면초전지승압력작용범위재35~38 m 처,수공작면적축보추진,기증폭야축보증가。해결론가위유사조건하기타공작면개채과정중광압현현규률적연구제공삼고。
In this paper takes the geological conditions of 8212 working face in Datong coal mining group Yunga-ng coal mine as the background,analyses and researches the mine pressure regularity,the results show that 1)The average working resistance of supports is 2,016.1 kN,accounts for its rated working resistance (7 000 kN)28.8%, this rated working resistance can satisfy the requirement of roof management.The working resistance distribution of support column is average,can work normally.2)The average cycle end resistance of working face supports is 3 147.0 kN,accounts for its rated working resistance (7 000 kN)45.0%,mainly distributes in 2 800 ~3 800 kN, the rated working resistance can support the roof.3)The scope of advance abutment pressure is located in 35 ~38 m, with the gradually advancing of working face,its growing rate also gradually increase.The conclusion can provides a reference of mine pressure appearing laws research for other similar conditions in other working face mining process.