矿业安全与环保
礦業安全與環保
광업안전여배보
MINING SAFETY & ENVIRONMENTAL PROTECTION
2014年
3期
71-73,77
,共4页
大采高%综采放顶煤工作面%矿压显现规律%周期来压%支护
大採高%綜採放頂煤工作麵%礦壓顯現規律%週期來壓%支護
대채고%종채방정매공작면%광압현현규률%주기래압%지호
large mining height%fully mechanized top coal caving face%ground behavior law%periodic weighting%support
采用现场监测的方法对某矿大采高综采放顶煤601首采工作面矿压显现规律进行监测,通过对监测数据进行分析,揭示了该矿601综采工作面的矿压显现规律,得出该工作面的初次来压步距平均为35 m左右;周期来压步距为22.95~27.20 m,平均为25.2 m,来压时间为2 d。该工作面直接顶呈现分层垮落:下部泥岩先垮落,上部粗砂岩直接顶后垮落,初次垮落步距16.75 m左右。研究结果对该矿其他工作面开采设计和巷道、切眼的支护参数优化设计具有参考价值。
採用現場鑑測的方法對某礦大採高綜採放頂煤601首採工作麵礦壓顯現規律進行鑑測,通過對鑑測數據進行分析,揭示瞭該礦601綜採工作麵的礦壓顯現規律,得齣該工作麵的初次來壓步距平均為35 m左右;週期來壓步距為22.95~27.20 m,平均為25.2 m,來壓時間為2 d。該工作麵直接頂呈現分層垮落:下部泥巖先垮落,上部粗砂巖直接頂後垮落,初次垮落步距16.75 m左右。研究結果對該礦其他工作麵開採設計和巷道、切眼的支護參數優化設計具有參攷價值。
채용현장감측적방법대모광대채고종채방정매601수채공작면광압현현규률진행감측,통과대감측수거진행분석,게시료해광601종채공작면적광압현현규률,득출해공작면적초차래압보거평균위35 m좌우;주기래압보거위22.95~27.20 m,평균위25.2 m,래압시간위2 d。해공작면직접정정현분층과락:하부니암선과락,상부조사암직접정후과락,초차과락보거16.75 m좌우。연구결과대해광기타공작면개채설계화항도、절안적지호삼수우화설계구유삼고개치。
Monitoring was conducted on the ground behavior law in 601 fully-mechanized first-mining caving face with large mining height in a mine by using the site monitoring method. Through the analysis of the monitoring data, the ground behavior law of 601 fully-mechanized face was revealed, and it was found that the mean distance of the first weighting in this face was about 35 m, the mean distance of the periodic weighting was 22. 95~27. 20 m, 25. 2 m on an average, and the weighting time was 2 days. The immediate roof of the face caved layer by later, the lower mudstone layer caved first, and then the upper grit layer, the distance of the first caving was about 16. 75 m. This research result has a reference value for the mining design of other faces and the optimization design of support parameters of roadways and starting cuts in this mine.