山东煤炭科技
山東煤炭科技
산동매탄과기
Shandong Coal Science and Technology
2015年
z1期
72-74
,共3页
火成岩侵蚀%软弱%不稳定煤层%综采面%矿压规律
火成巖侵蝕%軟弱%不穩定煤層%綜採麵%礦壓規律
화성암침식%연약%불은정매층%종채면%광압규률
igneous rock erosion%soft%unstable coal seam%mechanized mining face%strata behavior regularity
针对杨营煤矿3505综采面矿压规律进行了全面的实测研究，通过对现场监测数据的提取、分析与处理，初步掌握了火成岩侵蚀条件下不稳定煤层综采工作面的矿压显现基本规律、支架载荷分布特点及支承压力分布特征，确定了工作面初次来压步距约为33 m，周期来压步距约为5 m，合理的超前支护距离是52.5 m。
針對楊營煤礦3505綜採麵礦壓規律進行瞭全麵的實測研究，通過對現場鑑測數據的提取、分析與處理，初步掌握瞭火成巖侵蝕條件下不穩定煤層綜採工作麵的礦壓顯現基本規律、支架載荷分佈特點及支承壓力分佈特徵，確定瞭工作麵初次來壓步距約為33 m，週期來壓步距約為5 m，閤理的超前支護距離是52.5 m。
침대양영매광3505종채면광압규률진행료전면적실측연구，통과대현장감측수거적제취、분석여처리，초보장악료화성암침식조건하불은정매층종채공작면적광압현현기본규률、지가재하분포특점급지승압력분포특정，학정료공작면초차래압보거약위33 m，주기래압보거약위5 m，합리적초전지호거리시52.5 m。
According to the ground behaviors of the No 3505 mechanized mining face of Yangying Mine, a full site measurement research was conducted with extraction, analysis and processing of the data from site research. The rock pressure behavior law, abutment pressure distribution and load distribution characteristics of support in the mechanized caving mining face with igneous rock erosion under the condition of unstable coal seam. It’s identiifed that the ifrst weighting step distance is about 33m, the periodic weighting step distance is about 5m, and the reasonable advance support distance is 52.5m.
