采矿与安全工程学报Issue(3)：413-417,5.
连续采煤机块段式开采矿压显现规律研究
The law of rock pressure in the stope with blocking mining by the continuous miner
摘要
Abstract
With the corner coal mining conditions in Wulanmulun Coalmine of Shendong Company as the engineering background, mining pressure characteristics under technological conditions of blocking mining by the continuous miner is researched numerically through the software of FLAC3D finite difference combined with on-the-spot pressure observation. The research finds that the use of complete management of roof caving method will, as the working face advances, make the gob area expand unceasingly, and thus the peak stress and stress of coal pillar between knife caving change drastically, with the stress concentration factor ranging from 2.2~2.7, and that the maximum vertical displacement position of the direct roof in the mined-out area will extend towards mining, which causes abscission layer of the direct roof off the main roof. The abscission layer becomes larger and larger and will collapse extensively in the triangular area formed by the headway and the roadway.关键词
连续采煤机块段式开采/完全垮落法/数值模拟/履带行走式液压支架Key words
block section of continuous miner/the fully caving method of roof/numerical simulation/crawler walking type hydraulic support分类
矿业与冶金引用本文复制引用
周茂普,曹胜根,江小军..连续采煤机块段式开采矿压显现规律研究[J].采矿与安全工程学报,2014,(3):413-417,5.基金项目
国家自然科学基金项目(51374197，50774078)；江苏高校优势学科建设工程项目；江苏省“青蓝工程“项目；煤炭资源与安全开采国家重点实验室自主课题项目(SKLCRSM12X06)；山西省青年科技研究基金项目(2012021022-2)中国煤炭科工集团太原研究院自立项目(M2012-13) （51374197，50774078）
