煤矿安全2019，Vol.50Issue(7)：254-258,5.DOI:10.13347/j.cnki.mkaq.2019.07.060
固体充填开采矿压显现特征监测及数值模拟
Numerical Simulation and Monitoring of Pressure Characteristics of Solid Filling Mining
郑训臻 1王岩 2赵海波 2成之祥3
作者信息
- 1. 长春建筑学院 土木工程学院,吉林 长春 130607
- 2. 煤科集团沈阳研究院有限公司,辽宁 抚顺 113122
- 3. 同煤集团王村煤业公司 机掘四队,山西 大同 037003
- 折叠
摘要
Abstract
To study the characteristics of overburden failure and stress field distribution in filling mining, the T6001 filling working face of Xinyuan Coal Mine is used as the engineering background. The pressure monitoring of the working face is monitored by the hydraulic monitoring of the hydraulic pressure sensor. The FLAC3D software was used to simulate the filling and slump mining process to analyze the overburden failure and stress field distribution. The results show that the resistance curve of the bracket shows a trend of high at both ends and low in the middle, which reflects the process of supporting the roof from small to large after the filling and compaction of the filling body; the roof failure and stress distribution of the filling mining of the goaf is similar to that in caving mining, with the increase of the area of the goaf, the control effect of the filling body on the overburden activity is gradually enhanced. The peak value of the final filling mining is about 49 MPa, and the height of the overburden is 3.5 m, which is 10% and 71.5% lower than caving mining respectively, and filling mining effectively reduces the extent of mine pressure.关键词
固体充填开采/现场监测/矿压显现/覆岩破坏/数值模拟Key words
solid-filled mining/on-site monitoring/mine pressure manifestation/overburden destruction/numerical simulation分类
矿业与冶金引用本文复制引用
郑训臻,王岩,赵海波,成之祥..固体充填开采矿压显现特征监测及数值模拟[J].煤矿安全,2019,50(7):254-258,5.
