|
|
|
| Study on the moving rock law and the distribution of advanced support stress in large mining depth working face of Xinzhi Mine |
| Zheng Tianye |
| Xinzhi Mine, Huozhou Coal and Electricity Group, Huozhou 031412, China |
|
|
|
|
Abstract In order to master the stress distribution and overburden movement law during the mining operation of the No. 2 coal seam in Xinzhi Coal Mine, the distribution law of overburden zones and advanced bearing pressures in the working face were specifically analyzed. The overburden zones were distributed using theory, simulation and actual measurement. The pressure distribution of the advanced support was specifically analyzed using on-site measured analysis methods. The results showed that the development heights of the overburden collapse zone and fracture zone in the large mining depth working face were in the range of 17 ~ 25 m and 30 ~ 35 m respectively; the range of advanced bearing pressure in the working face was 50 m.
|
|
|
|
|
|
| [ 1 ] 刘中洋,刘 辉,宋增路. 大埋深工作面超前支承压力影响范围实测研究[ J ]. 煤矿机械,2018,39(11):56 - 57.
[ 2 ] 王文新,张锦宏. 大采高综采工作面侧向支承压力分布规律研究[ J ]. 煤炭科学技术,2017,45( S1 ):19 - 22,33.
[ 3 ] 张俊文,梁珠擎,钟 帅. 覆岩“三带”高度的相似模拟试验研究[ J ]. 煤炭技术,2016,35( 11 ):63 - 64.
[ 4 ] 张海荣. 较薄厚煤层采场覆岩“三带”划分理论计算与数值模拟研究[ J ]. 煤炭工程,2013,45( 9 ):83 - 86.
[ 5 ] 段伟华. 三道沟矿大采高工作面矿压显现规律及片帮控制技术研究[ D ]. 西安:西安科技大学,2019.
[ 6 ] 王仲伦. 大采高综采采场矿压显现规律与支架工作阻力数值模拟研究[ D ]. 太原:太原理工大学,2018. |
|
|
|