摘要
针对黄玉川煤矿6上煤层首采综放工作面的矿压显现规律进行了模拟实验研究.研究表明：基本顶初次来压步距40～45 m,周期来压平均步距22.4 m;来压整体属于“较强烈”;综放工作面超前支护距离应达到煤壁前方40 m范围;影响顶煤采出率的主要区域是距煤层顶板3m范围内的顶煤.
Laws of strata behavior were simulated experimentally for the first mining fully mechanized top coal caving face at 6up seam in Huangyuchuan coal mine. The research has showed that the first weighting interval was from 40 m to 45 m for the basic roof, and the periodic weighting average interval was 22.4 m. The pressure were overall relatively strong. The advanced support distance should reach 40 m range in front of the coal wall for the fully-mechanized top coal caving face. The main area that affected rate of top coal mining was the top coal in range of 3 m from the 6up coal seam roof.
出处
《煤炭技术》
CAS
北大核心
2016年第10期13-15,共3页
Coal Technology
基金
陕西省教育厅科研计划项目资助(13JS064)
陕西省重点科技创新团队计划项目(2013KCT-16)
关键词
矿压显现
初次来压
周期来压
超前支承压力
strata behavior
first weighting
periodic weighting
advanced support pressure
