煤矿安全2017，Vol.48Issue(7)：220-223,4.DOI:10.13347/j.cnki.mkaq.2017.07.059
特厚煤层综放采场矿压特征的埋深效应
Buried Depth Effect of Pressure Characteristics of Fully-mechanized Caving Stope in Super High Seam
摘要
Abstract
Based on theoretical analysis and numerical simulation technology,we systematically study the buried depth effect of pressure characteristics of full-mechanized caving stope in special thick coal seam with large mining height.The results show that in-situ stress,coal bearing pressure,the height and scope of roof strata entering into plastic yielding state,the advancing damage distance and range of bottom coal,top coal and roof,the vertical stress peak and the distance of peak stress ahead of working face will increase with the increase of buried depth gradually;at the same time,the sinking amount of top coal in the roof control area increases in logarithmic regularity with the increase of the buried depth.关键词
采矿工程/特厚煤层/综放开采/矿压特征/埋深效应Key words
mining engineering/thick coal seam/fully-mechanized top coal-caving mining/underground pressure characteristics/buried depth effect分类
矿业与冶金引用本文复制引用
常卫,季春旭,杨永康,康天合,侯永鹏..特厚煤层综放采场矿压特征的埋深效应[J].煤矿安全,2017,48(7):220-223,4.基金项目
国家自然科学基金资助项目(51404167) （51404167）
太原理工大学校基金团队资助项目(1205-04020102) （1205-04020102）
山西省基础研究资助项目(2014011035-2) （2014011035-2）
