煤矿安全2017，Vol.48Issue(9)：58-61,65,5.DOI:10.13347/j.cnki.mkaq.2017.09.016
软弱煤层综放沿空留巷充填体参数实验研究
Experimental Study on Parameters of Filling Body of Gob-side Entry Retaining in Fully-mechanized Top-coal Caving Mining Face of Soft Coal Seam
朱文超 1史磊1
作者信息
- 1. 山西省自动化研究所,山西太原030012
- 折叠
摘要
Abstract
According to the special conditions in the deep and thick soft coal seam,the influence of different width of filling body beside the lane on the effect of gob-side entry retaining in the fully-mechanized top-coal caving mining was studied.In the engineering background of the wind lane in Wangzhuang Coal Mine 7101 working face,analog simulation experiments were done in the large scale test rig by selecting 11 different width of the backfilled wall from 2 m to 3 m.Through the analysis of the stress and displacement of each measuring point dta,the width of filling body was determined to be 2.5 m with regard to the best effect of the left lane.Through the experiment analysis,the interaction between the filling body and the surrounding rock of the fullymechanized top-coal caving mining coal roadway is divided into three stages:the early stage of the activity,the transition stage of the activity and the late stage of the activity.关键词
软弱煤质/充填体/综采放顶煤/沿空留巷/相似模拟Key words
soft coal/filling body/fully-mechanized top-coal caving mining/gob-side entry retaining/analog simulation分类
矿业与冶金引用本文复制引用
朱文超,史磊..软弱煤层综放沿空留巷充填体参数实验研究[J].煤矿安全,2017,48(9):58-61,65,5.
