煤矿安全2012，Vol.43Issue(2)：147-150,4.
坚硬粘土层对薄基岩综放工作面矿压显现的影响
The Influence of Hard Clay Layer on Strata Behavior of Fully-Mechanized Top Coal Caving Face in Thin Bedrock
尉瑞 1马震 1张亮 1邹永洺1
作者信息
- 1. 中国矿业大学矿业工程学院,江苏徐州221116
- 折叠
摘要
Abstract
In order to study the influence of the existence of hard clay layer on pressure behavior in the fully mechanized top-coal caving face in thin bedrock,and take Sima coal mine No.1101working face as the research target,the theoretical analysis,numerical simulations and field measurement method were adopted to research overburden strata structure and pressure behavior of working face in thin bedrock.Results show that the existence of clay layer to a certain extent bears the load of overlying sand layer,and formed the more stable structure combined with thin bedrock.With clay layer thickness increasing,support pressure peak forward transfer and decreased strength of pressure behavior.Guaranteeing the early safe mining in No.1101 mining face and good economic efficiency was obtained.关键词
粘土层/薄基岩/综放工作面/矿压显现/支撑压力Key words
clay layer/thin bedrock/fully-mechanized top coal caving face/pressure behavior/bearing pressure分类
矿业与冶金引用本文复制引用
尉瑞,马震,张亮,邹永洺..坚硬粘土层对薄基岩综放工作面矿压显现的影响[J].煤矿安全,2012,43(2):147-150,4.
