山东煤炭科技2025，Vol.43Issue(3)：23-26,4.DOI:10.3969/j.issn.1005-2801.2025.03.005
大采高综采工作面回撤通道围岩破坏特征及控制技术研究
Research on Failure Characteristics and Control Technology of Surrounding Rock in Withdrawal Channel of Large Mining Height Fully Mechanized Mining Face
张世锐 1史宏宝 1刘晓龙1
作者信息
- 1. 山西铺龙湾煤业有限公司,山西 大同 034400
- 折叠
摘要
Abstract
In response to the hidden dangers such as deformation of the withdrawal channel,obstruction of equipment withdrawal and others in the large mining height fully mechanized mining face,taking the 5206 working face of Pulongwan Coal Industry as the engineering background,a withdrawal channel support scheme is designed.Numerical simulation shows that as the hydraulic support of the working face withdrew,the plastic zone of the withdrawal channel gradually expanded,and the developmental height and depth of the plastic zone on the side of the goaf remained stable at 6.5 m and 5.0 m,respectively.The developmental height and depth of the plastic zone on the right side of the channel remained stable at 6.5 m and 4.5 m,respectively.The plastic zone of the roof gradually developed from both ends to the center,and the final height remained stable at 4.5 m.After the excavation and support of the withdrawal channel in the 5206 working face are completed,the maximum displacement amount of the roof and floor of the withdrawal channel and the withdrawal channel connected roadway are 284.6 mm and 245.3 mm,respectively.The actual measurement data further confirms the effectiveness of the support scheme.关键词
回撤/通道/支护Key words
withdrawal/channel/support分类
矿山工程引用本文复制引用
张世锐,史宏宝,刘晓龙..大采高综采工作面回撤通道围岩破坏特征及控制技术研究[J].山东煤炭科技,2025,43(3):23-26,4.
