摘要
根据1122工作面顶板条件,将上、下顺槽划分为砂岩顶板区段、泥岩顶板区段、砂质泥岩顶板区段,有针对性提出了相应的支护方案,顺槽断面收敛率下降,防止了顶板剧烈下沉。
based on the roof of 1122 face condition,the upper and lower section along the groove is divided into sandstone roof,mudstone roof sections, sandy mudstone roof sections, targeted put forward the corresponding support scheme, along the groove section convergence rate drop,to prevent the roof intense sinking.
出处
《江西煤炭科技》
2016年第4期23-24,29,共3页
Jiangxi Coal Science & Technology
关键词
顺槽支护
设计方案
应用
gateway support
Design scheme
application
