沿底掘留厚顶煤顺槽巷道围岩控制技术  

Control Technology of Surrounding Rock in Roadway with Thick Roof Coal along Bottom Excavation

作　　者：赵玺 Zhao Xi(Shanxi Gaohe Energy Co.,Ltd.,Shanxi Changzhi 047100)

机构地区：[1]山西高河能源有限公司,山西长治047100

出　　处：《山东煤炭科技》2020年第7期14-16,共3页Shandong Coal Science and Technology

摘　　要：为了解决沿底掘留厚顶煤顺槽巷道围岩控制难题,以高河矿W1302回风顺槽为地质背景,通过及时对巷道顶板和迎头进行临时支护、加密锚杆(索)、破碎顶板注浆加固的方法实现了巷道围岩稳定。现场试验表明:顺槽巷道围岩变形和离层得到控制,最大顶板下沉量为91mm,最大两帮移近量为156mm,顶板离层最大26mm。In order to solve the problem of surrounding rock control of roadway driving along the bottom and retaining thick top coal,taking W1302 return air gateway of Gaohe Coal Mine as geological background,the surrounding rock stability of roadway was realized by means of temporary support for roadway roof and head-on,densification of bolt (cable) and grouting reinforcement of broken roof.The field test shows that the deformation and separation of the surrounding rock of the gateway roadway are controlled,the maximum roof subsidence is 91mm,the maximum two sides moving in is 156mm,and the maximum roof separation is 26mm.

关 键 词：厚顶煤 巷道 支护 加固 

分 类 号：TD353[矿业工程—矿井建设]