雁崖煤矿8304工作面沿空留巷条件下切眼后方硐室支护设计研究

Study on Design of Chamber Supporting Behind Cutting Hole under Condition of Gob-side Entry Retaining in 8304 Face of Yanya Coal Mine

以同煤集团雁崖煤矿三盘区东翼8304工作面的切顶沿空留巷支护实践为基础,在掌握顶板岩性及顶板切缝深度等相关资料的基础上,针对切眼后方倒车硐室的支护设计展开研究,选用恒阻锚索和单体支柱对受采动影响条件下硐室顶板进行补强支护。

Based on the practice of the gob-side entry retaining in the 8304 face,which is located on the panel 3 in Yanya mine,on the basis of mastering the lithology of roof and the depth of cutting crack,studies on the astern chamber supporting behind cutting hole,and selects the constant- resistance anchor and single pillar to supplement the support of chamber＇s roof to against mining pressure.