Based on the fierce surrounding rock stress in withdrawing roadway in the ending mining of the working face, including multiple horizontal-vertical roadway, the overlying stress led to the difficult support. The support problem of 308 withdraw roadway in Lijiata Mine was taken as study object, with theoretical analysis, support design and engineering experiment, the combined support technology of rock bolt + anchor cable + double deck metal mesh + floor spray concrete was put forward. The industrial experiment on the site showed that the maximum deformation of roof and floor was 150 ~ 185 mm, the two sides surrounding rock deformation 160 ~ 180 mm, the support met the needs of safe withdrawing of the roadway.
侯殿坤1，訾凤兵1,2，卜庆为1. 李家塔煤矿综采308工作面回撤通道支护技术研究[J]. 煤炭与化工, 2018, 41(1): 5-9.
Hou Diankun1, Zi Fengbing1,2, Bu Qingwei1. Study on withdrawing roadway support technology of 308 fully mechanized working face of Lijiata Mine. CCI, 2018, 41(1): 5-9.
