To solve the problem of large deformation of surrounding rock in the mining roadway affected by faults,taking the F23 fault affected area in the 2605 transportation roadway of A Coal Mine in Shanxi Province as the background,the deformation characteristics of surrounding rock and the reasons for anchor rod failure under the original anchor mesh support conditions of the transportation roadway were analyzed,and a targeted approach was proposed to control the deformation of surrounding rock using full anchor cables.After on-site application,the serious deformation of the surrounding rock and the large subsidence of the roof in the F23 fault affected area of the 2605 transportation roadway were well solved.The maximum deformation of the roof and two sides were controlled at 66 and 180 mm respectively,and the anchor cables did not fail,achieving effective control of the deformation of the surrounding rock in the mining roadway in the fault affected area.
关键词
回采巷道/断层/破碎岩体/全锚索支护
Key words
mining roadway/fault/fragmented rock mass/full anchor cable support
维普
万方数据