ANCHOR BOLTING METHOD FOR ENHANCING ROOF STABILITY USING REINFORCED ROOF AND SIDE OF COAL ROADWAY

摘要

An anchor bolting method for enhancing roof stability using reinforced roof and sides of a coal roadway comprises: dividing a roof (2) of a roadway (1) into different regions; analyzing rock core information of the respective regions to obtain information about rock mass intactness of the respective regions of the roof (2); and determining, by means of analyzing test results of the respective regions, rock mass quality indices for the respective regions of the roof (2), wherein if the rock mass quality index of one region of the roof (2) is greater than a preset value, a plurality of anchors or anchor cables are uniformly and vertically arranged within said region to specifically enhance supporting performance, and a plurality of anchor bolts are uniformly and vertically arranged within regions corresponding to two sides (3) of the coal roadway.