Roof bolting in roadway retaining along gob with strata blasting

Strata stress distribution and roof moving characters and rock deformation of roadway retaining along gob Control, is introduced in this paper. The theory with strata blasting is referred. The theory is used to design roof support in roadway retaining along gob in Mine Chengshan seam No23 faceR7. The loading to control, construction technology and technical requirement is pointed out. Field test was held, The test results show that strata blasting is effective and feasible technology roof control in roadway retaining along gob.