High strength supporting technology and application of water silo in 12th mining area of Heilong Coal Industry
In view of the problems of anchor cable shear,large dilatation deformation of two sides,shear breakage of side bolts and seri-ous floor heave in the mudstone section near the water silo in the 12th mining area of Heilong Coal Industry,the surrounding rock con-trol technology of the water silo roadway in the 12 th mining area was studied by using the methods of field investigation,theoretical anal-ysis,numerical simulation and field industrial test.Based on the analysis of the characteristics of ore pressure and the causes of deforma-tion and instability of water silo mudstone section in the 12th mining area,the high strength supporting technology was proposed and the industrial test was carried out in the field,which effectively controlled the large deformation of surrounding rock of water silo roadway in the 12th mining area,and obtained good surrounding rock control effect,ensuring the normal use of mine water silo.
soft rock roadwaywater silo supportingcombined supportingnumerical simulationfield experiment
万方数据
维普
