锚杆支护技术在某矿的应用

ccording to the problems of high cost ,process complex and labor intensity used U shaped steel support roadway in Yuzhou mining areas,bolt support was used first time for test. Through UDEC numerical simulation to analysis the surrounding rock deformation law of displacement, and concludes that the changes and the distribution characteristics of the plastic zone, and through the field industrial test, during mining subsidence 38 mm maximum roof, two sides closer to 52 mm, top of the maximum stress 92 kN, sides anchor maximum force 62 kN.Using bolt support made deformation smaller and effectively reduce roof integrity of surrounding rocks deformation and guarantee the stability of surrounding rock of the safety mining and obtain good economical.