华东某矿井经历了两次井壁破裂灾害,均采用地面注浆的方法延长矿井使用年限。通过对两次地面注浆的注浆压力、井壁应变响应及井塔周围地表标高变化规律的比较分析,得出首次注浆较2次注浆地层响应较快、浆液在地层中流动性较弱、井壁应变缓释量及井塔周围地表抬升较大。 East China mine has experienced two borehole rupture disasters, are grouting method to extend the life of the mine. Through the comparison of the grouting pressure, the strain response of the borehole and the surface elevation around the well tower, the results show that the response of the first grouting is faster than that of the second grouting, and the fluidity of the slurry in the formation is more Weak, wellbore strain and sustained release of surface uplift around the tower larger.