北风井地面基础沉降注浆加固技术研究

Study on Grouting Reinforcement Technology for Ground Subsidence of North Wind Shaft

新巨龙公司北风井自2013年5月份投入使用后,风井井筒、风道和通风机房周围地面逐渐开始下沉。地面基础的沉降可能会导致风道漏风或塌陷,严重危及北风井正常使用。因此,采用袖阀管注浆法对北风井地面沉降区注浆加固,解除北风井沉降风险,实现安全生产。

After the north wind shaft of Xinjulong Energy Co.,Ltd.was put into operation in May 2013,the ground around the shaft,air duct and ventilation room began to sink gradually.The subsidence of the ground foundation may lead to air leakage or collapse of the air duct,which seriously endangers the normal use of the north wind shaft.Therefore,the sleeve valve tube grouting method is used to reinforce the ground subsidence area of the north air shaft,relieve the risk of the north air shaft subsidence,and achieve safe production.