【作者】 葛家良；

【Author】 Ge Jialiang (China Mining University,Xuzhou 221008,PRC)

【机构】 中国矿业大学；

【摘要】 谢桥矿东风井回风巷道围岩软弱,易膨胀崩解,强度低,胶结性差,亲水性强,变形量大,流变显著且持续时间长。本文介绍了翻修该巷道所采取的注浆方法及工艺。通过对巷道注浆前后位移量的观测和维护状态分析,证实注浆加固效果良好。本文还在分析注浆加固效果及其作用的基础上,提出了提高注浆质量的两种有效措施。更多还原

【Abstract】 The country rock around the return air course of Donfeng Well of Xieqiao Mine is weak and liable to expand and break.Its strength is low,its cementation poor, its hydrophilia strong,its deformation great,its rheology is obvious and sustains a long period of time.The article describes grouting method and technique adopted in the reconstruction of the tunnel.It is approved that grouting-reinforcing effect is fairly good after the amount of displacement was observed pre and after grouting the tunnel and the state of maintenance was analysed.This paper,on the basis of analysing groutinghardening effect and its function,provides two effective measures to improve grouting quality.更多还原