劈裂注浆技术在城市淤泥质软流塑地层中应用

The application of hydrofracture grouting in urban soft flowing mucky ground

结合南京地铁二号线暗挖段过淤泥质软流塑地层施工经验,叙述了在淤泥质软流塑地层劈裂注浆原理和劈裂注浆工艺,对劈裂注浆施工中浆液选择进行对比试验,对注浆施工各环节注意事项及相应采取的措施进行了详细叙述,为今后通过城市软流塑地层暗挖施工提供技术参考。

In this paper,on base of Nanjing metro line No.2 soft soil underground excavation construction experience,give a brief description of the soft flowing mucky ground construction theory and the hydrofracture grouting process.Aslo give a comparative test on the construction of the hydrofracture grouting in the slurry,construction of all aspects of the grouting and the corresponding notes detailing the measures taken,give technical information for the city soft flowing mucky ground tunnel construction.