Research on Treatment Technology of Mud and Water Inrush in Water-rich Fracture Zone of Mountain Tunnel
During the construction of an expressway high-altitude mountain tunnel crossing the water-rich fracture zone of active faults,a large area of mud and water inrush occurred many times.In order to safely and effectively treat and pass through the fault fracture zone,combined with the previous construction technology experience,according to local conditions,the general idea of"exploration,drainage,consolidation and excavation"is summarized,and the scientific grouting excavation method of"curtain grouting+horizontal jet grouting pile+advanced middle pipe roof+micro-benching excavation"is implemented,which has achieved good treatment effect.The research content of this paper can provide experience for similar tunnel disaster treatment.
mountain tunnelwater-rich fracture zonemud and water inrushcurtain groutingjet grouting pilepipe roof
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