Analysis of Treatment and Prevention methods for Tunnel Arch Collapse
This paper introduces the construction practice of arch caving treatment in Yangxitou No.2 tunnel of the highway project from Minzhe to Xiadang Section of Shouning on Provincial Road S207.In view of the arch caving caused by the joint and crack development of tunnel surrounding rock and poor geological and hydrological conditions,this paper focuses on analyzing the causes of arch caving,the pre-vention methods of arch caving and a series of targeted measures for caving treatment.Combined with geological advance prediction,sur-rounding rock monitoring and measurement,real-time dynamic analysis of surrounding rock support,tracking support effect,in order to effectively prevent tunnel collapse.
Highway tunnelCollapse treatmentFault fracture zoneInitial support
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