[III-270] Report on countermeasure for floor heaving deformation at Kanmuriyama Tunnel(Inbound line) of Chugoku Expressway
Keywords:The floor heaving deformation, Invert construction, by two-way traffic
Report on countermeasure for floor heaving deformation at Kanmuriyama Tunnel(Inbound line) of Chugoku Expressway.
It is serviced commencement in 1990 and constructed by the NATM method. The floor heaving deformation occured at the slate and fracture zone, and the amount of one is about 150mm. It is important to formulate the traffic operation such as road closed, because construction of invert in expressway during serviced commencement is needed to excavate the bottom. Overall width collective construction is possible by two-way traffic in outbound line. This report is a summary of the construction plans and points to be considered during the countermeasure.
It is serviced commencement in 1990 and constructed by the NATM method. The floor heaving deformation occured at the slate and fracture zone, and the amount of one is about 150mm. It is important to formulate the traffic operation such as road closed, because construction of invert in expressway during serviced commencement is needed to excavate the bottom. Overall width collective construction is possible by two-way traffic in outbound line. This report is a summary of the construction plans and points to be considered during the countermeasure.
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