Analysis on the Deformation Monitoring of Baihe Tianchi Tunnel
In order to optimize the construction organization design,guide the site construction,and ensure the safety of tunnel construction,this paper takes Baihe Tianchi tunnel in the second bidding section of Meipu connecting line engineering as the research object.By arranging multiple observation points,the vault settlement,horizontal convergence and surface settlement of ZK2+325 section are monitored,and the blasting vibration velocity and frequency at different observation points are measured by blasting vibration detector.The research shows that the vault settlement,horizontal convergence and surface settlement at different observation points in the monitoring section are consistent,and the deformation mainly occurs around April 28th;the cumulative deformation and deformation rate at each measuring point are within the design control value,and the blasting vibration velocity at each measuring point does not exceed the national standard,indicating that the construction scheme and supporting measures are effective and safe.
NETL
NSTL
万方数据
