陕京三线永定河隧道爆破振动检测与控制研究

Blasting Vibration Detection and Control for the Tunneling Under Yongding River on the Shanxi-Beijing Third Gas Line

以陕京三线永定河隧道爆破工程为依托,开展隧道爆破施工对邻近房屋振动安全的分析与控制研究。通过现场爆破振动远程实时监测试验与理论分析,获得了适用于该隧道区域的爆破振动速度传播与衰减规律,讨论了隧道附近的爆破振动特性及对周边建筑结构的安全影响,提出了对偏远山区更应关注爆破振动对人及环境的惊扰。

Based on Yongdinghe river tunnel blasting project on the Shanxi-Beijing third gas line,analysis and research are carried out for security influence of tunnel blasting on adjacent building.Through on-site blasting vibration remote real-time monitoring tests and theoretical analysis of blasting vibration,the study finds out that the PPV attenuation law and vibration transmission speed applicable to the area of the tunnel.And it discusses the characteristics of nearby tunnel blasting vibration and its effect on the safety of the surrounding structure.Finally,the paper proposes more attention should be paid to the blasting vibration disturbance to the people and the environment in remote mountain area.