城市轨道交通大跨浅埋暗挖隧道爆破振动监测控制技术

Monitoring and Controlling Technology for Blasting Vibration of Large-span Shallow Covered Tunnel in Urban Rail Transit

爆破地震效应是工程爆破产生的主要危害之一。为保证工程爆破时爆区周围建筑物、基础设施等的安全运行,对爆破的地震效应进行实测和振动效应影响评价十分必要。阐述了地下暗挖大跨断面隧道施工中的爆破监测的应用与作用,将爆破振动对周边建筑物的影响进行了研究总结。在建筑物的安全保证前提下,为施工提供了有利条件,充分体现了爆破振动监测在新奥法施工中的重要性。

The vibration is the main hazards of engineering blasting.In order to ensuring the safe operation of surrounding buildings and infrastructure,it is necessary to monitor and evaluate the blasting vibration effect.The application and function of blasting monitoring is introduced during construction of large-span shallow covered tunnel.And the influence of blasting vibration to surrounding buildings are researched and summed.The technology provides favorable conditions to construction under the precondition of ensuring buildings safety which proves the important of blasting vibration monitoring in new Australian tunneling method.