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随着国民经济的发展,城市经济的繁荣,城市建设蓬勃发展,城市交通量日益增大,各大中城市的交通堵塞现象越来越严重,为此,各大中城市正着手加大城市基础设施的建设力度,逐步形成功能完善的路网结构,已解决交通拥挤问题。加快城市道路、修建城市立交和隧道工程等措施都是各地方政府解决燃眉之急的重要举措,其中城市隧道不仅可以完善路网结构,缩短城区之间的距离,有效地实现城市交通分流。但城市隧道的施工不同于山岭隧道,可以施工根据其所处环境和围岩地质情况灵活地实施多种爆破方式。城市隧道施工处在紧邻人口与建筑物密集的环境中,要杜绝飞石发生,尽可能的减少爆破产生的空气冲击波和震动波对居民建筑物的震动,以及噪音对居民生活的影响,确保爆破作业施工安全万无一失。
With the development of the national economy, the prosperity of the urban economy, the vigorous development of the urban construction, the increasing traffic volume in the cities and the increasingly serious traffic congestion in major cities, many major cities are beginning to increase the urban base Facilities construction efforts, and gradually form a fully functional road network structure, traffic congestion has been solved. Measures such as speeding up urban roads and constructing urban interchanges and tunneling projects are all important measures for local governments to solve urgent problems. Urban tunnels can not only perfect the road network structure, shorten the distance between urban areas, and effectively achieve urban traffic diversion. However, urban tunnel construction is different from the mountain tunnel, construction can be based on the surrounding environment and the rock surrounding the flexibility to implement a variety of blasting methods. Urban tunnel construction in close proximity to population and building-intensive environment, to prevent the occurrence of flying stone, as much as possible to reduce the impact of blasting blast and vibration waves on residential buildings and the impact of noise on the lives of residents to ensure that blasting Work construction safety foolproof.