摘要
隧道开挖爆破过程中,一部分能量会以地震波的形式向四周扩散,当地震波能量达到一定程度时,会引起爆区范围内建筑物的破坏。爆破振动与地震波传递介质、炸药量、隧道施工方案等多种因素有关。以宜巴高速公路中家湾隧道爆破振动对500kV三江I回线路94号杆塔塔基影响为例,从地质条件、施工方法、爆破过程3个方面对塔基的安全稳定进行分析。
In the process of tunnel excavation blasting, a part of the energy will spread to the surrounding in the form of seismic waves. When the wave energy reach to a certain extent, it will cause damage of the constructions within the blasting area. Blasting vibration is related to the seismic wave propagation medium, the amount of explosives, tunnel construction methods and other factors. In the paper, taking Zhong Jiawan tunnel as an example, the stability of tower foundation is analyzed from the three aspects of geological conditions, construction method and blasting process.
出处
《交通科技》
2013年第5期94-96,共3页
Transportation Science & Technology
关键词
公路隧道
爆破振动
安全评价
监测
highway tunnel
blasting vibration
safety evaluation
monitor
