超长水工隧洞 TBM 法开挖施工供电方法探讨

摘要

Full section rock tunnel boring machine is generally used for excavating long and large tunnels.Since the whole machine has high power and long power supply distance,and construction environment in the tunnel is worse,problems of voltage drop,relay protection and power consumption safety are fully considered during the design of construction power supply system.The condition is introduced in the paper.%全断面岩石隧道掘进机一般用来开挖长大隧洞，由于整机功率很大、供电距离长且洞内施工环境较差，因此在施工供电系统设计时要充分考虑电压降问题、继电保护问题、用电安全问题。本文对此加以介绍。