长大隧道施工高压进洞供电技术研究

Research on High Voltage Power Supply for Long Tunnel Construction

由于长大隧道施工通常在偏远地区,原低压进洞供电方式不能满足施工用电要求,结合关角隧道施工供电,通过对比分析,研究高压进洞技术,确定变压器容量和导线规格,并对线路建设进行了详细论述。结果证明:采取高压进洞的方式使施工用电达到预期效果,保证了施工进度,对类似长大隧道施工供电有借鉴意义。

Given that long tunnels normally locate in remote area and the original low voltage power supply couldn＇t meet the construction requirements, high voltage power supply at the entrance was proposed after the comparison and analysis of power supply of Guanjiao tunnel. The transformer capacity and wire specifications were determined, and the circuit construction was discussed. The result shows that with high voltage power supply, the construction progress is guaranteed as expected.