长大可溶岩段落隧道施工关键技术浅析

On analysis of key techniques for construction for long lava tunnels

结合贵南高铁六座重难点隧道之一的独山一号隧道设计与施工,根据其穿越的带状地质情况,分析了长大可溶岩隧道存在的潜在风险和难度,研究了可溶岩段落隧道衬砌构造设计关键技术,提出了长大可溶岩隧道施工组织关键技术及超前地质预报实施关键技术,为后续长大可溶岩隧道施工管控提供了一种方法。

Combining with the design and construction for Dushan No.1 Tunnel,one of the most difficult tunnels among the six tunnels for Guiyang-Nanning High-speed Railway,the paper analyzes the potential risks and difficulties for the long lava tunnel based on its striped geological circumstances,researches the key techniques for designing the lining structure at the lava tunnels,and points out the key techniques for the construction organization of the long lava tunnels and the key techniques for the advanced geological forecasting,so as to provide one method for the management and control over the long lava tunnels.