水平定向钻技术在公路隧道中心水沟修复中的应用

Application of Horizontal Drilling Technology in Central Ditch Repairing of Highway Tunnel

隧道中心水沟失效会造成路面渗水病害,特别是北方地区冬季结冰后,将严重影响行车安全,传统施工方法需开挖路面,交通中断,无法满足保通要求。论文以G30连霍高速公路天水甘泉隧道中心水沟疏通工程为例,分析了该隧道中的主要病害及成因,概括出水平定向钻技术技术的优势,介绍了该技术应用在疏通公路隧道中心水沟施工中的施工工艺、方法等。

The failure of the central ditch ofthe tunnel will cause the water seepage disease of the road surface,especially after the winter ice in the northern region,which will seriously affect the driving safety.The traditional construction method needs to excavate the road surface and interrupt the traffic,which can not meet the requirements of the traffic guarantee.This paper takes G30 Lianhuo Highway Tianshui Ganquan Tunnel central ditch dredging project as an example,analyzes the main diseases in the tunnel and causes,summarizes the advantages of horizontal directional drilling technology,introduces the technology applied in highway tunnel central ditch dredging construction technology,methods,etc..