非开挖定向钻进牵引拖拉埋管技术在南水北调工程中的应用

济宁市截污导流工程是南水北调东线干线的重要工程,该工程从济宁市污水处理厂铺设管道5.9 km,再利用明渠输水,把中水引到蓄水区,确保南水北调调水期间中水不进入干线。其中管道施工需穿越济宁南部的老运河、洸府河。因洸府河为行洪河道,采用非开挖定向钻进拖拉埋管技术,不影响河道原有功能,较好地解决了管道穿越河道问题。结合该工程实例,介绍了非开挖定向钻进牵引拖拉埋管施工技术。

Application of Pipe Traction and Burying Technology in Trenchless Directional Drilling in South to North Water Transfer Project

Jining city sewage interception diversion is an important project for south to north water transfer trunk in the east line, 5.9kin pipelines should be laid from the Jining City sewage treatment plant first, then by the open-channel hydraulic system, to diverse reclaimed water into the water storage area to ensure no reclaimed water entering the trunk during south to north water transfer. The pipeline is constructed through the old canal and Guangfu River of southern Jining. Guangfu River is a flood channel, pipe traction and burying technology in trenchless directional drilling was used without affecting the original function of the channel. Combined with the engineering example, this paper introduces the pipe traction construction technology in trenchless directional drilling.