注水平衡法在非开挖施工中的应用  

Application of Watering Balance Method in Trenchless Technology

作　　者：吴礼林[1] 

机构地区：[1]中国地质科学院勘探技术研究所,河北廊坊065000

出　　处：《探矿工程（岩土钻掘工程）》2008年第6期71-72,共2页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：首先对河北廊坊天堂河穿越工程的概况和施工难点进行了介绍;然后针对工程需要提出了注水平衡法,并对其进行了理论分析;最后对施工过程和结果进行了分析介绍。施工实践证明了理论分析的正确性,且表明:非开挖施工时,在管道中注入适量水能平衡管道所受浮力,减小管道所受摩擦力,能达到减小管道回拖力的目的。In this paper, the general situation and difficulties of the Tiantang River crossing project are introduced firstly; then Watering Balance Method WBM is put forward with theoretical analysis on it; finally, the construction process and resuits of the whole project are introduced and analyzed. The construction practice proves the theoretical analysis is correct and reveals that during the construction process, buoyancy force can be balanced by injecting water into the pipeline to decrease its friction and pulling force.

关 键 词：定向钻进 非开挖 铺管 导向孔 注水平衡法 

分 类 号：P634.7[天文地球—地质矿产勘探]