摘要
目前最流行的非开挖铺管技术为导向钻进法 ,但这种施工法在流砂地层施工时容易发生塌孔。为了解决这一问题 ,设计了一种燕尾形扩孔钻头 ,并提出了相应的工法 。
Trenchless technology expands rapidly in China. At present, the most popular trenchless pipeline installation method is guided boring, but in the guided boring cave-in of the borehole wall eternally are encountered in quicksand formation. Searching for solutions, the author has designed a Swallow-tail-back reaming bit, in addition grouting and mud protection are recommended before and during pipe installation in quicksand formation respectively.
出处
《探矿工程（岩土钻掘工程）》
2005年第1期32-34,共3页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
非开挖
铺管
导向钻进
流砂地层
no-dig
pipelaying
controlled directional drilling
quicksand formation
