Research and Application on Freeing from Pipe Stuck Technology of Large-diameter and Long-distance Pipe Jacking Construction in Complex Geology

Abstract

Pipe jacking technology is mainly applied to road-crossing place where excavation is not applicable. So far, there is no mature experience in domestic being appropriate for long-distance and large-diameter pipe jacking passing through mountainous area with complicated geology, where obstruction problem like pipe stuck often happens [1]. This thesis does analyses on the reason for long-distance and large-diameter pipe jacking in mountainous area getting stuck and does discussion on freeing from pipe stuck. Combining with engineering examples, these methods have been put into practical application, which achieves good effects and socioeconomic benefits. It also provides guidance and reference for similar projects.