中文摘要：

由于顶管工程在经济方面的优势以及控制周围环境水平的提升,而得到广泛应用,但目前顶管扰动特性方面的研究多数限于中小顶管,未考虑超大直径顶管的特殊性。对上海世博电力电缆隧道顶管施工进行了现场监测,并主要分析了水-土压力变化曲线,测试结果反映了超大直径顶管顶进5阶段的扰动特性。工程经验表明,超大直径长距离顶进成功的主要作用因素有3个：泥浆套作用、开挖面控制和姿态动态调整。最后对泥浆套在顶管中的形成过程以及扰动作用机制进行了研究,泥浆套在注入、泥膜形成以及整体发挥作用的过程中具备填充、支承、隔阻、润滑等作用。

英文摘要：

Owing to the economic advantage,the pipe jacking method has been used widely;the control of surrounding environment has also been promoted.But for the disturbance characteristics it is only researching on the medium and small pipe jacking;and it has no considering the particularity of super large diameter pipe jacking.Based on the in-situ monitoring of the Shanghai Expo Cable Tunnel construction,the curves of soil and water pressure are analyzed.The results show the disturbance characteristics for 5 stages during the propulsion.The engineering experiences show that three key parameters of long distance pipe jacking construction are slurry sleeve,stability control of excavation face and position dynamic adjustment.The slurry sleeve forming process and disturbance characteristics are researched;in the process of slurry injecting,slurry membrane forming and the slurry sleeve completion,the functions of the slurry sleeve are filling,supporting,deadening and lubricating,etc.