Attitude Adjustment Technology of Rectangular Pipe Jacking

The factors that affect the posture control of long distance and large section rectangular pipe jacking are very complex, including engineering geological factors, errors of pipe jacking supporting facilities, difficulties in controlling the posture of pipe jacking during the jacking process, etc., which greatly increases the construction risk of long distance and large section pipe jacking. Suzhou Cheng Bei Road Comprehensive Pipe Rack Project is a long distance and large cross-section rectangular pipe jacking construction project. In the process of pipe jacking and launching, aiming at the attitude control during jacking, this process has taken comprehensive control measures, including reinforcement and precipitation during the starting process, drainage during construction, axis control, deflection control, attitude control during jacking and launching, and “bump prevention”.