软弱地层中盾构掘进姿态控制

Attitude Control of Shield Tunneling in Weak Stratum

软弱地层中掘进盾构姿态控制难度大,不良的盾构姿态不仅造成管片错台错缝、管片碎裂以及隧道渗漏水,同时会导致地层损失过大、地表沉降超标。论文总结了关于盾构俯仰角、回转角异常的处置措施,以期有效控制盾构姿态。

It is difficult to control the shield attitude in soft ground. Bad shield attitude will not only cause segment staggering, segment fragmentation and tunnel leakage, but also lead to excessive ground loss and excessive surface settlement. This paper summarizes the treatment measures for the abnormal elevation angle and rotation angle of the shield, so as to effectively control the shield attitude.