盾构法施工隧道衬砌管片上浮的产生机理及控制措施探究

Study on the Mechanism and Control Measures of Floating Lining Segment in Shield Tunneling Construction

管片上浮是开挖隧道围岩与管片衬砌外壁间隙内存在的地下水、浆液等产生的浮力造成的,并且上浮过程是一个复杂、缓慢的过程。论文主要对隧道管片上浮的成因进行探究,并提出相应的解决方案。

The floating segment is caused by buoyancy, and the buoyancy is caused by the ground water and slurry in the gap between the surrounding rock and the outer wall of tube lining. The floating process is a complex and slow process. This paper mainly explores the floating of the tunnel segments and puts forward corresponding solutions.