轨道交通区间隧道结构变形缝突发涌水应急处理

Emergency Treatment of Sudden Water and Sand Inflows through Deformation Joint of Rail Transit Interval Tunnel in Operation

运营中的轨道交通区间隧道因各种突发性原因造成变形缝内中埋式止水带突然出现崩脱剥离,极易导致结构外部土体粉细砂层随水大量涌入隧道内,使变形缝两侧混凝土出现不均匀沉降。结合工程实践,介绍和分析了突发性病害及其应急处理方法,为类似隧道结构病害治理提供参考。

The medium-embedded water stop in the deformation joint of rail transit interval tunnel in operation may break off due to various sudden diseases, which will result in uneven settlement at both sides of deformation joints due to the inflow of external fine silt and water. Combined with the engineering practice, it introduces the sudden diseases and their emergency treatments, which can be referred for the treatment of similar tunnel structural diseases.