Soil Engineering and Foundation

Soil Engineering and Foundation ›› 2019, Vol. 33 ›› Issue (6): 642-646.

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Analysis of Leakage Defect Patterns at Structural Construction Joints of a Subway Station

Most of the subway stations are located near the groundwater zone, and the longterm water erosion will easily result in leakage hazards at the construction joints of the main structure of the subway stations, which will adversely affect the service life and safety of the subway station structures. This paper presents a case history of construction joints treatment for the groundwater leakage in the construction of Shangzhi Street Station of the first phase of Harbin Rail Transit Line No. 2. Based on field construction data, this paper discusses the leakage patterns observed in the construction joints. The groundwater leaking problem was then numerical analyzed throughout a threedimensional finite element by using Midas GTS NX software. The patterns of seepage hazards induced by construction joints of metro station structure was extensively investigated. And the groundwater leakage at the metro station structures was then able to be mitigated due to a better understanding of the process of seepage occurrence, development and hazard at construction joints of underground reinforced concrete structures.   

  1. (School of Civil Engineering, Shandong University, Jinan 250061)
  • Received:2019-03-27 Revised:2019-04-06 Online:2019-12-28 Published:2019-12-28

Abstract: Most of the subway stations are located near the groundwater zone, and the longterm water erosion will easily result in leakage hazards at the construction joints of the main structure of the subway stations, which will adversely affect the service life and safety of the subway station structures. This paper presents a case history of construction joints treatment for the groundwater leakage in the construction of Shangzhi Street Station of the first phase of Harbin Rail Transit Line No. 2. Based on field construction data, this paper discusses the leakage patterns observed in the construction joints. The groundwater leaking problem was then numerical analyzed throughout a threedimensional finite element by using Midas GTS NX software. The patterns of seepage hazards induced by construction joints of metro station structure was extensively investigated. And the groundwater leakage at the metro station structures was then able to be mitigated due to a better understanding of the process of seepage occurrence, development and hazard at construction joints of underground reinforced concrete structures.

Key words: Subway Station, Construction Joints, Leakage Hazards, Numerical Analyses

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