Bridge Responses Induced by Adjacent Subway Station Construction Using Shallow Tunneling Method

Su, Jie; Fang, Qian; Zhang, Dingli; Niu, Xiaokai; Xiang, Liu; Jie, Yunming

doi:10.1155/2018/8918749

Cited by 9 publications

(6 citation statements)

References 25 publications

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“…erefore, other means should be combined to control the retaining wall deformation. Grouting and isolation piles are two common means to protect adjacent structures in close construction [26][27][28][29][30][31]. However, in past engineering practices, the selection of grouting and isolation piles was often blind.…”

Section: Comparison Of the Protection Effect Between Foundationmentioning

confidence: 99%

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

Wang

et al. 2020

Advances in Civil Engineering

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Anzhen Bridge Station of Beijing metro line 12, which adopts a separated-island platform constructed by the undermining method, passes along the retaining wall of the North Third Ring Road. A numerical simulation method is adopted to study the deformation laws of the retaining wall under the influence of station construction. The simulation data show that the affected retaining wall will have large settlement and tilt, and countermeasures must be taken. Four countermeasures are formulated, and their control effects are analyzed. The calculation results show that the combination of anchor cables and waist beams can effectively control the tilt of the retaining wall, but the control effect on the absolute settlement is not obvious. The control effect of isolation piles is better than that of foundation grouting. The joint control method of anchor cables combined with waist beams, isolation piles, and deep hole grouting makes the deformation meet the target, and according to this measure, a concept of joint control aiming at the influence of the “source,” “propagation,” and “object” is proposed, which can provide a reference for similar projects with a great difficulty in deformation control.

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Section: Comparison Of the Protection Effect Between Foundationmentioning

confidence: 99%

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

Wang

et al. 2020

Advances in Civil Engineering

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“…Generally speaking, the complex construction environment and conditions are the biggest challenges in metro construction especially when it is required to cross through the foundation pile of existing buildings or bridges [1][2][3][4]. The previous researches mainly focus on the theoretical empirical formula [5][6][7][8], laboratory similarity experiment [9,10], numerical simulation [11,12], and so on during the shield tunnel construction.…”

Section: Introductionmentioning

confidence: 99%

Case Study of Underground Shield Tunnels in Interchange Piles Foundation Underpinning Construction

et al. 2021

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Technology of shield tunneling has been widely used in modern city subway system building, however, due to the limit of urban construction land resources, it is inevitable for the new building structures conflicted with existing one. Thus, it is essential to taking correct measures to guarantee the safety of existing structure. In this case, a typical case of metro shield tunnel crossing through city overpass bridge piles underpinning construction project is studied by the numerical method and site field monitoring. According to the existing overpass bridge structure, geological conditions and site operation environment, a suitable construction method of piles foundation underpinning plan for this project is adopted. In order to ensure the structure safety of the existed overpass bridge during the pile foundation underpinning construction, a numerical simulation model is established which takes the whole foundation underpinning structure and construction steps into consideration. The numerical simulation result shows that the stress and the settlement of the piles foundation underpinning structure is reasonable. After the comparing of the site monitoring data with the numerical model simulation results, it is found that the site settlement and stress results are highly consistent with the calculated results, and it proves the feasibility of the piles foundation underpinning construction scheme. Eventually, the site gauging settlement data of the overpass pier and the pile cap indicate that the original overpass structure is barely affected by the shield tunnel construction, the construction method can provide reference and experience for the future similar projects.

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“…Peng et al [12] used the time-history analysis method to study the ASEISMIC behavior of the subway station span bridge. Su et al [13] studied the response of subway station construction to the bridge. Chen et al [14] ran an emergency evacuation simulation of the bridge at the start of the connection.…”

Section: Introductionmentioning

confidence: 99%

Study on Settlement and Deformation of Urban Viaduct Caused by Subway Station Construction under Complicated Conditions

Luo

Cheng

Bai

et al. 2021

Advances in Civil Engineering

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With the rapid development of urbanization, the speed of constructing urban underground space and ground foundation engineering is accelerated. With the shortage of land resources, the distance between underground engineering and surface engineering is getting closer and closer, and the contradictions and problems between projects are becoming more and more serious. Based on the new subway station, this paper passes the existing urban viaduct in a short distance. The settlement and deformation of pile foundation and buildings caused by the excavation of the subway station is studied by using ROCSCIENCE software and site monitoring method. The potential risk sources around the station are pile foundations 18.5 m away, residential buildings 15 m away, storm water pipes 7.3 m away, and high-pressure gas pipes at 5.6 m. According to the construction requirements of pile foundation settlement deformation during metro station excavation, we set up construction standards. The settlement of the buildings and pipelines around the metro station should not exceed 3 mm, and the horizontal displacement should not exceed 2 mm. The diaphragm wall is adopted to surround the subway station, and the ground is reinforced by advanced grouting. The results show that, during the excavation of the foundation pit of the metro station, the ground and the building will have obvious settlement deformation and the depth of deformation can reach 9 mm, which is more than the allowable value. The settlement deformation of the ground and the surrounding buildings can be controlled within 3 mm by strengthening the foundation pit support and ground advance-grouting reinforcement. The control of construction deformation can meet the construction requirements.

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Bridge Responses Induced by Adjacent Subway Station Construction Using Shallow Tunneling Method

Cited by 9 publications

References 25 publications

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

The Influence of Complex Subway Station Construction on High Retaining Walls and Appropriate Countermeasures

Case Study of Underground Shield Tunnels in Interchange Piles Foundation Underpinning Construction

Study on Settlement and Deformation of Urban Viaduct Caused by Subway Station Construction under Complicated Conditions

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