土压平衡盾构穿越浅基础拉杆拱桥施工沉降控制技术研究

Hazard Control in Tunnelling and Underground Engineering

2019, Vol. 1

Issue (2): 114-123 DOI:

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Settlement control method for shallow foundation tied arch bridge lying over earth-pressure balance shield construction

WEN Faqing

China Railway 18^th Bureau Group Ltd., Tianjin 300222, China

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Abstract The settlement of bridge abutment should be strictly controlled during the tunneling shield construction under the shallow foundation of tied arch bridges. To investigate the effect of static pressure injection method on the settlement control of bridge abutment, the tunneling shield models in a subway construction under shallow foundation of tied arch bridges was set up and the sequential excavation of the tunneling shields was simulated by FLAC3D. The numerical simulation results indicated that the settlement of bridge abutment would exceed the regulation requirement. Reinforced by the static pressure injection method, the bridge abutment was numerically simulated once again by adjusting relative parameters. The latter simulating results indicated the settlement of bridge abutment was well controlled. By monitoring the settlements of bridge abutment and deck in the construction, the numerical results were validated and the static pressure injection method was proved to be effective on settlement controlling of bridge abutment.

Key words： tunneling shield tied arch bridge static pressure injection method numerical simulation settlement control

Received: 25 August 2018 Published: 29 July 2019

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WEN Faqing. Settlement control method for shallow foundation tied arch bridge lying over earth-pressure balance shield construction[J]. Hazard Control in Tunnelling and Underground Engineering, 2019, 1(2): 114-123.

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http://tunnel.sdujournals.com/EN/ OR http://tunnel.sdujournals.com/EN/Y2019/V1/I2/114

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