Influences of Underground Excavation Section on Highspeed Railway Bridge: a Case Study of Beijing New Airport Line under Crossing Beijing Superlarge Bridge of BeijingShanghai Highspeed Railway

doi:10.3973/j.issn.2096-4498.2018.S2.018

Tunnel Construction ›› 2018, Vol. 38 ›› Issue (S2): 126-135.DOI: 10.3973/j.issn.2096-4498.2018.S2.018

Influences of Underground Excavation Section on Highspeed Railway Bridge: a Case Study of Beijing New Airport Line under Crossing Beijing Superlarge Bridge of BeijingShanghai Highspeed Railway

YI Lingbing¹, LIU Peng², DU Mingfang³, LYU Gaole⁴, WANG Ximei², LIU Shenghuan³, ZHENG Weifeng², LI Shuaibing², LYU Zhaolong²

（1. CCCC Railway Consultants Group Co., Ltd., Beijing 100000, China; 2. Shanghai City Railway Construction Technology Co., Ltd., Shanghai 200000, China; 3. College of Civil Engineering and Architecture, Henan University of Technology, Zhengzhou 450000, Henan, China; 4. Zhengzhou Metro Co., Ltd., Zhengzhou 450000, Henan, China）

Received:2018-11-20 Revised:2018-12-10 Online:2018-12-30 Published:2019-01-30

Abstract

Abstract:

In order to study the influence of tunneling under crossing the large crosssection underground excavation section in sandy cobble stratum in Beijing on superlarge bridge of BeijingShanghai Highspeed Railway, the large underground excavation section of the tunnel at the Caoqiao Station in Beijing New Airport Line is taken as the engineering background, the underground excavation tunnel passing through superlarge bridge of BeijingShanghai Highspeed Railway is designed. Midas/GTS software is applied to make finite element analysis of displacement variation laws of bridge deck, pier, cap and pile during the construction. The variation laws of the additional stress of bridge pile, the differential settlement and the variation laws of formation stress of bridge cap during the construction at the large underground excavation section are obtained.

Key words: large crosssection underground excavation section, superlarge bridge of BeijingShanghai Highspeed Railway, underpass construction, Midas/GTS, displacement, stress

CLC Number:

U 451*.2

YI Lingbing, LIU Peng, DU Mingfang, LYU Gaole, WANG Ximei, LIU Shenghuan, ZHENG Weifeng, LI Shuaibing, LYU Zhaolong. Influences of Underground Excavation Section on Highspeed Railway Bridge: a Case Study of Beijing New Airport Line under Crossing Beijing Superlarge Bridge of BeijingShanghai Highspeed Railway[J]. Tunnel Construction, 2018, 38(S2): 126-135.

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Influences of Underground Excavation Section on Highspeed Railway Bridge: a Case Study of Beijing New Airport Line under Crossing Beijing Superlarge Bridge of BeijingShanghai Highspeed Railway

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