RESPONSE OF SURROUNDING ENVIRONMENT DURING EXCAVATING OF SUBWAY SHAFT ADJACENT TO BUILDING

LI Liyun; QIU Zhongwang; DU Xiuli; GUO Yunfeng

doi:10.13544/j.cnki.jeg.2017-357

2018 Vol. 26, No. 4

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Article navigation > Journal of Engineering Geology > 2018 > 26(4): 1086-1094

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LI Liyun, QIU Zhongwang, DU Xiuli, GUO Yunfeng. 2018. RESPONSE OF SURROUNDING ENVIRONMENT DURING EXCAVATING OF SUBWAY SHAFT ADJACENT TO BUILDING[J]. Journal of Engineering Geology, 26(4): 1086-1094. doi: 10.13544/j.cnki.jeg.2017-357

Citation:

LI Liyun, QIU Zhongwang, DU Xiuli, GUO Yunfeng. 2018. RESPONSE OF SURROUNDING ENVIRONMENT DURING EXCAVATING OF SUBWAY SHAFT ADJACENT TO BUILDING[J]. Journal of Engineering Geology, 26(4): 1086-1094. doi: 10.13544/j.cnki.jeg.2017-357

RESPONSE OF SURROUNDING ENVIRONMENT DURING EXCAVATING OF SUBWAY SHAFT ADJACENT TO BUILDING

LI Liyun^①,②,,
QIU Zhongwang^①,②,
DU Xiuli^①,②,
GUO Yunfeng^③

①
Key Laboratory of Urban Security and Disaster Engineering(Beijing University of Technology), Ministry of Education, Beijing 100124
②
College of Architectural and Civil Engineering, Beijing University of Technology, Beijing 100124
③
Beijing Chengan Jianshe Gongcheng Test Technology Co., Ltd., Beijing 100176
Fund Project:
国家自然科学基金项目（51538001，51421005）资助

Received Date: 27 July 2017

Accepted Date: 09 October 2017

Publish Date: 25 August 2018

Abstract

Abstract

Many engineering cases show that the risks of the circumstances around the metro station caused by the excavation of these accessory structures including shaft, cross channel, and metro station pilot tunnel are the major component of the metro construction risk. This paper aims to comprehend the response of surrounding area during the construction of subway shaft. It is based on a subway shaft engineering project of the Changchun subway line 1. The shaft is located at the crossings of Ziyou Road and Renmin Street of Changchun city. Settlements of the surface and adjacent buildings around shaft are studied using finite element software and field monitoring data. The ground surface deformation characteristics and deformation mechanism are discussed. The effect of row piles beside the buildings is also analyzed. The results show that the horizontal deformation of the lining and the land upheaval at the shaft bottom are the important reasons to cause the stratum deformation in the surrounding area. The row piles can interrupt the deformation of foundation and reduce the cumulative settlement and the differential settlement. Finally, the length of the row piles is also discussed. These conclusions are useful for similar project construction.
- Subway shaft /
- Field monitoring /
- Numerical simulation /
- Upside-down well wall method /
- Response of surrounding environment

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References

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RESPONSE OF SURROUNDING ENVIRONMENT DURING EXCAVATING OF SUBWAY SHAFT ADJACENT TO BUILDING

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