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Ships and Offshore Structures Volume 16, 2021 - Issue sup2: Cross-sea Channel Engineering
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Analyzing immediate settlement of Hong Kong-Zhuhai-Macao Bridge immersed tunnel based on monitoring data

Bin Lia Tianjin Port Engineering Institute Co., Ltd. of CCCC First Harbor Engineering Co., Ltd., Tianjin, People’s Republic of China;b Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, PRC, Tianjin, People’s Republic of China;c Key Laboratory of Tianjin Port Geotechnical Engineering, Tianjin, People’s Republic of China;d CCCC First Harbor Engineering Company Ltd., Tianjin, People’s Republic of ChinaCorrespondence[email protected] [email protected]
ORCID Iconhttps://orcid.org/0000-0003-2706-8550
ORCID Icon,
Jinfang Houa Tianjin Port Engineering Institute Co., Ltd. of CCCC First Harbor Engineering Co., Ltd., Tianjin, People’s Republic of China;b Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, PRC, Tianjin, People’s Republic of China;c Key Laboratory of Tianjin Port Geotechnical Engineering, Tianjin, People’s Republic of China;d CCCC First Harbor Engineering Company Ltd., Tianjin, People’s Republic of China
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Kaiyi Mine State Key Laboratory of Eco-hydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an, People’s Republic of China
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Jiaying Zhanga Tianjin Port Engineering Institute Co., Ltd. of CCCC First Harbor Engineering Co., Ltd., Tianjin, People’s Republic of China;b Key Laboratory of Port Geotechnical Engineering, Ministry of Communications, PRC, Tianjin, People’s Republic of China;c Key Laboratory of Tianjin Port Geotechnical Engineering, Tianjin, People’s Republic of China;d CCCC First Harbor Engineering Company Ltd., Tianjin, People’s Republic of China
Pages 100-109 | Received 02 Sep 2020, Accepted 23 Nov 2021, Published online: 16 Dec 2021
 
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ABSTRACT

The monitored settlement data can reflect the safety condition of tunnel construction. The monitored settlement data, the experimental results and theoretical calculation outcomes of settlements of the immersed tunnel of Hong Kong-Zhuhai-Macao Bridge (HZMB) were compared and the contributing factors to the settlement and the underlying mechanism of settlement were discussed. The immediate settlement is the major form of settlement of the HZMB tunnel. The immediate settlement accounts for about 70%–80% of the total settlement of the tunnel, which is mainly caused by the gravel cushion and foundation soil. The settlement is 7.2–11.2 mm about the natural foundation section, and that of clay section is larger than sandy soil section. The immediate settlement can be calculated by the formula specified in the Foundation Code of Japan. The results are expected to provide a basis for the design and construction of immersed tunnels in the future.

Disclosure statement

No potential conflict of interest was reported by the author(s).

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