Analyzing immediate settlement of Hong Kong-Zhuhai-Macao Bridge immersed tunnel based on monitoring data. (17th December 2021)

• Record Type: Journal Article
• Authors: Li, Bin; Hou, Jinfang; Min, Kaiyi; Zhang, Jiaying
• Is Part Of: Ships and offshore structures. Volume 16(2021)Supplement 2
• Page Start: 100
• Page End: 109
• Publication Date: 2021-12-17
• Subjects: Immersed tunnel -- Hong Kong-Zhuhai-Macao Bridge -- monitoring data -- immediate settlement -- rebound and recompression settlement; Ships -- Periodicals; Offshore structures -- Periodicals; Marine engineering -- Periodicals; Marine engineering -- Technological innovations -- Periodicals; Ocean engineering -- Periodicals; Ocean engineering -- Technological innovations -- Periodicals; 623.8
• DOI: 10.1080/17445302.2021.2012016
• Languages: English
• ISSNs: 1744-5302

Abstract

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.