Tunnel deformation and stress response under the bilateral foundation pit construction: a case study

• Autorzy: Fan Shengyuan , Song Zhanping , Xu Tian , Wang Kaimeng , Zhang Yuwei

Identyfikatory

DOI

10.1007/s43452-021-00259-7

• Języki publikacji: EN

Abstrakty

EN

Bilateral deep foundation pit excavation would cause the stress redistribution and large deformation of the adjacent tunnel, and even induce the lining structure cracking. This paper aims to investigate the deformation and stress response of tunnel to bilateral foundation pit construction. The Zhengzhou East High-speed Railway Station (Zhengzhou East HRS) was taken as an example to conduct the analysis. First, the numerical calculation software Midas GTS/NX was used to simulate the foundation pit construction progress, the deformation and stress of tunnel structure were discussed. Then, some field work about tunnel deformation was conducted and the deformation characteristics was studied. The results show that under the repeated disturbance of the bilateral foundation pit construction, the tunnel deformation increased fluctuatingly, with the cumulative uplift and convergent deformation of about 26 mm and 16 mm, respectively. In addition, the cumulative change of the lining stress at DM16 section inside the foundation pit was 6.02% greater than that at DM30 section outside of the foundation pit, indicating the effectiveness of the reinforcement measures.

Słowa kluczowe

EN

bilateral excavation; adjacent disturbance; existing tunnel; numerical simulation; field monitoring

PL

tunel; symulacja numeryczna; wykop budowlany

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2021
• Tom: Vol. 21, no. 3
• Strony: 420--438
• Opis fizyczny: Bibliogr. 31 poz., fot., rys., tab., wykr.

Twórcy

autor

Fan Shengyuan

• School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
• Shaanxi Key Lab of Geotechnical and Underground Space Engineering, Xi’an 710055, China

autor

Song Zhanping

• School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
• Shaanxi Key Lab of Geotechnical and Underground Space Engineering, Xi’an 710055, China

autor

Xu Tian

• School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
• Shaanxi Key Lab of Geotechnical and Underground Space Engineering, Xi’an 710055, China

autor

Wang Kaimeng

• School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
• Shaanxi Key Lab of Geotechnical and Underground Space Engineering, Xi’an 710055, China

autor

Zhang Yuwei

• School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China
• Shaanxi Key Lab of Geotechnical and Underground Space Engineering, Xi’an 710055, China

Bibliografia

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)