Centrifuge model test of parallel shield underneath high-speed railway tunnel

• Autorzy: Fei Ruizhen , Peng Limin , Zhang Chunlei , Zhang Jiqing , Zhang Peng

Identyfikatory

DOI

10.24425/ace.2022.141909

• Języki publikacji: EN

Abstrakty

EN

In order to study the ground disturbance and the influence relationship between the two tunnels during the construction of the new shield tunnel undercrossing the existing high-speed railway tunnel, the centrifuge test was used to simulate the construction of the parallel shield tunnel undercrossing the high-speed railway tunnel, and the variation law of the internal force, segment deformation and surface settlement of the existing high-speed railway tunnel undercrossing the shield was studied. It is found that the adverse effects caused by the later tunnel are less than those caused by the first tunnel excavation. For the existing tunnels without settlement joints, the longitudinal settlement of the inverted arch and the vault is U-shaped and anti-U-shaped respectively. The settlement value of the ground surface and the existing tunnel is increased by more than 100%. When the shield passes through the high-speed railway tunnel, the transverse bending strain is larger than the longitudinal, and special attention should be paid at the corner.

Słowa kluczowe

EN

high-speed railway; tunnel; twin tunnel; excavation; settlement joint; centrifuge test; tunnel lining

PL

kolej dużych prędkości; tunel; tunel podwójny; wykop; osiadanie wspólne; badanie wirówkowe; obudowa tunelu

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2022
• Tom: Vol. 68, nr 3
• Strony: 661--677
• Opis fizyczny: Bibliogr. 21 poz., il.

Twórcy

autor

Fei Ruizhen

• Central South University, School of Civil Engineering, Changsha, China
• China Railway Design Corporation, Tianjin, China

• https://orcid.org/0000-0002-9142-4890

autor

Peng Limin

• Central South University, School of Civil Engineering, Changsha, China

• https://orcid.org/0000-0002-0402-2368

autor

Zhang Chunlei

• China Railway Design Corporation, Tianjin, China

• https://orcid.org/0000-0002-0630-1467

autor

Zhang Jiqing

• China Railway Design Corporation, Tianjin, China

• https://orcid.org/0000-0002-0864-9934

autor

Zhang Peng

• China Railway Design Corporation, Tianjin, China

• https://orcid.org/0000-0001-6185-2379

Bibliografia

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Uwagi

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).