Behavior of damaged TBM tunnel under MJS and Micro-disturbance grouting treatment: a case study

• Autorzy: Feng Shi , Yang Yijun , Jiang Yexiang , Li Yongdi , Yao Lianghao , Chen Xiaolong

Identyfikatory

DOI

10.24425/ace.2023.145271

• Języki publikacji: EN

Abstrakty

EN

The operating subway tunnel is often damaged due to excessive deformation in China. In order to ensure the safe for operation, remediation and protection measures must be taken, especially in soft soil areas. This paper presents a case study on remedial scheme of damaged TBM (Tunnel Boring Machine) tunnel adjacent to excavation combining with MJS (Metro Jet System) and micro-disturbance grouting technology in Hangzhou, China. The track bed settlement, horizontal displacement and convergence of the TBM tunnel caused by MJS and micro-disturbance grouting construction were analyzed and discussed. The results showed the characteristics of soil layer under the tunnel have significant influence on the treatment effect. Even if multiple grouting was adopted, the treatment failure may occur under the combination action of external loads such as traffic load or surcharge load, which should be considered when civil engineers design remediation scheme. The results can provide practical experience and guidance for similar treatment scheme of damaged TBM tunnel.

Słowa kluczowe

EN

metro jet system; damage; tunnel boring machine; tunnel; micro-disturbance grouting; technology; treatment

PL

system strumieniowy metra; tunel; uszkodzenie; TBM; technologia; iniekcja mikrozakłóceniowa; naprawa

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2023
• Tom: Vol. 69, nr 2
• Strony: 339--352
• Opis fizyczny: Bibligor. 13 poz., il., tab.

Twórcy

autor

Feng Shi

• Chengdunsuian Underground Engineering Co., Ltd., Shanghai, China

• https://orcid.org/0000-0002-1340-0017

autor

Yang Yijun

• Hangzhou Metro Group Co., Ltd., Hangzhou, China

• https://orcid.org/0000-0002-8779-4995

autor

Jiang Yexiang

• Hangzhou Metro Group Co., Ltd., Hangzhou, China

• https://orcid.org/0000-0003-1744-4348

autor

Li Yongdi

• Chengdunsuian Underground Engineering Co., Ltd., Shanghai, China

• https://orcid.org/0000-0003-1827-5726

autor

Yao Lianghao

• Chengdunsuian Underground Engineering Co., Ltd., Shanghai, China

• https://orcid.org/0000-0001-8355-4508

autor

Chen Xiaolong

• Chengdunsuian Underground Engineering Co., Ltd., Shanghai, China

• https://orcid.org/0000-0001-5166-2977

Bibliografia

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