Study on the Seismic Response of Shield Tunnel Structures with the Preload Loss of Bolts [PDF]
, 2023 Shield tunnels can experience preload loss in their connecting bolts during the operational phase, leading to changes in tunnel structure stiffness, which, in turn, affect the seismic performance of shield tunnels.
Hongzhi Cui +6 more
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Analysis of parameters for large cross-section quasi-rectangular EPBM in water-rich sandy strata
Scientific ReportsWater-rich sandy stratum, characterized by high permeability, low cohesion, and strong fluidity, poses critical challenges for large-section quasi-rectangular Earth Pressure Balance Shield Machine tunneling.
Shi-ju Ma +4 more
doaj +1 more source
Numerical modelling of ground-tunnel support interaction using bedded-beam-spring model with fuzzy parameters [PDF]
, 2011 The study of the ground-tunnel interaction by introducing a predetermined degree of variation (fuzziness) in some parameters of the chosen model is presented and discussed.
Barbero, Monica +2 more
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Training-free Semantic Segmentation of Shield Tunnel Point Clouds [PDF]
. Semantic segmentation of shield tunnel point clouds provides valuable information for checking assembly quality, deformation, or defects. To achieve efficient semantic segmentation of shield tunnel point clouds, Tunnel-NN, a training-free non ...
Qiao, Y, Ding, W, Khoshelham, K, Wang, Q
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Stress Analysis of Metro Shield Tunnel Segment — Based on 3D Discontinuous Contact Computational Model [PDF]
, 2011 Based on the 1# shield tunnel of SU ZHOU rail transit, a 3D discontinuous contact computational model of shield tunnel segment and bending bolts is built.
Yu Jie Li, Ping He, Dong Pin Qin
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Evaluation of segment convergence and settlement of subway shield tunnel in water-rich complex stratum [PDF]
, 2022 Based on the shield tunnel construction of the left line of Guowei road station-Qingshan lake west station of Nanchang metro line 3, the study focuses on the adverse effects of tunnel segment convergence and settlement deformation of vault and arch ...
Li, Jinping, He, Binbin, Feng, Lei
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Alexandria Engineering JournalBased on a large-section quasi-rectangular shield tunnel project of Zhengzhou Metro Line 8, this study conducts a full-scale field experiment to investigate the influence of various construction loads on the external load of the tunnel structure during ...
Jing-kun Pi +5 more
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Mechanics Analysis of Shield Construction Traversing Adjacently under Existing Urban Tunnel
工程科学与技术, 2016 :In allusion to the security risk of Hefei metro tunnel engineering during shield construction traversing adjacently under existing urban tunnel,adopting FLAC3D to simulate shield tunnel excavation, stress and strain distribution rules of the existing ...
huzhong, shaoxun, yaohuayan
doaj
Reasonable overburden thickness for underwater shield tunnel [PDF]
, 2018 A reasonable overburden thickness is of importance for the stability of underwater shield tunnels. Based on the analysis of existing theoretical methods, this paper presents a modified method for the estimation of the minimum overburden thickness during ...
Guo, C, Shi, L, Qi, J, Fang, Q
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Development and consideration of Chinese super-large diameter shield tunnel [PDF]
Since the establishment of the People’s Republic of China, the country has made significant progress in tunnel construction, transforming from a “weak tunnel nation” to a “strong tunnel nation.” As of 2022, China has undertaken more than 60 projects ...
Su, Linjian +4 more
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