Results 1 to 10 of about 6,384,714 (292)

Centrifuge modeling of tunneling-induced ground surface settlement in sand

open access: yesUnderground Space, 2019
Stress changes in the soil induced by tunnel excavation may cause excessive ground settlement. However, high-quality experimental data on ground settlement due to tunnel excavation are limited. In this study, centrifuge tests are conducted to investigate
Hu Lu, Jiangwei Shi, Yu Wang, Rong Wang
doaj   +4 more sources

Predictions of ground surface settlement for shield tunnels in sandy cobble stratum based on stochastic medium theory and empirical formulas

open access: yesUnderground Space, 2023
This paper focuses on the prediction of ground surface settlement induced by shield tunnelling in sandy cobble stratum. Based on the stochastic medium theory, an analytical solution to predict the surface settlement is developed considering the ...
Fan Wang, Xiuli Du, Pengfei Li
doaj   +4 more sources

Influence of double-line large-slope shield tunneling on settlement of ground surface and mechanical properties of surrounding rock and segment

open access: yesAlexandria Engineering Journal, 2023
The surface settlement formula of large slope tunnel is derived firstly. Then, the finite element model of shield tunnel is established by using ABAQUS software.
Ping Lou   +5 more
doaj   +4 more sources

Ground settlement induced by NATM tunneling and surface loads in Shiraz metro station [PDF]

open access: yesScientific Reports
Urban tunneling, especially in the construction of shallow metro stations, can lead to significant ground movements that may affect the safety and integrity of nearby surface structures.
Arif Khan   +4 more
doaj   +4 more sources

Machine learning-based forecasting of ground surface settlement induced by metro shield tunneling construction [PDF]

open access: yesScientific Reports
Urban rail transit systems, represented by subways, have significantly alleviated the traffic pressure brought by urbanization and have addressed issues such as traffic congestion.
Qiankun Wang   +5 more
doaj   +2 more sources

Influence of large diameter deep buried pipe jacking construction on surface settlement

open access: yes地质科技通报, 2022
Pipe jacking construction is widely used in urban construction due to non-excavation or less excavation, but the surface settlement caused by pipe jacking construction cannot be ignored. Relying on a pipe jacking project of a power tunnel in Foshan City,
Letian Wang   +2 more
doaj   +2 more sources

Numerical investigation of ground surface settlement due to circular tunnelling influenced by variations of geometric characteristics of tunnel and mechanical properties of saturated soil and its prediction in the artificial neural network [PDF]

open access: yesمجله مدل سازی در مهندسی, 2021
The settlement of the ground surface due to tunneling are considered as tunnel instability factors, as well as the displacement of the crown of the tunnel.
vahed ghiasi, Mehdi Koushki
doaj   +2 more sources

Dynamic prediction and influence factors analysis of ground surface settlement during tunnel excavation

open access: yesRock and Soil Mechanics, 2022
The construction of urban subway tunnel inevitably produces disturbance to surrounding rock and causes ground surface settlement. Dynamic prediction of ground surface settlement caused by tunnel excavation is an important method to ensure the safety of ...
JIANG Shuai   +5 more
doaj   +1 more source

Control settlement of recharge in ultra-deep excavations under partial block effect of aquifer

open access: yesYantu gongcheng xuebao, 2021
In coastal cities in China, taking Tianjin for an example, the pressure aquifer is rather thick and buried deep. Cutting off all the aquifer will lead to high construction cost.
ZHENG Gang 1, 2, SHI Jian-cheng 2, CHENG Xue-song 1, 2, ZHAO Yue-bin 2, LI Qing-han 2, GAO Qi 3, LIU Bo 3, WANG Shu-xiong 4, MA Ji-shan 4
doaj   +1 more source

Numerical simulation of ground surface settlement of underpass building in tunnel boring machine double-line tunnels

open access: yesFrontiers in Earth Science, 2022
Ground surface settlement under subway tunnel construction is one of the main sources of urban ground surface settlement, which may threaten the safety of existing buildings. Therefore, it is necessary to study the influence of subway tunnel construction
Ting Ren   +4 more
doaj   +1 more source

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