Results 21 to 30 of about 8,336,956 (337)

The effect of CRD method and auxiliary construction on surface settlement in shallow-buried tunnels

open access: yesFrontiers in Earth Science, 2023
Several engineering practices have shown that the excavation of shallow-buried tunnels beneath major roads, as well as the selection of appropriate engineering measures and construction methods, has a significant impact on road surface settlement ...
Lin Zhang   +14 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

Prediction for the surface settlement of double-track subway tunnels for shallow buried loess based on peck formula

open access: yesFrontiers in Earth Science, 2023
In the process of constructing double-track subway tunnels in shallow buried loess areas, the interaction of double-track tunnels is significantly influenced by the net distance and the cross-section size, which is challenging to control the surface ...
Shuangyuan Wang   +8 more
doaj   +2 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   +3 more sources

Additional Stress of Soil and Surface Settlement during Tunnel Shield Construction

open access: yesBuildings, 2023
To study the influence of shield excavation on the surrounding soil, and to control the influence of the shield excavation of the subway tunnel on the surface settlement and the deformation of the surrounding buildings, it is necessary to study the ...
Ying Li   +4 more
doaj   +2 more sources

Innovative Grouting Reinforcement Techniques for Shield Tunnels: A Case Study on Surface Settlement Mitigation

open access: yesApplied Sciences
This study investigates the impact of flower tube grouting reinforcement on surface settlement in shield tunnels under complex geological conditions, using the Wuhan Metro Line 12 project as a case example. A simulation model was constructed using PLAXIS
Qiang Ma, Xingchi Zhang, Hang Shu
doaj   +2 more sources

A Numerical Study of the Effect of Tunneling on Surface Settlement and Existing Buildings [PDF]

open access: yesInternational Journal of Engineering, 2021
This study aimed to determine the effect of various influencing parameters such as tunnel diameter (D), depth (H), width (B), length (L), number of floors, and the horizontal distance of the building from the tunnel axis (X), as well as soil properties such as internal friction angle (ϕ), Poisson ratio (υ), modulus of elasticity (E), and cohesion (C ...
Rajabi, A.M., Mahmoudi, M., Taebi, M.
openaire   +2 more sources

Modification of Peck Formula to Predict Ground Surface Settlement of Twin Tunnels in Low Permeability Soil

open access: yesAdvance in Civil Engineering, 2021
Accurate prediction of surface settlement induced by tunnel excavation is significant for preventing damage to existing structures under complex geological conditions.
Xiaowu Tang   +6 more
semanticscholar   +2 more sources

A New Modified Peck Formula for Predicting the Surface Settlement Based on Stochastic Medium Theory

open access: yesAdvances in Civil Engineering, 2019
Peck method and stochastic medium method are the two most commonly used methods to estimate surface settlement caused by tunnel excavation. However, the Peck method was not suitable for a shallow-buried tunnel, and the calculation process of the ...
Zhanping Song, Xiaoxu Tian, Yuwei Zhang
doaj   +2 more sources

Surface Settlement of Deep Foundation Pit Considering the Influence of Excavation and Freeze–Thaw

open access: yesBuildings
In order to address the issue of surface deformation in wintering foundation pits in seasonal frozen soil areas due to excavation and freeze–thaw, an indoor scale model test was conducted to examine the displacement relationship between pit wall soil and
Yuanxun Li   +3 more
doaj   +2 more sources

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