Results 1 to 10 of about 56,959 (255)
Geofluids, 2023 To use urban underground space more efficiently is a research hotspot of urban underground development. Compared with conventional circular tunnels, quasirectangular tunnels have the characteristics of larger space utilization and higher economic ...
Kun Zhang +4 more
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Analysis of parameters for large cross-section quasi-rectangular EPBM in water-rich sandy strata [PDF]
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
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An analysis of interaction of deep buried close approaching multi-line parallel shield tunneling
Shuiwen dizhi gongcheng dizhi, 2021 Construction of a second shield tunnel in shallow soft strata may reduce the safety of the first shield tunnel, especially when the clear spacing is very small.
Zhao FU +4 more
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Temporal variation laws of longitudinal stress on cross section of shield tunnels
Yantu gongcheng xuebao, 2021 The longitudinal stress acting on the cross section of shield tunnels will affect the waterproof properties of the segments and the stiffness of the circumferential joints, which will thus affect the development trend of the longitudinal nonuniform ...
LIU Xian 1, YANG Zhen-hua 1, MEN Yan-qing 2
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Numerical simulation by the explicit-MPS method for agitation torque of Newtonian fluid
Nihon Kikai Gakkai ronbunshu, 2023 Numerical simulation was conducted in this study to calculate the agitating torque of the high viscosity Newtonian fluid by the explicit-MPS method using virtual boundary particles for the agitating container and the agitating flapper.
Atsushi KAGAWA, Yoshihide SUWA
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Study on characteristic of fluid soil in the chamber of EPB shield
Nihon Kikai Gakkai ronbunshu, 2021 The visualization system has been developed to control the fluidity of the excavated soil in the chamber of the EPB shield in real time during the shield advance.
Atsushi KAGAWA, Yoshihide SUWA
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Agitating tests of fluid soil admixed with foam in the chamber of EPB shield
Nihon Kikai Gakkai ronbunshu, 2022 The visualization system of soil fluidity in the chamber of EPB (Earth Pressure Balanced) shield has been developed to maintain appropriate fluidity of the excavated soil in real time during the shield advance under the tunnel construction.
Atsushi KAGAWA, Yoshihide SUWA
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A New Design Method of Shield Tunnel Based on the Concept of Minimum Bending Moment
Applied Sciences, 2022 As the soil-resistance coefficient in a soft soil area is small, overlarge bending moment may cause exceeding transverse deformation for the shield tunnel and cause structural diseases and waterproof failure at the longitudinal segment joints.
Dawei Huang +5 more
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Applied Sciences, 2022 A prediction model of enclosure structure deformation caused by the excavation of foundation pit is established. Based on the virtual image technique, the soil deformation caused by sidewall deformation is calculated.
Zhe Wang +4 more
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Centrifuge model test of parallel shield underneath high-speed railway tunnel [PDF]
Archives of Civil Engineering, 2022 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 ...
Ruizhen Fei +4 more
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