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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Effectiveness analysis of a novel rectangular tunnel boring machine with planetary transmission for box jacking [PDF]
Scientific ReportsTraditional rectangular tunnel boring machines have low tunneling efficiency, poor soil mixing effects, which has hindered the construction of long-distance and large-section box jacking projects.
Peng Ma +3 more
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Dynamic response of single pile induced by the vibration of tunnel boring machine in hard rock strata [PDF]
Scientific ReportsDuring metro tunnel construction, Tunnel Boring Machine(TBM) often induces surface and nearby pile vibrations. However, these vibrations are often overlooked due to the short-term passage of the cutterhead beneath the foundation structures.
Rui Wang, You Wang, Bin Yan, Bosong Ding
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Measurement and analysis of surface settlement caused by construction of quasi-rectangular shield tunnel in rich water-sand stratum [PDF]
Scientific ReportsThe study is based on a section of the Zhengzhou Metro Line 8 quasi-rectangular shield tunnel. Field excavation trials were conducted to analyze the surface settlement patterns caused by the construction of a large-section quasi-rectangular shield tunnel
Yong-gang Ding +5 more
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EPB-TBM cutterhead torque and thrust modelling in rock tunnels through an analytical method and TSFS model [PDF]
HeliyonThe analysis of cutterhead torque and thrust force is of utmost importance in the selection of a proper tunnel boring machine (TBM) and in achieving optimal operation of the earth pressure balance (EPB) machine for a specific project.
Hanan Samadi, Jafar Hassanpour
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E-YOLOv4-tiny: a traffic sign detection algorithm for urban road scenarios
Frontiers in Neurorobotics, 2023 IntroductionIn urban road scenes, due to the small size of traffic signs and the large amount of surrounding interference information, current methods are difficult to achieve good detection results in the field of unmanned driving.MethodsTo address the ...
Yanqiu Xiao +11 more
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Rock and Soil Mechanics, 2021 The scientific prediction of the TBM penetration rate is of great significance to the selection of hydraulic tunnel construction methods, construction schedule and cost estimation.
YAN Chang-bin +5 more
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Study of Mechanized Tunnel Boring Machines Performance in Urban Areas [PDF]
رویکردهای نوین در مهندسی عمران, 2018 The need for rapid construction of the tunnel along with the safety of surface structures has increased the use of mechanized tunnel boring machines in the urban environment.
Amir Hasan Rezaie Farie +1 more
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Meikuang Anquan, 2022 In order to solve the problem of large dust production in the heading face and the pollution of other roadways by ventilation and dust discharge, based on the existing long pressure and short extraction ventilation, the combined dedusting scheme of air ...
LIU Huijing
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Edge-Cloud Collaborative Defense against Backdoor Attacks in Federated Learning
Sensors, 2023 Federated learning has a distributed collaborative training mode, widely used in IoT scenarios of edge computing intelligent services. However, federated learning is vulnerable to malicious attacks, mainly backdoor attacks. Once an edge node implements a
Jie Yang +7 more
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