Analysis on the Influence of Cross Tunnel Construction on the Deformation of the Existing High-Speed Railway Tunnel

Pan, Weidong; Gao, Zhiyu; Cheng, Zheng; Gong, Zhe

doi:10.1007/s10706-018-0553-4

Cited by 12 publications

(5 citation statements)

References 3 publications

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“…The lining of high-speed railway tunnel is constructed by construction joints along the longitudinal direction. In theoretical or numerical analysis, the lining is usually simplified as a continuous structure [24]. This kind of underground continuous beam has the effect of reducing the surface deformation caused by tunnel excavation, which is usually considered as a shielding effect [22].…”

Section: Introductionmentioning

confidence: 99%

Mechanical characteristics of twin tunnel underneath construction on existing high-speed railway tunnel

2023

Archives of Civil Engineering

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The running speed of high-speed trains in the tunnel is as high as 350 km, which is very sensitive to the construction disturbance of the new shield tunnel. Therefore, it is of positive significance to study the influence of shield tunneling on existing high-speed railway lines and tunnel structures and control standards. Combined with centrifuge test and three-dimensional numerical simulation, the dynamic response of shield tunnel undercrossing existing high-speed railway tunnel is studied, and the influence of settlement joint and steel pipe pile reinforcement on existing tunnel is analyzed. Studies have shown that the existence of existing tunnels will reduce the surface settlement caused by tunnel excavation, but this shielding effect will be reduced if the influence of construction joints is considered. Therefore, if the construction joint is not considered in the numerical calculation, the ground deformation will be underestimated and the mechanical performance of the existing tunnel structure will be overestimated. In addition, steel pipe piles can effectively control the settlement of existing tunnels.

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Section: Introductionmentioning

confidence: 99%

Mechanical characteristics of twin tunnel underneath construction on existing high-speed railway tunnel

2023

Archives of Civil Engineering

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“…Secondly, railway transportation engineering covers an extensive range of disciplines, and it is hard to smoothly carry out the collaborative work between various departments. irdly, the transportation flow increases year by year, hampering the operation and maintenance of railway stations [6]. Recently, with the popularization of computer and information technology, railway construction is gradually developing in the direction of globalization, intelligence, and virtualization [7].…”

Section: Introductionmentioning

confidence: 99%

Visualization of Railway Transportation Engineering Management Using BIM Technology under the Application of Internet of Things Edge Computing

Zhang

2022

Wireless Communications and Mobile Computing

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In the past, railway line planning usually required engineers to design based on their own experience after a series of field visits, leading to heavy workload and low efficiency. Moreover, operation and maintenance management is more complicated due to an abundance of railway station equipment. Based on the above problems, this paper first puts forward the railway transportation line planning and design method based on Building Information Modeling (BIM) technology. Besides, LocaSpace Viewer realizes the three-dimensional (3D) visual scene modeling of the railway environment to improve the efficiency of railway line planning and design. Secondly, the railway station’s visual operation and maintenance management system is constructed via BIM Technology. Besides, the Internet of Things (IoT) is combined with edge computing and deep learning technology to build a 3D model of station equipment, collect data in real time, and analyze data efficiently. Finally, the design effect of the model, the performance of the visual management system, and the test results of network transmission delay are displayed and analyzed. The results show that BIM can construct the 3D visualization model with high fidelity for the railway environment. This model can get a reasonable line planning scheme and analyze its feasibility, provide a reliable basis for engineers to plan railway transportation lines, and improve design efficiency. In addition, the GPU occupation rate, CPU occupation rate, and memory occupation rate of the operation and maintenance management system in different operating environments are within the standard range; when multiple clients access the system, the system data access delay is 100% less than 8 ms, which has good performance. Furthermore, the performance of the IoT transmission data real-time scheduling model and the edge computing optimization algorithm applied to this system is better than other popular methods, which can significantly improve the operation efficiency of the system. This study aims to enhance the efficiency of railway transportation line planning and station operation and maintenance management with the help of digital technologies.

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“…Li et al [17] carried out numerical simulation and analysis of the shield tunnel under the pile foundation. Pan et al [18] analyzed the effect of construction on the deformation of existing high-speed railway tunnels. Liu et al [19] analyzed the mechanical properties and land subsidence characteristics of the supporting structure during the construction of the subway station.…”

Section: Introductionmentioning

confidence: 99%

Study on Settlement and Deformation of Urban Viaduct Caused by Subway Station Construction under Complicated Conditions

Luo

Cheng

Bai

et al. 2021

Advances in Civil Engineering

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With the rapid development of urbanization, the speed of constructing urban underground space and ground foundation engineering is accelerated. With the shortage of land resources, the distance between underground engineering and surface engineering is getting closer and closer, and the contradictions and problems between projects are becoming more and more serious. Based on the new subway station, this paper passes the existing urban viaduct in a short distance. The settlement and deformation of pile foundation and buildings caused by the excavation of the subway station is studied by using ROCSCIENCE software and site monitoring method. The potential risk sources around the station are pile foundations 18.5 m away, residential buildings 15 m away, storm water pipes 7.3 m away, and high-pressure gas pipes at 5.6 m. According to the construction requirements of pile foundation settlement deformation during metro station excavation, we set up construction standards. The settlement of the buildings and pipelines around the metro station should not exceed 3 mm, and the horizontal displacement should not exceed 2 mm. The diaphragm wall is adopted to surround the subway station, and the ground is reinforced by advanced grouting. The results show that, during the excavation of the foundation pit of the metro station, the ground and the building will have obvious settlement deformation and the depth of deformation can reach 9 mm, which is more than the allowable value. The settlement deformation of the ground and the surrounding buildings can be controlled within 3 mm by strengthening the foundation pit support and ground advance-grouting reinforcement. The control of construction deformation can meet the construction requirements.

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Analysis on the Influence of Cross Tunnel Construction on the Deformation of the Existing High-Speed Railway Tunnel

Cited by 12 publications

References 3 publications

Mechanical characteristics of twin tunnel underneath construction on existing high-speed railway tunnel

Mechanical characteristics of twin tunnel underneath construction on existing high-speed railway tunnel

Visualization of Railway Transportation Engineering Management Using BIM Technology under the Application of Internet of Things Edge Computing

Study on Settlement and Deformation of Urban Viaduct Caused by Subway Station Construction under Complicated Conditions

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