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Dynamics of Rail Transit Tunnel Systems
1st Edition - April 4, 2019
Author: Shunhua Zhou
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Dynamics of Rail Transit Tunnel Systems develops the dynamic theory of a rail transit tunnel system and provides research methods for the evaluation of long-term settlement of… Read more
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Dynamics of Rail Transit Tunnel Systems develops the dynamic theory of a rail transit tunnel system and provides research methods for the evaluation of long-term settlement of rail transit tunnels in soft soil, the service performance of tunnel structures, and the characterization of environmental vibration induced by trains. In recent years, a large number of rail transit tunnels have been constructed and put into operation, particularly in China. To evaluate the time-dependent degradation of tunnel structures and train-induced environmental vibration, a reliable model must be established to determine the dynamic response of a vehicle-track-tunnel-soil system, hence the introduction of this timely resource.
Provides full theoretical background to help the reader gain an in-depth understanding of the various methods used for dynamic analysis of a rail transit tunnel system
Develops the dynamics theory and method of a rail transit tunnel system under the context of challenging engineering problems
Presents methods for analyzing the dynamic responses of rail transit tunnel-soil systems
Looks at problems that need to be solved in the future and proposes potential directions for future research
Engineers, railway engineers, transportation engineers, mechanical engineers; experts, practitioners, and graduate students in railway transit infrastructures; inspection specialists; geologists
Chapter 1: Introduction1.1 Development of Rail Transit1.2 Characteristics of Underground Railway Systems1.2.1 Source of Vibration1.2.2 Components of Rail Tracks1.2.3 Tunnel Structure1.3 Typical Engineering Concerns Related to the Dynamics of Rail Transit Tunnel Systems1.3.1 Long-Term Settlement and Induced Structural Damage of Metro Tunnels in Soft Soils1.3.2 Environmental Vibration Problems1.4 Existing Approaches and Models1.5 Content and Scope of This BookReferencesChapter 2: A Multilayer Cylindrical Tunnel Model for Calculating the DynamicResponse Subjected to Vertical and Horizontal Moving Loads Inside a Circular Tunnel2.1 Introduction2.2 Governing Equations of the Shell-Cylinder Model2.2.1 Double Cylindrical Shell Equations2.2.2 Saturated Porous Medium Equations2.2.3 Solution for Particular Boundary Conditions2.3 Simulation Results and Discussion2.3.1 Dynamic Stress of Saturated Soil Subjected to Vertical Moving Loads2.3.2 Effect of Horizontal Load on Dynamic Stress of Saturated SoilsReferencesChapter 3: A Vehicle-Track-Tunnel-Soil Model for Evaluating the Dynamic Response of a Double-Line Underground Railway Tunnelin a Poroelastic Full-Space3.1 Introduction3.2 Model Development for a Railway Tunnel3.2.1 Simulation of a Tunnel in a Poroelastic Full-Space3.2.2 Coupling of the Railway Track3.2.3 Simulation of the Vehicle Load3.3 Simulation Results and Discussion3.3.1 Validation Against Existing Tunnel Model3.3.2 Case Study of a Single-Line Metro Tunnel3.3.3 Case Study of a Double-Line Metro TunnelReferencesChapter 4: Dynamic 2.5D Green’s Function for a Saturated Porous Medium4.1 Introduction4.2 Governing Equations and General Solutions4.2.1 Biot’s Theory: Governing Equations4.2.2 Displacement Potentials and General Solutions4.3 Dynamic 2.5D Green’s Function for a Poroelastic Full-Space4.3.1 Point Load Applied to the Solid Skeleton Along the X-Axis4.3.2 Point Load Applied to the Solid Skeleton Along the Y-Axis4.3.3 Point Load Applied to the Solid Skeleton Along the Z-Axis4.3.4 Dilatation Source Applied Within the Pore Fluid4.4 Dynamic 2.5D Green’s Function for a Poroelastic Half-Space4.4.1 Point Load Applied to the Solid Skeleton Along the X-Axis4.4.2 Point Load Applied to the Solid Skeleton Along the Y-Axis4.4.3 Point Load Applied to the Solid Skeleton Along the Z-Axis4.4.4 Dilatation Source Applied Within the Pore Fluid4.5 Dynamic 2.5D Green’s Function for a Multilayered Poroelastic Half-Space4.6 Numerical Examples4.6.1 Comparison With the 2.5D Green’s Function for an Elastodynamic Half-Space4.6.2 Comparison With the 3D Green’s Function for a Poroelastic Half-Space4.6.3 Comparison With the 3D Green’s Function for a Layered Poroelastic Half-Space4.6.4 Dynamic Response for Point Source in a Multilayered Poroelastic Half-SpaceReferencesChapter 5: 2.5D FE-BE Model for the Prediction of Train-Induced Vibration From a Tunnel in Saturated Soil5.1 Introduction5.2 2.5D Coupled FE-BE Model for the Coupled Tunnel-Soil System5.2.1 2.5D FE Model for a Tunnel5.2.2 2.5D BE Model for the Saturated Soil5.2.3 2.5D FE-BE Coupling for Tunnel
No. of pages: 276
Published: April 4, 2019
Imprint: Academic Press
Paperback ISBN: 9780128183823
eBook ISBN: 9780128183830
Professor in the College of Transportation Engineering at Tongji University, China. He has a long professional career in engineering mechanics and advanced applied engineering technology related to the construction and maintenance of railway transit infrastructure. His research includes the theory and engineering practice of excavation, evaluation of settlement and deformation of railway transit structure, and vibration reduction of railway transit systems. His research team developed a new method of tunnel systems dynamics for the deformation analysis of railway transit structures, and based on this a systematic approach for ground deformation control in the construction of tunnels across operational railways. Using this approach, a tunnel was successfully built for the first time beneath an operating high-speed railway, with a speed of 300km/h.
Affiliations and expertise
Professor, College of Transportation Engineering, Tongji University, China