| 摘要 | 第4-5页 |
| Abstract | 第5-6页 |
| List of symbols | 第11-18页 |
| Chapter 1 Introduction | 第18-31页 |
| 1.1 The research background and significance | 第18-19页 |
| 1.2 The prediction of ground movements due to tunneling | 第19-29页 |
| 1.2.1 Empirical methods | 第20-24页 |
| 1.2.2 Analytical solutions | 第24-26页 |
| 1.2.3 Numerical analyses methods | 第26-29页 |
| 1.2.3.1 Two-dimensional Finite Elements Models (2D-FEM) analyses | 第27-28页 |
| 1.2.3.2 Three-dimensional Finite Elements Models (3D-FEM) analyses | 第28-29页 |
| 1.3 The main research contents of this thesis | 第29-31页 |
| Chapter 2 Analysis of ground settlement and stability of excavation face | 第31-55页 |
| 2.1 Introduction | 第31页 |
| 2.2 Shield construction principle | 第31-33页 |
| 2.2.1 Development of Shield Method | 第31-32页 |
| 2.2.2 Principle of Shield Method | 第32-33页 |
| 2.3 Characteristics of ground settlement caused by shield tunneling | 第33-35页 |
| 2.3.1 The ground surface settlement before shield arrival | 第34页 |
| 2.3.2 Ground settlement due to shield construction | 第34页 |
| 2.3.3 Post consolidation settlement | 第34-35页 |
| 2.4 Causes for construction induced settlements | 第35-38页 |
| 2.4.1 Case of shield-driven tunnels | 第35-37页 |
| 2.4.1.1 Settlements ahead and above the face | 第36页 |
| 2.4.1.2 Settlements along the shield | 第36页 |
| 2.4.1.3 Settlements at the shield tail | 第36-37页 |
| 2.4.1.4 Settlements due to lining deformation | 第37页 |
| 2.4.2 Effect of groundwater | 第37-38页 |
| 2.5 Analysis of lateral and longitudinal ground surface settlement | 第38-45页 |
| 2.5.1 Analysis of transversal ground surface settlement | 第39-42页 |
| 2.5.1.1 Analysis of vertical settlement in the transversal direction | 第39-41页 |
| 2.5.1.2 Analysis of Horizontal displacement in the transversal direction | 第41-42页 |
| 2.5.2 Analysis of longitudinal ground surface settlement | 第42-45页 |
| 2.5.2.1 Analysis of vertical settlement in the longitudinal direction | 第42-44页 |
| 2.5.2.2 Analysis of horizontal displacement in the longitudinal direction | 第44-45页 |
| 2.6 Subsurface movement | 第45-46页 |
| 2.7 stability of excavation face | 第46-53页 |
| 2.7.1 Limiting Equilibrium Methods (LEM) | 第47-50页 |
| 2.7.1.1 Method of Broms and Bennemark (1967) | 第47页 |
| 2.7.1.2 Method of Krause (1987) | 第47-48页 |
| 2.7.1.3 Method of Anagnostou and Kovari (1996) | 第48-50页 |
| 2.7.2 Limiting Analysis Methods (LAM) | 第50-53页 |
| 2.7.2.1 Method of Davis et al. (1980) | 第50-51页 |
| 2.7.2.2 Method of Leca and Dormieux (1990) | 第51-53页 |
| 2.8 Brief Summary | 第53-55页 |
| Chapter 3 Numerical modelling on ground settlement induced by shield tunnel method | 第55-73页 |
| 3.1 Introduction | 第55页 |
| 3.2 Presentation of Nanjing three Yangtze River tunnel Project | 第55-60页 |
| 3.2.1 Project overview | 第55-57页 |
| 3.2.2 Geological Situation | 第57-59页 |
| 3.2.3 Weather conditions | 第59页 |
| 3.2.4 Hydrogeological condition | 第59-60页 |
| 3.3 Computational models | 第60-61页 |
| 3.4 Finite Element Modeling | 第61-65页 |
| 3.4.1 Ground modeling | 第61-62页 |
| 3.4.2 Tunnel lining modeling | 第62-63页 |
| 3.4.3 Grout modeling | 第63-64页 |
| 3.4.4 Shield machine modeling | 第64-65页 |
| 3.5 Mesh and Elements types | 第65-67页 |
| 3.6 Boundary conditions and loading | 第67-69页 |
| 3.6.1 Boundary conditions | 第67-69页 |
| 3.6.2 Loading | 第69页 |
| 3.7 Numerical simulation method | 第69-72页 |
| 3.8 Brief Summary | 第72-73页 |
| Chapter 4 Simulation results and field measurement data | 第73-116页 |
| 4.1 Introduction | 第73页 |
| 4.2 Field measurement data | 第73-81页 |
| 4.2.1 Monitoring program | 第73-74页 |
| 4.2.2 Field result analysis | 第74-78页 |
| 4.2.2.1 Longitudinal settlement analysis | 第74-77页 |
| 4.2.2.2 Lateral settlement analysis | 第77-78页 |
| 4.2.3 Comparison of field measurement and empirical prediction | 第78-81页 |
| 4.3 Simulation results and analysis | 第81-112页 |
| 4.3.1 Analysis of ground settlement caused by shield construction | 第81-88页 |
| 4.3.1.1 Vertical settlement in the transversal direction | 第83-85页 |
| 4.3.1.2 Horizontal displacement in the transversal direction | 第85-87页 |
| 4.3.1.3 Vertical settlement in the longitudinal direction | 第87-88页 |
| 4.3.2 Comparison of numerical simulation and empirical prediction | 第88-91页 |
| 4.3.3 Analysis of Ground Settlement under different tunnel buried depth | 第91-101页 |
| 4.3.3.1 Vertical settlement under different tunnel buried depths | 第92-94页 |
| 4.3.3.2 Horizontal displacement under different tunnel buried depths | 第94-97页 |
| 4.3.3.3 Comparison of ground settlement between the various cases of tunnelburied depth | 第97-101页 |
| 4.3.4 Analysis of the effect of shield tail grouting on ground settlement | 第101-112页 |
| 4.3.4.1 Vertical settlement for each Grout Condition | 第103-105页 |
| 4.3.4.2 Horizontal displacement for each Grout Condition | 第105-107页 |
| 4.3.4.3 Comparison of ground settlement between the various cases of Groutcondition | 第107-112页 |
| 4.4 Comparison of numerical simulation and field measurement | 第112-114页 |
| 4.5 Brief summary | 第114-116页 |
| Conclusions | 第116-119页 |
| 结论 | 第119-121页 |
| References | 第121-128页 |
| Acknowledgement | 第128-129页 |
| Resume | 第129-130页 |
