节理岩体各向异性特性:理论、试验与数值分析

Chapter 1 Overview References Chapter 2 On the Modelling of the Three-dimensional Point Cloud Based on the Binocular Stereovision and Structures Identification 2.1 Introduction 2.2 Calibration of the binocular cameras 2.2.1 Calibration of the intrinsic parameters 2.2.2 Optimal measuring distances 2.3 Analysis of 3D point cloud modelling 2.3.1 Photogrammetric analysis 2.3.2 Recognition of structures 2.4 Discussions 2.5 Conclusions References Chapter 3 Semi-automatic Discontinuity Identification of Geometric Information Using 3D Point Clouds 3.1 Introduction 3.2 Methodology 3.2.1 Normal vector calculation 3.2.2 Identification of discontinuity groups 3.2.3 Elimination of noise points 3.3 Identification of point clusters 3.3.1 Point cluster analysis 3.3.2 Case Ⅰ: Slope face in Miaogou open pit 3.4 Application and discussions 3.4.1 Underground case studies 3.4.2 Case Ⅳ: Application in an open pit mine 3.4.3 Consuming time of varied 3DPC models 3.5 Conclusions References Chapter 4 Theoretical Investigation of Deformation Characteristics of Stratified Rocks Considering Geometric and Mechanical Variability 4.1 Introduction 4.2 Constitutive model of stratified rocks 4.2.1 Anisotropic constitutive relationships 4.2.2 The constitutive relationship 4.3 Results and discussion 4.3.1 Equivalent elastic modulus of rock mass 4.3.2 Equivalent Poisson's ratio of rock mass 4.3.3 Verifications and discussions 4.4 Conclusions References Chapter 5 Characterization on Jointed Rock Masses Based on PFC2D 5.1 Introduction 5.2 Generation of a fracture system model by ShapeMetriX3D 5.2.1 Collection of structure data 5.2.2 Characteristics of the discontinuities 5.3 Fracture system modeling for PFC2D 5.3.1 Fundamental principles of Monte-Carlo 5.3.2 Fracture system generation and validation 5.4 Conclusions References Chapter 6 Scale Effect on Elasticity, Strength and Failure Pattern of Jointed Rock under Uniaxial Compression 6.1 Introduction 6.2 Controlled laboratory experiments for PFC calibration 6.3 Mechanical behavior of jointed rock mass 6.3.1 Strength parameters for smooth joint …… Chapter 7 Evaluation of the Anisotropy and Directionality of a Jointed Rock Mass under Numerical Direct Shear Tests Chapter 8 Anisotropy and Directionality of Tensile Behaviours of a Jointed Rock Mass Subjected to Numerical Brazilian Tests Chapter 9 A Digital Image Based Discrete Fracture Network Model and ItsNumerical Investigation of Direct Shear Tests Chapter 10 Influence of Joint Geometry and Roughness on the Multiscale Shear Behaviour of Fractured Rock Mass Using Particle Flow Code Chapter 11 Anisotropic Mechanical Properties of Surrounding Layered Rocks under Excavation Considering the Joint Roughness Chapter 12 A Rough Discrete Fracture Network Model for Geometrical Modeling of Jointed Rock Masses and the Anisotropic Behaviours Chapter 13 Characterization Method of Complex Rough Discrete Fracture Network Models and Mechanical Behaviour Chapter 14 Shear Behavior of Synthetic Rough Jointed Rock Mass with 3D-printed Jointing Chapter 15 Anisotropic Mechanical Properties of Stratified Rock Slope: An Experimental Study and Numerical Simulation Chapter 16 Anisotropic Characteristics of Jointed Rock Mass: A Case Study at Shirengou Iron Ore Mine in China Chapter 17 A Model of Anisotropic Property of Seepage and Stress forJointed Rock Mass Chapter 18 Deformational Behavior of Underground Opening Using a Stress-seepage Coupled Model Considering Anisotropic Characteristics Chapter 19 Anisotropic Behavior of the Seepage-stress Coupling Mechanical Model of Coal Pillars of Underground Reservoirs