因岩土断裂的萌生和扩展是引起岩石结构破坏的主要原因，这是国内外研究人员的共识。因此，岩石断裂过程的详细观测为岩石力学和岩石工程提供了帮助。然而，岩石断裂力学存在两个基本的困难：①难以对岩石断裂进行全面、准确、细致的观察；②难以进行复杂条件下岩石断裂过程的实验模拟。本书应用数字图像相关（DIC）的光学技术来研究岩石破裂过程和相关的应用。DIC是一种基于目标在试件表面的跟踪来精确确定位移的技术。为了模拟原位岩石工程的复杂情况，本书给出了三个重点：第一个是模式I、混合模式和模式II载荷下的断裂过程。本书分为五个部分。第一部分介绍了声发射技术及其相关技术；第二部分为不同加载方式下的岩石断裂过程；第三部分主要研究了岩石在压缩作用下的断裂过程；第四部分介绍了热效应对岩石破裂过程的工程应用；最后，第五部分给出了另一种特殊的工程应用，哈克岩石隧道的剥落过程。本书适合相关高校、科研院所、企事业单位从事岩土力学与工程的科研人员、设计人员参考。

Chapter 1 Introduction
1.1 Rock Fracture Mechanics
1.2 Cohesive Zone Model
1.3 Fracture Initiation and Propagation under Compression
1.4 Experimental Characterizations of Rock Fracture
1.4.1 Three-Point Bending
1.4.2 Uniaxial Compression
Chapter 2 Image Tracking Techniques
2.1 Historical Development
2.2 Digital Image Correlation
2.2.1 Basics of DIC
2.2.2 Matching Approaches of DIC
2.3 Particle Image Velocimetry
2.3.1 Basics of PIV
2.3.2 Matching Approaches of PIV
2.4 Differences between DIC and PIV
2.5 Practical Considerations
2.6 Specimen Preparation and DIC System Calibration
2.6.1 Speckle Pattern Preparation
2.6.2 DIC System Calibration
Chapter 3 Rock Fracture Initiation and Propagation under Different Loading Conditions
3.1 Testing Material， Loading and Imaging Systems
3.1.1 Berea Sandstone and Specimen Geometry
3.1.2 Loading， Controlling and Imaging Systems
3.2 Rock Fracture Initiation and Propagation under Mode I Loading
3.2.1 Theoretical Interpretation
3.2.2 Smooth Boundary Specimens
3.2.3 Center Notch Specimens
3.2.4 Specimens with Large Radius Notch
3.2.5 Discussion
3.3 Rock Fracture Initiation and Propagation under Mixed-mode Loading
3.3.1 Testing Methods
3.3.2 Specimen Geometry
3.3.3 Eccentric Notch Specimens-20% Position
3.3.4 Eccentric Notch Specimens-30% Position
3.3.5 Eccentric Notch Specimens-40% Position
3.3.6 Summary
Chapter 4 Influence of Flaw on Rock Fracturing under Compression
4.1 Introduction
4.2 The Extended Digital Image Correlation Method
4.2.1 XDIC Method
4.2.2 Parametric Sensitivity Analysis
4.3 Experimental Study on Cracking Behaviors from A Flaw without Filler
4.3.1 Rock Specimens
4.3.2 Rock-like Specimens
4.4 Experimental Study on Cracking Behaviors from A Flaw with Filler
4.4.1 Specimen Preparation
4.4.2 Specimen Testing
4.4.3 Experimental Results
4.4.4 Summary
4.5 Discussion
4.6 Conclusion
Chapter 5 Applications
5.1 Thermal Effect on Fracture Behavior of Beishan Granite
5.1.1 Engineering Background
5.1.2 Specimen Preparation and Testing Procedure
5.1.3 Mechanical Test Results
5.1.4 Thermal Effect on Fracture Initiation
5.1.5 Thermal Effect on the FPZ Size
5.1.6 Thermal Effect on the Critical Opening Displacement
5.1.7 Thermal Effect on Fracture Toughness Measurement
5.1.8 Thermal Damage Mechanism in Beishan Granite
5.1.9 Conclusions
5.2 Cyclic Thermal Shock Effect on Surface Crack
5.2.1 Engineering Background
5.2.2 Experimental Design of Cyclic Thermal Shock
5.2.3 Surface and Internal Zones
5.2.4 Crack Characteristics of Surface Zone
5.2.5 Quantitative Description of Deterioration Degree of Surface Zone Based on Cohesive Zone odel
5.2.6 Conclusions
Chapter 6 Concluding Remarks
References
Figure