本书是作者关于岩土塑性力学长期教学与科研工作成果的凝聚。力图深入浅出的阐述岩土塑性基本概念、静动力基本力学特性、非线性与经典塑性理论、岩土屈服面理论、硬化模型、流动法则与加卸载准则、主应力轴旋转计算理论，以及岩土极限分析及其最新进展-极限有限元法。较为详细地介绍了代表性的岩土静动力本构模型。期冀读者能对岩土基本力学特性与本构模型有深入系统的认识，可以针对具体工程问题与岩土特性，选用与建立合理本构模型。

1 Introduction
1.1 BasicConcept
1.1.1 Plastic Deformation
1.1.2 Plastic Mechanics
1.1.3 Plastic Mechanics of Geomaterial
1.2 The Basic Hypothesis of Plastic Mechanics of Geomaterial
1.3 The Constitutive Model
1.3.1 What Is Model
1.3.2 Model in Classical Soil Mechanics
1.4 Development History for Plastic Mechanics of Geomaterial
References
2 Stress and Strain and Its Basic Equations
2.1 Continuum Model
2.2 Stress Tensor
2.3 Decomposition of Stress Tensor and Its Invariants
2.3.1 Decomposition of Stress Tensor
2.3.2 Other Representation of Stress Invariant
2.4 Deformation and Strain
2.5 The Invariant of Strain Tensor
2.6 Decomposition of Strain Tensor and Its Invariants
2.6.1 Decomposition of Strain Tensor
2.6.2 Other Representation of Strain Invariant
2.7 Stress Path and Strain Path
2.7.1 Expression of Stress Path
2.7.2 The Realization of Stress Path
2.7.3 Total Stress Path and Effective Stress Path
2.7.4 Strain Path
2.8 Basic Equations of Plastic Mechanics of Geomaterial
2.8.1 Basic Equations
2.8.2 Boundary Condition and Initial Value
References
3 The Basic Mechanical Characteristics of the Geomaterial
3.1 Pressure-Hardening
3.2 Yield Caused by Hydrostatic Pressure
3.3 Dilatancy
3.4 Plastic Deformation Dependent on Stress Path
3.5 Other Important Characteristics
3.6 Mechanical Characteristic at Small Strain of Geomaterial
3.7 Mechanical Difference for the Natural and Remoulded Soil
References
4 The Elastic Model of Geomaterial
4.1 Nonlinear Elastic Theory
4.1.1 Variable Elasticity Theory
4.1.2 Hyperelastic Theory
4.1.3 Hypoelastic Theory
4.2 The Anisotropic Elastic Theory
4.2.1 Isotropic Elastic Constitutive Model
4.2.2 The Elastic Constitutive Model with Cross-Anisotropy
4.3 The Isotropic Nonlinear Elastic Model of Geomaterial
4.3.1 The Basic Principle of Duncan-Chang Model
4.3.2 Two Elastic Function of Duncan-Chang Model
4.3.3 Review of Duncan-Chang Model
4.4 The Elastic Model with Transverse Isotropy
4.4.1 Xiao-nan Gong Model
4.4.2 Graham Model
References
5 Classical Plastic Theory
5.1 Potential Function and Thermodynamics
5.1.1 First Law of Thermodynamics
5.1.2 Second Law of Thermodynamics
5.1.3 Thermodynamics Potential and Dissipative Inequality
5.2 Plastic Postulate
5.2.1 Drucker's Stability Postulate
5.2.2 Inference of Drucker's Postulate
5.3 The Constitutive Model Based on the Classic Plastic Theory
5.3.1 The Framework of the Classic Plastic Theory
5.3.2 Commonly Used Models
References
6 The Development of the Plastic Theory of Geomaterial
6.1 Study of Several Basic Problems in Plastic Theory of Geomaterial
6.1.1 Proving that Drucker Postulate Is Unsuitable for Geomaterial
6.1.2 Proving that the Classic Plastic Theory Is Unsuitable for Geomaterial
6.1.3 Study of Several Key Problems in the Plastic Theory of Geomaterial
6.2 Development of the Yield Surface for Geomaterial
6.2.1 Significance of Yield Surface
6.2.2 Yield of Geomaterial
6.2.3 The Shear Yield Surface
6.2.4 Volumetric Yield Criterion
6.2.5 Yield Surface of Overconsolidated Soil
6.2.6 Part Yield
6.3 Hardening Laws
6.3.1 Hardening Theory
6.3.2 Hardening Model
6.3.3 Isotropic Hardening
6.3.4 Kinematic Hardening
6.3.5 Mixed Hardening
6.3.6 The General Form of Hardening Model
6.4 Plastic Flow Rule
6.4.1 Associated Flow Rule
6.4.2 Nonassociated Flow Rule
6.4.3 Mixed Flow Rule
6.5 Loading-Unloading Rule
6.5.1 Loading-Unloading Rule Based on Yield Surface
6.5.2 Loading-Unloading Rule with Stress Type
6.5.3 Loading-Unloading Rule with Strain Style
References
7 The Static Elastoplastic Model for Geomate