Hydraulic fracturing in earth-rock fill dams /

• Κύριος συγγραφέας: Wang, Jun-Jie
• Άλλοι συγγραφείς: Jiaotong, Chongqing
• Μορφή: Ηλ. βιβλίο
• Γλώσσα: English
• Έκδοση: Singapore : Wiley, 2014.
• Θέματα: Earth dams.; Dam failures.; Hydraulic fracturing.; TECHNOLOGY & ENGINEERING > Hydraulics.; Electronic books.

Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problems There have been a number of well-studied cases in which dams have failed or been damaged by concentrated leaks for no apparent cause. In some of these experiences, investigators...

Πίνακας περιεχομένων:

• Cover; Title Page; Copyright; Contents; About the Author; Preface; Acknowledgments; Nomenclature; Chapter 1 Introduction; 1.1 Types of Embankment Dam; 1.2 Hydraulic Fracturing; 1.3 Failure of the Teton Dam; 1.4 Erosion Damage of the Balderhead Dam; 1.5 Leakage of the Hyttejuvet Dam; 1.6 Self-Healing of Core Cracks; 1.7 Technical Route for Present Study; 1.8 Summary; References; Chapter 2 Review of Literature; 2.1 Introduction; 2.2 Theories of Hydraulic Fracturing; 2.2.1 Theories Based on Circular Cavity Expansion Theory; 2.2.2 Theories Based on Spherical Cavity Expansion Theory.
• 2.2.3 Theories Based on True Triaxial Stress State Analyses2.2.4 Empirical Formulas; 2.2.5 Theories Based on Fracture Mechanics; 2.3 Laboratory Experimental Studies on Hydraulic Fracturing; 2.3.1 Cylindrical Sample; 2.3.2 Rectangular Sample; 2.4 Field Testing Studies of Hydraulic Fracturing; 2.5 Model Testing Studies of Hydraulic Fracturing; 2.6 Numerical Simulations of Hydraulic Fracturing; 2.7 Analysis Method for Hydraulic Fracturing; 2.8 Summary; References; Chapter 3 Conditions and Mechanisms of Hydraulic Fracturing; 3.1 Introduction; 3.2 Conditions for Hydraulic Fracturing.
• 3.2.1 Crack Located at the Upstream Face of Core3.2.2 Low Permeability of Core Soil; 3.2.3 Rapid Impounding; 3.2.4 Unsaturated Soil Core; 3.3 Mechanical Mechanism of Hydraulic Fracturing; 3.4 Modes of Fracture in Fracture Mechanics; 3.5 Summary; References; Chapter 4 Fracture Toughness and Tensile Strength of Core Soil; 4.1 Introduction; 4.2 Tested Soil; 4.3 Testing Technique on Fracture Toughness; 4.3.1 Testing Method; 4.3.2 Apparatus; 4.3.3 Testing Procedures; 4.3.4 Testing Program; 4.4 Testing Results on Fracture Toughness; 4.4.1 Suitability of Linear Elastic Fracture Mechanics.
• 4.4.2 Influence Factors on Fracture Toughness4.5 Testing Technique on Tensile Strength; 4.5.1 Testing Method and Apparatus; 4.5.2 Calculation of Tensile Strength; 4.5.3 Testing Procedures; 4.5.4 Testing Program; 4.6 Testing Results on Tensile Strength; 4.6.1 Water Content; 4.6.2 Dry Density; 4.6.3 Preconsolidation Pressure; 4.7 Relationship between Fracture Toughness and Tensile Strength; 4.8 Discussions; 4.8.1 Soils from References; 4.8.2 Rocks from References; 4.9 Summary; References; Chapter 5 Fracture Failure Criteria for Core Soil under I-II Mixed Modes; 5.1 Introduction.
• 5.2 Experimental Technique5.2.1 Loading Assembly; 5.2.2 Calculation Theory; 5.2.3 Testing Procedures; 5.2.4 Test Program; 5.3 Testing Results; 5.4 Fracture Failure Criteria; 5.5 Discussions; 5.5.1 Testing Technique; 5.5.2 Failure Criteria; 5.6 Summary; References; Chapter 6 Hydraulic Fracturing Criterion; 6.1 Introduction; 6.2 Failure Criterion; 6.2.1 Simplification of a Crack; 6.2.2 Criterion; 6.3 Cubic Specimen with a Crack; 6.3.1 Calculation of KI; 6.3.2 Calculation of KII; 6.3.3 Calculation of (KI2 + KII2)0.5; 6.3.4 Dangerous Crack Angle; 6.4 Core with a Transverse Crack.