Hydraulic fracturing in earth-rock fill dams / / Jun-Jie Wang

• Autore: Wang Jun-Jie
• Pubblicazione: Singapore : , : John Wiley & Sons, , 2014; ©2014
• Edizione: First edition.
• Descrizione fisica: 1 online resource (277 p.)
• Disciplina: 627/.830289
• Soggetto topico: Earth dams; Dam failures; Hydraulic fracturing
• Altri autori: JiaotongChongqing
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references at the end of each chapters and index.
• Nota di contenuto: 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 Analyses 2.2.4 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 Core 3.2.2 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 Toughness 4.5 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 Technique 5.2.1 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 ; 6.4.1 Calculation of KI
• Sommario/riassunto: 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 concluded that differential settlement cracks were the probable causes, even though no cracks were seen on the surface. In these examples, it was not determined whether the crack was open before the reservoir filled or whether it might have opened after
• Titolo autorizzato: Hydraulic fracturing in earth-rock fill dams
• ISBN: 1-118-72554-9; 1-118-72556-5; 1-118-72555-7
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910139128103321
• Lo trovi qui: Univ. Federico II