Geotechnical engineering of dams. (2014)

• Record Type: Book
• Further Information: Note: Robin Fell, Patrick MacGregor, David Stapledon, Graeme Bell, Mark Foster.
• Authors: Fell, Robin; MacGregor, Patrick; Stapledon, David; (Chartered surveyor), Bell, Graeme; Foster, Mark
• Contents: Author Biographies 1 Introduction; 1.1 Outline of the book; 1.2 Types of embankment dams and their main features; 1.3 Types of concrete dams and their main features 2 Key geological issues; 2.1 Basic definitions; 2.2 Types of anisotropic fabrics; 2.3 Defects in rock masses; 2.3.1 Joints; 2.3.2 Sheared and crushed zones (faults); 2.3.3 Soil infill seams (or just infill seams); 2.3.4 Extremely weathered (or altered) seams; 2.3.5 The importance of using the above terms to describe defects in rock; 2.4 Defects in soil masses; 2.5 Stresses in rock masses; 2.5.1 Probable source of high horizontal stresses; 2.5.2 Stress relief effects in natural rock exposures; 2.5.3 Effects in claystones and shales; 2.5.4 Special effects in valleys; 2.5.5 Rock movements in excavations; 2.6 Weathering of rocks; 2.6.1 Mechanical weathering; 2.6.2 Chemical decomposition; 2.6.3 Chemical weathering; 2.6.3.1 Susceptibility of common minerals to chemical weathering; 2.6.3.2 Susceptibility of rock substances to chemical weathering; 2.6.4 Weathered rock profiles and their development; 2.6.4.1 Climate and vegetation; 2.6.4.2 Rock substance types and defect types and pattern; 2.6.4.3 Time and erosion; 2.6.4.4 Groundwater and topography; 2.6.4.5 Features of weathered profiles near valley floors; 2.6.5 Complications due to cementation; 2.7 Chemical alteration; 2.8 Classification of weathered rock; 2.8.1 Recommended system for classification of weathered rock substance; 2.8.2 Limitations on classification systems for weathered rock; 2.9 Rapid weathering; 2.9.1 Slaking of mudrocks; 2.9.2 Crystal growth in pores; 2.9.3 Expansion of secondary minerals; 2.9.4 Oxidation of sulphide minerals; 2.9.4.1 Sulphide oxidation effects in rockfill dams – some examples; 2.9.4.2 Possible effects of sulphide oxidation in rockfill dams ; 2.9.4.3 Sulphide oxidation – implications for site studies; 2.9.5 Rapid solution; 2.9.6 Surface fretting due to electro-static moisture absorption; 2.10 Landsliding at dam sites; 2.10.1 First-time and “reactivated’’ slides; 2.10.1.1 Reactivated slides; 2.10.1.2 First-time slides; 2.10.2 Importance of early recognition of evidence of past slope instability at dam sites; 2.10.3 Dams and landslides: Some experiences; 2.10.3.1 Talbingo Dam; 2.10.3.2 Tooma Dam; 2.10.3.3 Wungong Dam; 2.10.3.4 Sugarloaf Dam; 2.10.3.5 Thomson Dam; 2.11 Stability of slopes around storages; 2.11.1 Vital slope stability questions for the feasibility and site selection stages; 2.11.1.1 Most vulnerable existing or proposed project features, and parts of storage area? – Question 1; 2.11.1.2 Currently active or old dormant landslides? – Questions 2 and 4 to 7; 2.11.1.3 Areas where first-time landsliding may be induced (Questions 3 to 7); 2.11.1.4 What is the likely post failure velocity and travel distance?; 2.11.1.5 What is the size of impulse waves which may be created?; 2.12 Watertightness of storages; 2.12.1 Models for watertightness of storages in many areas of non-soluble rocks; 2.12.2 Watertightness of storage areas formed by soluble rocks; 2.12.3 Features which may form local zones of high leakage, from any storage area; 2.12.4 Watertightness of storages underlain by soils; 2.12.5 Assessment of watertightness; 2.12.5.1 Storages in non-soluble rock areas – assessment of watertightness; 2.12.5.2 Storages in soluble rock areas – assessment of watertightness; 2.12.5.3 Storages formed in soils – assessment of watertightness; 2.12.6 Methods used to prevent or limit leakages from storages 3 Geotechnical questions associated with various geological environments; 3.1 Granitic rocks; 3.1.1 Fresh granitic rocks, properties and uses; 3.1.2 Weathered granitic rocks, properties, uses and profiles; 3.1.3 Stability of slopes in granitic rocks; 3.1.4 Granitic rocks: check list; 3.2 Volcanic rocks (intrusive and flow); 3.2.1 Intrusive plugs, dykes and sills; 3.2.2 Flows; 3.2.2.1 Flows on land; 3.2.2.2 Undersea flows; 3.2.3 Alteration of volcanic rocks; 3.2.4 Weathering of volcanic rocks; 3.2.5 Landsliding on slopes underlain by weathered basalt; 3.2.6 Alkali-aggregate reaction; 3.2.7 Volcanic rocks (intrusive and flow) check list of questions; 3.3 Pyroclastics 1; 3.3.1 Variability of pyroclastic materials and masses; 3.3.2 Particular construction issues in pyroclastics; 3.3.3 Pyroclastic materials – check list of questions; 3.4 Schistose rocks; 3.4.1 Properties of fresh schistose rock substances; 3.4.2 Weathered products and profiles developed in schistose rock; 3.4.3 Suitability of schistose rocks for use as filter materials, concrete aggregates and pavement materials; 3.4.4 Suitability of schistose rocks for use as rockfill; 3.4.5 Structural defects of particular significance in schistose rocks; 3.4.5.1 Minor faults developed parallel and at acute angles to the foliation; 3.4.5.2 Kink bands; 3.4.5.3 Mica-rich layers; 3.4.6 Stability of slopes formed by schistose rocks; 3.4.7 Schistose rocks – check list of questions; 3.5 Mudrocks; 3.5.1 Engineering properties of mudrocks; 3.5.2 Bedding-surface faults in mudrocks; 3.5.3 Slickensided joints or fissures; 3.5.4 Weathered products and profiles in mudrocks; 3.5.5 Stability of slopes underlain by mudrocks; 3.5.6 Development of unusually high pore pressures; 3.5.7 Suitability of mudrocks for use as construction materials; 3.5.8 Mudrocks – check list of questions; 3.6 Sandstones and related sedimentary rocks; 3.6.1 Properties of the rock substances; 3.6.2 Suitability for use as construction materials ; 3.6.3 Weathering products; 3.6.4 Weathered profile and stability of slopes; 3.6.5 Sandstones and similar rocks – list of questions; 3.7 Carbonate rocks; 3.7.1 Effects of solution; 3.7.1.1 Rock masses composed of dense, fine grained rock substances comprising more than 90% of carbonate (usually Category O); 3.7.1.2 Rock masses composed of dense fine grained rock substance containing 10% to 90% of carbonate (usually Category O); 3.7.1.3 Rock masses composed of porous, low density carbonate rock substance (usually Category Y); 3.7.2 Watertightness of dam foundations; 3.7.2.1 Dams which have experienced significant leakage problems; 3.7.3 Potential for sinkholes to develop beneath a dam, reservoir or associated works; 3.7.4 Potential for continuing dissolution of jointed carbonate rock in dam foundations; 3.7.5 Potential for continuing dissolution of aggregates of carbonate rock particles and of permeable carbonate substances (Category O carbonate, in each case); 3.7.6 Discussion – potential for continuing dissolution of carbonate rocks in foundations; 3.7.6.1 Category O carbonate rocks; 3.7.6.2 Category Y carbonate rocks; 3.7.7 Potential problems with filters’ composed of carbonate rocks; 3.7.7.1 Category O carbonate rocks; 3.7.7.2 Category Y carbonate materials; 3.7.8 Suitability of carbonate rocks for embankment materials; 3.7.9 Suitability of carbonate rocks for concrete and pavement materials; 3.7.10 Stability of slopes underlain by carbonate rocks; 3.7.11 Dewatering of excavations in carbonate rocks; 3.7.12 Carbonate rocks – check list of questions; 3.8 Evaporites; 3.8.1 Performance of dams built on rocks containing evaporites; 3.8.2 Guidelines for dam construction at sites which contain evaporites; 3.8.3 Evaporites – checklist of questions; 3.9 Alluvial soils; 3.9.1 River channel deposits; 3.9.2 Open-work gravels; 3.9.3 Oxbow lake deposits; 3.9.4 Flood plain, lacustrine and estuarine deposits; 3.9.5 Use of alluvial soils for construction; 3.9.6 Alluvial soils, list of questions; 3.10 Colluvial soils; 3.10.1 Occurrence and description; 3.10.1.1 Scree and talus; 3.10.1.2 Slopewash soils; 3.10.1.3 Landslide debris; 3.10.2 Properties of colluvial soils; 3.10.2.1 Scree and talus; 3.10.2.2 Slopewash; 3.10.2.3 Landslide debris; 3.10.3 Use as construction materials; 3.10.4 Colluvial soil – list of questions; 3.11 Laterites and lateritic weathering profiles; 3.11.1 Composition, thicknesses and origin of lateritic weathering profiles; 3.11.2 Properties of lateritic soils; 3.11.3 Use of lateritic soils for construction; 3.11.4 Karstic features developed in laterite terrain; 3.11.5 Recognition and interpretation of silcrete layer; 3.11.6 Lateritic soils and profiles – list of questions; 3.12 Glacial deposits and landforms; 3.12.1 Glaciated valleys <BR&g
• Edition: Second edition
• Publisher Details: Boca Raton : CRC Press
• Publication Date: 2014
• Extent: 1 online resource
• Subjects: 627.8; Dams -- Design and construction
• Languages: English
• ISBNs: 9780203387313
• Related ISBNs: 9781138000087
• Notes: Note: Includes bibliographical references and index.; Note: Description based on CIP data; item not viewed.
• Access Rights: Legal Deposit; Only available on premises controlled by the deposit library and to one user at any one time; The Legal Deposit Libraries (Non-Print Works) Regulations (UK).
• Access Usage: Restricted: Printing from this resource is governed by The Legal Deposit Libraries (Non-Print Works) Regulations (UK) and UK copyright law currently in force.