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Hydraulic Fracturing in Earth-rock Fill Dams (2014)
EN NW FE EB DLISBN: 9781118725566 bzw. 1118725565, in Englisch, 67 Seiten, Wiley, neu, Erstausgabe, E-Book, elektronischer Download.
Lieferung aus: Vereinigte Staaten von Amerika, الكتاب الإليكتروني للتحميل, الشحن مجاناً.
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 afterward. In several unsolved problems on the safety of the earth-rock fill dam, the problem of hydraulic fracture in the soil core of the earth-rock fill dam is one that is widely paid attention by designers and researchers. Hydraulic fracturing is generally considered as a key cause which may induce the leakage of the dam during first filling. In this extensive book, a new numerical simulate method is suggested. The method is based on the conventional two-dimensional finite element technique, and the theoretical formulations to calculate energy release rate using virtual crack extension method. The influence factors on convergence of calculated J integral are investigated. The accuracy of the calculated J integral is verified by analysing the three typical problems in Fracture Mechanics, in which propagation of crack may follow mode I, mode II and mixed mode I-II respectively. Using the new numerical method, the factors affecting the occurrence of hydraulic fracturing in the earth-rock fill dam are investigated. The investigating results indicate that increasing any of the Young’s modulus, the Poisson’s ratio and the density of the core soil is helpful to reduce the likelihood of the occurrence of hydraulic fracturing. The likelihood of the occurrence of hydraulic fracturing increases with increasing the water level or the crack depth. The lower part of the dam core is the zone in which the phenomenon of hydraulic fracturing may be induced easily. As an example to analyse the ability of earth-rock fill dam to resist hydraulic fracturing, the Nuozhadu Dam located in Western China is analysed. Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problems Focuses on the problem of hydraulic fracturing in earth-rock fill dams from three aspects; conditions and mechanisms of hydraulic fracturing, criterion of hydraulic fracturing, and numerical method on hydraulic fracturing Examines advanced laboratory soil testing, application of numerical methods and field testing/monitoring, all needed for a better understanding of hydraulic fracturing in earth/rock fill dams Provides an essential reference in an area of scarce research in this field, and the need in high earth dam construction in developing countries is pressing Ideal for researchers in Hydraulic and Geotechnical Engineering Fields; Students on Masters or PhD courses; as well as Designers and Constructors in Hydraulic and Geotechnical Engineering Fields., Kindle Edition, الطبعة: 1, تنسيق: Kindle eBook, التسمية: Wiley, Wiley, مجموعة المنتجات: eBooks, ونشرت: 2014-04-11, تاريخ الإصدار: 2014-04-11, ستوديو: Wiley, رتبة المبيعات: 3693318.
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 afterward. In several unsolved problems on the safety of the earth-rock fill dam, the problem of hydraulic fracture in the soil core of the earth-rock fill dam is one that is widely paid attention by designers and researchers. Hydraulic fracturing is generally considered as a key cause which may induce the leakage of the dam during first filling. In this extensive book, a new numerical simulate method is suggested. The method is based on the conventional two-dimensional finite element technique, and the theoretical formulations to calculate energy release rate using virtual crack extension method. The influence factors on convergence of calculated J integral are investigated. The accuracy of the calculated J integral is verified by analysing the three typical problems in Fracture Mechanics, in which propagation of crack may follow mode I, mode II and mixed mode I-II respectively. Using the new numerical method, the factors affecting the occurrence of hydraulic fracturing in the earth-rock fill dam are investigated. The investigating results indicate that increasing any of the Young’s modulus, the Poisson’s ratio and the density of the core soil is helpful to reduce the likelihood of the occurrence of hydraulic fracturing. The likelihood of the occurrence of hydraulic fracturing increases with increasing the water level or the crack depth. The lower part of the dam core is the zone in which the phenomenon of hydraulic fracturing may be induced easily. As an example to analyse the ability of earth-rock fill dam to resist hydraulic fracturing, the Nuozhadu Dam located in Western China is analysed. Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problems Focuses on the problem of hydraulic fracturing in earth-rock fill dams from three aspects; conditions and mechanisms of hydraulic fracturing, criterion of hydraulic fracturing, and numerical method on hydraulic fracturing Examines advanced laboratory soil testing, application of numerical methods and field testing/monitoring, all needed for a better understanding of hydraulic fracturing in earth/rock fill dams Provides an essential reference in an area of scarce research in this field, and the need in high earth dam construction in developing countries is pressing Ideal for researchers in Hydraulic and Geotechnical Engineering Fields; Students on Masters or PhD courses; as well as Designers and Constructors in Hydraulic and Geotechnical Engineering Fields., Kindle Edition, الطبعة: 1, تنسيق: Kindle eBook, التسمية: Wiley, Wiley, مجموعة المنتجات: eBooks, ونشرت: 2014-04-11, تاريخ الإصدار: 2014-04-11, ستوديو: Wiley, رتبة المبيعات: 3693318.
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Hydraulic Fracturing in Earth-rock Fill Dams
EN NWISBN: 9781118725559 bzw. 1118725557, in Englisch, John Wiley & Sons, neu.
Hydraulic Fracturing in Earth-rock Fill Dams: 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 afterward. In several unsolved problems on the safety of the earth-rock fill dam, the problem of hydraulic fracture in the soil core of the earth-rock fill dam is one that is widely paid attention by designers and researchers. Hydraulic fracturing is generally considered as a key cause which may induce the leakage of the dam during first filling.
In this extensive book, a new numerical simulate method is suggested. The method is based on the conventional two-dimensional finite element technique, and the theoretical formulations to calculate energy release rate using virtual crack extension method. The influence factors on convergence of calculated J integral are investigated. The accuracy of the calculated J integral is verified by analysing the three typical problems in Fracture Mechanics, in which propagation of crack may follow mode I, mode II and mixed mode I-II respectively. Using the new numerical method, the factors affecting the occurrence of hydraulic fracturing in the earth-rock fill dam are investigated. The investigating results indicate that increasing any of the Young&rsquo s modulus, the Poisson&rsquo s ratio and the density of the core soil is helpful to reduce the likelihood of the occurrence of hydraulic fracturing. The likelihood of the occurrence of hydraulic fracturing increases with increasing the water level or the crack depth. The lower part of the dam core is the zone in which the phenomenon of hydraulic fracturing may be induced easily. As an example to analyse the ability of earth-rock fill dam to resist hydraulic fracturing, the Nuozhadu Dam located in Western China is analysed.  Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problemsFocuses on the problem of hydraulic fracturing in earth-rock fill dams from three aspects conditions and mechanisms of hydraulic fracturing, criterion of hydraulic fracturing, and numerical method on hydraulic fracturingExamines advanced laboratory soil testing, application of numerical methods and field testing/monitoring, all needed for a better understanding of hydraulic fracturing in earth/rock fill damsProvides an essential reference in an area of scarce research in this field, and the need in high earth dam construction in developing countries is pressing  Ideal for researchers in Hydraulic and Geotechnical Engineering Fields Students on Masters or PhD courses as well as Designers and Constructors in Hydraulic and Geotechnical Engineering Fields. Englisch, Ebook.
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Hydraulic Fracturing in Earth-rock Fill Dams
EN NW EB DLISBN: 9781118725566 bzw. 1118725565, in Englisch, Wiley, neu, E-Book, elektronischer Download.
Lieferung aus: Vereinigtes Königreich Großbritannien und Nordirland, Despatched same working day before 3pm.
Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problemsThere 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 afterward. In several unsolved problems on the safety of the earth-rock fill dam, the problem of hydraulic fracture in the soil core of the earth-rock fill dam is one that is widely paid attention by designers and researchers. Hydraulic fracturing is generally considered as a key cause which may induce the leakage of the dam during first filling. In this extensive book, a new numerical simulate method is suggested. The method is based on the conventional two-dimensional finite element technique, and the theoretical formulations to calculate energy release rate using virtual crack extension method. The influence factors on convergence of calculated J integral are investigated. The accuracy of the calculated J integral is verified by analysing the three typical problems in Fracture Mechanics, in which propagation of crack may follow mode I, mode II and mixed mode I-II respectively. Using the new numerical method, the factors affecting the occurrence of hydraulic fracturing in the earth-rock fill dam are investigated. The investigating results indicate that increasing any of the Young s modulus, the Poisson s ratio and the density of the core soil is helpful to reduce the likelihood of the occurrence of hydraulic fracturing. The likelihood of the occurrence of hydraulic fracturing increases with increasing the water level or the crack depth. The lower part of the dam core is the zone in which the phenomenon of hydraulic fracturing may be induced easily. As an example to analyse the ability of earth-rock fill dam to resist hydraulic fracturing, the Nuozhadu Dam located in Western China is analysed.Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problemsFocuses on the problem of hydraulic fracturing in earth-rock fill dams from three aspects; conditions and mechanisms of hydraulic fracturing, criterion of hydraulic fracturing, and numerical method on hydraulic fracturingExamines advanced laboratory soil testing, application of numerical methods and field testing/monitoring, all needed for a better understanding of hydraulic fracturing in earth/rock fill damsProvides an essential reference in an area of scarce research in this field, and the need in high earth dam construction in developing countries is pressingIdeal for researchers in Hydraulic and Geotechnical Engineering Fields; Students on Masters or PhD courses; as well as Designers and Constructors in Hydraulic and Geotechnical Engineering Fields.
Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problemsThere 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 afterward. In several unsolved problems on the safety of the earth-rock fill dam, the problem of hydraulic fracture in the soil core of the earth-rock fill dam is one that is widely paid attention by designers and researchers. Hydraulic fracturing is generally considered as a key cause which may induce the leakage of the dam during first filling. In this extensive book, a new numerical simulate method is suggested. The method is based on the conventional two-dimensional finite element technique, and the theoretical formulations to calculate energy release rate using virtual crack extension method. The influence factors on convergence of calculated J integral are investigated. The accuracy of the calculated J integral is verified by analysing the three typical problems in Fracture Mechanics, in which propagation of crack may follow mode I, mode II and mixed mode I-II respectively. Using the new numerical method, the factors affecting the occurrence of hydraulic fracturing in the earth-rock fill dam are investigated. The investigating results indicate that increasing any of the Young s modulus, the Poisson s ratio and the density of the core soil is helpful to reduce the likelihood of the occurrence of hydraulic fracturing. The likelihood of the occurrence of hydraulic fracturing increases with increasing the water level or the crack depth. The lower part of the dam core is the zone in which the phenomenon of hydraulic fracturing may be induced easily. As an example to analyse the ability of earth-rock fill dam to resist hydraulic fracturing, the Nuozhadu Dam located in Western China is analysed.Presents a systematic and comprehensive study of hydraulic fracturing, original in its concentration of core soil problemsFocuses on the problem of hydraulic fracturing in earth-rock fill dams from three aspects; conditions and mechanisms of hydraulic fracturing, criterion of hydraulic fracturing, and numerical method on hydraulic fracturingExamines advanced laboratory soil testing, application of numerical methods and field testing/monitoring, all needed for a better understanding of hydraulic fracturing in earth/rock fill damsProvides an essential reference in an area of scarce research in this field, and the need in high earth dam construction in developing countries is pressingIdeal for researchers in Hydraulic and Geotechnical Engineering Fields; Students on Masters or PhD courses; as well as Designers and Constructors in Hydraulic and Geotechnical Engineering Fields.
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Teach Yourself VISUALLY Photoshop Elements 11
EN NW EB DLISBN: 9781118550687 bzw. 1118550684, in Englisch, Wiley, neu, E-Book, elektronischer Download.
Lieferung aus: Vereinigtes Königreich Großbritannien und Nordirland, Despatched same working day before 3pm.
Full-color, step-by-step instruction for using the new Photoshop Elements 11Covering the most important features of Photoshop Elements 11, this book is packed with step-by-step instructions illustrated with full-color screen shots that clearly shows you how to do tasks, instead of resorting to lengthy explanations. Even better, the book includes an associated website with all the images in the book available for download, so you can get hands-on practice as you go. With this book, veteran author Mike Wooldridge gets up to speed on the latest and best that Photoshop Elements 10 has to offer.Walks you through the improved organizational and navigational tools that will help you categorize imagesDetails the enhanced tool for converting color images to B&W as well as the Flash-based web gallery templates to display imagesCovers importing photos from digital cameras and scanners, retouching and repairing damaged photos, enhancing digital images, perfecting group shots with Photomerge, and editing images for posting on the webHelps you utilize the sharpness interface to correct blurry images as well as the Curves tool to adjust contract and brightnessTeach Yourself VISUALLY Photoshop Elements 11 makes learning the new Photoshop Elements elementary!
Full-color, step-by-step instruction for using the new Photoshop Elements 11Covering the most important features of Photoshop Elements 11, this book is packed with step-by-step instructions illustrated with full-color screen shots that clearly shows you how to do tasks, instead of resorting to lengthy explanations. Even better, the book includes an associated website with all the images in the book available for download, so you can get hands-on practice as you go. With this book, veteran author Mike Wooldridge gets up to speed on the latest and best that Photoshop Elements 10 has to offer.Walks you through the improved organizational and navigational tools that will help you categorize imagesDetails the enhanced tool for converting color images to B&W as well as the Flash-based web gallery templates to display imagesCovers importing photos from digital cameras and scanners, retouching and repairing damaged photos, enhancing digital images, perfecting group shots with Photomerge, and editing images for posting on the webHelps you utilize the sharpness interface to correct blurry images as well as the Curves tool to adjust contract and brightnessTeach Yourself VISUALLY Photoshop Elements 11 makes learning the new Photoshop Elements elementary!
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