Composite Element Method For Modelling Transient Groundwater Flow In Fractured Media And Its Application To Slope Stability Problem

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Composite Element Method for Modelling Transient Groundwater Flow in Fractured Media and Its Application to Slope Stability Problem

Author : Xiaoping Hou
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Composite Element Method for Modelling Transient Groundwater Flow in Fractured Media and Its Application to Slope Stability Problem by : Xiaoping Hou

Download or read book Composite Element Method for Modelling Transient Groundwater Flow in Fractured Media and Its Application to Slope Stability Problem written by Xiaoping Hou and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a comprehensive numerical method for analyzing transient groundwater flow in porous and fractured media and its application to the analysis of the stability of soil and rock slopes subjected to transient groundwater flow induced by reservoir drawdown conditions. Compared to that of porous media, the analysis of flow in fractured media is relatively complex, due to the presence of a large number of fractures and strong variations in geometric and hydraulic properties.The thesis is organized in six chapters. Chapter 1 presents the issues to be addressed and the thesis objectives. Chapter 2 discusses basic theories related to the numerical analysis of groundwater flow in fractured media and its effects on slope stability.Chapter 3 develops the numerical model of transient, saturated flow in fractured media with a free surface using the composite element method (CEM). Chapter 4 presents the numerical model of transient, variably-saturated flow in fractured media using the CEM.Chapter 5 includes an investigation of the stability of homogeneous soil slopes under drawdown conditions, depending on the drawdown rate, hydraulic and strength parameters of soils, and slope geometry.The last chapter presents a parametric study on the influence of fracture characteristics on transient flow and stability of layered rock slope subjected to drawdown conditions.

Finite Element Techniques in Groundwater Flow Studies

Author : I. Kazda
Publisher : Elsevier
ISBN 13 : 0444598324
Total Pages : 328 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis Finite Element Techniques in Groundwater Flow Studies by : I. Kazda

Download or read book Finite Element Techniques in Groundwater Flow Studies written by I. Kazda and published by Elsevier. This book was released on 2012-12-02 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: The finite element method (FEM) is one of those modern numerical methods whose rise and development was incited by the rapid development of computers. This method has found applications in all the technical disciplines as well as in the natural sciences.One of the most effective applications of the finite element method is its use for the solution of groundwater flow problems encountered in the design and maintenance of hydraulic structures and tailing dams, in soil mechanics, hydrology, hydrogeology and engineering geology.The stimuli to write this book came from the results obtained in the solution of practical problems connected both with the construction and maintenance of fill-type dams and tailing dams and the utilization of groundwater in Czechoslovakia, and on the other hand from the experience gained in teaching hydraulic structures theory at the Faculty of Civil Engineering of the Technical University of Prague. All the experience so far obtained shows markedly the advantages of the finite element method and the great possibilities of its further development as well as its considerable demands on the algorithmization, programming and use of computer possibilities. The reader will find an explanation of the fundamentals of the finite element method directed mainly toward isoparametric elements having an exceptional adaptability and numerical reliability. The finite element method application to groundwater flow concerns mainly two-dimensional problems, which occur most frequently in practice. Considerable attention is given to non-linear and non-stationary problems, which are most important in application.A computer program (based on the eight-noded isoparametric elements) is included and fully documented.The book will be useful to civil engineers, hydrogeologists and engineering geologists who need the finite element method as a solution tool for the complex problems encountered in engineering practice.

Advanced Applications of the Boundary Element Method to Groundwater Flow in Fractured Rock and Free Surface Hydrodynamics

Author : Daniel Ernesto Medina
Publisher :
ISBN 13 :
Total Pages : 430 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Advanced Applications of the Boundary Element Method to Groundwater Flow in Fractured Rock and Free Surface Hydrodynamics by : Daniel Ernesto Medina

Download or read book Advanced Applications of the Boundary Element Method to Groundwater Flow in Fractured Rock and Free Surface Hydrodynamics written by Daniel Ernesto Medina and published by . This book was released on 1989 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1370 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Applied mechanics reviews

Author :
Publisher :
ISBN 13 :
Total Pages : 400 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Applied mechanics reviews by :

Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Rock Fractures and Fluid Flow

Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309049962
Total Pages : 568 pages
Book Rating : 4.3/5 (9 download)

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Book Synopsis Rock Fractures and Fluid Flow by : National Research Council

Download or read book Rock Fractures and Fluid Flow written by National Research Council and published by National Academies Press. This book was released on 1996-08-27 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific understanding of fluid flow in rock fracturesâ€"a process underlying contemporary earth science problems from the search for petroleum to the controversy over nuclear waste storageâ€"has grown significantly in the past 20 years. This volume presents a comprehensive report on the state of the field, with an interdisciplinary viewpoint, case studies of fracture sites, illustrations, conclusions, and research recommendations. The book addresses these questions: How can fractures that are significant hydraulic conductors be identified, located, and characterized? How do flow and transport occur in fracture systems? How can changes in fracture systems be predicted and controlled? Among other topics, the committee provides a geomechanical understanding of fracture formation, reviews methods for detecting subsurface fractures, and looks at the use of hydraulic and tracer tests to investigate fluid flow. The volume examines the state of conceptual and mathematical modeling, and it provides a useful framework for understanding the complexity of fracture changes that occur during fluid pumping and other engineering practices. With a practical and multidisciplinary outlook, this volume will be welcomed by geologists, petroleum geologists, geoengineers, geophysicists, hydrologists, researchers, educators and students in these fields, and public officials involved in geological projects.

Flow and Contaminant Transport in Fractured Rock

Author : Jacob Bear
Publisher : Academic Press
ISBN 13 :
Total Pages : 586 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Flow and Contaminant Transport in Fractured Rock by : Jacob Bear

Download or read book Flow and Contaminant Transport in Fractured Rock written by Jacob Bear and published by Academic Press. This book was released on 1993-04-20 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling flow and contaminant transport in fractured rocks / J. Bear -- Solute transport in fractured rock--applications to radionuclide waste repositories / I. Neretnieks -- Solute transport through fracture networks / L. Smith, F.W. Schwartz -- Stochastic models of fracture systems and their use in flow and transport modeling / J.-P. Chilès, G. de Marsily -- Tracer transport in fracture systems / C.-F. Tsang --Multiphase flow in fractured petroleum reservoirs / H. Kazemi, J.R. Gilman -- Unsaturated flow in fractured porous media / J.S.Y. Wang, T.N. Narasimhan -- Simulation of flow and transport in fractured porous media / G.F. Pinder, P.S. Huyakorn, E.A. Sudicky -- A summary of field test methods in fractured rocks / P. Jouanna -- Index.

FEFLOW

Author : Hans-Jörg G. Diersch
Publisher : Springer Science & Business Media
ISBN 13 : 364238739X
Total Pages : 1018 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis FEFLOW by : Hans-Jörg G. Diersch

Download or read book FEFLOW written by Hans-Jörg G. Diersch and published by Springer Science & Business Media. This book was released on 2013-11-22 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt: FEFLOW is an acronym of Finite Element subsurface FLOW simulation system and solves the governing flow, mass and heat transport equations in porous and fractured media by a multidimensional finite element method for complex geometric and parametric situations including variable fluid density, variable saturation, free surface(s), multispecies reaction kinetics, non-isothermal flow and multidiffusive effects. FEFLOW comprises theoretical work, modeling experiences and simulation practice from a period of about 40 years. In this light, the main objective of the present book is to share this achieved level of modeling with all required details of the physical and numerical background with the reader. The book is intended to put advanced theoretical and numerical methods into the hands of modeling practitioners and scientists. It starts with a more general theory for all relevant flow and transport phenomena on the basis of the continuum approach, systematically develops the basic framework for important classes of problems (e.g., multiphase/multispecies non-isothermal flow and transport phenomena, discrete features, aquifer-averaged equations, geothermal processes), introduces finite-element techniques for solving the basic balance equations, in detail discusses advanced numerical algorithms for the resulting nonlinear and linear problems and completes with a number of benchmarks, applications and exercises to illustrate the different types of problems and ways to tackle them successfully (e.g., flow and seepage problems, unsaturated-saturated flow, advective-diffusion transport, saltwater intrusion, geothermal and thermohaline flow).

KWIC Index of Rock Mechanics Literature

Author : J P Jenkins
Publisher : Elsevier
ISBN 13 : 1483188256
Total Pages : 744 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis KWIC Index of Rock Mechanics Literature by : J P Jenkins

Download or read book KWIC Index of Rock Mechanics Literature written by J P Jenkins and published by Elsevier. This book was released on 2016-06-03 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: KWIC Index of Rock Mechanics Literature, Part 2: 1969-1976 is an index of subjects in rock mechanics. The KWIC (keyword-in-context) index is produced by cyclic permutation of significant words in the title of the publication. The text covers materials in rock mechanics and geomechanics published around the 70s. The book will be of great use to students, researchers, and practitioners of geological sciences.

Double-porosity Modelling of Groundwater Flow Through Fractured Rock Masses [microform]

Author : Doina Maria Priscu
Publisher : National Library of Canada = Bibliothèque nationale du Canada
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (428 download)

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Book Synopsis Double-porosity Modelling of Groundwater Flow Through Fractured Rock Masses [microform] by : Doina Maria Priscu

Download or read book Double-porosity Modelling of Groundwater Flow Through Fractured Rock Masses [microform] written by Doina Maria Priscu and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: "One of the key factors in ensuring safe slopes in open pit mines is the control of the groundwater flow within the slope. When analyzing the flow regime and its characteristics, traditional numerical methods designed for soil-like materials may not always apply. In the present thesis, the two-dimensional finite element code FlowD was developed to analyze steady-state seepage through fractured rock masses, under saturated conditions. The program provides the user with two modelling options: porous (soil) materials, or fractured rock masses. The double-porosity model was incorporated in the code, in order to better model flow through anisotropic, heterogeneous fractured rock masses, where Dirichlet and Neumann boundary conditions can apply. FlowD program calculates total pressure head, flow gradients and velocities within the specified domain. Drains, drainage galleries and wells, as well as aquifer recharge can be simulated. A real large-scale case study, with complex geological features has been simulated in order to demonstrate the application of the double porosity model. Three different scenarios have been modeled for the same slope, which are natural groundwater regime, vertical well simulation, and drainage galleries simulation. The results show good agreement with the predictions of both the consultant and the mine's engineering division." --

Groundwater Modeling by the Finite Element Method

Author : J. D. Istok
Publisher : American Geophysical Union
ISBN 13 :
Total Pages : 520 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Groundwater Modeling by the Finite Element Method by : J. D. Istok

Download or read book Groundwater Modeling by the Finite Element Method written by J. D. Istok and published by American Geophysical Union. This book was released on 1989 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Water Resources Monograph Series, Volume 13. The finite element method is now widely used to solve a variety of important problems in the field of groundwater hydrology. Thus a clear understanding of the method is essential to scientists and engineers working in this field. The goal of this book is to provide the reader with the basic skills needed to use the finite element method to solve "real-world" problems. Examples are used throughout the text to illustrate each step in the solution process.

Modeling Groundwater Flow and Contaminant Transport in Fractured Aquifers

Author : Jason M. Bordas
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (671 download)

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Book Synopsis Modeling Groundwater Flow and Contaminant Transport in Fractured Aquifers by : Jason M. Bordas

Download or read book Modeling Groundwater Flow and Contaminant Transport in Fractured Aquifers written by Jason M. Bordas and published by . This book was released on 2005 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Finite Elements in Water Resources

Author : J. P. Laible
Publisher : Springer
ISBN 13 :
Total Pages : 848 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Finite Elements in Water Resources by : J. P. Laible

Download or read book Finite Elements in Water Resources written by J. P. Laible and published by Springer. This book was released on 1984 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the edited proceedings of the Fifth International Conference on Finite Elements in Water Resources, held at the University of Vermont, USA in June 1984. This Conference cont inues the successful series started at Princeton University in 1976, followed by the Conference in Imperial College, London, UK in 1978, the third Conference at the University of Mississippi, USA in 1980 and the fourth at the University of Hannover, Germany in 1982. The objective of this Conference is to provide engineers and scientists interested in water resources with the state-of-t- art on finite element modelling. The Proceedings review the basic theory and applications of the technique in groundwater and seepage, transport phenomena, viscous flow, river, lake and ocean modelling. The fundamentals of the numerical techniques employed in finite elements are also discussed. Many applications illus trate the versatility and generality of the Finite Element Method for the simulation of a wide range of problems in water resources. More recent schemes, in particular, boundary elements, are also presented, together with a series of advanced numerical techniques. The Conference has become an internationally accepted forum for the presentation of new developments of finite elements in water resources techniques. Because of this, a large number of abstracts were submitted to the Organizing Committee and it is our only reg ret that it was impossible to accept all these contributions. The overwhelming response to our Call for Papers has ensured the high quality of these proceedings.

Characterization, Modeling, Monitoring, and Remediation of Fractured Rock

Author : National Academies of Sciences, Engineering, and Medicine
Publisher : National Academies Press
ISBN 13 : 0309373727
Total Pages : 177 pages
Book Rating : 4.3/5 (93 download)

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Book Synopsis Characterization, Modeling, Monitoring, and Remediation of Fractured Rock by : National Academies of Sciences, Engineering, and Medicine

Download or read book Characterization, Modeling, Monitoring, and Remediation of Fractured Rock written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2021-01-29 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fractured rock is the host or foundation for innumerable engineered structures related to energy, water, waste, and transportation. Characterizing, modeling, and monitoring fractured rock sites is critical to the functioning of those infrastructure, as well as to optimizing resource recovery and contaminant management. Characterization, Modeling, Monitoring, and Remediation of Fractured Rock examines the state of practice and state of art in the characterization of fractured rock and the chemical and biological processes related to subsurface contaminant fate and transport. This report examines new developments, knowledge, and approaches to engineering at fractured rock sites since the publication of the 1996 National Research Council report Rock Fractures and Fluid Flow: Contemporary Understanding and Fluid Flow. Fundamental understanding of the physical nature of fractured rock has changed little since 1996, but many new characterization tools have been developed, and there is now greater appreciation for the importance of chemical and biological processes that can occur in the fractured rock environment. The findings of Characterization, Modeling, Monitoring, and Remediation of Fractured Rock can be applied to all types of engineered infrastructure, but especially to engineered repositories for buried or stored waste and to fractured rock sites that have been contaminated as a result of past disposal or other practices. The recommendations of this report are intended to help the practitioner, researcher, and decision maker take a more interdisciplinary approach to engineering in the fractured rock environment. This report describes how existing tools-some only recently developed-can be used to increase the accuracy and reliability of engineering design and management given the interacting forces of nature. With an interdisciplinary approach, it is possible to conceptualize and model the fractured rock environment with acceptable levels of uncertainty and reliability, and to design systems that maximize remediation and long-term performance. Better scientific understanding could inform regulations, policies, and implementation guidelines related to infrastructure development and operations. The recommendations for research and applications to enhance practice of this book make it a valuable resource for students and practitioners in this field.

Finite Element Techniques in Groundwater Flow Studies

Author : Ivo Kazda
Publisher :
ISBN 13 : 9780444416629
Total Pages : 313 pages
Book Rating : 4.4/5 (166 download)

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Book Synopsis Finite Element Techniques in Groundwater Flow Studies by : Ivo Kazda

Download or read book Finite Element Techniques in Groundwater Flow Studies written by Ivo Kazda and published by . This book was released on 1990 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt:

A Semi-analytic Solution for Flow in Finite-conductivity Vertical Fractures Using Fractal Theory

Author : Manuel Cossio Santizo
Publisher :
ISBN 13 :
Total Pages : 105 pages
Book Rating : 4.:/5 (818 download)

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Book Synopsis A Semi-analytic Solution for Flow in Finite-conductivity Vertical Fractures Using Fractal Theory by : Manuel Cossio Santizo

Download or read book A Semi-analytic Solution for Flow in Finite-conductivity Vertical Fractures Using Fractal Theory written by Manuel Cossio Santizo and published by . This book was released on 2012 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: The exploitation of unconventional reservoirs goes hand in hand with the practice of hydraulic fracturing and, with an ever increasing demand in energy, this practice is set to experience significant growth in the coming years. Sophisticated analytic models are needed to accurately describe fluid flow in a hydraulic fracture and the problem has been approached from different directions in the past 3 decades - starting with the use of line-source functions for the infinite conductivity case, followed by the application of Laplace Transforms and the Boundary-Element Method for the finite-conductivity case. This topic remains an active area of research and, for the more complicated physical scenarios such as multiple transverse fractures in ultra-tight reservoirs, answers are presently being sought. Fractal theory has been successfully applied to pressure transient testing, albeit with an emphasis on the effects of natural fractures in pressure-rate behavior. In this work, we begin by performing a rigorous analytical and numerical study of the Fractal Diffusivity Equation and we show that it is more fundamental than the classic linear and radial diffusivity equations. Subsequently, we combine the Fractal Diffusivity Equation with the Trilinear Flow Model, culminating in a new semi-analytic solution for flow in a finite-conductivity vertical fracture which we name the "Fractal-Fracture Solution". This new solution is instantaneous and has an overall accuracy of 99.7%, thus making it comparable to the Trilinear Pseudoradial Solution for practical purposes. It may be used for pressure transient testing and reservoir characterization of hydrocarbon reservoirs being produced by a vertically fractured well. Additionally, this is the first time that fractal theory is used in fluid flow in porous media to address a problem not related to reservoir heterogeneity. Ultimately, this work is a demonstration of the untapped potential of fractal theory; our approach is very flexible and we believe that the same methodology may be extended to develop new reservoir flow solutions for pressing problems that the industry currently faces.

A Three-dimensional Finite Element Model to Simulate Groundwater Flow of Two Immiscible Fluids Through Anisotropic and Heterogeneous Media

Download A Three-dimensional Finite Element Model to Simulate Groundwater Flow of Two Immiscible Fluids Through Anisotropic and Heterogeneous Media PDF Online Free

Author : Panfilo Andrea Mascianglioli
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (325 download)

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Book Synopsis A Three-dimensional Finite Element Model to Simulate Groundwater Flow of Two Immiscible Fluids Through Anisotropic and Heterogeneous Media by : Panfilo Andrea Mascianglioli

Download or read book A Three-dimensional Finite Element Model to Simulate Groundwater Flow of Two Immiscible Fluids Through Anisotropic and Heterogeneous Media written by Panfilo Andrea Mascianglioli and published by . This book was released on 1993 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: