GeomInt–Mechanical Integrity of Host Rocks
GeomInt–Mechanical Integrity of Host Rocks

Author: Olaf Kolditz

Publisher: Springer Nature

Published: 2021-04-01

Total Pages: 287

ISBN-13: 3030619095

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This open access book summarizes the results of the collaborative project “GeomInt: Geomechanical integrity of host and barrier rocks - experiment, modeling and analysis of discontinuities” within the Program: Geo Research for Sustainability (GEO: N) of the Federal Ministry of Education and Research (BMBF). The use of geosystems as a source of resources, a storage space, for installing underground municipal or traffic infrastructure has become much more intensive and diverse in recent years. Increasing utilization of the geological environment requires careful analyses of the rock–fluid systems as well as assessments of the feasibility, efficiency and environmental impacts of the technologies under consideration. The establishment of safe, economic and ecological operation of underground geosystems requires a comprehensive understanding of the physical, (geo)chemical and microbiological processes on all relevant time and length scales. This understanding can only be deepened on the basis of intensive laboratory and in-situ experiments in conjunction with reliable studies on the modeling and simulation (numerical experiments) of the corresponding multi-physical/chemical processes. The present work provides a unique handbook for experimentalists, modelers, analysts and even decision makers concerning the characterization of various types of host rocks (salt, clay, crystalline formations) for various geotechnical applications.

GeomInt-Mechanical Integrity of Host Rocks
GeomInt-Mechanical Integrity of Host Rocks

Author: Olaf Kolditz

Publisher:

Published: 2021

Total Pages: 0

ISBN-13: 9783030619107

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This open access book summarizes the results of the collaborative project "GeomInt: Geomechanical integrity of host and barrier rocks - experiment, modeling and analysis of discontinuities" within the Program: Geo Research for Sustainability (GEO: N) of the Federal Ministry of Education and Research (BMBF). The use of geosystems as a source of resources, a storage space, for installing underground municipal or traffic infrastructure has become much more intensive and diverse in recent years. Increasing utilization of the geological environment requires careful analyses of the rock-fluid systems as well as assessments of the feasibility, efficiency and environmental impacts of the technologies under consideration. The establishment of safe, economic and ecological operation of underground geosystems requires a comprehensive understanding of the physical, (geo)chemical and microbiological processes on all relevant time and length scales. This understanding can only be deepened on the basis of intensive laboratory and in-situ experiments in conjunction with reliable studies on the modeling and simulation (numerical experiments) of the corresponding multi-physical/chemical processes. The present work provides a unique handbook for experimentalists, modelers, analysts and even decision makers concerning the characterization of various types of host rocks (salt, clay, crystalline formations) for various geotechnical applications.

GeomInt—Discontinuities in Geosystems From Lab to Field Scale
GeomInt—Discontinuities in Geosystems From Lab to Field Scale

Author: Olaf Kolditz

Publisher: Springer Nature

Published: 2023-05-02

Total Pages: 107

ISBN-13: 3031264932

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This is an open access book. In view of growing conflicts over strategic georesources, the use of the geological subsurface in the sense of a regional resource is becoming increasingly important. In this context, georeservoirs are playing an important role for the energy transition not only as a source of energy but also as a storage facility and deep geological disposal for energy waste. The success of the energy transition also depends to a large extent on the efficient and safe use of underground resources. This book complements the previous basic book (GeomInt—Integrity of Host Rocks) with a series of application examples in different rock formations, clay, salt, and crystalline. The methodology developed in GeomInt is used, among others, in the Mont Terri underground research laboratory (Opalinus Clay), in the large borehole test in Springen (salt rock) and in the “Reiche Zeche” teaching and research mine (crystalline rock). In addition, new methodological developments are also taken up in experiments and models and embedded in workflows for geotechnical system analyses. The present book summarizes the results of the collaborative project “GeomInt2: Geomechanical integrity of host and barrier rocks - experiment, modeling and analysis of discontinuities” within the program: Geo Research for Sustainability (GEO: N) of the Federal Ministry of Education and Research (BMBF).

OpenGeoSys Tutorial
OpenGeoSys Tutorial

Author: Agnes Sachse

Publisher: Springer

Published: 2017-03-07

Total Pages: 82

ISBN-13: 3319528092

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This book explores the application of the open-source software OpenGeoSys (OGS) for hydrological numerical simulations concerning conservative and reactive transport modeling. It provides general information on the hydrological and groundwater flow modeling of a real case study and step-by-step model set-up with OGS, while also highlighting related components such as the OGS Data Explorer. The material is based on unpublished manuals and the results of a collaborative project between China and Germany (SUSTAIN H2O). Though the book is primarily intended for graduate students and applied scientists who deal with hydrological modeling, it also offers a valuable source of information for professional geoscientists wishing to expand their knowledge of the numerical modeling of hydrological processes including nitrate reactive transport modeling. This book is the second in a series that showcases further applications of computational modeling in hydrological science.

Thermo-Hydro-Mechanical-Chemical Processes in Fractured Porous Media: Modelling and Benchmarking
Thermo-Hydro-Mechanical-Chemical Processes in Fractured Porous Media: Modelling and Benchmarking

Author: Olaf Kolditz

Publisher: Springer

Published: 2014-11-26

Total Pages: 314

ISBN-13: 3319118943

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The present book provides guidance to understanding complicated coupled processes based on the experimental data available and implementation of developed algorithms in numerical codes. Results of selected test cases in the fields of closed-form solutions (e.g., deformation processes), single processes (such as groundwater flow) as well as coupled processes are presented. It is part of the OpenGeoSys initiative - an open source project to share knowledge and experience in environmental analysis and scientific computation with the community.

Computational Geotechnics
Computational Geotechnics

Author: Thomas Nagel

Publisher: Springer

Published: 2017-04-29

Total Pages: 78

ISBN-13: 3319569627

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In this book, effective computational methods to facilitate those pivotal simulations using open-source software are introduced and discussed with a special focus on the coupled thermo-mechanical behavior of the rock salt. A cohesive coverage of applying geotechnical modeling to the subsurface storage of hydrogen produced from renewable energy sources is accompanied by specific, reproducible example simulations to provide the reader with direct access to this fascinating and important field. Energy carriers such as natural gas, hydrogen, oil, and even compressed air can be stored in subsurface geological formations such as depleted oil or gas reservoirs, aquifers, and caverns in salt rock. Many challenges have arisen in the design, safety and environmental impact assessment of such systems, not the least of which is that large-scale experimentation is not a feasible option. Therefore, simulation techniques are central to the design and risk assessment of these and similar geotechnical facilities.

Enzymatic Plastic Degradation
Enzymatic Plastic Degradation

Author:

Publisher: Academic Press

Published: 2021-02-10

Total Pages: 502

ISBN-13: 0128220139

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Enzymatic Plastic Degradation, Volume 648 in the Methods in Enzymology series, continues the legacy of this premier serial with chapters authored by leaders in the field. Chapters in this latest release include Evaluating plastic pollution and environmental degradation, Assessment methods for microplastic pollution in the oceans and fresh water, Exploring microbial consortia from various environments for plastic degradation, Characterization of filamentous fungi for attack on synthetic polymers via biological Fenton chemistry, Synthesis of radioactive-labeled nanoplastics for assaying the environmental (microbial) PS degradation, Exploring metagenome for plastic degrading enzymes, Cutinases from thermophilic bacteria (actinomycetes): from identification to functional and structural characterization, and much more. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Methods in Enzymology series - Covers the latest research and technologies in enzymatic plastic degradation

Models of Thermochemical Heat Storage
Models of Thermochemical Heat Storage

Author: Christoph Lehmann

Publisher: Springer

Published: 2018-01-23

Total Pages: 102

ISBN-13: 3319715232

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Thermochemical gas-solid reactions, as well as adsorption processes, are currently of significant interest for the design of heat storage systems. This book provides detailed models of these reactions and processes that account for heat and mass transport, chemical and physical reactions, and possible local thermal non-equilibrium. The underlying scientific theory behind the models is explained, laboratory tests are simulated, and methods for high-performance computing are discussed. Applications ranging from seasonal domestic heat storage to diurnally operating systems in concentrating solar power facilities are considered in these models, which are not available through any other sources. Finally, an outlook on future developments highlights emerging technologies.

The Variational Approach to Fracture
The Variational Approach to Fracture

Author: Blaise Bourdin

Publisher: Springer Science & Business Media

Published: 2008-04-19

Total Pages: 173

ISBN-13: 1402063954

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Presenting original results from both theoretical and numerical viewpoints, this text offers a detailed discussion of the variational approach to brittle fracture. This approach views crack growth as the result of a competition between bulk and surface energy, treating crack evolution from its initiation all the way to the failure of a sample. The authors model crack initiation, crack path, and crack extension for arbitrary geometries and loads.

The Mechanical Behavior of Salt – Understanding of THMC Processes in Salt
The Mechanical Behavior of Salt – Understanding of THMC Processes in Salt

Author: Manfred Wallner

Publisher: CRC Press

Published: 2017-12-14

Total Pages: 453

ISBN-13: 1351377167

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A unique opportunity to review the latest progress in an expanding area of interest: the Mechanical Behaviour of Salt. These Proceedings include over fifty papers and summaries describing the latest findings in ongoing studies from a number of research groups. For the 2007 conference, there was a particular focus on the understanding of thermal, mechanical, hydraulic and chemical coupled processes (THMC). Such processes are of specific interest when considering advanced problems in waste disposal, storage and mining. The book includes a number of themes: - laboratory and in-situ investigations modelling, e.g. derivation of constitutive equations - numerical computations and prediction of long-term behaviour - THMC processes in mining projects, storage and permanent disposal - case studies - geology - mining and storage applications and abandonment The International Conferences on the Mechanical Behaviour of Salt have a long tradition, being initiated in 1981 at The Pennsylvania State University, USA. The present conference, the sixth of the series, took place in Hannover, Germany, in May 2007. The conference brought together mining engineers, researchers, and university professors interested in the mechanical behaviour of salt, mostly from Europe and beyond.