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  • 1
    Schlagwort(e): Geotechnical engineering. ; Engineering mathematics. ; Engineering Data processing. ; Energy policy. ; Energy and state. ; Geotechnical Engineering and Applied Earth Sciences. ; Mathematical and Computational Engineering Applications. ; Energy Policy, Economics and Management.
    Beschreibung / Inhaltsverzeichnis: Chapter 1. Introduction (Baotang Shen, Ove Stephansson, Mikael Rinne) -- Part I: Theoretical background -- Chapter 2. Introduction to the Theories of Rock Fracturing (Mikael Rinne, Ove Stephansson, Baotang Shen, Heinz Konietzky) -- Chapter 3. Laboratory studies of 2D and 3D rock fracture propagation (Baotang Shen, Xizhen Sun, Baoliang Zhang) -- Chapter 4. Laboratory investigation on hydraulic fracturing of granite core specimens (Li Zhuang, Sunggyu Jung, Melvin Diaz, Kwang Yeom Kim) -- Chapter 5. Impact of Injection style on the evolution of fluid-induced seismicity in hard rock at Ӓspö Hard Rock Laboratory (Arno Zang, Ove Stephansson and Günter Zimmermann) -- Part II: Numerical methods -- Chapter 6. Modelling coupled rock fracture propagation with FRACOD (Baotang Shen, Ove Stephansson, Mikael Rinne) -- Chapter 7. FRACOD3D: A Three-dimensional Crack Growth Simulator Code (Jingyu Shi, Baotang Shen) -- Chapter 8. Coupled fracture modelling with RFPA (Gen Li, Chun’an Tang, Zhengzhao Liang, Lianchong Li) -- Chapter 9. TOUGH-based hydraulic fracturing models (Jonny Rutqvist) -- Chapter 10. Coupled fracture modelling with distinct element methods (Jeoung Seok Yoon, Jim Hazzard) -- Part III: Case studies -- Chapter 11. Modelling of Tunnel Failure and Fault Re-activation in CO2 Geosequestration (Baotang Shen, Nick Barton, Jingyu Shi) -- Chapter 12. FRACOD Applications to Underground LNG storage (Eui-Seob Park, Yong-Bok Jung, Taek Kon Kim, Baotang Shen) -- Chapter 13. Applications for Deep Geothermal Engineering (Linmao Xie, Bing Bai, Baotang Shen, Günter Zimmermann, Ki-Bok Min) -- Chapter 14. FRACOD applications to nuclear waste disposal (Mikael Rinne) -- Chapter 15. Mine Stability and water inrush in coal mine (Yunliang Tan, Shichuan Zhang, Baotang Shen, Weiyao Guo, Xuesheng Liu) -- Chapter 16. Modelling Hydraulic Fracturing in Coals (Weiguo Liang, Haojie Lian, Jianfeng Yang) -- Chapter 17. Applications of Rock Failure Process Analysis (RFPA) to Rock Engineering (Chun’an Tang, Shibin Tang) -- Chapter 18. Hydro-mechanical coupled PFC2D modelling of fluid injection induced seismicity and fault reactivation (Jeoung Seok Yoon, Arno Zang, Hannes Hofmann, Ove Stephansson) -- Chapter 19. Lifetime prediction of rocks (Konietzky, H. Li, X. Chen, W.) -- Chapter 20. Numerical Simulation of Hydraulically Driven Fractures (Branko Damjanac, Christine Detournay and Peter Cundall).
    Kurzfassung: This book is the second edition of the well-known textbook Modelling Rock Fracturing Processes. The new and extended edition provides the theoretical background of rock fracture mechanics used for modelling of 2-D and 3-D geomechanics problems and processes. Fundamentals of rock fracture mechanics integrated with experimental studies of rock fracturing processes are highlighted. The computer programs FRACOD 2D and 3D are used to analyse fracture initiation and propagation for the three fracture modes: Mode I, II and III. Coupled fracture modelling with other continuous and distinct element codes including FLAC, PFC, RFPA, TOUGH are also described. A series of applications of fracture modelling with importance for modern society is presented and discussed by distinguished rock fracture modelling experts.
    Materialart: Online-Ressource
    Seiten: XIX, 573 p. 379 illus., 257 illus. in color. , online resource.
    Ausgabe: 2nd ed. 2020.
    ISBN: 9783030355258
    DDC: 624.151
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Monographie ausleihbar
    Monographie ausleihbar
    Dordrecht [u.a.] : Springer
    Signatur: M 13.0267
    Beschreibung / Inhaltsverzeichnis: This text book provides the theoretical background of rock fracture mechanics and displacement discontinuity methods used for the modelling of geomechanical problems. The computer program FRACOD is used to analyse the fracture problems, assessing fracture initiation and propagation in tension (Mode I), shear (Mode II) and mixed mode I and II of solid intact or jointed geomaterials. The book also presents the fundamentals of thermo-mechanical coupling and hydro-mechanical coupling. Formulations of multiple regional mechanical, thermal and hydraulic functions, which allow analyses of fracture mechanics problems for structures made of brittle, rock-like materials, are provided. In addition, instructive examples of code verification and applications are presented. Additional material: The 2-D version of the FRACOD program, a manual on the program and a wealth of verification examples of classical problems in physics, mechanics and hydromechanics are available at http://extras.springer.com. A large number of applications related to civil, mining, petroleum and environmental engineering are also included.- The first textbook available on modelling of rock fracture propagation - Introduces readers to the fundamentals of rock fracturing - Uses a modern style of teaching with theory, mathematical modelling and applications in one package - The basic version of the FRACOD software, manual, verification examples and applications are available as additional material - The FRACOD program and manual enable the readers to solve fracture propagation problems on their own.
    Materialart: Monographie ausleihbar
    Seiten: XV, 173 S. : Ill., graph. Darst.
    ISBN: 9789400769038
    Klassifikation:
    Geodynamik
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Monographie ausleihbar
    Monographie ausleihbar
    Berlin : Verlag Die Wirtschaft
    Signatur: O 5864
    Materialart: Monographie ausleihbar
    Seiten: 159 S. : graph. Darst.
    Ausgabe: 2., durchges. Aufl.
    Sprache: Deutsch
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Signatur: G 8460
    Materialart: Monographie ausleihbar
    Seiten: 323 S. : graph. Darst.
    Ausgabe: 3. Aufl.
    ISBN: 3510650409
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Signatur: 8757 ; 5463
    Materialart: Monographie ausleihbar
    Seiten: XIII, 366 S. : zahlr. Ill., graph. Darst.
    Ausgabe: 2., vollst. umgearb. Aufl.
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Signatur: G 8544 / Regal 14
    Materialart: Monographie ausleihbar
    Seiten: VII, 365 S. : Ill., graph. Darst.
    Ausgabe: 6./7. Aufl.
    Standort: Magazin - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Signatur: G 5462 / Regal 13
    Materialart: Monographie ausleihbar
    Seiten: VII, 428 S. : Ill., graph. Darst.
    Ausgabe: 10. und 11. Aufl.
    Standort: Magazin - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Publikationsdatum: 2019
    Beschreibung: Abstract Globally 40−70 Pg of carbon (C) are stored in coarse woody debris on the forest floor. Climate change may reduce the function of this stock as a C sink in the future due to increasing temperature. However, current knowledge on the drivers of wood decomposition is inadequate for detailed predictions. To define the factors that control wood respiration rate of Norway spruce and to produce a model that adequately describes the decomposition process of this species as a function of time, we used an unprecedentedly diverse analytical approach, which included measurements of respiration, fungal community sequencing, N2 fixation rate, nifH copy number, 14C‐dating as well as N%, δ13C and C% values of wood. Our results suggest that climate change will accelerate C flux from deadwood in boreal conditions, due to the observed strong temperature dependency of deadwood respiration. At the research site, the annual C flux from deadwood would increase by 27% from the current 117g C/kg wood with the projected climate warming (RCP4.5). The second most important control on respiration rate was the stage of wood decomposition; at early stages of decomposition low nitrogen content and low wood moisture limited fungal activity while reduced wood resource quality decreased the respiration rate at the final stages of decomposition. Wood decomposition process was best described by a Sigmoidal model, where after 116 years of wood decomposition mass loss of 95% was reached. Our results on deadwood decomposition are important for C budget calculations in ecosystem and climate change models. We observed for the first time that the temperature dependency of N2 fixation, which has a major role at providing N for wood‐inhabiting fungi, was not constant but varied between wood density classes due to source supply and wood quality. This has significant consequences on projecting N2 fixation rates for deadwood in changing climate. This article is protected by copyright. All rights reserved.
    Print ISSN: 1354-1013
    Digitale ISSN: 1365-2486
    Thema: Biologie , Energietechnik , Geographie
    Publiziert von Wiley
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
  • 10
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Korrensalo, Aino; Alekseychik, Pavel; Hájek, Tomas; Rinne, Janne; Vesala, Timo; Mehtätalo, Lauri; Mammarella, Ivan; Tuittila, Eeva-Stiina (2017): Species-specific temporal variation in photosynthesis as a moderator of peatland carbon sequestration. Biogeosciences, 14(2), 257-269, https://doi.org/10.5194/bg-14-257-2017
    Publikationsdatum: 2023-01-13
    Beschreibung: In boreal bogs plant species are low in number, but they differ greatly in their growth forms and photosynthetic properties. We assessed how ecosystem carbon (C) sink dynamics were affected by seasonal variations in photosynthetic rate and leaf area of different species. Photosynthetic properties (light-response parameters), leaf area development and areal cover (abundance) of the species were used to quantify species-specific net and gross photosynthesis rates (PN and PG, respectively), which were summed to express ecosystem-level PN and PG. The ecosystem-level PG was compared with a gross primary production (GPP) estimate derived from eddy covariance measurements (EC). Species areal cover rather than differences in photosynthetic properties determined the species with the highest PG of both vascular plants and Sphagna. Species-specific contributions to the ecosystem PG varied over the growing season, which in turn determined the seasonal variation in ecosystem PG. The upscaled growing-season PG estimate, 230 g C/m**2, agreed well with the GPP estimated by the EC, 243 g C/m**2. Sphagna were superior to vascular plants in ecosystem-level PG throughout the growing season but had a lower PN. PN results indicated that areal cover of the species together with their differences in photosynthetic parameters shape the ecosystem-level C balance. Species with low areal cover but high photosynthetic efficiency appear to be potentially important for the ecosystem C sink. Results imply that functional diversity may increase the stability of C sink of boreal bogs.
    Schlagwort(e): DATE/TIME; Day of the year; Finland; Gross primary production of carbon dioxide; Leaf area index; South_Finland; Water table level
    Materialart: Dataset
    Format: text/tab-separated-values, 2253 data points
    Standort Signatur Erwartet Verfügbarkeit
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