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Article: Digital representation of meso-geomaterial spatial distribution and associated numerical analysis of geomechanics: Methods, applications and developments

TitleDigital representation of meso-geomaterial spatial distribution and associated numerical analysis of geomechanics: Methods, applications and developments
Authors
KeywordsConcrete
Digital Images
Geo-Medium
Geomaterials
Geomechanics
Numerical Analysis
Rocks
Soils
Issue Date2007
PublisherGaodeng Jiaoyu Chubanshe. The Journal's web site is located at http://www.springer.com/engineering/journal/11709
Citation
Frontiers Of Architecture And Civil Engineering In China, 2007, v. 1 n. 1, p. 80-93 How to Cite?
AbstractThis paper presents the author's efforts in the past decade for the establishment of a practical approach of digital representation of the geomaterial distribution of different minerals, particulars, and components in the meso-scale range (0.1 to 500 mm). The primary goal of the approach is to provide a possible solution to solve the two intrinsic problems associated with the current main-stream methods for geomechanics. The problems are (1) the constitutive models and parameters of soils and rocks cannot be given accurately in geomechanical prediction; and (2) there are numerous constitutive models of soils and rocks in the literature. The problems are possibly caused by the homogenization or averaging method in analyzing laboratory test results for establishing the constitutive models and parameters. The averaging method employs an assumption that the test samples can be represented by a homogeneous medium. Such averaging method ignores the fact that the geomaterial samples are also consisted of a number of materials and components whose properties may have significant differences. In the proposed approach, digital image processing methods are used as measurement tools to construct a digital representation for the actual spatial distribution of the different materials and components in geomaterial samples. The digital data are further processed to automatically generate meshes or grids for numerical analysis. These meshes or grids can be easily incorporated into existing numerical software packages for further mechanical analysis and failure prediction of the geomaterials under external loading. The paper presents case studies to illustrate the proposed approach. Further discussions are also made on how to use the proposed approach to develop the geomechanics by taking into account the geomaterial behavior at micro-scale, meso-scale and macro-scale levels. A literature review of the related developments is given by examining the SCI papers in the database of Science Citation Index Expanded. The results of this review have shown that the proposed approach is one of the latest research and developments in geomechanics where actual spatial distribution and properties of materials and components at the meso-level are taken into account. © Higher Education Press 2007.
Persistent Identifierhttp://hdl.handle.net/10722/150413
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorYue, Zen_US
dc.date.accessioned2012-06-26T06:04:26Z-
dc.date.available2012-06-26T06:04:26Z-
dc.date.issued2007en_US
dc.identifier.citationFrontiers Of Architecture And Civil Engineering In China, 2007, v. 1 n. 1, p. 80-93en_US
dc.identifier.issn1673-7407en_US
dc.identifier.urihttp://hdl.handle.net/10722/150413-
dc.description.abstractThis paper presents the author's efforts in the past decade for the establishment of a practical approach of digital representation of the geomaterial distribution of different minerals, particulars, and components in the meso-scale range (0.1 to 500 mm). The primary goal of the approach is to provide a possible solution to solve the two intrinsic problems associated with the current main-stream methods for geomechanics. The problems are (1) the constitutive models and parameters of soils and rocks cannot be given accurately in geomechanical prediction; and (2) there are numerous constitutive models of soils and rocks in the literature. The problems are possibly caused by the homogenization or averaging method in analyzing laboratory test results for establishing the constitutive models and parameters. The averaging method employs an assumption that the test samples can be represented by a homogeneous medium. Such averaging method ignores the fact that the geomaterial samples are also consisted of a number of materials and components whose properties may have significant differences. In the proposed approach, digital image processing methods are used as measurement tools to construct a digital representation for the actual spatial distribution of the different materials and components in geomaterial samples. The digital data are further processed to automatically generate meshes or grids for numerical analysis. These meshes or grids can be easily incorporated into existing numerical software packages for further mechanical analysis and failure prediction of the geomaterials under external loading. The paper presents case studies to illustrate the proposed approach. Further discussions are also made on how to use the proposed approach to develop the geomechanics by taking into account the geomaterial behavior at micro-scale, meso-scale and macro-scale levels. A literature review of the related developments is given by examining the SCI papers in the database of Science Citation Index Expanded. The results of this review have shown that the proposed approach is one of the latest research and developments in geomechanics where actual spatial distribution and properties of materials and components at the meso-level are taken into account. © Higher Education Press 2007.en_US
dc.languageengen_US
dc.publisherGaodeng Jiaoyu Chubanshe. The Journal's web site is located at http://www.springer.com/engineering/journal/11709en_US
dc.relation.ispartofFrontiers of Architecture and Civil Engineering in Chinaen_US
dc.subjectConcreteen_US
dc.subjectDigital Imagesen_US
dc.subjectGeo-Mediumen_US
dc.subjectGeomaterialsen_US
dc.subjectGeomechanicsen_US
dc.subjectNumerical Analysisen_US
dc.subjectRocksen_US
dc.subjectSoilsen_US
dc.titleDigital representation of meso-geomaterial spatial distribution and associated numerical analysis of geomechanics: Methods, applications and developmentsen_US
dc.typeArticleen_US
dc.identifier.emailYue, Z:yueqzq@hkucc.hku.hken_US
dc.identifier.authorityYue, Z=rp00209en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1007/s11709-007-0008-0en_US
dc.identifier.scopuseid_2-s2.0-34250651601en_US
dc.identifier.hkuros149785-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-34250651601&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume1en_US
dc.identifier.issue1en_US
dc.identifier.spage80en_US
dc.identifier.epage93en_US
dc.publisher.placeChinaen_US
dc.identifier.scopusauthoridYue, Z=7102782735en_US

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