Article: Development of random mesostructure generating system of soil-rock mixture and study of its mesostructural mechanics based on numerical test
| Title | Development of random mesostructure generating system of soil-rock mixture and study of its mesostructural mechanics based on numerical test |
|---|---|
| Authors | Xu, W3 Hu, R2 Yue, ZQ1 |
| Keywords | Biaxial Test Mesostructural Mechanics (M-Sm) Numerical Test Random Mesostructure Generation System Of Soil-Rock Mixture (R-Srm2d) Random Simulation Rock And Soil Mechanics Soil-Rock Mixture(S-Rm) |
| Issue Date | 2009 |
| Citation | Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2009, v. 28 n. 8, p. 1652-1665 [How to Cite?] |
| Abstract | The mesostructure characteristics significantly affect meso-failure evolution mechanism and the macro-mechanical characteristics of soil-rock mixture (S-RM) under external forces. It is very important for the improvement of theoretical system of S-RM mechanics to study the mesostructural mechanics of S-RM based on its mesostructural characteristics. Accordingly, the statistics, geometry, random simulation techniques, etc. are used, and the random mesostructure generation system of S-RM based on arbitrary polygonal and elliptic rock blocks(R-SRM2D) has been developed. Based on R-SRM2D, a series of random S-RM samples with different rock block contents, granularity compositions, rock block spatial distributions and soil-rock interfaces are generated, which is used to study the relationship between mesostructure difference and meso-failure mechanics or macro- mechanical characteristics of S-RM by numerical test. Meaningful results have been obtained theoretically. It is indicated that with the increment of rock block content, the elastic modulus and uniaxial compressive strength of S-RM increase; at a certain rock block content, the macro-strength of S-RM decreases with the increment of rock block fractal dimension; the compressive strength of S-RM reaches maximum value when the longer axis of rock blocks is perpendicular or parallel to the principal stress axis; when the angle between the longer axis of rock blocks and the principal stress axis is equal to (45°-ψS/2), the compressive strength of S-RM reaches minimum value; the cementation action of soil-rock interface makes the macro-strength of S-RM increases obviously, whose uniaxial compressive strength increases nearly twice. |
| ISSN | 1000-6915 2011 SCImago Journal Rankings: 0.048 |
| References | References in Scopus |
| dc.contributor.author | Xu, W |
|---|---|
| dc.contributor.author | Hu, R |
| dc.contributor.author | Yue, ZQ |
| dc.date.accessioned | 2012-06-26T06:05:16Z |
| dc.date.available | 2012-06-26T06:05:16Z |
| dc.date.issued | 2009 |
| dc.description.abstract | The mesostructure characteristics significantly affect meso-failure evolution mechanism and the macro-mechanical characteristics of soil-rock mixture (S-RM) under external forces. It is very important for the improvement of theoretical system of S-RM mechanics to study the mesostructural mechanics of S-RM based on its mesostructural characteristics. Accordingly, the statistics, geometry, random simulation techniques, etc. are used, and the random mesostructure generation system of S-RM based on arbitrary polygonal and elliptic rock blocks(R-SRM2D) has been developed. Based on R-SRM2D, a series of random S-RM samples with different rock block contents, granularity compositions, rock block spatial distributions and soil-rock interfaces are generated, which is used to study the relationship between mesostructure difference and meso-failure mechanics or macro- mechanical characteristics of S-RM by numerical test. Meaningful results have been obtained theoretically. It is indicated that with the increment of rock block content, the elastic modulus and uniaxial compressive strength of S-RM increase; at a certain rock block content, the macro-strength of S-RM decreases with the increment of rock block fractal dimension; the compressive strength of S-RM reaches maximum value when the longer axis of rock blocks is perpendicular or parallel to the principal stress axis; when the angle between the longer axis of rock blocks and the principal stress axis is equal to (45°-ψS/2), the compressive strength of S-RM reaches minimum value; the cementation action of soil-rock interface makes the macro-strength of S-RM increases obviously, whose uniaxial compressive strength increases nearly twice. |
| dc.description.nature | Link_to_subscribed_fulltext |
| dc.identifier.citation | Yanshilixue Yu Gongcheng Xuebao/Chinese Journal Of Rock Mechanics And Engineering, 2009, v. 28 n. 8, p. 1652-1665 [How to Cite?] |
| dc.identifier.epage | 1665 |
| dc.identifier.issn | 1000-6915 2011 SCImago Journal Rankings: 0.048 |
| dc.identifier.issue | 8 |
| dc.identifier.scopus | eid_2-s2.0-69249106489 |
| dc.identifier.spage | 1652 |
| dc.identifier.uri | http://hdl.handle.net/10722/150505 |
| dc.identifier.volume | 28 |
| dc.language | eng |
| dc.publisher.place | China |
| dc.relation.ispartof | Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering |
| dc.relation.references | References in Scopus |
| dc.subject | Biaxial Test |
| dc.subject | Mesostructural Mechanics (M-Sm) |
| dc.subject | Numerical Test |
| dc.subject | Random Mesostructure Generation System Of Soil-Rock Mixture (R-Srm2d) |
| dc.subject | Random Simulation |
| dc.subject | Rock And Soil Mechanics |
| dc.subject | Soil-Rock Mixture(S-Rm) |
| dc.title | Development of random mesostructure generating system of soil-rock mixture and study of its mesostructural mechanics based on numerical test |
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- Institute of Geology and Geophysics Chinese Academy of Sciences
- China Institute of Water Resources and Hydropower Research