Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics
It is essential to determine rockmass mechanical parameters in stability assessment. The structural z is the main factor in this regard, and we know little about the relationship between mechanical parameters and multiple structure planes. In this paper, we have conducted a series of numerical tests...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/2318063 |
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| _version_ | 1832563302004162560 |
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| author | Jihong Wei Yan Men Shaorui Sun Yajie Wang Wei Qian Wei Shi |
| author_facet | Jihong Wei Yan Men Shaorui Sun Yajie Wang Wei Qian Wei Shi |
| author_sort | Jihong Wei |
| collection | DOAJ |
| description | It is essential to determine rockmass mechanical parameters in stability assessment. The structural z is the main factor in this regard, and we know little about the relationship between mechanical parameters and multiple structure planes. In this paper, we have conducted a series of numerical tests to obtain mechanical parameters for a dam foundation in Southwest China. The biaxial numerical test was performed based on the discrete element method. This numerical test considers the spacing, types, dip angles, and size effect. We established a relationship of mechanical parameters between small size lab samples and large size field samples. We forecasted the strength parameters for a spillway slope in Southwest China. The dip angle has a significant effect on the slope strength and stability. In this case, the rockmass fracture stress-dip angle curve forms a U-shaped distribution. The X-shaped double structure plane demonstrates severe strength weakening relative to a single structure plane. As structure plane spacing reaches a certain level, its influence on rockmass strength diminishes. The elementary volume of the rockmass for dam foundation analysis is about 4 m × 4 m × 4 m. |
| format | Article |
| id | doaj-art-8d480b26155d45e7b801465a69703699 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-8d480b26155d45e7b801465a697036992025-02-03T01:20:29ZengWileyAdvances in Civil Engineering1687-80861687-80942018-01-01201810.1155/2018/23180632318063Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination CharacteristicsJihong Wei0Yan Men1Shaorui Sun2Yajie Wang3Wei Qian4Wei Shi5School of Earth Science and Engineering, Hohai University, Nanjing 210098, ChinaSchool of Earth Science and Engineering, Hohai University, Nanjing 210098, ChinaSchool of Earth Science and Engineering, Hohai University, Nanjing 210098, ChinaShanghai Tunnel Engineering Co. Ltd., Shanghai 200082, ChinaSchool of Earth Science and Engineering, Hohai University, Nanjing 210098, ChinaSchool of Earth Science and Engineering, Hohai University, Nanjing 210098, ChinaIt is essential to determine rockmass mechanical parameters in stability assessment. The structural z is the main factor in this regard, and we know little about the relationship between mechanical parameters and multiple structure planes. In this paper, we have conducted a series of numerical tests to obtain mechanical parameters for a dam foundation in Southwest China. The biaxial numerical test was performed based on the discrete element method. This numerical test considers the spacing, types, dip angles, and size effect. We established a relationship of mechanical parameters between small size lab samples and large size field samples. We forecasted the strength parameters for a spillway slope in Southwest China. The dip angle has a significant effect on the slope strength and stability. In this case, the rockmass fracture stress-dip angle curve forms a U-shaped distribution. The X-shaped double structure plane demonstrates severe strength weakening relative to a single structure plane. As structure plane spacing reaches a certain level, its influence on rockmass strength diminishes. The elementary volume of the rockmass for dam foundation analysis is about 4 m × 4 m × 4 m.http://dx.doi.org/10.1155/2018/2318063 |
| spellingShingle | Jihong Wei Yan Men Shaorui Sun Yajie Wang Wei Qian Wei Shi Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics Advances in Civil Engineering |
| title | Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics |
| title_full | Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics |
| title_fullStr | Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics |
| title_full_unstemmed | Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics |
| title_short | Numerical Tests Research on Mechanical Parameters of Rockmass considering Structural Plane Combination Characteristics |
| title_sort | numerical tests research on mechanical parameters of rockmass considering structural plane combination characteristics |
| url | http://dx.doi.org/10.1155/2018/2318063 |
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