Study of Rock Blasting Failure Pattern with One Free Boundary
The study of rock blasting failure pattern is of engineering importance. In order to investigate rock blasting failure pattern with one free boundary, high-speed photography technology is introduced into the two-dimensional granite model. Through high-speed camera images, a crack that originated fro...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/1926824 |
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| _version_ | 1832555069579460608 |
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| author | Jun Yang Xin Liu Zhenyang Xu Hongliang Tang Qi Yu |
| author_facet | Jun Yang Xin Liu Zhenyang Xu Hongliang Tang Qi Yu |
| author_sort | Jun Yang |
| collection | DOAJ |
| description | The study of rock blasting failure pattern is of engineering importance. In order to investigate rock blasting failure pattern with one free boundary, high-speed photography technology is introduced into the two-dimensional granite model. Through high-speed camera images, a crack that originated from spalling is observed and then propagates inward. By using the high-speed digital image correlation method, the full-strain fields on the surface of the specimens are calculated. The preliminary results show that von Mises strain localization appears on the specimen surface near the free boundary. The axial strains near that crack present three kinds of characteristics. There are the joint action areas of the strain localization by analyzing strains in different directions, and the strain localizations are related to the crack propagation. Ultimately, after analysis of the experimental results, the preliminary diagrammatic drawing of rock blasting failure pattern under stress wave action with one free boundary is drawn. |
| format | Article |
| id | doaj-art-bd456a6ef18b4a05aa4dba5494d1e7a6 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-bd456a6ef18b4a05aa4dba5494d1e7a62025-02-03T05:49:39ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/19268241926824Study of Rock Blasting Failure Pattern with One Free BoundaryJun Yang0Xin Liu1Zhenyang Xu2Hongliang Tang3Qi Yu4State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Mining Engineering, University of Science and Technology Liaoning, Anshan 114051, Liaoning, ChinaState Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, ChinaChina Ordnance Industry Fire and Explosives Engineering and Safety Technology Research Institute, China North Industries Group Corporation Limited, Beijing 100053, ChinaThe study of rock blasting failure pattern is of engineering importance. In order to investigate rock blasting failure pattern with one free boundary, high-speed photography technology is introduced into the two-dimensional granite model. Through high-speed camera images, a crack that originated from spalling is observed and then propagates inward. By using the high-speed digital image correlation method, the full-strain fields on the surface of the specimens are calculated. The preliminary results show that von Mises strain localization appears on the specimen surface near the free boundary. The axial strains near that crack present three kinds of characteristics. There are the joint action areas of the strain localization by analyzing strains in different directions, and the strain localizations are related to the crack propagation. Ultimately, after analysis of the experimental results, the preliminary diagrammatic drawing of rock blasting failure pattern under stress wave action with one free boundary is drawn.http://dx.doi.org/10.1155/2020/1926824 |
| spellingShingle | Jun Yang Xin Liu Zhenyang Xu Hongliang Tang Qi Yu Study of Rock Blasting Failure Pattern with One Free Boundary Advances in Civil Engineering |
| title | Study of Rock Blasting Failure Pattern with One Free Boundary |
| title_full | Study of Rock Blasting Failure Pattern with One Free Boundary |
| title_fullStr | Study of Rock Blasting Failure Pattern with One Free Boundary |
| title_full_unstemmed | Study of Rock Blasting Failure Pattern with One Free Boundary |
| title_short | Study of Rock Blasting Failure Pattern with One Free Boundary |
| title_sort | study of rock blasting failure pattern with one free boundary |
| url | http://dx.doi.org/10.1155/2020/1926824 |
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