The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method
The weak interlayers in an open-pit blasting bench affect the uniform distribution of explosive energy. To explore the mechanistic influence of a weak interlayer on the effect of blasting, 9 sets of numerical blasting experiments were constructed using the orthogonal experiment method. The degree of...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/7814954 |
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| _version_ | 1850167429538250752 |
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| author | Senlin Nan Weiming Guan Tao Hu Weisheng Shi Junhui Zhang Hui Chen Junyu Cong Huabin Liu |
| author_facet | Senlin Nan Weiming Guan Tao Hu Weisheng Shi Junhui Zhang Hui Chen Junyu Cong Huabin Liu |
| author_sort | Senlin Nan |
| collection | DOAJ |
| description | The weak interlayers in an open-pit blasting bench affect the uniform distribution of explosive energy. To explore the mechanistic influence of a weak interlayer on the effect of blasting, 9 sets of numerical blasting experiments were constructed using the orthogonal experiment method. The degree of bench crushing after blasting, the maximum velocity of the rock mass at 0.05 s, and the displacement of the back of the bench were thus investigated. The analysis revealed that the impact of the thickness of the weak interlayer, its wave impedance, and its location of occurrence on the bench blasting indicated an ordered decreasing effect. Based on this, the evaluation method for the master weak interlayer and the design plan of the specific charge structure were proposed. The evaluated design proposals were verified through both numerical and field tests. The research results will provide a scientific basis to determine a reasonable charge structure of the bench blasting of rock masses containing weak interlayers. |
| format | Article |
| id | doaj-art-d9d65bd12eeb43a896abb5371420004b |
| institution | OA Journals |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d9d65bd12eeb43a896abb5371420004b2025-08-20T02:21:13ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/78149547814954The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation MethodSenlin Nan0Weiming Guan1Tao Hu2Weisheng Shi3Junhui Zhang4Hui Chen5Junyu Cong6Huabin Liu7College of Geology and Mines Engineering, Xinjiang University, Urumqi 830047, ChinaCollege of Geology and Mines Engineering, Xinjiang University, Urumqi 830047, ChinaXinJiang Coal Design and Research Institute Co., Ltd., Urumqi 830091, ChinaGezhouba Yipuli Xinjiang Blasting Engineering Co., Ltd., Urumqi 830046, ChinaCollege of Geology and Mines Engineering, Xinjiang University, Urumqi 830047, ChinaCollege of Geology and Mines Engineering, Xinjiang University, Urumqi 830047, ChinaGDEM Technology Beijing, Co., Ltd., Beijing 100096, ChinaCollege of Geology and Mines Engineering, Xinjiang University, Urumqi 830047, ChinaThe weak interlayers in an open-pit blasting bench affect the uniform distribution of explosive energy. To explore the mechanistic influence of a weak interlayer on the effect of blasting, 9 sets of numerical blasting experiments were constructed using the orthogonal experiment method. The degree of bench crushing after blasting, the maximum velocity of the rock mass at 0.05 s, and the displacement of the back of the bench were thus investigated. The analysis revealed that the impact of the thickness of the weak interlayer, its wave impedance, and its location of occurrence on the bench blasting indicated an ordered decreasing effect. Based on this, the evaluation method for the master weak interlayer and the design plan of the specific charge structure were proposed. The evaluated design proposals were verified through both numerical and field tests. The research results will provide a scientific basis to determine a reasonable charge structure of the bench blasting of rock masses containing weak interlayers.http://dx.doi.org/10.1155/2021/7814954 |
| spellingShingle | Senlin Nan Weiming Guan Tao Hu Weisheng Shi Junhui Zhang Hui Chen Junyu Cong Huabin Liu The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method Shock and Vibration |
| title | The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method |
| title_full | The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method |
| title_fullStr | The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method |
| title_full_unstemmed | The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method |
| title_short | The Influence Mechanism of the Master Weak Interlayer on Bench Blasting Effect and Its Evaluation Method |
| title_sort | influence mechanism of the master weak interlayer on bench blasting effect and its evaluation method |
| url | http://dx.doi.org/10.1155/2021/7814954 |
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