The mechanism of directional fracture controlled blasting and its application
Synthetically using methods including high speed laser tattoo shadow, super dynamic strain testing technology, digital laser dynamic caustics experimental system, this paper studies the cutting seam cartridge explosion wave propagation mechanism, multi-angle observation of the detonation wave propag...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Emergency Management Press
2016-08-01
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| Series: | 矿业科学学报 |
| Subjects: | |
| Online Access: | http://kykxxb.cumtb.edu.cn/article/id/6 |
| _version_ | 1811316440732532736 |
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| author | Song Junsheng Wang Yanbing Gao Xiangtao Yang Guoliang Yue Zhongwen |
| author_facet | Song Junsheng Wang Yanbing Gao Xiangtao Yang Guoliang Yue Zhongwen |
| author_sort | Song Junsheng |
| collection | DOAJ |
| description | Synthetically using methods including high speed laser tattoo shadow, super dynamic strain testing technology, digital laser dynamic caustics experimental system, this paper studies the cutting seam cartridge explosion wave propagation mechanism, multi-angle observation of the detonation wave propagation process, clearly observed explosion stress wave and explosive gas separating phenomenon.Air interval cutting seam cartridge blasting cement mortar model testing was carried out.The spatial distribution law of stress was summarized.The cutting seam cartridge decoupling blasting explosive raw crack dynamic fracture effect was analyzed.The different charge structures influence on critical raw crack extension was compared.The best decoupling coefficient is 1.67 with directional fracture controlled blasting effect was determined.It studied double hole grooving method, initiation at the same time, through the crack between the two hole and the hole of the lateral dynamic behavior of crack propagation.Finally the cutting seam cartridge directional fracture controlled blasting technology was applied in shaft and tunnel blasting construction.The directional fracture of cutting seam cartridge blasting effect was verified.This research will provide experimental basis and theoretical guidance for engineering practice. |
| first_indexed | 2024-04-13T11:48:51Z |
| format | Article |
| id | doaj.art-e0081ec2374348d9a58503fb3ef6c273 |
| institution | Directory Open Access Journal |
| issn | 2096-2193 |
| language | English |
| last_indexed | 2024-04-13T11:48:51Z |
| publishDate | 2016-08-01 |
| publisher | Emergency Management Press |
| record_format | Article |
| series | 矿业科学学报 |
| spelling | doaj.art-e0081ec2374348d9a58503fb3ef6c2732022-12-22T02:48:06ZengEmergency Management Press矿业科学学报2096-21932016-08-01111628The mechanism of directional fracture controlled blasting and its applicationSong Junsheng0Wang Yanbing1Gao Xiangtao2Yang Guoliang3Yue Zhongwen4School of Mechanics and Civil Engineering , China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering , China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering , China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering , China University of Mining and Technology, Beijing 100083, ChinaSchool of Mechanics and Civil Engineering , China University of Mining and Technology, Beijing 100083, ChinaSynthetically using methods including high speed laser tattoo shadow, super dynamic strain testing technology, digital laser dynamic caustics experimental system, this paper studies the cutting seam cartridge explosion wave propagation mechanism, multi-angle observation of the detonation wave propagation process, clearly observed explosion stress wave and explosive gas separating phenomenon.Air interval cutting seam cartridge blasting cement mortar model testing was carried out.The spatial distribution law of stress was summarized.The cutting seam cartridge decoupling blasting explosive raw crack dynamic fracture effect was analyzed.The different charge structures influence on critical raw crack extension was compared.The best decoupling coefficient is 1.67 with directional fracture controlled blasting effect was determined.It studied double hole grooving method, initiation at the same time, through the crack between the two hole and the hole of the lateral dynamic behavior of crack propagation.Finally the cutting seam cartridge directional fracture controlled blasting technology was applied in shaft and tunnel blasting construction.The directional fracture of cutting seam cartridge blasting effect was verified.This research will provide experimental basis and theoretical guidance for engineering practice.http://kykxxb.cumtb.edu.cn/article/id/6directional fracture controlled blastingcutting seam cartridgedetonation wavecrack propagation |
| spellingShingle | Song Junsheng Wang Yanbing Gao Xiangtao Yang Guoliang Yue Zhongwen The mechanism of directional fracture controlled blasting and its application 矿业科学学报 directional fracture controlled blasting cutting seam cartridge detonation wave crack propagation |
| title | The mechanism of directional fracture controlled blasting and its application |
| title_full | The mechanism of directional fracture controlled blasting and its application |
| title_fullStr | The mechanism of directional fracture controlled blasting and its application |
| title_full_unstemmed | The mechanism of directional fracture controlled blasting and its application |
| title_short | The mechanism of directional fracture controlled blasting and its application |
| title_sort | mechanism of directional fracture controlled blasting and its application |
| topic | directional fracture controlled blasting cutting seam cartridge detonation wave crack propagation |
| url | http://kykxxb.cumtb.edu.cn/article/id/6 |
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