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[1]梁瑞,解丽娜,周文海,等.基于不同空气间隔装药结构的爆破效果动力响应研究[J].中国安全生产科学技术,2018,14(7):175-180.[doi:10.11731/j.issn.1673-193x.2018.07.026]
 LIANG Rui,XIE Lina,ZHOU Wenhai,et al.Research on dynamic response of blasting effect based on different air-deck charge structures[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(7):175-180.[doi:10.11731/j.issn.1673-193x.2018.07.026]
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基于不同空气间隔装药结构的爆破效果动力响应研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年7期
页码:
175-180
栏目:
职业安全卫生管理与技术
出版日期:
2018-07-31

文章信息/Info

Title:
Research on dynamic response of blasting effect based on different air-deck charge structures
文章编号:
1673-193X(2018)-07-0175-06
作者:
梁瑞1解丽娜1周文海1陈必港2
(1.兰州理工大学 石油化工学院,甘肃 兰州 730050;2.福建省交通科学技术研究所,福建 福州 350116)
Author(s):
LIANG Rui1 XIE Lina1 ZHOU Wenhai1 CHEN Bigang2
(1. School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou Gansu 730050, China;2. Fujian Provincial Institute of Transportation Science and Technology, Fuzhou Fujian 350116, China)
关键词:
空气间隔孔壁压力有限元分析装药结构有效应力时程曲线
Keywords:
air-deck bore wall pressure finite element analysis charge structure effective stress timehistory curve
分类号:
X936;TU45
DOI:
10.11731/j.issn.1673-193x.2018.07.026
文献标志码:
A
摘要:
研究了不同空气间隔装药结构对光面爆破效果的影响,利用ANSYS/LS-DYNA动力分析软件建立实体模型,对5种不同空气间隔装药结构进行数值模拟,并对应力云图及有效应力时程曲线比较分析。研究结果表明:数值计算结果和模拟结果基本吻合,下部装药结构孔口应力集中,基本不采用;短进尺掘进宜采用上部空气间隔装药;中等长度掘进宜采用中部空气间隔装药;在不拒爆条件下长进尺掘进宜采用分段空气间隔装药或小药卷直径装药。
Abstract:
The influence of different airdeck charge structures on the smooth blasting effect was studied. A solid model was established by using the ANSYS/LSDYNA dynamic analysis software, then the numerical simulation was carried out on five different airdeck charge structures, and the stress cloud maps and the effective stress timehistory curves were analyzed and compared. The results showed that the results of numerical calculation were basically consistent with the simulation results. The lower charge structure should not be adopted basically due to the stress concentration in the orifice. The upper airdeck charge was preferred for the short footage excavation, the middle airdeck charge was preferred for the mediumlength excavation, and the divided airdeck charge or small cartridge diameter charge was preferred for the long footage excavation under the nonmisfire condition.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金项目(51076061);甘肃省自然基金项目(B061709);甘肃省自然科学基金项目(1610RJZA029)
更新日期/Last Update: 2018-08-09