|本期目录/Table of Contents|

[1]孙冰,袁登,曾晟,等.爆炸应力波在层状节理岩体中的传播规律试验研究[J].中国安全生产科学技术,2015,11(11):118-123.[doi:10.11731/j.issn.1673-193x.2015.11.020]
 SUN Bing,YUAN Deng,ZENG Sheng,et al.Experimental study on propagation law of explosion stress wave in bedding joint rock mass[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(11):118-123.[doi:10.11731/j.issn.1673-193x.2015.11.020]
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爆炸应力波在层状节理岩体中的传播规律试验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年11期
页码:
118-123
栏目:
职业安全卫生管理与技术
出版日期:
2015-11-30

文章信息/Info

Title:
Experimental study on propagation law of explosion stress wave in bedding joint rock mass
文章编号:
1673-193X(2015)-11-0118-06
作者:
孙冰1袁登1曾晟2刘其兵2
1. 南华大学 城市建设学院,湖南 衡阳 421001;2. 南华大学 核资源工程学院,湖南 衡阳 421001
Author(s):
SUN Bing1 YUAN Deng1 ZENG Sheng2 LIU Qi-bing2
1. School of Urban Construction, University of South China, Hengyang Hunan 421001, China; 2. School of Nuclear Resources, University of South China, Hengyang Hunan 421001, China
关键词:
爆炸应力波层状节理岩体应力波衰减 峰值速度
Keywords:
explosion stress wave bedding joint rock mass attenuation of stress wave peak velocity
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.11.020
文献标志码:
A
摘要:
为了研究爆炸应力波在岩体中的传播规律,基于相似理论,开展了爆炸应力波在层状节理岩体中衰减的实验研究。研究表明,节理阻碍 应力波的传播且存在各向异性;对于垂直或小角度入射节理的应力波,在垂直方向和纵向的衰减很明显并且幅度较大,在横向衰减不明显;对 于斜入射节理的应力波,横向和垂直方向没有明显的衰减,纵向的衰减很明显并且幅度较大;应力波的合成峰值速度与炮孔密集度之间的关系 密切,当炮孔间距超过一定距离时,实际测得的速度时程为最近药包爆破产生的应力波,并非总药量产生的应力波的叠加。
Abstract:
To investigate the propagation rule of explosion stress wave in rock mass, based on the similarity theory, the experiments were carried out to study the attenuation of explosive stress wave in the bedding joint rock mass. The results showed that the propagation of joint block stress wave exists anisotropy. For the stress wave of vertical or small angle incidence joint, the attenuation in vertical direction and longitudinal direction are obvious, with a larger range, while the attenuation in transverse direction is not obvious. For the stress wave of oblique incidence joint, the attenuation in transverse direction and vertical direction are not obvious, while the attenuation in longitudinal direction is obvious, with a larger range. The synthetic peak speed of explosion stress wave has a close relationship with blast hole intensity. When the spacing among each blast hole is more than a certain distance, the velocity-time curve of actual measuring is the stress wave produced by the explosion of recent charge, rather than the overlying of stress wave produced by the total charge.

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(51204098);湖南省科技厅重点研发计划(2015SK2058-4)
更新日期/Last Update: 2015-12-15