[1]刘小鸣,陈士海,胡帅伟.爆破振动震源荷载函数的确定[J].华侨大学学报(自然科学版),2019,40(2):172-178.[doi:10.11830/ISSN.1000-5013.201809005]
　LIU Xiaoming,CHEN Shihai,HU Shuaiwei.Determination of Blasting Vibration Source Load Function[J].Journal of Huaqiao University(Natural Science),2019,40(2):172-178.[doi:10.11830/ISSN.1000-5013.201809005]
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爆破振动震源荷载函数的确定()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第40卷
期数:
2019年第2期
页码:
172-178
栏目:
出版日期:
2019-03-20

文章信息/Info

Title:
Determination of Blasting Vibration Source Load Function
文章编号:
1000-5013(2019)02-0172-07
作者:
刘小鸣1;  陈士海1; 2;  胡帅伟1
1. 华侨大学 土木工程学院, 福建 厦门 361021;2. 华侨大学 福建省隧道与城市地下空间工程技术研究中心, 福建 厦门 361021
Author(s):
LIU Xiaoming1;  CHEN Shihai1; 2;  HU Shuaiwei1
1. College of Civil Engineering, Huaqiao University, Xiamen 361021, China; 2. Fujian Research Center for Tunneling and Urban Underground Space Engineering, Huaqiao University, Xiamen 361021, China
关键词:
爆破振动;  爆破;  震源荷载;  破坏区
Keywords:
blasting vibration;  blasting;  vibration source load;  damage zone
分类号:
TD23
DOI:
10.11830/ISSN.1000-5013.201809005
文献标志码:
A
摘要:
为研究集中装药爆炸作用下的爆破振动的震源荷载函数,提出确定装药爆破破坏区发展的动力学计算简图.通过爆破振动震源荷载的理论计算公式,讨论炸药类型、岩石性质对震源荷载特性的影响.结果表明:不同炸药类型和岩石性质的震源荷载曲线形状差别不大,在相同的装药条件下,对于同一种岩石,岩石震源荷载峰值随着弹性模量的增大而减小,随着内摩擦角和黏聚力的增大而增大;震源荷载作用的衰减速度随着黏聚力的增大而加快,但内摩擦角对震源荷载的衰减影响较小;常见的指数衰减型函数能很好地拟合理论计算结果,证明文中震源荷载计算结果的可靠性.
Abstract:
In order to study the source load function of blasting vibration caused by concentrated charge explosion, a simplified dynamic calculation diagram was presented to determe the development of the blasting damage zone. Based on the theoretical calculation formula of the blasting vibration source load, and the influence of explosive types and rock properties on the blasting vibration source load characteristics was discussed. The calculation results show that the shapes of the source load curves of different explosive types and rock properties are similar. Under the same charging conditions, for the same rock, the peak value of source load decreases as the elastic modulus of rock increases, but increases as the internal friction angle and cohesion of rock increase; the attenuation of source load increases as the cohesion increases, but the internal friction angle has little effect on the attenuation of source load. The common exponential decay function can fit the calculation results well, which proves the reliability of the calculation results of the source load.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2018-09-05
通信作者: 陈士海(1964-),男,教授,博士,博士生导师,主要从事岩土与地下工程的研究.E-mail:cshblast@163.com.
基金项目: 国家自然科学基金资助项目(11672112); 爆炸冲击防灾减灾国家重点实验室开放课题资助项目(DPMEIKF201307); 华侨大学高层次人才科研启动项目(13BS402)
更新日期/Last Update: 2019-03-20