Investigation on the shock acceleration of concrete at different depths of burst

被引：0

作者：

Mu C.-M. ^{[1
,2
,3
]}

Ren H.-Q. ^{[4
]}

Shi B.-M. ^{[1
]}

机构：

[1] School of Energy Resources and Safety, Anhui University of Science and Technology, Huainan

[2] Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Hunan University of Science and Technology, Xiangtan, 411201, Hunan

[3] Key Lab of Mining Coal Safety and Efficiently Constructed by Anhui Province and Ministry of Education, Huainan

[4] The Third Research Instituteof Engineers of the General Staff, Luoyang

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2016年 / 35卷 / 03期

关键词：

Acceleration; Concrete; Depth of burst (DOB) coefficient of equivalent yield; Dimensional analysis; Explosion mechanics;

D O I：

10.13465/j.cnki.jvs.2016.03.001

中图分类号：

TU528 [混凝土及混凝土制品]; TV43 [水工混凝土和砂浆];

学科分类号：

摘要：

In order to investigate the acceleration of concrete at different scaling depth of burst (SDOB), an empirical formula of impact acceleration was deduced by using the combination of free field experiment and dimensional analysis, together with inducting the concept of DOB coefficient of equivalent yield. The results show that when SDOB is form 0.25 m/kg1/3 to 1.0m/kg1/3, the peak of impact acceleration of C30 concrete at blasting point increases along with the increases of SDOB, but the attenuation of shock acceleration of concrete is almost in the same way at different SDOB. The peak of impact acceleration increases with the increase of concrete strength, and the attenuation of acceleration is also in concert for different concrete strength. The obtained empirical formula for C30 concrete is of high degree of accuracy for predicting the shock acceleration. © 2016, Editorial Office of Journal of Vibration and Shock. All right reserved.

引用

页码：1 / 6

页数：5

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