[1]张志呈.定向卸压隔振爆破隔振材料的作用机理与试验[J].爆破器材,2011,40(05):29-32.
 ZHANG Zhicheng.On the Mechanism and Experiment of Material in the Directional Pressure-released and Vibration-isolated Blasting[J].EXPLOSIVE MATERIALS,2011,40(05):29-32.
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定向卸压隔振爆破隔振材料的作用机理与试验()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
40
期数:
2011年05
页码:
29-32
栏目:
安全与测试
出版日期:
2011-10-20

文章信息/Info

Title:
On the Mechanism and Experiment of Material in the Directional Pressure-released and Vibration-isolated Blasting
文章编号:
4368
作者:
张志呈
西南科技大学环境与资源学院(四川绵阳,621010)
Author(s):
ZHANG Zhicheng
Southwest University of science and Technology (Sichuan Mianyang, 621010)
关键词:
卸压隔振爆破半圆形管材爆轰波
Keywords:
pressure-relieved and vibration-insulated blasting semi-circle rigid plastic pipe detonation wave
分类号:
TJ510.4 TD235.37+3
文献标志码:
A
摘要:
在炮孔保留岩体的一侧药包加装半圆形硬质塑料管材,对爆轰波起到限制、阻隔、吸收、反射和滞留的作用。试验表明:46.95%的能量被吸收,应力峰值降45.31%,压力降低46.00%,反射波能量占总能量的10.00%~13.00%,使自由面方向即无塑料管材方向产生反射拉伸应力场,增大了爆炸冲量密度和能量,既加强自由面方向岩石的破碎,又使保留岩体免受爆破损伤。
Abstract:
Installing the semicircle rigid plastic pipe on the charge in the side of the kept rock at hole bottom can restrict, isolate, absorb, reflect and retain the detonation wave. The experiment result shows that 46.95% of energy was absorbed, stress peak value deduced 45.31%, the pressure deduced 46.00%, and the reflective energy was 10.00%~13.00% of the gross energy, which caused the reflective stress field in the direction of the free surface or the plastic pipe, and increased the explosive destiny and energy. Therefore the crash of the rock in the free surface is enhanced, and isolated the kept rock from the blasting damage.

参考文献/References:

[1]郭长铭,李剑. 爆轰液在阻尼管道中声吸收的实验研究[J], 爆炸与冲击. 2000,20(4):289~295.[2]王树仁,魏有志. 岩石爆破中断裂控制的研究[J], 中国矿业学院学报.1985(3):113~120.[3]肖定军,郭学彬,蒲传金. 单孔护壁爆破数值模拟[J], 化工矿物与加工.2008(7):22~24,32.[4]时党勇,李裕春,张胜民. 基于ansys/IS-dyma8?1进行显示动力分析[M]北京:清华大学出版社,2005,143~150.[5]尚晓江,苏建宇. ANYSYS/LS-DYNA 动Y分析方法与工程实例[M].北京:中国水利水电出版社,2005,257~269.

备注/Memo

备注/Memo:
收稿日期:2011-04-08 作者简介:张志呈(1933~),男,教授,主要从事工程控制爆破研究。
更新日期/Last Update: 2011-10-24