工程爆破

2014, v.20(05) 50-54+58

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长柱药包爆破振动位移特性研究
STUDY ON THE DISPLACEMENT CHARACTERISTICS OF BLASTING VIBRATION ABOUT LONG CYLINDRICAL CHARGE

吴建;陈士海;
WU Jian;CHEN Shi-hai;College of Civil Engineering,Huaqiao University;College of Civil Engineering and Architecture,Shandong University of Science and Technology;

摘要(Abstract):

通过研究长柱药包爆破振动波在围岩介质中的传播规律,得到了长柱药包爆破产生的围岩介质位移数值解。对爆破质点位移的分析表明,质点水平和竖向位移在距离爆源一定水平距离时达到最大,该距离与药包的长度和埋深有关。而沿着竖向的质点位移分布规律表明,长柱爆破振动效应在柱体中心两侧并不是对称的。这些规律对进一步研究长柱爆破振动效应有一定的指导意义。
The numerical solution of particle displacement about surrounding rock was obtained by researching the propagation law of vibration wave in surrounding medium induced by long cylindrical charge blasting.Analysis showed that particle horizontal and vertical displacement achieved the maximum when the horizontal distance from explosion source achieved a certain distance which associated with the charge length and depth.However,the particle displacement distribution law along the vertical showed that the effects of long cylindrical blasting were not central symmetry.These laws have certain guiding significance to the further research of blasting vibration about long cylindrical charge.

关键词(KeyWords): 柱状药包;岩石爆破;爆破地震波;质点位移
Cylindrical charge;Rock blasting;Blasting seismic wave;Particle displacement

Abstract:

Keywords:

基金项目(Foundation): 高等学校博士学科点专项科研基金(20113718110002);; 爆炸冲击防灾减灾国家重点实验室开放课题(DPMEIKF201307);; 华侨大学科研基金项目(13BS402)

作者(Author): 吴建;陈士海;
WU Jian;CHEN Shi-hai;College of Civil Engineering,Huaqiao University;College of Civil Engineering and Architecture,Shandong University of Science and Technology;

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