The influence of the number of free surfaces on the energy distribution and attenuation law of blasting vibration signals from peripheral holes: field experiment and simulation

Author:

Lan Riyan,Wang Zhen,Lu Jianyou,Zhou Zilong,Chen Lu,Gao Shan

Abstract

Tunnels are commonly excavated using drilling and blasting methods, and the surrounding rock is greatly affected by the vibration of surrounding hole blasting. To study the influence of the number of free surfaces on the energy distribution and attenuation law of surrounding hole blasting vibration signals, on-site experiments and numerical simulation experiments were conducted. The research results indicate that the higher the number of free surfaces, the smaller the peak vibration velocity. The longitudinal Fourier main frequency decreases with the distance from the monitoring point. The more free surface, the greater the centroid frequency and zero crossing frequency. In addition, numerical simulation shows that the degree of rock fragmentation after blasting increases with the increase of the number of free surface of rock.

Publisher

Frontiers Media SA

Subject

General Earth and Planetary Sciences

Reference30 articles.

1. Explosive charge mass and peak particle velocity (PPV)-frequency relation in mining blast;Aldas;J. Geophys. Eng.,2010

2. The influence of burden on blast vibration;Blair;Fragblast,2001

3. Review of criteria for estimating damage to residences from blasting vibration DuvallW. I. FogelsonD. E. 1962

4. Generation of strain waves in rock by an explosion in a spherical cavity;Favreau;J. Geophys. Res.,1969

5. Comparison of blast-induced damage between presplit and smooth blasting of high rock slope;Hu;Rock Mech. Rock Eng.,2014

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3