[1]费鸿禄①,国志雨①,杨智广①,等.隧道掘进爆破振动在地表及上部岩体传播特征[J].爆破器材,2016,45(04):54-60.[doi:10.3969/j.issn.1001-8352.2016.04.012]
 FEI Honglu,GUO Zhiyu,YANG Zhiguang,et al.Propagation Characteristics of Tunnel Excavation Blasting Vibration on Surface and in Upper Rock Mass[J].EXPLOSIVE MATERIALS,2016,45(04):54-60.[doi:10.3969/j.issn.1001-8352.2016.04.012]
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隧道掘进爆破振动在地表及上部岩体传播特征()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
45
期数:
2016年04
页码:
54-60
栏目:
爆破技术
出版日期:
2016-07-12

文章信息/Info

Title:
Propagation Characteristics of Tunnel Excavation Blasting Vibration on Surface and in Upper Rock Mass
文章编号:
5067
作者:
费鸿禄国志雨杨智广曲广建高英
①辽宁工程技术大学爆破技术研究院(辽宁阜新,123000)
②广州中爆数字信息科技股份有限公司(广东广州,510670)
③华南理工大学计算机科学与工程学院(广东广州,510641)
Author(s):
FEI Honglu GUO Zhiyu YANG Zhiguang QU Guangjian GAO Ying
①Blasting Technology Research Institute, Liaoning Technical University (Liaoning Fuxin, 123000)
②Guangzhou Chinablasting Digital Information Technology Co.,Ltd.(Guangdong Guangzhou, 510670)
③South China University of Technology, School of Computer Science and Engineering (Guangdong Guangzhou, 510641)
关键词:
振动信号地表及上部岩体小波包分析LS-DYNA数值模拟传播特征
Keywords:
vibration signal surface and upper rock mass wavelet packet analysis LS-DYNA numerical simulation propagation characteristics
分类号:
TD235.1;O382+.2
DOI:
10.3969/j.issn.1001-8352.2016.04.012
文献标志码:
A
摘要:
为了解隧道掘进爆破振动信号在地表及上部岩体内传播的特征,以鹤大高速小沟隧道掘进爆破为工程背景进行研究。对地表部分,现场监测后利用小波包分析对监测数据进行信号去噪重构处理,对得到的纯净信号进行时频分析及能量分布研究,进而得出振动信号沿地表的频率分布规律及能量衰减规律。对上部岩体,利用ANSYS/LS-DYNA进行数值模拟,提取关键点振速,分析得出开挖与未开挖两侧振动信号在隧道上部岩体内传播过程中的质点振速与能量衰减规律。为隧道爆破掘进动力响应研究、爆破震害评估和爆破设计的改进提供依据。
Abstract:
In order to know the propagation characteristics of tunnel excavation blasting vibration on surface and in upper rock mass, blasting excavation of Xiaogou Tunnel at Heda Express Way was studied. For the earths surface, conduct, using wavelet packet analysis method was used after site monitoring in signal denoising and reconstruction process. And time frequency analysis and energy distribution of the pure vibration signal were obtained. Then, frequency distribution law of vibration signal and energy attenuation law were got. For the upper rock mass, ANSYS/LS-DYNA software was used to simulate blasting excavation and extract vibration velocity at key points. And vibration signal particle velocity and energy attenuation law from both sides of the excavation and excavation in upper rock mass were analyzed. It provides the basis for the research on dynamic response of tunnel blasting excavation, improvement of blasting damage assessment and blasting design.

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备注/Memo

备注/Memo:
收稿日期:2016-01-28
作者简介:费鸿禄(1963-),男,教授,博导,从事工程爆破、地下工程教学和科研工作。E-mail:feihonglu@163.com
通信作者:国志雨(1992-),男,硕士,主要从事地下工程方面的研究。E-mail:970222803@qq.com
更新日期/Last Update: 2016-07-12