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[1]周春煦,赵岩.下穿铁路隧道爆破振动分析及控制方法研究*[J].中国安全生产科学技术,2022,18(11):133-140.[doi:10.11731/j.issn.1673-193x.2022.11.019]
　ZHOU Chunxu,ZHAO Yan.Study on blasting vibration analysis and control method of undercrossing railway tunnel[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2022,18(11):133-140.[doi:10.11731/j.issn.1673-193x.2022.11.019]
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下穿铁路隧道爆破振动分析及控制方法研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
18
期数:
2022年11期
页码:
133-140
栏目:
职业安全卫生管理与技术
出版日期:
2022-11-30

文章信息/Info

Title:
Study on blasting vibration analysis and control method of undercrossing railway tunnel
文章编号:
1673-193X(2022)-11-0133-08
作者:
周春煦; 赵岩
（1.江苏航运职业技术学院 船舶与海洋工程系，江苏 南通 226010；
2.中国矿业大学(北京) 力学与建筑工程学院，北京 100083 ）
Author(s):
ZHOU Chunxu;  ZHAO Yan
(1.Department of Naval Architecture and Ocean Engineering,Jiangsu Shipping College,Nantong Jiangsu 226010,China;
2.School of Mechanics and Civil Engineering,China University of Mining and Technology (Beijing),Beijing 100083,China)
关键词:
爆破振动; 现场监测; FLAC3D; 安全控制
Keywords:
blasting vibration;  on-site monitoring;  FLAC3D;  safely control
分类号:
X947
DOI:
10.11731/j.issn.1673-193x.2022.11.019
文献标志码:
A
摘要:
为了系统研究下穿铁路隧道的爆破振动响应规律及安全控制方法，通过现场实测及数值模拟方法展开分析。首先，根据实测结果得到可以反映爆破振动速度分布特征的回归模型，并基于此得出隧道爆破施工允许的最大单响药量值；其次，采用FLAC3D平台建立三维数值模型，通过现场实验结果对模型的可靠性进行校核；根据数值模拟结果，得到适用于下穿隧道控制爆破施工的安全距离的建议值。研究结果表明：隧道空洞效应对爆破振动传播规律存在一定影响，研究结果可为类似的下穿隧道爆破施工提供1种新的控制方法及控制思路。
Abstract:
In order to systematically study the blasting vibration response law and safety control method of the undercrossing railway tunnel,the analysis was carried out by means of field measurement and numerical simulation.Firstly,according to the measured results,a regression model reflecting the distribution characteristics of blasting vibration velocity was obtained,and the maximum allowable single-shot charge value for the tunnel blasting construction was obtained on this basis.Secondly,a three-dimensional numerical model was established based on the FLAC3D platform,and the reliability of the model was checked through the results of field experiments.Finally,according to the numerical simulation results,the suggested value of safety distance suitable for the controlled blasting construction of the undercrossing tunnel was obtained.The results showed that the tunnel cavity effect had certain influence on the propagation law of blasting vibration.The research can provide a new control method and control idea for the blasting construction of similar undercrossing tunnels.

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备注/Memo

备注/Memo:
收稿日期： 2022-02-08
* 基金项目： 国家自然科学基金项目（51878242）；江苏省高职院校教师专业带头人高端研修（个人访学研修）项目(2021GRGDYX007)；南通市科技计划项目(MSZ21096)；江苏高校“青蓝工程”优秀青年骨干教师培养项目（2020QLGC）
作者简介： 周春煦，硕士，副教授，主要研究方向为水利与建筑工程。
通信作者： 赵岩，博士研究生，主要研究方向为隧道爆破振动响应及损伤控制研究。
更新日期/Last Update: 2022-12-11