[1]王睿,袁岽洋,党发宁,等.新建隧道下穿既有道路爆破施工影响范围[J].深圳大学学报理工版,2017,34(3):238-244.[doi:10.3724/SP.J.1249.2017.03238]
 Wang Rui,Yuan Dongyang,Dang Faning,et al.Influence scope of blasting vibration for construction of new tunnel undercrossing existing roads[J].Journal of Shenzhen University Science and Engineering,2017,34(3):238-244.[doi:10.3724/SP.J.1249.2017.03238]
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新建隧道下穿既有道路爆破施工影响范围()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第34卷
期数:
2017年第3期
页码:
238-244
栏目:
土木建筑工程
出版日期:
2017-05-30

文章信息/Info

Title:
Influence scope of blasting vibration for construction of new tunnel undercrossing existing roads
文章编号:
201703003
作者:
王睿12袁岽洋2党发宁1卢泽霖2杨战博3杨欢3邓祥辉2
1)西安理工大学土木建筑工程学院,陕西西安 710048
2)西安工业大学建筑工程学院,陕西西安 710021
3)中交第一公路工程局有限公司,北京 100085
Author(s):
Wang Rui12 Yuan Dongyang2 Dang Faning1 Lu Zelin2 Yang Zhanbo3 Yang Huan3 and Deng Xianghui2
1) School of Civil Engineering and Architecture, Xi’an University of Technology, Xi’an 710048, Shaanxi Province, P.R.China
2) School of Civil and Architecture Engineering, Xi’an Technological University, Xi’an 710021, Shaanxi Province, P.R.China
3) First Highway Engineering Bureau Co., Ltd., Beijing 100085, P.R.China
关键词:
隧道工程爆破施工爆破振动振动速度振动频率既有道路
Keywords:
highway tunnel blasting construction blasting vibration vibration velocity vibration frequency existing roads
分类号:
U 451
DOI:
10.3724/SP.J.1249.2017.03238
文献标志码:
A
摘要:
以宝汉高速爆破施工为例,通过现场监测关键质点爆破振动速度,研究爆破振动对临近既有道路的影响范围. 研究结果表明,爆破振动波的主频率在10~50 Hz内,不会使周围临近既有道路与其产生共振. 从现场测试结果可知,由于垂直振速大于径向振速和切向振速,且垂直振动对建筑物破坏尤为显著,故在类似工况下爆破振动监测应该以监测垂直振速为主. 爆破振动波对既有道路的影响范围为30 m,与理论值相符.当浅埋大断面软弱围岩隧道下穿既有道路施工爆破的安全允许质点振动速度小于2.0 cm/s时,可确保既有道路结构和交通安全.研究可为此类隧道工程的施工提供借鉴.
Abstract:
By taking the blasting construction of the Baohan highway project as an example, this paper focuses on the blasting vibration influence on the existing roads nearby by monitoring the blasting vibration velocity. The results show that existing roads nearby will not resonate with the blasting when the dominant frequency of blasting vibration is between 10-50 Hz during monitoring of tunnel blasting construction. Based on the in-situ monitoring results, the vertical vibration velocity should be principally monitored because it is higher than the radial and tangential vibration velocities and it is significantly destructive to the buildings. To ensure the safety of structures and transportation of existing roads, the blasting vibration velocities of key points are supposed to be less than 2.0 cm/s for existing roads of the shallow-buried tunnel underpass with large cross-section and soft surrounding rock. Furthermore, the monitoring data show that the influence scope of blasting vibration wave to existing roads is about 30 m, which is consistent with the theoretical calculation. These results provide references to the general tunnel construction.

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备注/Memo

备注/Memo:
Received:2016-10-03;Accepted:2017-01-05
Foundation:National Natural Science Fundation of China (51679199); Key Laboratory Project of Shaanxi Science & Technology Co-ordination & Innovation Project (2014SZS15-Z01); Principal Foundation Program of Xi’an Technological University (XAGDXJJ16003)
Corresponding author:Professor Dang Faning.E-mail: dangfn@163.com
Citation:Wang Rui, Yuan Dongyang, Dang Faning,et al.Influence scope of blasting vibration for construction of new tunnel undercrossing existing roads[J]. Journal of Shenzhen University Science and Engineering, 2017, 34(3): 238-244.(in Chinese)
基金项目:国家自然科学基金资助项目(51679199);陕西省科技统筹创新工程重点实验室资助项目(2014SZS15-Z01);西安工业大学校长基金资助项目(XAGDXJJ16003)
作者简介:王睿(1981—),男,西安工业大学讲师、博士研究生.研究方向:岩土与隧道工程.E-mail:wangrui@xatu.edu.cn
引文:王睿,袁岽洋,党发宁,等.新建隧道下穿既有道路爆破施工影响范围[J]. 深圳大学学报理工版,2017,34(3):238-244.
更新日期/Last Update: 2017-04-20