• 中国科学引文数据库(CSCD)来源期刊
  • 中文核心期刊中文科技核心期刊
  • Scopus RCCSE中国核心学术期刊
  • 美国EBSCO数据库 俄罗斯《文摘杂志》
  • 《日本科学技术振兴机构数据库(中国)》
二维码

隧道建设(中英文) ›› 2016, Vol. 36 ›› Issue (7): 812-818.DOI: 10.3973/j.issn.1672-741X.2016.07.007

• 研究与探索 • 上一篇    下一篇

动静条件下隧道爆破建筑结构放大效应特征分析

胡辉荣1, 黄华东2,3, 王先义3, 李连超3   

  1. (1. 中铁西北科学研究院有限公司, 甘肃 兰州 730000; 2. 重庆市市政设计研究院, 重庆 400020;  3. 重庆交通大学山区桥梁与隧道工程国家重点实验室培育基地, 重庆 400074)
  • 收稿日期:2016-01-20 修回日期:2016-04-21 出版日期:2016-07-20 发布日期:2016-07-27
  • 作者简介:胡辉荣(1981—),男,四川南充人,2007年毕业于重庆交通大学,桥梁与隧道工程专业,硕士,工程师,主要从事公路隧道设计、施工、监控量测方面的研究工作。Email: 568793962@qq.com。
  • 基金资助:

    重庆铁路枢纽复杂环境岩石路堑与浅埋隧道安全控爆技术(2013Y080)

Study of Characteristics of Vibration Velocity Amplifying Effect of  Building Structures Induced by Tunnel Blasting under  Dynamic and Static Conditions

HU Huirong1, HUANG Huadong2, 3, WANG Xianyi3, LI Lianchao3   

  1. (1. Northwest Research Institute Co., Ltd. of CREC, Lanzhou 730000, Gansu, China;  2. Chongqing Municipal Administration Design and Research Institute, Chongqing 400020, China;  3. State Key Laboratory Cultivation Base for Bridge and Tunnel Engineering in Mountain Areas,  Chongqing Jiaotong University, Chongqing 400074, China)
  • Received:2016-01-20 Revised:2016-04-21 Online:2016-07-20 Published:2016-07-27

摘要:

为了对不同动静条件下隧道爆破地震波对高层建筑结构放大效应的影响情况进行探讨,基于实测数据建立的时程特征分析方法,建立以动静条件下隧道爆破-围岩-建筑结构多场耦合模型,对高层建筑结构放大效应的规律及结论进行探讨与分析。结果表明: 在动静条件下建筑结构的响应特征不相同,放大效应规律也不一样; 静条件下工况相比动条件下放大效应更为明显,而动条件下的放大效应规律更偏向于贴合实测情形且表现更为复杂化; 通过对建筑结构在不同动静条件下的放大倍数进行对比分析,单纯从岩性条件上来评价,可推测出较软围岩工况的放大效应相比较硬围岩工况更为强烈。

关键词: 隧道爆破, 地震波, 建筑结构, 放大效应, 工况, 安全控制

Abstract:

A threedimensional multifield coupling model of tunnel blastingsurrounding rockbuilding structure under dynamic and static conditions is established based on data measured; and characteristics of vibration velocity amplifying effect of building structures induced by tunnel blasting is discussed and analyzed. The analytical results show that: 1) The response characteristics and vibration velocity amplifying effect of building structures under dynamic condition are different from those under static condition. 2) The vibration velocity amplifying effect of building structures under static condition is more obvious than that under dynamic condition; and the vibration velocity amplifying effect of building structures under dynamic condition is complicated and coincides with data measured. 3) The vibration velocity amplifying effect of building structures induced by tunnel blasting in soft ground is more obvious than that in hard ground.

Key words: tunnel blasting, seismic wave, building structure, amplifying effect, conditions, safety control

中图分类号: