|本期目录/Table of Contents|

[1]崔光耀,石文昊,王明胜,等.高烈度地震区跨断层隧道不同厚度减震层减震效果分析*[J].中国安全生产科学技术,2021,17(7):130-135.[doi:10.11731/j.issn.1673-193x.2021.07.021]
　CUI Guangyao,SHI Wenhao,WANG Mingsheng,et al.Analysis on shock absorption effect of shock-absorbing layer with different thicknesses for fault-crossing tunnels in high seismic intensity zone[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(7):130-135.[doi:10.11731/j.issn.1673-193x.2021.07.021]
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高烈度地震区跨断层隧道不同厚度减震层减震效果分析*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年7期
页码:
130-135
栏目:
职业安全卫生管理与技术
出版日期:
2021-07-31

文章信息/Info

Title:
Analysis on shock absorption effect of shock-absorbing layer with different thicknesses for fault-crossing tunnels in high seismic intensity zone
文章编号:
1673-193X(2021)-07-0130-06
作者:
崔光耀; 石文昊; 王明胜; 邱枫博
(1.北方工业大学 土木工程学院，北京 100144；
2.中国中铁隧道集团有限公司，广东 广州 511458)
Author(s):
CUI Guangyao;  SHI Wenhao;  WANG Mingsheng;  QIU Fengbo
(1.School of Civil Engineering,North China University of Technology,Beijing 100144,China;
2.China Railway Tunnel Group Co.,Ltd.,Guangzhou Guangdong 511458,China)
关键词:
隧道工程; 高烈度地震区; 断层破碎带; 减震层; 减震效果
Keywords:
tunnel engineering;  high seismic intensity zone;  fault fracture zone;  shock-absorbing layer;  shock absorption effect
分类号:
X947
DOI:
10.11731/j.issn.1673-193x.2021.07.021
文献标志码:
A
摘要:
为进一步提高高烈度地震区跨断层隧道抗震性能，基于达万高速天坪寨隧道F1断层段，利用有限差分数值软件FLAC3D对跨断层隧道施设不同减震层厚度减震效果进行研究。结果表明：当天坪寨隧道F1断层段施设减震层厚度为150 mm时，减震效果最优，其次为200，100，50 mm；当施设150 mm减震层时，横向与竖向位移分别减小5.88%与8.50%，最大主应力减小36.02%，最小主应力减小12.21%，最大剪应力减小51.61%，最小安全系数提高52.45%～65.32%。研究结果可为高烈度地震区跨断层隧道抗震设计提供参考。
Abstract:
In order to further improve the seismic performance of the fault-crossing tunnels in high seismic intensity zone,relying on the F1 fault section in Tianpingzhai tunnel of Dazhou-Wanzhou Expressway,the finite difference numerical software FLAC3D was used to study the shock absorption effect of shock-absorbing layer with different thicknesses installed in the fault-crossing tunnel.The results showed that the 150 mm shock-absorbing layer had the best shock absorption effect for the F1 fault section in Tianpingzhai tunnel,followed by the 200 mm and 100 mm shock-absorbing layers,and the shock absorption effect of 50 mm shock-absorbing layer was the worst.When installing the 150 mm shock-absorbing layer,the lateral and vertical displacement reduced by 5.88% and 8.50% respectively,the maximum principal stress reduced by 36.02%,the minimum principal stress reduced by 12.21%,the maximum shear stress reduced by 51.61%,and the minimum safety factor increased by 52.45%~65.32%.The research results can provide reference for seismic design of fault-crossing tunnels in the high seismic intensity zones.

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备注/Memo

备注/Memo:
收稿日期： 2021-02-24
* 基金项目： 国家自然科学基金项目（51408008）；北京市属高校基本科研业务费项目（110052971921/061）；北京市大学生科学研究与创业行动计划项目(21XN216/006)
作者简介： 崔光耀，博士，副教授，主要研究方向为隧道与地下工程。
通信作者： 石文昊，硕士研究生，主要研究方向为隧道与地下工程。
更新日期/Last Update: 2021-08-05