吉首大学学报(自然科学版) ›› 2026, Vol. 47 ›› Issue (2): 54-61.DOI: 10.13438/j.cnki.jdzk.2026.02.008

• 建筑工程 • 上一篇    下一篇

强震区软弱围岩矩形隧道减震层不同布置范围的减震效果

梁为进,崔光耀,宁茂权   

  1. (1.北方工业大学土木工程学院,北京 100144;2.中铁第四勘察设计院集团有限公司,湖北 武汉 430064;3.海峡(福建)交通工程设计有限公司,福建 福州 350004)
  • 出版日期:2026-03-25 发布日期:2026-04-24
  • 作者简介:梁为进(2002—),男,安徽淮南人,北方工业大学土木工程学院硕士研究生,主要从事隧道与地下空间研究.
  • 基金资助:
    国家自然科学基金资助项目(52178378)

Damping Effect of Different Damping Layer Arrangements for Rectangular Tunnels with Weak Surrounding Rocks in Strong Seismic Areas

LIANG Weijin,CUI Guangyao,NING Maoquan   

  1. (1.School of Civil Engineering,North China University of Technology,Beijing 100144,China;2.China Railway Siyuan Survey and Design Group Co.,Ltd,Wuhan 430064,Hubei China;3.Haixia Traffic Engineering Design Co.,Ltd,Fuzhou 350004,Fujian China)
  • Online:2026-03-25 Published:2026-04-24

摘要:为了提升软弱围岩地层的浅埋矩形隧道在受强震影响时的安全性,利用有限元软件ABAQUS对某工程矩形隧道减震层不同布置范围的减震效果进行了对比分析.结果表明,与无减震层的工况1相比,增加管片结构后,工况2(垫层减震层)、工况3(半包减震层)、工况4(全包减震层)的减震效果均明显提升,工况3的减震效果最优;与工况1相比,工况3的最大主应力峰值、最小主应力峰值、最大剪应力、最大横向位移、最大竖向位移、最小安全系数减震效果分别提升了8.893%,13.433%,5.698%,15.190%,41.860%,27.590%.因此,在抗震设计中,建议该工程优先采用半包减震层的构造方案.

关键词: 矩形隧道, 强震区, 软弱围岩, 减震层, 减震效果

Abstract: In order to improve the safety of shallow buried rectangular tunnels with weak surrounding rocks when subjected to strong earthquakes,a comparative analysis of the seismic damping effect of rectangular tunnels with different damping layer arrangements is carried out using the finite element software ABAQUS.The results show that compared with the condition without damping layer (condition 1),after adding the segmental structure,the damping effects of condition 2 (cushion damping layer),condition 3 (semi-covered damping layer),and condition 4 (full-covered damping layer) were significantly improved,and condition 3 had the best damping effect.Compared with condition 1,the maximum principal stress peak,minimum principal stress peak,maximum shear stress,maximum lateral displacement,maximum vertical displacement,and minimum safety factor of  the damping effect in condition 3 increased by 8.893%,13.433%,5.698%,15.190%,41.860%,and 27.590% respectively.In seismic design,a semi-covered seismic damping layer construction scheme is recommended.

Key words: rectangular tunnels, strong seismic areas, weak surrounding rock, damping layer, damping effect

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