吉首大学学报（自然科学版）2026，Vol.47Issue(2)：54-61,8.DOI:10.13438/j.cnki.jdzk.2026.02.008
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
Damping Effect of Different Damping Layer Arrangements for Rectangular Tunnels with Weak Surrounding Rocks in Strong Seismic Areas
摘要
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 rec-tangular tunnels with different damping layer arrangements is carried out using the finite element soft-ware 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),con-dition 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 princi-pal 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.关键词
矩形隧道/强震区/软弱围岩/减震层/减震效果Key words
rectangular tunnels/strong seismic areas/weak surrounding rock/damping layer/damping effect分类
交通工程引用本文复制引用
梁为进,崔光耀,宁茂权..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[J].吉首大学学报（自然科学版）,2026,47(2):54-61,8.基金项目
国家自然科学基金资助项目(52178378) （52178378）
