| 水下长大沉管隧道抗震性能及减震措施研究进展 |
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| 引用本文： | 甘长江,赵杰.水下长大沉管隧道抗震性能及减震措施研究进展[J].防灾减灾学报,2021,37(1):73-80. |
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| 作者姓名： | 甘长江 赵杰 |
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| 作者单位： | 大连大学建筑工程学院,辽宁大连 116622 |
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| 基金项目： | 国家自然科学基金面上项目;辽宁省自然科学基金指导计划;国家自然科学基金重点项目 |
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| 摘 要： | 沉管隧道抗震性能研究是目前地下工程防灾减灾领域重要的研究方向之一,同时也是该领域亟需解决的难题。在总结了隧道震害特点的基础上,全面系统地阐述了原型观测、模型试验、理论分析三种沉管隧道地震响应计算的分析方法及最新研究进展。基于这些方法,进一步介绍了质点-弹簧模型、梁-弹簧模型、多体动力学模型三种水下长大沉管隧道纵向抗震简化模型,并分析模型对应的特点及力学原理,最后简要地总结了沉管隧道的减震措施。一定程度上可以反映出国内外沉管隧道地震响应分析以及减震控制研究目前的发展阶段,并通过这些最新的研究成果提出了进一步的展望。
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| 关 键 词： | 沉管隧道 地震响应 纵向抗震 |
Research Progress on Seismic Performance of Long Immersed Tunnel Underwater |
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| GAN Chang-jiang,ZHAO Jie.Research Progress on Seismic Performance of Long Immersed Tunnel Underwater[J].Seismological Research of Northeast China,2021,37(1):73-80. |
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| Authors: | GAN Chang-jiang ZHAO Jie |
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| Institution: | (College of Civil Engineering and Architecture,Dalian University,Liaoning Dalian 116622,China) |
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| Abstract: | The research on the seismic performance of immersed tunnel is one of the important research directions in the field of disaster prevention and mitigation of underground engineering,which is also a difficult problem to be solved in this field.On the basis of summarizing the characteristics of tunnel seismic damage,three calculation and analysis methods of seismic response of immersed tunnel,including prototype observation,model test and theoretical analysis,and the latest research progress were expoun-ded comprehensively and systematically in this paper.Based on the methods,three simplified longitudinal seismic models of underwater long immersed tunnel,including mass spring model,beam spring model and multi-body dynamic model were further expounded.And the corresponding characteristics and mech-anical principles of the model were analyzed.Finally,the shock absorption measures of immersed tunnel were summarized briefly.To some extent,this paper can reflect the current development stage of seismic response analysis and shock absorption control of immersed tube tunnels at home and abroad.And further prospects are proposed based on these latest research results. |
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| Keywords: | immersed tunnel seismic response longitudinal earthquake resistance |
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