Shaking table test and numerical simulation of tunnel-soil-bridge pile interaction system

被引：0
|
作者：
Lu S.-S. [1 ,2 ]
Zhao D.-X. [1 ]
Bai J.-K. [1 ,2 ]
Liu S.-D. [1 ]
Yin H. [1 ]
机构：
[1] School of Civil Engineering, Liaoning Technical University, Fuxin
[2] Liaoning Key Laboratory of Mine Subsidence Disaster Prevention and Control, Fuxin
来源：
Zhendong Gongcheng Xuebao/Journal of Vibration Engineering | 2024年 / 37卷 / 01期
关键词：
amplification factor; dynamic response; numerical simulation; shaking table test; structure-soil structure interaction（SSSI）;
D O I：
10.16385/j.cnki.issn.1004-4523.2024.01.017
中图分类号：
学科分类号：
摘要：
Based on the actual project in Dalian，this paper studies the dynamic interaction（SSSI）of the double tunnel sand bridge pile system under earthquake through shaking table test，obtains the dynamic response law of structure and site，and compares it with ABAQUS numerical simulation. The Kelvin constitutive model subroutine is introduced into the numerical model，and the equivalent linear method is used to deal with the nonlinear problem of sand in the calculation process. The experimental results are compared with the numerical model to verify the reliability of the numerical simulation. On this basis，eight working conditions are designed，and the interaction law between structures in the system is studied through comparative analysis. The results show that the tunnel will amplify the peak acceleration of the bridge pile and adjacent tunnel，but the bridge pile will weaken the peak acceleration of the side tunnel；the existence of the tunnel and bridge pile will increase each other's section shear force and bending moment. The main affected areas are concentrated in the upper and lower arches of the tunnel and the interface between the pile bottom of the bridge pile and the pile-soil. © 2024 Nanjing University of Aeronautics an Astronautics. All rights reserved.
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收藏
页码：168 / 181
页数：13
相关论文
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