基于ABAQUS的核电厂取水盾构隧道三维动力弹塑性分析  

3D dynamic elastoplastic analysis of water intake shield tunnel of nuclear power plant based on ABAQUS

作　　者：钱博 王建山 QIAN Bo;WANG Jianshan(School of Architectural Engineering,Dalian University,Dalian 116622,China)

机构地区：[1]大连大学建筑工程学院,辽宁大连116622

出　　处：《四川建材》2025年第3期121-123,共3页Sichuan Building Materials

基　　金：国家自然科学基金重点项目-滨海核电厂海域取水工程适应性研究-安全级取水管涵抗震适应性研究(51738010)。

摘　　要：以三门核电1、2号机组取水盾构隧道为工程背景,应用ABAQUS有限元软件开展典型取水盾构隧道结构的三维动力弹塑性及损伤分析工作,考虑不同地基形式以及不同峰值加速度的影响,分别从变形、强度、延性等角度,研究盾构结构地震损伤破坏的局部化形成、破坏扩展、结构失效的过程及其规律,分析其在强震作用下的破坏失效模式,结果表明,变形最大值出现在圆环上部,最大应力主要分布在管片结构连接处,淤泥质黏土地基条件下结构破坏更加严重。研究成果可为类似取水管涵设计提供参考依据。Taking the water intake shield tunnel of Sanmen Nuclear Power No.1 and No.2 as the engineering background,this paper uses ABAQUS finite element software to carry out the three-dimensional dynamic elastoplastic and damage analysis of typical water intake shield tunnel structure,considering the influence of different foundation forms and different peak accelerations,and studying the process and law of localized formation,failure expansion and structural failure of shield structure seismic damage from the perspectives of deformation,strength and ductility,and analyzing its failure mode under strong earthquake.The results indicate that the maximum deformation occurs at the upper part of the circular ring,and the maximum stress is mainly distributed at the connection of the pipe structure.The structural damage is more severe under the conditions of silty clay foundation.The research results can provide a reference basis for similar water intake culvert design.

关 键 词：盾构隧道 ABAQUS 弹塑性分析 动力损伤 

分 类 号：U455.43[建筑科学—桥梁与隧道工程]