摘要
为研究黄黏土地区隧道支护结构与围岩接触面的力学特性,对接触面进行了基本力学试验和三维数值模拟,归纳分析接触面受力变形发展规律,在此基础上提出了黄黏土地区隧道支护结构与围岩土体接触面的损伤力学本构模型,该本构模型较为切合实际,可为黄黏土地区类似工程提供理论支撑。
In order to study the mechanical properties of the interface between tunnel support structure and surrounding rock in yellow clay area,the basic mechanical test and three-dimensional numerical simulation of the contact surface were carried out,and the development law of the stress and deformation of the contact surface was summarized and analyzed.On this basis,the damage mechanical constitutive model of the contact surface between tunnel support structure and surrounding rock soil in yellow clay area was proposed.The constitutive model is practical and can provide theoretical support for similar projects in yellow clay area.
作者
赵江涛
Zhao Jiangtao(Zhengzhou Road and Bridge Construction Investment Group,Zhengzhou 450000,Henan,China)
出处
《岩土工程技术》
2022年第4期267-270,共4页
Geotechnical Engineering Technique
关键词
黄黏土
接触面
接触面试验
本构模型
yellow clay
contact surface
contact surface experiment
constitutive model
