含气土工程特性研究现状综述及展望

doi:10.3973/j.issn.2096-4498.2021.04.003

隧道建设（中英文） ›› 2021, Vol. 41 ›› Issue (4): 537-553.DOI: 10.3973/j.issn.2096-4498.2021.04.003

含气土工程特性研究现状综述及展望

丁智^{1, 2}，郑海洋¹，冯丛烈^{1, 2}，张霄²

（1. 绍兴文理学院土木工程学院，浙江绍兴 312000； 2. 浙大城市学院土木工程系，浙江杭州 310015）

出版日期:2021-04-20 发布日期:2021-04-30
作者简介:丁智(1983—)，男，安徽铜陵人，2005年毕业于合肥工业大学，水利水电工程专业，博士，教授，主要从事轨道交通施工及运营对周边环境影响的研究工作。E-mail: dingz@zucc.edu.cn。
基金资助:
浙江省自然科学基金(LHZ20E080001)

Overview on Research of Engineering Characteristics of Gassy Soil and Prospects

DING Zhi^{1, 2}, ZHENG Haiyang¹, FENG Conglie^1,
2, ZHANG Xiao²

(1. School of Civil Engineering, Shaoxing University, Shaoxing 312000, Zhejiang, China; 
2. Department of Civil Engineering, Zhejiang University City College, Hangzhou 310015, Zhejiang, China)

Online:2021-04-20 Published:2021-04-30

摘要/Abstract

摘要： 基于工程实际，阐述有控放气和无控放气条件下含气土变形特征及应力路径对含气土的工程特性的影响，并总结出对应的工程措施。针对含气土工程特性机制认识不清的难题，介绍含气土分类及结构特征、力学特征、变形特征等工程特性问题的发展动态与存在的问题。综合研究指出：目前缺少能适用多种复杂应力路径的抗剪强度公式；本构模型缺乏针对性的理论基础；沉降模型考虑的因素较少。总结含气土工程特性现有研究成果，提出未来含气土工程特性研究方向的相关建议：含气土的基本物理力学特性研究；各种施工应力路径下含气土变形机制研究；列车循环荷载作用下含气土变形机制研究；波浪荷载作用下海洋含气土的液化与地质灾害研究。

关键词: 含气土, 工程特性, 抗剪强度, 本构模型, 沉降模型

Abstract: The deformation characteristics of gassy soil and the influence of the stress path on the engineering characteristics of gassy soil under controlled and uncontrolled deflation conditions are described, and the corresponding engineering measures are summarized. The development trends and existing problems of gassy soil classification and structural characteristics, mechanical characteristics, deformation characteristics, and other engineering characteristics are introduced. The results of comprehensive research indicate the lack of shear strength formulas that can be applied to a variety of complex stress paths. Further, the constitutive model lacks a pertinent theoretical basis, and the settlement model considers fewer factors. Furthermore, the existing research results regarding the engineering characteristics of gassy soil are summarized, and relevant suggestions for future research on the engineering characteristics of gassy soil are proposed. The following features are examined in this study: basic physicmechanical properties of gassy soil, deformation mechanism of gassy soil under various construction stress paths, deformation mechanism of gassy soil under train moving loads, and liquefaction and geological hazards of marine gassy soil under wave load.

Key words: gassy soil, engineering characteristics, shear strength, constitutive model, settlement model

中图分类号:

U 45

丁智, 郑海洋, 冯丛烈, 张霄. 含气土工程特性研究现状综述及展望[J]. 隧道建设, 2021, 41(4): 537-553.

DING Zhi, ZHENG Haiyang, FENG Conglie, ZHANG Xiao.

Overview on Research of Engineering Characteristics of Gassy Soil and Prospects [J]. Tunnel Construction, 2021, 41(4): 537-553.

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含气土工程特性研究现状综述及展望

Overview on Research of Engineering Characteristics of Gassy Soil and Prospects

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