非饱和土抗剪强度研究现状

土工基础 ›› 2023, Vol. 37 ›› Issue (2): 275-278.

非饱和土抗剪强度研究现状

贾灵慈，刘震，李开强，郭胤徵

（华北水利水电大学地球科学与工程学院，郑州 450046

收稿日期:2022-10-13 修回日期:2022-10-24 出版日期:2023-04-30 发布日期:2023-04-20
作者简介:贾灵慈（1997-），女，硕士研究生，研究方向为岩土工程。

State of the Art Review of the Shear Strength of Unsaturated Soils

JIA Lingci, LIU Zhen, LI Kaiqiang， GUO Yinzheng

(School of Earth Science and Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046)

Received:2022-10-13 Revised:2022-10-24 Online:2023-04-30 Published:2023-04-20

摘要/Abstract

摘要： 土体的抗剪强度是工程实践中对土工构筑物进行设计和分析的重要理论基础。对非饱和土而言，因其内部结构较饱和土来说更为复杂，抗剪强度则更加难以确定。为了确定非饱和土抗剪强度，许多学者从非饱和土的内部结构，表达形式以及如何测量等方面进行研究。其中，土-水特征曲线对其意义重大，土体在经历干湿循环后会对土-水特征曲线产生明显影响，是研究非饱和土抗剪强度的重要根据。为加深对非饱和土抗剪强度方面的理解，对非饱和土抗剪强度研究现有的进展进行了阐述，总结了近几年的抗剪强度公式，并对以后的研究提供了方向。

关键词: 非饱和土, 土-水特征曲线, 抗剪强度

Abstract: The shear strength of soils is an important theoretical basis for the design and analysis of geo-structures in the engineering practice. For the unsaturated soil, because its microstructure is more complex than that of the saturated soil, the shear strength is more difficult to determine. To determine the shear strength of the unsaturated soil, many scholars have studied the microstructure, the expression form and the measurement of unsaturated soils. Among them, the soil-water characteristic curve is of the great significance, and the soil will have obvious influence on the soil-water characteristic curve after the dry and wet cycle, which is an important basis for studying the shear strength of unsaturated soil. To deepen the understanding of the shear strength of the unsaturated soil, the current progress of the shear strength research of the unsaturated soil was described by the reviewing many literatures, and the shear strength formula in recent years was summarized, and the direction for future research was suggested.

Key words: Unsaturated Soils, SoilWater Characteristic Curve, Shear Strength

中图分类号:

TU432

贾灵慈, 刘震, 李开强, 郭胤徵. 非饱和土抗剪强度研究现状[J]. 土工基础, 2023, 37(2): 275-278.

JIA Lingci, LIU Zhen, LI Kaiqiang, GUO Yinzheng. State of the Art Review of the Shear Strength of Unsaturated Soils[J]. Soil Engineering and Foundation, 2023, 37(2): 275-278.