Prediction of internal friction angle of Q2-Q3 mixed loess as affected by weight ratio based on modified adhesion theory

Author:

HE Jianhui1ORCID,Zheng Jianguo2,Jiang Feng3

Affiliation:

1. Xi’an University of Architecture and Technology

2. China Jikan Research Institute of Engineering Investigations and Design, Co., Ltd.

3. Shaanxi Traffic Engineering Consulting Co., Ltd

Abstract

Abstract Due to geography and construction technique considerations, Q2-Q3 mixed loess has been used for some loess high-fill slopes in Yan'an, China. The predicting formula for weight ratio and internal friction angle of Q2-Q3 mixed loess with optimal water content is essential for determining the stability of these slopes. This study assumed that the Q2-Q3 mixed loess was a homogeneous, single-species equivalent loess to simplify the derivation of the equation without impacting the research outcomes. This study utilized the stress synthesis law to present a hypothetical stress formula. Two limit cases were considered to determine the formula parameters. Then, the study derived the sliding conditions of equivalent loess soil particles according to the law of bound water. Finally, the study established a formula for predicting the internal friction angle of Q2-Q3 mixed loess based on the definition of the friction factor and the relationship between the water content and the bound water thickness. The results indicate that the predicted internal friction angle of Q2-Q3 mixed loess has minor relative errors, which confirms the accuracy of the formulas developed in this paper. Additionally, as the weight ratio increased, the internal friction angle of the Q2-Q3 mixed loess increased.

Publisher

Research Square Platform LLC

Reference26 articles.

1. Chen ZY, Zhou JX, Wang HJ (1994) Soil Mechanics. Tsinghua University Press, Beijing, Beijing, China,32–33.

2. Effects of dry density and water content on compressibility and shear strength of loess;Guo YX;Geomechanics and Engineering,2021

3. Kong DF (1992), Material composition of soil. Geological Publishing Press, Beijing Beijing, China,67–68.

4. Effect of conglomeration gradation on loess shear strength with different water content;Kong DQ;Science Progress,2021

5. Li L, Ye W, Bai Y, Wu Y (2022) Macroscopic Mechanical Properties and Microscopic Bonding Mechanisms of Glass Fiber-Modified Loess. Advances in Materials Science and Engineering, 2022. https://doi.org/10.1155/2022/6442543

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3