信阳师范学院学报（自然科学版）2024，Vol.37Issue(4)：485-490,6.DOI:10.3969/j.issn.1003-0972.2024.04.010
荆门膨胀土的Hvorslev真强度参数
Hvorslev Strength Parameters of Jingmen Expansive Soils
摘要
Abstract
Compared with Mohr-Coulomb failure theory,Hvorslev's theory can reflect the effect of void ratio,and has the same set of parameters for overconsolidated and normally consolidated soils.However,there are few works on evaluating the Hvorslev strength parameters.Based on the test results of direct shear tests and one-dimensional compression tests of intact,compacted and reconstituted specimens of Jingmen yellowish-brown expansive soil and brown expansive soil,the Hvorslev strength parameters of the two soils were calibrated.The results showed that:(1)The effective true friction angles of Jingmen yellowish-brown expansive soil and brown expansive soil were 14.5° and 24.0°,respectively,and the effective base friction angles were 2.3° and 1.5°,respectively.(3)Hvorslev's theory could predict the shear strength of intact,compacted and reconstituted specimens of Jingmen expansive soil by the same set of Hvorslev strength parameters with high accuracy.(3)Compared with Hvorslev's theory,Mohr-Coulomb failure theory needed adopt different strength parameters for different types of specimens,different percent compaction,or different overconsolidation ratio.关键词
Mohr-Coulomb理论/Hvorslev理论/荆门膨胀土/真内摩擦角/基础内摩擦角/等效固结压力Key words
Mohr-Coulomb failure theory/Hvorslev's theory/Jingmen expansive soil/true friction angle/base friction angle/equivalent consolidation pressure分类
建筑与水利引用本文复制引用
马全国,田延冰,赵垒,周葆春..荆门膨胀土的Hvorslev真强度参数[J].信阳师范学院学报（自然科学版）,2024,37(4):485-490,6.基金项目
国家自然科学基金项目(11772290,51009118) （11772290,51009118）
