Formulation of ultimate bearing capacity for strip foundations based on the Meyerhof theory and unsaturated soil mechanics

被引：13
|
作者：
Zhang, Changguang [1 ,2 ]
Yan, Qing [1 ]
Zhao, Junhai [1 ]
Wang, Jintai [3 ]
机构：
[1] Changan Univ, Sch Civil Engn, Xian 710061, Peoples R China
[2] Chengdu Univ Technol, Stake Key Lab Geohazard Prevet & Geoenvironm Prot, Chengdu 610059, Peoples R China
[3] Geosyntec Consultants, 9211 Arboretum Pkwy,Suite 200, Richmond, VA USA
来源：
COMPUTERS AND GEOTECHNICS | 2020年 / 126卷
基金：
中国国家自然科学基金;
关键词：
Strip foundations; Unsaturated soils; Ultimate bearing capacity; The Meyerhof theory; Matric suction; SHEAR-STRENGTH; RETAINING WALL; SETTLEMENT; FOOTINGS; STRESS;
D O I：
10.1016/j.compgeo.2020.103734
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
This study presents an ultimate bearing capacity formulation of strip foundations in unsaturated soils within the framework of the Meyerhof theory. The flowchart of calculation steps for this formulation is provided with a trial method according to suction distributions. The validity of the formulation obtained is demonstrated by two available theoretical solutions and experimental data. Comparisons are also performed between the results from the Meyerhof and the Terzaghi theories. It is found that the effects of matric suction and its distribution are significant; strength nonlinearity generates three types of the ultimate bearing capacity variation with respect to matric suction.
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页数：11
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