Ultimate bearing capacity of vertically loaded strip footings on sand overlying clay

被引:13
|
作者
Zheng, Gang [1 ,2 ,3 ]
Wang, Enyu [1 ,2 ]
Zhao, Jiapeng [1 ,2 ]
Zhou, Haizuo [1 ,2 ,3 ]
Nie, Dongqing [4 ]
机构
[1] Tianjin Univ, Sch Civil Engn, Tianjin 300072, Peoples R China
[2] Tianjin Univ, Key Lab Coast Civil Struct Safety, Minist Educ, Tianjin 300072, Peoples R China
[3] Tianjin Univ, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China
[4] Shanghai Municipal Engn Design Inst Grp Co Ltd, Shanghai 200092, Peoples R China
基金
中国国家自然科学基金;
关键词
Bearing capacity; Regression-based approach; Sand overlying clay; Strip footings; SPUDCAN PENETRATION; LAYER; FOUNDATIONS; MECHANISMS;
D O I
10.1016/j.compgeo.2019.103151
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Conventional methods toward addressing the bearing capacity of strip footings on sand overlying clay may yield unreliable solutions. In this technical note, the bearing capacity of footings on sand overlying clay is evaluated using discontinuity layout optimization (DLO). A set of design charts that can be directly applied to the classical bearing capacity formulation is developed. Subsequently, a simplified regression-based approach, relevant to a wide range of geometric and strength parameters, is proposed. The model uncertainty for the proposed method is characterized. Validations are performed with the results of centrifuge tests and previously proposed analytical solutions.
引用
收藏
页数:6
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