Numerical eva‎luation of bearing capacity of foundations located on soils with the regular and irregular cavities in 3D

7/3/2023 12:00:00 AM

Underground cavities, as one of the phenomena in nature, can cause a reduction in the bearing capacity of the foundation or its instability. Cavities usually have three-dimensional shapes; however, due to the complexity of the 3D modeling and the time-consuming analysis procedure, research is limited to the plane strain analysis. In this research, 3D cavities and the parameters affecting them are investigated. The cover depth ratio, foundation width ratio, overburden factor, void eccentricity ratio, foundation shape, and cavity shape are discussed in this research. The cavity shape in this study was formed using a novel method based on inverse discrete Fourier transform. These parameters are classified into independent and non-independent parameters, and each has been examined separately under the influence of other parameters. Also, the failure mechanisms and the effect of each of these parameters on the failure mechanism have been studied in detail.

حفره , ظرفيت باربري , مدل‌سازي 3-بعدي , رفتار زهكشي نشده , مكانيزم گسيختگي

Cavities , Bearing capacity , 3D modeling , Undrained clay , failure mechanism

Sajad Khosravi

Mehran Karimpour Fard