Abstract
For the calculation of the ultimate bearing capacity of the overlying hard crust foundation, based on the theory of Meerhoff and Hanna’s impact and shear failure, the sealing effect and stress diffusion effect of the overlying hard crust foundation were considered, and the formula for calculating the ultimate bearing capacity of the overlying hard crust double-layer foundation was derived and verified by an actual engineering example. The maximum error between the measured value and the calculated value of Hansen’s weighted average method, diffusion angle method, and Meerhoff and Hanna’s method was 74.2%, 31.5%, and 15.2% respectively, while the error was less than 6% by using the improved algorithm. It shows that it is necessary to consider the sealing effect and stress diffusion effect of the overlying hard crust foundation when calculating the ultimate bearing capacity of the foundation. At the same time, this method can be used as a reference for calculating the ultimate bearing capacity of the overlying hard crust foundation.
Publication Date
3-17-2023
DOI
10.14048/j.issn.1671-2579.2023.01.005
First Page
31
Last Page
35
Submission Date
March 2025
Recommended Citation
Guirong, BIAN; Fuyou, LI; Xiaotong, QIAN; and Ke, XIE
(2023)
"Study on ultimate bearing capacity characteristics of overlying shell foundation,"
Journal of China & Foreign Highway: Vol. 43:
Iss.
1, Article 5.
DOI: 10.14048/j.issn.1671-2579.2023.01.005
Available at:
https://zwgl1980.csust.edu.cn/journal/vol43/iss1/5
Included in
Construction Engineering and Management Commons, Other Civil and Environmental Engineering Commons, Statistical Methodology Commons, Structural Materials Commons, Transportation Engineering Commons