Analysis of the Ultimate Bearing Capacity Law of the Shallow Foundation on the Soil-Rock Mixed Slope Based on the Finite Element Limit Method.
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| Title: | Analysis of the Ultimate Bearing Capacity Law of the Shallow Foundation on the Soil-Rock Mixed Slope Based on the Finite Element Limit Method. |
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| Authors: | Zeng, Yongqing1 yqzeng@hnist.edu.cn, Hu, Weidong2 11996498@hnist.edu.cn, Li, Bin1 12007030@hnist.edu.cn, Liu, Guohuang3 2360363839@qq.com, Tan, Xinyi3 3775478171@qq.com, Liu, Xiaohong2 11991491@hnist.edu.cn, Luo, Hua1 12015024@hnist.edu.cn, Gan, Wenju1 475645836@qq.com |
| Source: | Engineering Letters. Jul2026, Vol. 34 Issue 7, p3010-3024. 15p. |
| Subjects: | Bearing capacity of soils, Shallow foundations, Building foundations, Numerical analysis, Geotechnical engineering, Slopes (Soil mechanics), Finite element method |
| Abstract: | Soil-rock mixed slopes are widely distributed in China; the calculation of foundation ultimate bearing capacity and slope failure mode of soil-rock mixed slopes is different from that of homogeneous slopes. This study systematically investigates the influence of slope geometric and soil-rock material parameters on the ultimate bearing capacity of shallow foundations on soil-rock mixed slopes using the finite element limit analysis method. The numerical model of the soil slope and the soil-rock mixed slope is established. The limit load was directly solved through optimization algorithms; the failure behavior and ultimate bearing capacity of soil slope and soil-rock mixed slope are investigated. The single-factor analysis method is used to study the effects of slope geometric and soil-rock material parameters on the ultimate bearing capacity of shallow foundations on soil-rock mixed slopes. Eleven influencing factors are chosen as follows: slope height H, slope gradient α, foundation width B, foundation burial depth H1, load position ratio λ, soil cohesion c1, soil internal friction angle ϕ1, block stone diameter d, block stone percentage β, block stone cohesion c2, and block stone internal friction angle ϕ2. Results revealed that the influence law of geometric parameters (slope height H, slope angle α, foundation width B, foundation burial depth H1, and load position ratio λ) and material parameters (soil cohesion c1, soil internal friction angle ϕ1, block stone diameter d, block stone percentage β, block stone cohesion c2, and block stone internal friction angle ϕ2) on the foundation's ultimate bearing capacity. The study identified ultimate bearing capacity under different parameter combinations, providing a theoretical basis for designing shallow foundations on soil-rock mixed slopes. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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