Experimental study on bearing capacity of shell strip footings near geotextile-reinforced earth slopes

• Published in: Journal of Central South University Vol. 28; no. 8; pp. 2527 - 2543
• Main Authors: Ali Ghaffari, Seyed, Sattari, Elham, Hamidi, Amir, Tavakoli Mehrjardi, Gholamhosein, Farshi Homayoun Rooz, Abtin
• Format: Journal Article
• Language: English
• Published: Changsha Central South University 01.08.2021; Springer Nature B.V
• Subjects: Apex angle; Bearing capacity; Earth reinforcement; Empirical equations; Engineering; Footings; Geotechnical fabrics; Load tests; Metallic Materials; Scale effect; Strip; Superstructures; Urbanization; ultimate bearing capacity; 壳体条形基础; 土工织物增强; 极限承载力; apex angle; 边坡; shell strip footing; slope; 数值模拟; geotextile-reinforced; numerical simulation; 顶角
• ISSN: 2095-2899; 2227-5223
• DOI: 10.1007/s11771-021-4784-9

From a financial point of view, urbanization frequently enforces the clients to construct superstructures near the slopes, giving rise to increasing the risk of building instability. By conducting a series of small-scale plate load tests, this work aims to investigate the effects of installing geotextile reinforcement layers in sandy slope and reducing the apex angle of triangular shell strip footings. The results show considerable effect of using geotextile-reinforced layers and decreasing the apex angle on the ultimate bearing capacity of shell foundations. With increasing foundation distance from the slope, the adverse effect of the slope is reduced. However, as the distance decreases, the effect of reinforcement and apex angle is increased. For practical applications, empirical equations are also presented for determining the ultimate bearing capacity of the footings and scale effect as well. Finally, 3D numerical simulations are executed and compared with the experimental results.