Response of Skirted Foundations Resting on Dry Medium Dense Sand

Abstract

Experimental model tests were carried out to study the response of skirted foundation resting on dry sand. The experiments were performed in a large soil container (1000 1000 mm in cross section and 800 mm in height). Skirts with three different lengths (L) varied from 0.5D to 1.5D was attached to the edge of shallow circular foundations having three different diameters (D=60, 90 and 120 mm). Different parameters have been studied; these parameters involve skirt length, foundation size and skirt conditions. Skirts with open end and closed end were used. The relative density was kept constant and equals to 60%. The case of foundation without skirt (L=0) was initially tested and set as a reference for comparison purpose. From the results of experimental tests, it was found that the skirt modifies the load-settlement behaviour, increasing the load carrying capacity and reducing the foundation settlement. The results also indicate that load carrying capacity of skirted foundation increases with increase skirt length as well as foundation size. The results show that using skirt with closed end brought a considerable increase in load carrying capacity than that of open end.

Improving Bearing Capacity by Skirted Foundation: A Review Study

“…(Dawarci et al, 2014) presented the experimental research of a multi-edges footing resting on a sandy soil without structural skirts. (Haider & Mekkiyah, 2018) reported consequences based on a lab study of the monotonic loading response of the skirted shallow foundations on sand with different skirt depth 0.5D to 1.5D and different circular diameters. The results showed that the bearing capacity of foundation increases with increase depth skirted as well as diameter of foundation.…”

Evaluation of the Performance of the Circular Foundation Surrounded by the Diaphragm Wall

“…Soil confinement technique is very active and it has been used by many researchers such as (Watson and Randolph, 1997); (Byrne et al, 2002); (Al-Aghbari and Mohamedzein, 2004); (EL Wakil,2013); (Tripathy, 2013); (Dawarci et al, 2014); (Al-Aghbari and Mohamedzein, 2018); (Haider and Mekkiyah, 2018), where studies have investigated the use of coiled foundation on the sand. Mahmood.et al (2019) The effect of gypsum soil confinement on bearing capacity is studied.…”