TY - JOUR ID - 2610 TI - Numerical Analysis of Square and Circular Skirted Footings Placed on Sand using PLAXIS 3D Software JO - Journal of Mining and Environment JA - JME LA - en SN - 2251-8592 AU - Juneja, Gaurav AU - Sharma, Ravi Kumar AD - National Institute of technology Hamirpur, Himachal Pradesh, India AD - Department of Civil Engineering, National Institute of Technology, Hamirpur, Himachal Pradesh, India Y1 - 2022 PY - 2022 VL - 13 IS - 4 SP - 1049 EP - 1066 KW - Numerical Analysis KW - PLAXIS KW - skirted footing KW - Mohr-coulomb KW - bearing capacity DO - 10.22044/jme.2022.12458.2261 N2 - This paper presents the numerical analysis of square and circular skirted footings placed on different sands using the PLAXIS 3D software. The numerical analysis is done using the Mohr-coulomb (M-C) yield criteria. The size of the footings is considered as 100 mm for both the square and circular footings. The three different friction angles (Ø) of sand 36˚, 40˚, and 42˚ are used to study the effect of sand compactness. The depth of the skirt (h) varies from 0B to 2B (B is the width of the footing). The surface roughness between skirt-sand and footing-sand is considered partially rough and completely rough. The interface friction factor (δ) for a partially rough and fully rough interface is taken as 2/3Ø and Ø. All the tests are conducted by applying a prescribed displacement (s/B) of 20% of the footing size. The results obtained from the present work reveal that the inclusion of structural skirts with the footings appreciably increases the bearing capacity and reduces the settlement of the footing by increasing the skirt depth. The results obtained show that the skirted footing is found to be more effective in loose sand compared to dense sand in increasing the bearing capacity. The numerical analysis results are also verified with the experimental results available in the literature and multiple regression model. This work shows that the prediction of the accuracy of the results is quite good with the experimental results and the generated regression model. UR - https://jme.shahroodut.ac.ir/article_2610.html L1 - https://jme.shahroodut.ac.ir/article_2610_405e7e9c59e1e93bdbd4827ac947bf2c.pdf ER -