• APARNA SUNIL MISHRA
• S.W. THAKARE

In case of offshore structures, a hybrid foundation system is found to be helpful in protecting a structure against strong shaking. These foundations have to distribute the load of the structure over large bearing area so as to bring intensity of loading within the safe bearing capacity of the soil lying underneath to resist moment and horizontal loads due to wind and wave actions. Compared to the traditional monopile foundation, hybrid monopile foundations may be more suitable and stable under severe environmental loads and for particular site conditions. In this paper, the results of analysis of conventional monopile foundation and Hybrid monopile foundation in layered soil are presented and compared. Numerical analyses were carried out using MIDAS GTS NX software with selected parameters of the foundation system and by varying eccentricity of resultant horizontal load. The hybrid monopile foundation, composed of steel wheel at sea bed level, increases the gross bearing area at the top of the monopile and improve the lateral load carrying capacity. As a result, lateral load carrying capacity for Hybrid monopile foundation is more than the conventional monopile foundation.

Offshore wind turbine, Hybrid Monopile foundation, Steel Wheel, Ultimate Lateral load capacity, Numerical analysis, MIDAS GTS NX 3D

"PERFORMANCE OF HYBRID MONOPILE FOUNDATION FOR OFFSHORE STRUCTURES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 9, page no.c604-c612, September-2021, Available :http://www.jetir.org/papers/JETIR2109281.pdf

"PERFORMANCE OF HYBRID MONOPILE FOUNDATION FOR OFFSHORE STRUCTURES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 9, page no. ppc604-c612, September-2021, Available at : http://www.jetir.org/papers/JETIR2109281.pdf