Piled-raft foundations have gained substantial attention as a practical solution for mitigating the challenges posed by complex soil conditions and heavy structural loads. This research gives a comprehensive parametric analysis of the behaviour and applicability of piled-raft foundations with varied geometric parameters. The prime objective of this study is to identify the effect of key parameters on the load versus settlement response of piled-raft foundations, such as raft thickness, pile length, pile diameter, and pile number, by considering the effects of complex interaction among pile, raft and surrounding cohesive soil, and overlapped stress zones and contact stresses between the raft and the underlying soil in order to better understand their design and application. This study investigates how a PLAXIS 3D model on the connected piled-raft foundation (CPRF) system behaves. Additionally, it will be beneficial to our study of how these elements govern the effectiveness of CPRF in cohesive soil. The results reveal that increasing pile spacing, length, number, and thickness all enhance the load versus settlement response.