1. Micropiles, Post-Tensioned Raft, Micropiled Post-Tensioned Raft

The micropiles are considered as vibration-free deep foundation elements that are used extensively for underpinning, strengthening, upgrading, slope stability, offshore, sensitive structures, and inaccessible site applications and as well as in the structural foundation system. The raft foundation is usually adopted to overcome the differential settlement issues. The post-tensioning of the raft allows increasing its stiffness and reduce the thickness and the steel reinforcement required for the raft. However, when found on soft or compressible soil, the raft will experience an undesirable behavior. Therefore, and before heading to the conventional piling system, the micropiled raft system is proposed. Depends on the project and site’s geology, the micropiles will act either as a settlement reducer or a capacity upgrader under the raft. Unlike the conventional piling system, the imposed loads are shared between the micropiles and raft. Such a system has proven its effectiveness in many projects such as warehouses, schools, institutes, hospitals, towers, residential buildings, showrooms, villas, housing projects, malls, car parks, bridges, offshore structures, etc. Nevertheless, this requires a comprehensive evaluation and understanding of the soil-raft-micropile interactions. Our skilled and highly experienced engineers carry out these analysis and evaluationS. The advanced and high-end analyses allow us to install the micropiles at their optimum locations as needed, resulting in a value engineering solution. Both, the post-tension raft and micropiled post-tensioned raft, were successfully completed by Strong Force-MGC for different project in Bahrain, on a design-and-build basis.