Client: MR. NABIL SAAD
The project in Mar Takla – Hazmieh consists of a 9 stories concrete building. The lot is surrounded by residential buildings from two sides and by road on the upper side level and an adjacent deep cut on the lower side level. This deep cut proved to be vertical. The soil investigation in this lot shows a top loose fill (~7m), then a gravelly silts layer (~ 5m), then the bedrock. In lieu of the deep adjacent cut and the deep layer of backfill material, Int’l IGM recommended placing the structure on deep foundations system after the removal of as much as possible of the fill material (IE: Foundation on grade). Due to the lack of accessibility it was decided to reinforce the footings with 6” micropiles. The length of the micropiles (6” in diameter reinforced with 4” API steel tubes) executed under the bearing columns varied from 6m to 12m length in order to cover three criteria: 1-Load on each footing. 2-3m length as a minimum below the 45o effect line of the deep cut of the adjacent lot. 3-The soil/Micropiles friction assumption.