Client: ALFRED AND JACK MATTA
The Project in Achrafieh consists of a 14 storey concrete tower with 4 basements. The lot is surrounded by residential buildings on 2 sides and roads on the others. The challenge in this project was to submit a flexible design: Either Concrete Bracing or Anchors or Concrete Bracing / Anchors together. It was a request from the Client to gain extra time while negotiating with neighbors to receive any needed permission without jeopardizing the construction schedule. Int’l IGM submitted the flexible design that fits the client requirements, and the project was launched as planned. The top soil layer (about 2m) consists of clay & silty sand material underlain by a deep layer of soft marl (~ 14m). The excavation needed for the tower was about 13m. Int’l IGM proposed and is constructing an anchor/pile system on the building & road sides to retain the excavated side and minimize any movement of the adjacent structure or infrastructures. The piles were 40cm & 60cm in diameter with 1m to 2.4m spacing c/c respectively and one to two rows of active anchors tensioned against a concrete waler beam.
