The project is located in the southern part of Doha in the vicinity of Wakrah and Wukair municipalities and is part of the sewage networks of these locations. The project comprises the design and construction of a 13.3 km long TBM sewage tunnel in double-shell construction with 4500 mm inner diameter and up to 61 m depth, 8 access shafts and drop structures, which are all part of the Wakrah - Wukair and Industrial Area sewage network.
On 5 and 28 February 2022 the two tunnel boring machines with a boring diameter of 5,885 mm were successfully started. The two TBMs will bore the 13.3 km long tunnel expected until May 2023 and establish the tunnel’s outer shell by means of segments. Since the start of construction already all temporary shotcrete shafts with a maximum diameter of more than 20m and a depth of up to 63m have been excavated. In the shotcrete shafts the erection of the permanent shaft structures has already begun and the construction measures shall be concluded in early summer of 2024. The design is carried out using the Building Information Modelling (BIM) method.
Location. Doha, Qatar
Client. PORR-HBK-MIDMAC Joint Venture
Services VCE. static and structural design