MECCA HARAM WASTEWATER SYSTEM, SAUDI ARABIA
The project is part of the new sewage tunnel system developed for Mecca. The tunnel will be bored with TBM having 2.80 internal diameter and its approximate length is 4.7 km. The system length has been divided 2 lines as 3394 and 1323 m. (Line I and Line II). In scope of the project; there are 6 manholes and 3 TBM escape shafts be built on the tunnel system bored by TMB and structural preparation of structural design and design services for a starting shaft.