| عنوان | مقدار |
|---|---|
| Client | Tehran Province Gas Company |
| Advisor | Harazrah Consulting Engineers Group |
| Contract Period | 400 days |
| Location | Near Mamalu Dam, towards Shahid Babaei Expressway Interchange |
| Status | Finished |
Description
The 48-inch gas transmission pipeline construction project was aimed at ensuring and increasing sustainable supply of gas to Tehran Province, especially northern and northeastern Tehran, and Lavasanat. Tehran Province Gas Company decided to pursue the project as it could highly contribute to the Province’s development, promote residents’ welfare and well-being, help achieve a proper supply-demand balance, and address the natural gas shortage across the Province. With the launch of Tehran’s 5th Gas Transmission Pipeline, Northeastern Tehran, Tehran municipal districts 1, 3, 4, 7, and 8, and the cities of Bumahen, Roudehen, Damavand, and Firuzkuh are now covered by the national gas supply network. The 48-inch pipeline starts from near Parchin, crosses Mamalu Dam, Bagh-e Komesh Village, Jajrud, Cement Factory, and Khojir National Park, and finally reaches the 29th km on Shahid Babaei Expressway. In December 2008, the gas transmission pipeline was inaugurated by Gholam-Hossein Nozari, the Iranian Oil Minister, NIGC CEO, Tehran Province Gas Company CEO, and Tehran Governor-General, and became operational. With a gas transmission capacity of 500,000 m3 per hour, the pipeline is located at the end of Tehran’s 5th Gas Transmission Pipeline and has expanded the Province’s gas inflow capacity by 50%.
Scope of Work
- ROW clearing operations in the rugged and mountainous terrains of Mamalu Dam and Khojir National Park
- Diversion and crossing operations (Damavand and Jajrud rivers)
- Non-explosive and controlled demolition operations (due to the pipeline running through the habitats of protected species in Khojir National park)
- Excavation and trenching operations
- Construction and mechanical operations of CGS and LBV stations
- Transportation, stringing, and welding operations, 48-inch pipeline, 35,000 m
- Coating and hydrostatic testing, and commissioning, 48-inch gas pipeline
Key Statistics
- Excavation and ROW clearing operations in the rugged mountainous terrains, 4,000,000 m3
- ROW clearing, 35,000 m
- Trenching in the mountainous terrains, 35,000 m
- Stringing and welding, 48-inch gas transmission pipeline, 35,000 m
- Hydrostatic testing, 48-inch gas transmission pipeline, 35,000 m
- Polyethylene coating, 133,000 m2
- Construction and mechanical operations of CGS stations
- Construction and mechanical operations of 5 LBV stations
- Gas injection and commissioning, 48-inch gas transmission pipeline, 35,000 m
