Studies and supervision of Karun River Shore conservation project in downstream of Ahwaz (Choneybeh area) with a length of 1100 m

Client: Interior Ministry of Iran, Khuzestan Governorate
Project Location: in the scope of Ahvaz city - Khuzestan Province

Project Description: 

Before the implementation of this protective plan, the meander of Karun River, in the Choneybe region, was advance annually in about 30 meters to the coastal road.
Purpose:
This project is to prevent the erosion of the beach and advance of Karun River towards road and regions Residential and flood control with return period of 200 years in regions Residential and agricultural land in Ahwaz.
River Protection through3-bromine and combined construction Several options including: quilt-Concrete (Incomat), Chinese gem protection (RIP-RAP) and green space creation were implemented.
The quilt of the concrete duvet by a diver in the longitudinal was about 17 meters in the river and with the stone bags within the river was temporarily.15 cm in concrete duvet construction was carried out using concrete pump.
To stabilize the Shore, especially when it is run on a massive river, such as Karun, and with issues such as rising water level due to floods, bearish and vertical slope of the beach has its own problems, and only with specific technical arrangements and the use of equipment and machinery, combined with speed The upper run can ensure the success of the operation at optimal level. In this regard, the operation of excavation and embankment in order to create three and two stable gradients in different levels by creating appropriate ramps during the project was performed.
The operation of the treming and immediately installed the "Nonwonen" filter of the type B-500, which was previously sewn and prepared on its wide-range filter by divers in a longitudinal of about 17 meters in the river, and with a rock bag in the river was temporarily.Procurement, purchase and installation of the concrete quilt (Incomat Flex) of type 20-112 and filter of hate-Nonowoven B500 by Iran Bana Company was the exclusive representative of the German Hukkur company.The concrete placement of 15 cm thickness in concrete duvet was carried out using concrete pump and from within the river toward dryness by the relevant group.
After concrete injection in concrete duvet, 1 (water edge) to the end of the two work of stone and rubble (Rip-Rap) was performed for coating and finishing of the substrate and continued for protection of the night with the second to the top of the vegetation cover, and to reach the top of the dike to the beach. Each 50 meters of access stairs were also implemented.