The East Corridor project in Qatar was successfully completed using formwork and shoring from RMD Kwikform.
For China Harbour Engineering Design and Construction (CHEDC), who took on the construction of the $612.5 million East Corridor project in Qatar, safety and formwork design were key to delivering the project. Comprising four interchanges, including the tallest bridge in Qatar, the project has used tens of thousands of tonnes of formwork and shoring from RMD Kwikform to create six bridge structures for the five-lane 11 km long bypass on the outskirts of Doha.
Safe and flexible solution
To support the construction of the largest of the 16 bridges, reaching up to a height of 33 m and a length of 840 m, the site team required a robust safe formwork solution for the project that was both flexible and capable of withstanding the environmental and concrete loading pressures. The team recognised the importance of using system formwork and shoring to support safe erection onsite, with training and regular toolbox talks carried out throughout the project. This supported the health and safety of the huge number of workers onsite.
Supporting the project´s construction
With the varying heights and cambers on the interchange sections, RMD Kwikform utilised its Rapidshor formwork system to create birdcage-interlocked structures to support the construction of the project. Rapidshor shoring was also integrated with steel Superslim Soldiers and GTX timber beams to form the shape of the interchange structures. As part of the formwork design, RMD Kwikform also developed safe access and egress solutions to further support the site teams and shift patterns, in addition to the design of special steel pier formwork.
From the contractor´s eye
Commenting on the project and the importance of safety, Eamonn Toland, Health Safety & Environment Manager, CHEDC, shares, ´There are four major interchanges on this project, which are critical to its success. From a health and safety perspective, in order to create these structures, we had to manage a lot of heavy lifting and working at height tasks, using strict safety controls. This is why we engaged with the RMD Kwikform team early on in the project, as the standard of their equipment and processes delivered confidence to the team.´
From a technical perspective, the engineering solution needed to accommodate the clover leaf shape of the interchanges; ´This required a great deal of integration between the site team and the RMD Kwikform engineering staff,´ shares Toland. He adds, ´From a design perspective, we also had to consider the positioning of tower cranes onsite and the integration of the phased lifting process.´
He further shares, ´Equally, we spent some time with the RMD Kwikform team designing the access towers for the structures, landing platforms and rest areas for the site. When it came to training and support, we had onsite supervisory support from RMD Kwikform who trained the erection teams and were responsible for signing-off the completed formwork arrangement, working closely with our safety and structural engineers.´
Throughout the project, RMD Kwikform also understood and supported CHEDC´s fast-track field action safety talks, helping to highlight safe working and how to work in changing conditions, looking ahead to identifying associated hazards. Toland adds, ´With all of this support, our team developed confidence in the RMD Kwikform equipment, engineering and service, which really helped in delivering the project.´
With a large amount of equipment used onsite, in addition to site supervision and engineering design, RMD Kwikform provided the CHEDC team with logistical support to meet the challenging timeframe of the project, as Keith Palmer, Business Development Manager, RMD Kwikform, explains, ´With so much equipment required for the project, we had to co-ordinate delivery to site to match the sequencing of the erection phases. This involved a large amount of truck movements and organisation from our local yard with some equipment also sourced from other parts of the RMD Kwikform global businesses.
When it came to the special steel pier formwork, Palmer further adds, ´We were able to design, fabricate and supply these units to the site in less than 12 weeks, keeping the project on programme.´
Once completed, the project will help relieve congestion from the capital of Doha, providing the much needed relief to the inner city road network.