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Comprehensive formwork and scaffolding systems at Riyadh Metro

Aug 31, 2017
Riyadh is a Saudi Arabian city that – like any big city in the world – is home to a high density of vehicular traffic. An underground rail network was built in order to reduce traffic and improve both access to and communication between the city center, the airport, and the financial district.

The project was designed with six lines stretching a total of 109 miles, intended to serve the needs of this city with a current population of 5.7 million, which is expected to grow to 8.3 million by 2030. 

Retaining walls were built in three different phases using single-sided formwork systems made of standard material.

An exterior shoring system was designed for the construction of the foundation and first phase of the inclined walls. Assemblies were built specifically so that they could be lifted and transported by crane, thus greatly reducing the time necessary for project completion.  

The second phase employed a formwork system built from the ground up, composed of single-sided EUC Trusses and 16.74 foot panels. 

For the final phase, the single-sided climbing formwork CR-250 was used, offering both strength and ample platform space to create an utterly safe working environment.

The tunnel walls, 19.7 feet in height, were built using MEGAFORM crane-set formwork. Assembly and disassembly were extremely efficient thanks to its large panels with few accessories.

ULMA, in alliance with ATTIEH, our official partner in Saudi Arabia, provided the comprehensive formwork and scaffolding systems for this important projects.