Fourth Precinct Demolition Works consists of the first phase of a Stadium Construction for FIFA 2022 World Cup.
EMW Scope of Works includes the demolition of old Qatar Petroleum area. Site includes concrete buildings, steel structures and abandoned oil storage facilities. EMW scope includes as well the disconnection and diversion of relevant underground utilities including electrical, telecommunication, potable and sewage water networks.
Asbestos Removal, site levelling along with Concrete & Asphalt crushing will enable EMW to handover a site ready for the next phase of construction.
Specific structural stability assessment of the structures by EMW demolition experts is mandatory before the start of the demolition activity to analyze the adequate attack strategy in order to maximize the production of the equipment while minimizing the risks of uncontrolled collapse of the structure.
Selection of the adequate equipment and the relevant attachment from EMW wide fleet is crucial to perform a safe operation while reducing the wear and tear on the machines hence reducing operating down time.
The site was heavily contaminated due to fewer historical environmental controls back when the site was still operational. Asbestos, Hydrocarbons and heavy metals were encountered on the site, whereas potential risks of radioactive and biohazard waste was identified in the some tool and equipment storage areas as well as the medical centers.
EMW environmental department was engaged from the start of the works to survey the possible contaminants on site, samples were being collected and sent to an approved third party laboratory to confirm the presence of the contamination, and if needed, handling the contamination was being done as per submitted and approved procedures, taking into consideration the health and safety of EMW and subcontractor’s teams.
Presence of asbestos on site was confirmed by a full intrusive type-3 survey for all the site. 2 types of Asbestos containing material was encountered, friable and non-friable ACM. Friable ACM required pressurized enclosures, sampling and testing after the completion of the removal works to test the presence of any suspended asbestos fibers in the air.
All areas had to be cleared from asbestos before the start of the stripping and the demolition phase.
EMW’s scope included as well the disconnection and relocation of existing utilities. EMW had to liaise with the Qatari national governmental authorities Kahramaa, Ashghal and Ooredoo in order to disconnect existing live utilities. Electrical substations, high voltage cables, sewerage pump stations and manholes as well as live telecommunication network cables were disconnected and de-commissioned as per the project’s requirement.
Demolition activities generate different types of waste material arising from thestripping of the buildings, the demolition of the structure and the
utilities that serve the purpose of the building.
Waste can be categorized as furniture, wood, steel, glass, aluminum, plastic, paper, carpets, insulation material, medical waste, copper pipes, electrical cables and much more depending on the nature of the building.
In total 70,000 of m3 of crushed and re-cycled concrete and asphalt was stockpiled on site for later use during the main package. EMW deployed impact crushers and mobile screens to produce final re-cycled products as per the project requirements.
Crusher was equipped with hydraulic magnet conveyor belt to separate the steel rebars from the concrete. A built in dust suppression system on the crusher was installed to reduce the propagation of dust towards neighboring sensitive receptive stakeholders.
Waste generally is delivered to landfills at designated waste management facilities. In order to reduce the environmental impact of the project, GEM deployed numerous waste skips and engaged a dedicated waste segregation team to separate the different types of waste and maximize the recycling process hence reducing the volumes delivered to landfills. Furniture was as well donated to charity organizations and schools for children as part of encouraging the development of local communities.