Reno Mattress Plus

M/s. Abu Dhabi General Services Company PJSC (Musanada), on behalf of the M/s. Abu Dhabi Housing Authority (ADHA) appointed M/s. CORE Engineering Consultancy LLC to do detailed design of External Storm and Irrigation Connection to Jebel Hafeet and Ain Al Faydah Developments. Accordingly, the designer proposed concept design options of stormwater discharge ponds strategy to the relevant project stakeholders, which mainly involved the construction of two massive ponds within Ain Al Fayda & Jabel Hafeet locations, near to the ongoing Emerati Housing Development project. The size of the pond is significant due to the large volume of storm water expected from a 1 in 25 years storm as well as from ground water recharge. The proposed pond design consisted two zones, namely the ‘deep zone’ for ground water recharge and storm water flow collection while the ‘shallow zone’ is meant for accommodating the stormwater overflow from the former area. The pond lining solution has a pivotal role of allowing ground water recharge into the pool without allowing pore water pressure development within the backfill side. For this reason, the designer’s lining solution was a 30cm thick loose stone rip rap along the banks of the pond. However, due to problems with loose rip rap lining in previous projects, the end-client advised to change the pond lining with gabion mattress.

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The embankment slopes within the Abu Dhabi airport premises have been experiencing severe erosion, primarily due to the steepness of the slopes and the use of loose fill material. The client was looking for a permanent slope protection solution that would be both robust and flexible enough to withstand these challenges. The solution needed to be capable of accommodating minor slope deformations that could occur over time due to environmental factors, such as wind, rainfall, and the natural settling of the fill material. In addition to providing effective erosion control, the solution had to be suitable for the steep slope conditions, which added to the complexity of the project. Space constraints at the site further limited the available options, requiring a design that could be implemented within a confined area. Traditional methods, which typically require more space, were not feasible. Therefore, the client sought an innovative, long-lasting solution that would not only prevent further erosion but also offer the flexibility to adapt to potential minor shifts in the slope without compromising its protective capabilities.

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As part of Hatta comprehensive development plan launched by His Highness Sheikh Mohammed Bin Rashid Al Maktoum, Ruler of Dubai; the Dubai Municipality is required to develop Leem Pond to sustain water in all seasons which will enhance its scenic value to boost tourism in Hatta. It is intended to feed the Leem pond from ground water and compensate for evaporation losses through periodic pumping. The project would involve the typical civil works like excavation, filling, concreting, ducts etc but the main scope of the contractor would be lining and bank stabilization of Leem pond. Since the overall object of the project is to improve the Hatta Wadi tourism, the required scheme of protection and lining must be environmentally friendly and natural such that the new development works will easily integrate with the existing natural surroundings.

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