Riyadh Metro Multilevel System
Riyadh System Developed with IrriRT
Riyadh Metro System
An irrigation system in the metro station
Project
In particular, the project was divided into the following areas:
- the green areas and palm trees located immediately outside the station and at an altitude equal to street level
- the flowerbeds placed on terraces that descend together with the stairs between the zero level and that at approximately -5 m
- the internal garden on the lowest floor of the underground station at an altitude of approximately -30 m
The first two areas are powered by two pumping systems located at different depths where the relevant water treatment systems are inserted. A series of hydraulic checks were carried out necessary to evaluate the achievement of acceptable levels of uniformity, efficiency and quality of the irrigation service.
External Area
For the external area, a drip and rain system (with pop-up) is planned, fed in a single shift and equipped with pressure reducers to protect the parts of the system with lower nominal pressures. For the recommended pump, the operating point and the acceptability of the performance obtained have been identified.
The consultancy carefully evaluated the size and nominal characteristics of the pipes for the pressures and pressure drops involved. Particular attention was paid to the large central flowerbed irrigated with a dense network of sub-irrigation drip lines.
Further details of the project
Garden
For the internal garden at an altitude of -30 m, an irrigation system has been planned divided into two distinct shifts:
- 1st shift serving vertical gardens and pots with palm trees (with pop-up and drip system)
- 2nd shift serving drip irrigated flowerbeds.
Power Supply and Materials
Various parts are equipped with pressure reducers based on the operating pressure and nominal operating conditions of the devices. Different power supply scenarios from the pump located on the lower levels were evaluated until a branch panel connected with 3 rises towards the garden level was defined in order to obtain a functional distribution and a path of the pipes with minimal impact for crossing the structure and intermediate floors. Also in this case the operating point and the acceptability of the pump performance were calculated.
Project developed with IrriRT
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