Design of underground hyper loop system using siphon principle to prevent flood in metro cities.

Due to congested construction of buildings in metro cities, the stagnation of water always occurs due to heavy rainfall. When Rainfall exceeds its limit, the water flow increases and become flood as a natural disaster due to unoccupied space and tight construction. In Smart cities, the massive buildings are made in water stagnant area where there is no way of water to flow or store in a particular area. Due to this water flow becomes flood which creates a major problem for household people in metro cities. To overcome this problem we create a partially vacuumed hyper loop pipes underground in smart cities to suck the rainwater from the ground which carries water from ground surface area or water collector tank through pressure differential to the outer City area. Evacuated water will be stored in a large tank as waste water management and used for future needs. A large tank is used to collect the rain water from the ground surface and then a slight sloping pipe design is made to flow the water by gravitational force to other end of the tank using siphon principle. A slight decrease in pressure from atmospheric pressure creates partial vacuum in pipe which is used to suck the water from high pressure level (stagnant ground water tank) to the other end of low pressure tank by siphon effect. So using this design a large amount of water can be transported through partial vacuum hyper loop pipe for several distances inside the ground by maintaining the pressure level of the pipe which can save people and their households in metro cities from flood and stagnation of water. [ABSTRACT FROM AUTHOR]