Vertical spatial optimization design of drainage water treatment facilities in coastal cities under storm surge environment.

Coastal cities, as the key areas for the transition of land and sea, tend to be more affected and damaged when facing the marine natural disasters dominated by storm surges. In view of this, under the guidance of the design concept, this study defines and screens the key elements of vertical space in coastal cities from the macro, meso and micro levels. Meanwhile, the optimization index items of key elements of vertical space under various scales are set, and the vertical space system of coastal cities is constructed from the perspective of storm surge disaster prevention, which makes the work content and objects of vertical space design optimization clearer. Through practical application, detailed optimization strategies and methods are proposed for the vertical space system of coastal cities, aiming at providing more optimization possibilities for the vertical space of coastal cities, improving the regional storm surge prevention and disaster adaptation ability, and maintaining the healthy and sustainable development of the region. The simulation results show that the maximum road water depth caused by rainfall in 10 and 50 y is reduced by 2.31 cm after the spatial optimization strategy is adopted. The maximum depth of road waterlogged water decreased by 3.35 cm due to rainfall during the 100-y recurrence period. This scheme has good application value. [ABSTRACT FROM AUTHOR]