Municipal road drainage method

Abstract

The invention discloses a municipal road drainage method. One part of rainwater runoff is drained in a grille well through a coarse screen, particulate matter is further purified in the grille well through a fine screen, sequentially flows into a rubble filter, an activated carbon pool and an MBR membrane bioreactor, and finally flows into a regulation and storage unit; the other part of rainwateris filtered through a green belt and then flows into the regulation and storage unit through a steel perforated top plate; when exceeding the reserved capacity of the regulation and storage unit, rainwater is discharged into a municipal rainwater discharge pipe network or a landscape water body or an artificial lake through an overflow port formed in the top of the regulation and storage unit. Accordingly, the ground runoff volume is reduced, rainwater regulation and storage and ecological purification are achieved, by means of design of the regulation and storage unit and greenbelt plantingmatrix, the regulation and storage and purification capacity is expanded; the rainwater regulation and storage capacity is expanded, and the method is an effective means of sponge type urban construction.

Description

technical field [0001] The invention relates to the municipal field, in particular to a municipal road drainage method. Background technique [0002] With the acceleration of urbanization, the area of ​​built-up areas continues to expand, resulting in a substantial increase in impermeable areas, resulting in an increase in the runoff coefficient, an earlier flood peak, and an increase in flood volume under the same rainfall conditions, which pose a huge threat to urban drainage and waterlogging prevention and river flood discharge. The pressure also threatens the safety of the city. [0003] In view of the rapid development and construction of the city, the traditional road drainage technology only discharges rainwater through the rainwater outlet, and the drainage capacity of the pipeline is increasingly insufficient, which leads to a series of urban waterlogging phenomena, and then the municipal management department adopts the standard of increasing the size of the draina...

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Problems solved by technology

[0004] Aiming at the problem of waterlogging and waterlogging in modern cities, municipal management departments have been unable to effectively solve the problem by adopting measures such as increasing the size standard of drainage pipes, increasing the number of drainage pipes and drainage channels, and building new drainage pumping stations. The development needs of building a sponge city are contrary

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