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Application of trench drain for sponge city
May 30, 2018

To build a sponge city, we must first reverse our ideas. In traditional urban construction, hardened roads are everywhere. Every heavy rain, mainly relying on "dark" facilities such as canals and pumping stations for drainage, the "rapid elimination" and "end concentration" control are the main planning and design concepts, which often cause rain, drought and drastic changes. According to the “Sponge City Construction Technical Guide”, urban construction will emphasize the priority use of “green” measures such as grass-planting trenches, water seepage bricks, rainwater gardens, and sunken green spaces to organize drainage, and control them with “slow release and slow release” and “source dispersion”. As the main planning and design concept, it not only avoided floods but also effectively collected rainwater.

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