Project Design of Sponge City in Industrial Zone: A Case Study of a Concrete Mixing Plant in Chongqing

Currently, sponge city construction includes a wide range of civil buildings, factories, and roads as the concept progresses in design. However, during the design process, some projects with low green space rate, high pavement load, large roof area, and complex runoff water quality conditions often appear, which cannot achieve the expected results using conventional design methods. This article introduces the project design of a concrete mixing plant in an industrial zone with large particle size particles and high SS concentration runoff characteristics. Based on the analysis of the current situation of the project, summarize the main characteristics of the design, and introduce the design plan of this special industrial zone. The SWMM model was used to simulate and analyse the design scheme and verify the rationality of the sponge city design. To provide reference for sponge city construction projects with comparable runoff characteristics.