A large-capacity storage pipeline rainwater storage and drainage system and storage and drainage method

Abstract

The invention discloses a rainwater storage and drainage system and method for a large-capacity water storage pipeline, which is characterized in that it comprises: a plurality of storage and drainage inspection wells (1), and each storage and drainage inspection well (1) communicates with a building riser (1a) And / or communicate with the rainwater outlet (10) through the rainwater outlet pipe (1b), which is provided with an initial rain collection chamber (12) and a rear rain collection chamber (11); a plurality of initial rain storage pipes (2), and A plurality of storage and drainage inspection wells (1) are arranged at intervals, and each initial rain water storage pipe (2) is connected with the initial rain collection chamber (12) adjacent to the storage and drainage inspection well (1); multiple large-capacity after-rain water storage The pipeline (3), with a slope of 0-0.15‰, is arranged at intervals with multiple storage and drainage inspection wells (1), and each rear rainwater storage pipeline (3) is connected to the rear rain collection chamber of the adjacent storage and drainage inspection well (1). (11) Connected; among them, the most downstream first rain water storage pipe (2) is connected with the sewage system (4) through the first rain retreat system; the most downstream after rain water storage pipe (3) is discharged through the after rain overflow The system communicates with the external municipal storm sewer drainage system (5).

Description

technical field [0001] The invention relates to the technical fields of urban drainage and environmental protection, in particular to a rainwater storage and drainage system and method for a large-capacity water storage pipeline. Background technique [0002] Rainwater drainage in urban residential areas, public construction areas, and municipal facilities construction areas is generally borne by internal rainwater pipes. It is necessary to determine the layout, pipe diameter and elevation of the rainwater pipes in the community according to the pipe diameter and the elevation of the access point of the municipal rainwater pipes under the external road. However, the current rainwater pipes under the external roads often have small diameters and insufficient elevations. In this way, there are several solutions to solve the drainage difficulties. One is that the bottom of the residential rainwater pipes is connected to the external rainwater pipes. When the water level of the...

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Problems solved by technology

However, the current rainwater pipes under the external roads often have small diameters and insufficient elevations. In this way, there are several solutions to solve the drainage difficulties. One is that the bottom of the residential rainwater pipes is connected to the external rainwater pipes. When the water level of the external rainwater pipeline rises, it will be difficult to drain the rainwater out of the community, and if it is serious, there will be accumulated water; the second is to construct the externally planned rainwater pipeline according to the plan, but it often involves long lines and many demolition, which is difficult to complete in the near future ; The third is to build a rainwater storage tank in the building area to store rainwater, but due to the restrictions of underground structures such as underground garages, municipal pipelines and septic tanks in the building area, the location of the storage tank is difficult to arrange; The height of the inner ground filling is to make the internal rainwater pipes of the community connect to the external rainwater pipes according to the normal slope, but the amount of filling is large and the investment is high, so it is not easy to realize in the near future

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