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Rainwater retention structure for underground, and its construction method having planting environment and managing rainwater runoff
Rainwater retention structure for underground, and its construction method having planting environment and managing rainwater runoff
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机译：地下雨水保留结构及其施工方法具有种植环境和管理雨水径流
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摘要
The underground rainwater storage structure having a planting-based function and a downtown rain runoff management function according to the present invention includes a vegetation part formed on one side of a road surface and planting plants therein, and the vegetation part and the lower part of the road surface, A storage structure for storing rainwater flowing in from the vegetation and the road surface, a separation sheet formed on the upper portion of the storage structure to filter soil contained in rainwater flowing into the storage structure, and a lower edge of one side of the road surface inclined downward a water collecting well having a water collecting space with an open upper side therein, collecting rainwater flowing in from the road surface, a vertical inlet pipe formed on one side of the road surface through which rainwater from the road surface flows, and the vertical inlet pipe A perforated distribution pipe formed at one end and having a plurality of distribution holes for distributing rainwater flowing in from the vertical inlet pipe to the storage structure, and extending in the horizontal direction from one end of the perforated distribution pipe, overflowing from the storage structure A first drain pipe for draining rainwater into the collecting well, a second drain pipe formed under the storage structure for draining rainwater flowing from the storage structure into the ground, and a road surface formed on one side, one end of which is the second drain pipe 2 It is characterized in that it includes an inspection pipe that is formed in communication with the drain pipe. In addition, the method for constructing an underground rainwater storage structure having a planting-based function and a downtown rain runoff management function according to the present invention comprises a basic step of digging a target road surface to a certain width and depth, and compacting the floor surface; A storage structure installation step of installing a storage structure for storing rainwater flowing from the road surface on the upper side, and a separation sheet installation step of installing a separation sheet for filtering soil contained in rainwater flowing into the storage structure on the upper part of the storage structure And, a water collecting space with an open upper side is provided inside, and a collecting well installation step of installing a collecting well that collects rainwater flowing from the road surface is installed under one edge of a road surface inclined downward, and vertical inflow through which rainwater from the road surface flows in A pipe, a perforated distribution pipe formed at one end of the vertical inlet pipe and provided with a plurality of distribution holes for distributing rainwater flowing in from the vertical inlet pipe to the storage structure, and a perforated distribution pipe extending from one end of the perforated distribution pipe in the horizontal direction, A first pipe installation step of installing a first drain pipe on one side of the road surface for draining the rainwater overflowing from the storage structure into the collecting well, is formed under the storage structure and drains the rainwater flowing from the storage structure underground A second pipe installation step of installing a second drain pipe, a check pipe having one end communicating with the second drain pipe, forming on one side of the road surface, and a backfill step of backfilling the upper and side parts of the storage structure to finish characterized in that
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