The invention discloses an
arid region roundabout spiral
water storage and drainage structure and a construction method thereof. The structure comprises a
water storage well located in the center of a roundabout, openings distributed in the circumferential direction of the outer ring of a standing stone, and spiral drainage ditches, radial drainage ditches, an integrated pump
station,
drip irrigation branch pipes and nozzles which are arranged on the roundabout, the head ends of the spiral drainage ditches communicating with the opening located at the lowest position of the longitudinal section of a loop, the
tail ends of the spiral drainage ditches spirally extend inwards at a certain gradient to communicate with the
water storage well, the head ends of the radial drainage ditches communicate with the other corresponding openings, the
tail ends of the radial drainage ditches extend in the radial direction at a certain gradient to communicate with the spiral drainage ditches, the spiral drainage ditches and the radial drainage ditches are filled with broken stones, permeable
geotextile is laid on the top faces, filter screens are arranged at the head ends, the filter screens are arranged at the
tail ends of the spiral drainage ditches, and the inlet end and the outlet end of the integrated pump
station are connected with the water storage well, the
drip irrigation branch pipes and the nozzles respectively. According to the
arid region roundabout spiral water storage and drainage structure and the construction method thereof, the problem of
road surface water accumulation after seasonal heavy rainfall can be prevented, and secondary utilization of rainfall can be realized.