ANTI-CLOGGING DRAINAGE STRUCTURE FOR HIGH RETAINING WALL AND CONSTRUCTION METHOD THEREFOR

The present invention provides an anti-clogging drainage structure for a high retaining wall and a construction method. The drainage structure comprises a high retaining wall; several drain pipes are pre-buried in the high retaining wall; and the drain pipes are communicated with the two sides of the high retaining wall. A filter assembly is provided at a water inlet of each drain pipe; one end of the filter assembly is communicated with the outside of the high retaining wall; and the other end of the filter assembly is communicated with the drain pipe. A water-blocking layer is provided below the lowermost filter assembly. The filter assembly comprises filter cloth, an inverse filter device, and an isolation net sequentially arranged along a water flow direction; the inverse filter device is inserted into the drain pipe; and the isolation net is fixedly connected to the inverse filter device. According to the present invention, the structure is simple and stable, the investment of labors, materials and machi