RAPID REPAIR STRUCTURE FOR SECOND-LEVEL OR HIGHER SOIL SLOPE SHALLOW LANDSLIDE, AND CONSTRUCTION METHOD THEREFOR

摘要

A rapid repair structure for a second-level or higher soil slope shallow landslide, and a construction method therefor. The repair structure is: steps are dug out of a collapsed portion of a landslide,a plurality of layers of backfill bagged soil are filled on the steps, a geogrid being laid out at the bottom of each layer of backfill bagged soil, and a reserved part of the geogrid being wrapped back along the backfill bagged soil above the geogrid and stretched to a required tensile strength. The geogrid is fixed to the top surface of the backfill bagged soil by means of a U-shaped nail to form an inverted wrap, the invertedly wrapped geogrid and an adjacent upper geogrid are fixedly connected by means of a U-shaped nail and are both fixed to the top surfaces of the corresponding backfilled bagged soil, and a plurality of steel reinforcement bars are implanted at the bottom of a reinforcement body formed by the backfill bagged soil and the geogrid. The repair structure of the present invention achieves a supporting and protecting effect, while also achieving energy dissipation of expansion deformation generated by soil in the slope by means of deformation of the structure itself. The invention features a good repairing effect, simple and convenient construction, low technical requirements for personnel, a short construction period, few machines, low risks, low costs, and environmental friendliness.