Project application product: one-way plastic geogrid construction
Project scale: 250000
Project location:
Project introduction: Construction method of one-way plastic geogrid I. When it is used for subgrade and pavement, excavate the subgrade bed, set sand cushion (height difference is not more than 10cm), roll it into a platform, and lay the geogrid. The longitudinal axial direction should be consistent with the main stress direction, and the longitudinal lap should be 15-20cm, and the transverse lap should be 10cm. The lap should be bound with plastic tape and placed on the laid geogrid, Fix the geogrid on the ground with U-nails every 1.5-2m. The geogrid laid shall be backfilled with soil in time. The number of layers of geogrid laid shall be subject to the technical requirements. 2、 When it is used for reinforced earth retaining wall, the construction distribution is as follows: 1. Set the foundation and construct according to the designed wall system. When precast reinforced concrete panel is selected, it is generally 12-15cm thick and supported on the precast concrete foundation. The width is not more than 30cm, the thickness is not less than 20cm, and the buried depth is not less than 60cm to prevent the frost heaving of the foundation; 2. The wall foundation shall be leveled, excavated and leveled according to the design requirements. Soft soil shall be compacted or replaced, and compacted to the required density, which shall be slightly beyond the wall; 3. When laying reinforcement, the main strength direction of reinforcement shall be perpendicular to the wall and fixed with pins; 4. The wall shall be filled with machinery. The distance between the wheel and the reinforcement shall be at least 15cm, and the thickness of a layer of soil after compaction shall be about 15-20cm; 5. During wall construction, the wall shall be wrapped with geotextile to prevent leakage of fill.
