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One-way plastic geogrid support structure and slope engineering

2025-05-28

Solution Design: Multi-layer grids are laid along the slope of the crack surface, with a layer spacing of 0.2m, a strength of ≥100kN/m, and both ends are anchored to the stable formation ≥2m. In conjunction with the drainage blind ditch, reduce the adverse impact of pore water pressure on the grid.

Support structure and slope engineering
1. Reinforced earth retaining wall
Design principle: The grille acts as a stretching rib to form a composite with the fill to resist the pressure on the soil side behind the wall.
Core parameters:
Tension length: active area length + anchoring length, anchoring section ≥0.7 times the wall height, and ≥5m.
Spacing and number of layers:
When the wall height is ≤6m, the vertical spacing is 0.5m, and the single-layer tensile strength is ≥50kN/m;
When the wall height is >6m, the spacing is 0.3-0.4m and the intensity is ≥80kN/m.
Pulling test: The friction coefficient between the grille and the filler needs to be determined through field test (usually ≥0.35).
2. Ecological protection of rock slopes
Application scenario: crushed rock surface vegetation to consolidate soil and prevent rockfall.
Design points:
is fixed to the slope by an anchor (pitch 1.5m×1.5m), forming a reinforced mesh pad.
The upper layer is covered with guest soil (thickness ≥15cm), and the overall stability is enhanced in combination with the plant root system.
3. Landslide treatment
Applicable conditions: shallow landslide (slide thickness <3m) or landslide prevention.
Solution Design:
Multi-layer grids are laid along the slope of the crack surface, with a layer spacing of 0.2m, a strength of ≥100kN/m, and both ends are anchored to the stable formation ≥2m.
In conjunction with the drainage blind ditch, reduce the adverse impact of pore water pressure on the grid.

Key words:

The role of steel-plastic geogrid

Generate one-way plastic geogrid engineering application scenarios and design

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2025-05-28

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Lap and fix: The overlap length is ≥20cm and is fixed with U-shaped nails or special connectors to avoid dislocation of the grille. Backfill materials: The particle size of the upper and lower layers of the grille is ≤3cm to avoid sharp particles from punctured by the grille. Construction machinery: Avoid heavy machinery to directly roll the grille, and light equipment (such as vibration rollers) are used for initial rolling.

2025-05-28

Tai'an Jiuzhou Geotechnical Materials Co., Ltd

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