Selection guides
Key parameters and quick judgement tables
| Field conditions | Initial election suggestions | It must be verified |
|---|---|---|
| The slope slows down to about 1:5, and the membrane is exposed. | The HDPE film | The air is loaded, the trenches are fixed, the tunnels are repaired |
| 1:51:3 and a protective layer | Photographic or single-sided | The membrane/cloth, membrane/soil interface is cut straight |
| The waterfall is located at about 1:3 or above the slope of the earth. | Single or double-sided | Safety coefficients, drainage, classification of the soil |
| High-water change or weak base | Special design | The pressure of the hole decreases and the overall stability |
The first step is to ask questions and not to replace the project interface, cutting experiments and stable computations.
Selection guides
Project judgments and procurement conclusions
The value of the film is to improve the friction between the surface of the fabric, drainage network or soil, and not to automatically ensure the safety of any slope. The film is preferred when there is a risk of slope, naked and uncovered slip; when there is a disruption of the soil, slope, wet soil or construction machinery, the single, double-sided and rigidity scheme should be determined by direct cutting tests of the surface.
Selection guides
Acceptance points and common risks
- The face is a slippery slope.When groundwater and weak soil are not treated, the slip surface may be transferred to the interior of the soil.
- Parametrically inconsistentThe surface height, effective thickness and the nominal thickness should be compared according to the same criteria.
- The lack of persistenceThe top of the rigidity gap, temporary loading and subdivision of the soil must be included in the construction plan.
Selection guides
Steps to landing
- The body is made ofThe platforms are available in slope, length, slope, platform and solid pit dimensions.
- Confirmation of contactThe material on the membrane, sub membrane and water content.
- Ask for a sampleThe interface is cut straight using the geomembrane and the ground.
- Locking the rollsThe same time, the effective thickness, type of surface, roll width and direction of laying are confirmed.