Geogrid expansive soil replacement construction technology considerations


First, when the geogrid is anchored with anchoring steel, it needs to be tensioned by tension beam. The geogrid is elastic material. If it is not tightened, the geogrid will be loose or wrinkled after replacement. Can not play the role of restraining the deformation of the soil.
Second, when the geogrid is filled, the edge line must be overfilled to ensure the compactness of the anti-packaged soil.
Third, the overall large reverse package needs to be pulled from the bottom layer of the geogrid to the top, and the hoisting machine and the tension beam are used to tighten the effect.
The fourth is to strengthen the control of soil moisture content to ensure that the moisture content of the soil material is close to optimal, which is the premise to achieve design compaction.
Fifth, geogrid is a kind of lacing material with anti-aging, good creep resistance, high tensile strength and interaction with filling. Storage and stacking must avoid sunlight, keep ventilation, dry and keep away from high temperature. Source to ensure materiality

Can be unaffected and extend the life of the material.
The sixth is to avoid damage to the laid geogrid. If there are hard protrusions on the surface of the soil layer, it is easy to break or damage the geogrid. Before laying, the site should be leveled and compacted. It is strictly forbidden to directly grind the construction machinery on the geogrid. Pressure.
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Wire threaded sleeve: A spiral made of diamond-shaped wire. The outer surface forms an external thread and the inner surface forms an internal thread. Mounting handle: A straight shank that is bent inward at one end of the wire threaded sleeve. Specially used to screw the wire screw into the screw hole. When installing the wire screw sleeve, use a special tool to pass through the wire screw sleeve, clamp the mounting handle, and screw the diameter of the wire screw sleeve to screw the wire screw sleeve into the screw hole. Guidance: At the end of the wire screw sleeve mounting handle, the diameter of the wire screw sleeve within 210 degrees of the mounting handle is reduced, so that the end of the wire screw sleeve can smoothly enter the screw hole when the screw thread is screwed into the screw hole. This section of the wire screw sleeve is called the guide. Folding end groove: A notch designed to remove the mounting handle. After the wire screw is screwed into the screw hole, the mounting handle loses its effect, which in turn affects the screw passing through the wire screw sleeve. In some cases, the mounting handle needs to be removed so that the screw is not obstructed by the threaded screw. To this end, a notch is formed in the guide section at 30 to 90 degrees from the mounting handle so that the mounting handle can be broken therefrom when the mounting handle is impacted by a tool.

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