Basalt fiber geogrid laying steps and precautions

The laying steps of bi-directional warp-knitted basalt geogrid are as follows
1. One end will be fixed with fixed iron and nails fixed in has been sprinkled with sticky layer asphalt on the substructure, nails can be hammered or nail gun shot into, and then the grille longitudinal tension and segmented fixed, the length of each section is 2-5 meters, for cement concrete pavement, according to the contraction joints spacing segments. Steel nail position is set in the joints, the requirements of the grille tension, its longitudinal and transverse are in the straight tension state.
2. when laying basalt geogrid, the bottom and the free end of the grid should be fixed with Φ6mm U-type Steel Bar on the excavated slope and ground or filling level, and the longitudinal axis of two-way geogrid should be perpendicular to the direction of the channel axis. 3. before each layer of filling, the geogrid should be fixed on the concrete road surface.
3. Before each layer of filling, the laying (plus extra width) edge line of the filling soil material should be put out first and marked with white gray line.
4. Expansion soil paving, fixed before the free end of the grating with a tension beam taut, with machinery in the tightening of the grating above the method of filling, bulldozing bulldozers, each layer of virtual paving thickness of 32 ~ 33cm, vehicles and construction machinery shall not be directly crushed grating, so as to avoid damage to the grating and laxity.
5. crushing, and then 20t vibrating flat mill for crushing, according to the different requirements of the weak, swelling soil crushing to the required number of times after dry density sampling test, to meet the design requirements of the compaction of the upper layer of soil filling.
6. Grid back-packing, each filling and compaction of two layers of soil about 50cm, cut the slope, the lower layer of grid back-packing to the soil layer above ≥ 1.0m, and the upper layer of grating with connecting rods.

Bidirectional warp knitting basalt geogrid laying need to pay attention to the following matters
1. Before laying, the spikes and protrusions should be removed, and the construction site should be compacted and leveled, and the construction site should be leveled, and the spikes and protrusions should be removed.
2. the direction of the main tensile strength of the reinforcement material should be space quadrilateral wall, fixed unchanged by the nut.
3. The paving shall not be pulled too tightly, and generally the width of each meter length shall be 1~2cm. If the paving height is higher or larger, set the lap length according to the design requirements.
4. The paved geosynthetics should be flat, firm and well bonded with asphalt.