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1. Construction site: it is required to compact, level and remove sharp and protruding objects.
2. Grid laying: on a flat and compacted site, the main stress direction (longitudinal) of the installed grid shall be vertical
In the direction of the embankment axis, the pavement shall be flat, without wrinkles, and tensioned as much as possible. Paved lattice fixed with dowels and earth and stone ballast
The main stress direction should preferably be full length without joint, and the connection between amplitudes can be manually bound and overlapped, and the overlapping width should not be less than
10cm。 If the grid is set in more than two layers, the joints between layers shall be staggered. After laying a large area, adjust its flatness as a whole
Degrees. After a layer of soil is filled and before rolling, the grid shall be tensioned again with manual or machine tools, and the force shall be even, so that the grid is
The soil is in a straight stress state.
3. Selection of filler: filler shall be selected according to design requirements. Practice has proved that in addition to frozen soil, marsh soil, domestic garbage
Chalk 10 and diatomite can be used as fillers. However, the mechanical properties of gravelly soil and sandy soil are stable, and are slightly affected by water content.
Preferably. The particle size of the filler shall not be greater than 15cm, and attention shall be paid to controlling the grading of the filler to ensure the compaction weight.
4. Paving and compaction of filler: after the grid is laid and positioned, it shall be filled and covered in time, and the exposure time shall not exceed 48 hours
The flow process method of laying and backfilling can also be adopted. Pave filler at both ends first, fix the grid, and then push it towards the middle
Enter. The rolling sequence is from both sides to the middle. During rolling, the roller shall not contact the reinforcement directly, and the uncompacted reinforcement is generally
Vehicles are not allowed to drive on it to avoid dislocation of reinforcement. The layer compaction degree is 20-30cm. The compactness must meet the design requirements
This is also the key to the success of reinforced soil engineering.
5. Waterproof and drainage measures: in reinforced soil engineering, the drainage treatment inside and outside the wall must be done well; Do a good job of foot protection and prevention
Scour; Filter and drainage measures shall be set in the soil mass. If necessary, geotextile and permeable pipe (or blind ditch) shall be set to drain water in the way of dredging, which shall not be blocked, otherwise hidden danger will occur.