Plastic geogrid used in water conservancy has successfully developed flame retardant and antistatic plastic belt for underground coal mine by using polypropylene plastic (PP) and special additives, adopting plastic directional stretching, flame retardant, antistatic and other technologies. And by the national quality inspection department inspection, the product fully meets the requirements and obtains the production license. Hxkws - type mine false roof protective net woven with mine double resistance mesh belt: the net is mainly used for the back net of support, which can replace the metal mesh in the current wood board, bamboo rake and anchor support. The first use of plastic geogrid used in water conservancy is the treatment of various soft foundation, and the second is slope stability control.

Among them, during the first use, various soft foundation treatment methods are various. First of all, according to the soft degree of the foundation, its usage is divided into several kinds. For soft foundation, the powder spray pile is first made when the foundation is treated. A 30-50 cm thick sand gravel cushion is set on the powder spray pile, and one or two layers of plastic geogrid used in water conservancy are laid in the sand cushion layer, and then the sand cushion is filled with soil The design height should reach 95% in the process of filling; for general soft foundation, it is not necessary to set up powder spraying pile, and after leveling the original foundation, weeds and sharp stones, plastic geogrid can be laid, and the filling is the same as above. In addition, at the bridge abutment connection, the problem of vehicle jumping at the bridge head is easy to occur, and the multi-layer laying construction of plastic geogrid is generally used to solve the problem. Practice has proved that the effect is very good. Of course, the commonly used types of plastic geogrid are bidirectional plastic geogrid and bidirectional high-strength composite plastic geogrid. Glass fiber warp knitted plastic geogrid is prohibited.

The second purpose is slope stability control, which can be divided into high fill slope and ordinary slope treatment. For high fill slope, it is generally divided into vertical slope, 45 degree slope and between the two. When vertical slope is made, it is called vertical retaining wall. In this case, high-strength unidirectional tensile plastic geogrid and high-strength composite plastic geogrid are generally used, A small amount of high-strength unidirectional polyester warp knitted plastic geogrid is used, most of which are laid in layers with a spacing of 30-50 cm, and each layer is rolled to the design requirements; for a 45 degree slope, more types of plastic geogrids can be used, including unidirectional and bidirectional plastic geogrids and polyester warp knitted plastic geogrids, and glass fiber warp knitted plastic geogrids are prohibited. Common slope treatment, simple is to directly cover the original slope with plastic geogrid to prevent the surface from loosening, and then cooperate with planting grass to protect the slope to form stable and green effect. Of course, there are also slope treatment in water conservancy projects, using two-way Plastic Geogrid to make a square net box, which is filled with gravel, the effect of water scouring is also very good.