Introduction of non-woven geotextile slope protection construction method

Non-woven fabric is a kind of eco-synthetic material. It has the ability to resist freezing and thawing, acid and alkali and ultraviolet rays. It is a very practical new environmental protection material. Greening projects are inseparable from non-woven geotextiles. Non-woven fabrics cover a wide range of areas. They are synthetically processed from polyester or polypropylene. Polypropylene PP is an organic polymer with very stable performance. It is generally used in areas with more complex environments. It has the characteristics of freeze-thaw resistance, freeze-thaw resistance, acid and alkali resistance, UV resistance, and long-term outdoor degradation. It is an ideal material for slope protection. 15 days after the emergence of seedlings, in order to promote the growth of vegetation, nitrogen fertilizer (5g/m2) should be applied once, and compound fertilizer (15g/m2) should be applied once in 10 days, and water should be properly watered according to climatic conditions to achieve the effect of greening the slope. Put the plant seedlings in the hole, you must put all the roots of the plants inserted into the non-woven fabric, and then cover the surface with soil. After the cover is completed, water and maintain it regularly. Use cones on the surface of the non-woven fabric to make holes with the same size as the roots of the selected plants. The filling soil in the non-woven fabric requires good physical and chemical properties, a loose structure, aeration, and strong water and fertilizer retention capabilities, suitable for plant growth, and cannot be mixed with large pieces of gravel and other impurities. The gradation of the filled gravel should be between 14mm-25mm. The gravel with larger particle size has larger gaps, which is beneficial to drainage. The crushed stone has high hardness, and the use of crushed stone as the base can make the foundation of the entire project firm and help maintain the stability of the overall structure. The water permeability of the gravel is better than that of the soil, which is conducive to the drainage of the seepage of the slope at the foot of the slope, and is conducive to the stability of the overall project. The other is planting soil. The non-woven fabric used for the main slope is filled with soil for greening. Generally, there are two kinds of fillers in non-woven fabrics, one is crushed stone, which is used to build slope foundation. In recent years, it has been widely used in slope protection construction under various severe conditions and other protection and ecological restoration fields. Because the non-woven slope protection system creates a better growth environment on the slope surface (up to 30-40cm thick soil layer), herbs, small shrubs, and even some small trees can grow very well and can form a lush Vegetation effect. At the same time, with the growth of plants on it, the side slope is further fixed, and then planting or planting plants on the stacked bag surface by greening means to achieve the purpose of restoring vegetation. At the same time, through the patented connection accessories, the bag and the bag, the layer and the layer, the non-woven fabric and the slope surface are completely tightly combined to achieve a firm slope protection effect. The triangular non-woven structure ecological bag slope protection system forms a layer of environment suitable for plant growth on the slope surface by stacking the non-woven fabric filled with the plant growth substrate layer by layer along the slope surface. Fix the non-woven fabric in the first row with anchor nails or use stainless steel nails to nail the three-dimensional drainage coupling buckle (single-sided nail removal) to the hard interface. It can also be fixed with cement mortar. The joint between the tie band and the seam is placed inside or hidden as far as possible to achieve a neat and beautiful effect. When laying non-woven fabrics on the interface of stone or other hard foundations. By walking or compacting on the non-woven fabric, each lap buckle can penetrate the middle of the non-woven fabric to achieve the purpose of mutual locking, thereby ensuring good contact between the lap buckle and the ecological bag, and ensuring Stability of interlocking structure. The connecting buckle should be close to 1/3 of the inner edge so that each lap buckle spans two eco-bags. It is constructed by a stable stacking method of regular triangles, rather than simple stacking of these components. It is difficult to form a stable flexible slope without the guidance of systematic scientific theory. When placing the eco-bag basement, the horizontal line should be hung for construction, and the vertical seams of the upper and lower layers should be staggered; during the construction, components such as non-woven fabric + engineering buckle + tie straps should be used. Non-woven fabric can be used for slope care of 0°-90°, but when the slope is too large, it should be used in combination with other reinforcement measures (anchor or gabion) according to the nature of the back slope (soil or stone). If the slope exceeds 50 and the back slope is softer and unstable, the height of the slope constructed by non-woven fabrics is relatively low. You can combine engineering (frame beam) reinforcement measures and stack non-woven fabric in the frame beam . The original slope of the slope treated with non-woven fabric should generally not be greater than 50°, otherwise it needs to be cut first, and then the slope surface needs to be trimmed to achieve the slope leveling effect. The above is the detailed introduction of the non-woven geotextile slope protection construction method. If you don’t understand, you can directly contact the relevant personnel of Fujian Nonwovens Co., Ltd.