一. Preparation
1、Slope cleaning:
It is necessary to thoroughly clean the slope, eliminate weeds, gravel, tree skills and other debris, and ensure that the surface of the slope is smooth and free of irregularities. Loose soil should be compacted to improve the combination effect of net mat and slope surface. This step is very important, it not only affects the laying quality of the net mat, but also directly affects the growth effect of the subsequent vegetation.
2、Material Preparation:
Transport the required three-dimensional composite ecological net mat, vegetation blanket, fertilizer, humectant, seeds and special construction tools to the site, and distribute power supply. The selection of seeds should be based on local climatic conditions, soil properties and construction season, and plant species with developed root system and strong adaptability should be selected.
二. Mesh mat laying
1、Nailing mesh pad:
Excavate trenches at the top and foot of the slope respectively, lay the net mat in the trench, fix it with square wooden piles, and fill it with soil and tamp it. Then, lay a net mat from top to bottom from the top of the slope to ensure that the longitudinal and horizontal overlap length is not less than 20 cm， use simultaneously U Section steel nails are fixed to avoid suspended wrinkles.
2、Backfill soil:
After the net mat is fixed, the original surface soil is used for backfilling, which is divided into 2 ～3Throw it on the slope manually for the second time, and sprinkle water mechanically after each throwing to make the soil layer settle naturally and compact appropriately. The backfill soil should be well-proportioned and free of stones and debris to ensure the uniform growth of vegetation.
三. Vegetation planting
1、Spread the seed:
Choose a professional spreader for seed spreading to ensure that the seeds are evenly distributed on the net mat. In large-scale areas, guest soil spraying technology can be adopted. The sowing amount is adjusted according to the seed type and slope conditions, generally about 25 grams per square meter. After spreading, spread another layer of 15 mm Thick masking soil can protect seeds from weathering and erosion.
2、Vegetation blanket laying:
Under certain circumstances, vegetation blankets can be laid on the net mat, which can provide better soil protection and vegetation growth environment. The vegetation blanket should be laid from the top of the slope to the bottom of the slope, buried in the ditch on both sides, and used in the middle U Type nail fixation.
四. Post-maintenance: ensuring the effectiveness of ecological restoration
1、Irrigation management:
After laying, irrigate immediately to keep the soil moist until the vegetation germinates and grows. At the beginning, it should be watered once a week. After the root system of vegetation is developed and the drought resistance is enhanced, the watering frequency can be reduced.
2、Pest and disease control:
Strengthen maintenance and management, and timely carry out water spraying, replanting, weed removal and pest control. When the vegetation grows to a certain height, the non-woven fabric can be removed, which can promote the normal growth of vegetation.
Post time: Mar-26-2025
