Construction method for narrow-strip sand fixing net sand f barrier

Abstract

The invention aims to provide a construction method for a sand barrier with a narrow sand-fixing net, which belongs to the technical field of sand control engineering. In the control of desertification, grid sand barriers, sandbag sand barriers, and grass grid sand barriers have been widely used to fix the mobile desert. The above sand barriers have many shortcomings, and it is difficult to achieve convenient construction, low cost and sand fixation effect. it is good. According to the excellent wind erosion resistance function of the narrow sand-fixing net, a construction line with an interval of 40cm to 120cm is drawn on the desert, and the center line of the flattened narrow sand-fixing net overlaps and is spaced parallel to the construction line. Spread a narrow sand-fixing net at 10cm to 12cm, take the sand-fixing net inserter, and insert the narrow sand-fixing net on the desert along the construction line, so that the narrow sand-fixing net is inserted along the construction line, and the construction is narrow Sand-fixing nets and sand barriers achieve the purpose of convenient construction, low cost and good sand-fixing effect.

Description

technical field [0001] The invention relates to the technical field of sand control engineering, in particular to a construction method for sand barriers with narrow sand-fixing nets. Background technique [0002] At present, in desertification control, grid sand barriers, sandbag sand barriers, and grass grid sand barriers have been widely used to fix the mobile desert, and then plant psammophytes on the fixed desert. Due to the high transportation cost and high construction cost of the straw grids, and the straw grids will lose their sand-fixing function due to weathering and corrosion in three years, so that the planted plants will face the situation of being eroded by wind and sand again; The cost per unit area of ​​grid and sandbag sand barriers is much higher than that of grass grid sand barriers, which is an economic burden that cannot be borne by large-scale sand control projects. The applicant previously provided a method for sand-fixing sand ridges with U-shaped s...

AI Technical Summary

Problems solved by technology

Due to the high transportation cost and high construction cost of the straw grids, and the straw grids will lose their sand-fixing function due to weathering and corrosion in three years, so that the planted plants will face the situation of being eroded by wind and sand again; The cost per unit area of ​​grid and sandbag sand barriers is much higher than that of grass grid sand barriers, which is an economic burden that cannot be borne by large-scale sand control projects.

The applicant previously provided a method for sand-fixing sand ridges with U-shaped sand-fixing nets. The U-shaped sand-fixing nets have better sand-fixing effect and the cost is lower than that of grid sand barriers. Yes, the construction is more troublesome, and there will also be a phenomenon that the windward slope of the mobile sand dune is blown over by wind erosion

Images