Method for constructing sand-fixation net grid by inserting and embedding narrow strip-shaped sand-fixation nets at intervals

Abstract

The invention aims to provide a method for constructing sand-fixing mesh grids by inserting narrow sand-fixing nets at intervals, belonging to the technical field of sand control engineering. In desertification control, grid sand barriers, sandbag sand barriers and grass grid sand barriers have been widely used to fix mobile deserts. The above sand barriers have many shortcomings, and it is difficult to achieve the effect of convenient construction, low cost and sand fixation. it is good. In the present invention, construction lines with an interval of 40cm to 120cm are drawn on the desert, and along the construction line, the narrow sand-fixing nets with a length of 10cm to 12cm and a width of 20cm to 36cm are inserted in sequence on the desert at intervals of 10cm to 12cm. At the same time, on the center line between the two narrow sand-fixing net sand ridges, a narrow sand-fixing net perpendicular to the center line is inserted at an interval of 1m to 2m to form a sand-fixing mesh grid. The purpose of engineering sand fixation is convenient, low cost and good sand fixation effect.

Description

technical field [0001] The invention relates to the technical field of sand control engineering, in particular to a method for constructing sand-fixing net grids by inserting narrow sand-fixing nets at intervals. 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-fixin...

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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

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