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 a sand-fixation net grid by inserting and embedding narrow strip-shaped sand-fixation nets at intervals, and belongs to the technical field of sand control engineering. In desertification control, net grid sand barriers, sandbag sand barriers and grass grid sand barriers are widely used for fixing drifting deserts, however, the barriers have various defects and cannot achieve convenient construction, low cost and good sand fixing effect easily. According to the method for constructing the sand-fixation net grid by inserting and embedding narrow strip-shaped sand-fixation nets at intervals, a plurality of construction lines which are spaced from one another by 40 cm-120 cm are scribed on a desert, the narrow strip-shaped sand-fixation nets with the lengths of 10 cm-12 cm and the widths of 20 cm-36 cm are sequentially inserted into the desert along the construction lines at the intervals of 10 cm-12 cm; narrow strip-shaped sand-fixation net sand ridges are constructed; and meanwhile, the narrow strip-shaped sand-fixation nets which are perpendicular to the center line between every two narrow strip-shaped sand-fixation net sand ridges are inserted and embedded in the center line every 1 m-2m, and thus the sand-fixation net grid is formed. By adoption of the method for constructing the sand-fixation net grid by inserting and embedding the narrow strip-shaped sand-fixation nets at intervals, the purposes of convenient construction for engineering sand fixation, low cost and good sand-fixation effect are achieved.

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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