A "spider web"-shaped combined sand barrier with the functions of preventing sand collection and sand burial

A technology of sand barrier and sand burial, which is applied in soil protection, construction, and infrastructure engineering, etc., can solve the problems of no dredging and shunting, increased cost of grass squares, and huge total investment, so as to save paving materials and reduce Effect of sand collection and sand burial, area reduction

Active Publication Date: 2022-02-11
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First, with the increase of raw material straw (mainly wheat straw and rice straw) purchase and transportation costs and labor costs, the cost of laying grass grids is also increasing year by year; second, the grids only block and fix the wind and sand flow, There is no dredging and shunting effect, resulting in serious sand burial and sand collection in the continuous sand transport area; third, wheat straw or rice straw is basically completely differentiated in 3 to 4 years under general climate conditions, so repeated binding is required
In some areas with harsh climate conditions in our country, it has been tied more than 60 times since liberation, and the total investment is very huge.

Method used

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  • A "spider web"-shaped combined sand barrier with the functions of preventing sand collection and sand burial
  • A "spider web"-shaped combined sand barrier with the functions of preventing sand collection and sand burial

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In low (sand dune height less than 5 m) and compared to flat floral sand district (slope ≤ 30 °), with straw (grass, straw, sunflower rod, sorghum, corn stalk or branches), rolling "spider web" combination Sandwork, combined sandbladiness consists of arc sofaice and linear sofaper connection, and the arc mesh is composed of multi-layer arc network, and each layer of arc is composed of several elliptical sofehed. Rolling an elliptical sofa break according to the landform and the sand area. When the rolling is completed, the elliptical hip break is 2 m from the top of the top of the sand tackle. The linear spacing of the elliptic arc hip break is 1m, and the two neighboring three-line sofaff is included. ~ 4 elliptic arc hip breaks, between the two linear sofales including 2 to 3 elliptical arc hips, the distance between 1.5 ~ 2.5 m, transplanting shuttle or cituls, transplanting shuttle or lesser 70 strains, the height of the ocean grass was 20 cm.

[0022] When rolling the ...

Embodiment 2

[0024] The sand dunes sand slopes are ≤30 °, with wheat grass or straw as raw materials, rolling "spider web" combination sandblad. The "spider web" sandbath consists of an arc sofaver and a linear sofaper connection. The arc mesh is composed of a multi-layer arc network. Each layer of arc is constructed from several semicircular arc hip breaks, such as figure 1 . When the semi-arc sofaver is 1.5 m, when laying, the semi-arc hip breaks along the top of the sand tacks is 2 m, and the linear spacing of the semicircular hip break is 1M, the jack grass The height is 25 cm, the semicircular arc is on the direction of the main wind, and the distance between 1.5 ~ 2.5 m is 1.5 ~ 2.5 m. Each of the two-line sofa composed of 3 to 4 semi-circular soflability between the two linear sofales is composed of 3 ~ 4 semi-circular sofa breaks between 3 to 4 semi-circular soflamas. Semi-circular sofa composite.

[0025] When gravel, pebbles or soil is raw material, first use sand to heat a height 25...

Embodiment 3

[0027] The sand dune sand slut is satisfied with 30 ° figure 1 . When the arc sofaver is 1.2 m, when laying, the semi-circular arc hood is arranged in the top of the sand tackle to 1.5m, and the linear spacing of the semi-circular sofehed is 1m. The height is 25 cm, the arc top and the main sandstream direction are correct, and the distance between 1.5 ~ 2.5 m is 1.5 ~ 2.5 m. Performance of the two neighboring two linear sofales consists of 5 to 7 semi-circular arc soflamas, and there is 3 ~ 4 and a half of the arc network. Circular sofa composite.

[0028] When gravel, pebbles, graft or soil is raw material, first use sand to heat a height 25 cm semi-circular and linear bracket, which is then covering pebbles (or graft or soil) 15 cm, arc radius, laying method and the above same.

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Abstract

The invention discloses a "spider web"-shaped combined sand barrier with the functions of preventing sand collection and sand burial. It is composed of multi-layer arc network, and each layer of arc network is composed of several elliptical arc or semi-circular arc sand barriers connected, and the elliptical arc or semi-circular arc sand barriers expand outward from the dune top and are arranged in parallel. Compared with ordinary grass grids, the present invention has a similar survival rate of auxiliary psammophytes, but can save 20% of laying materials, greatly reducing the cost; the "spider web" combined sand barrier has the functions of dredging, shunting, slowing down, blocking and fixing quicksand It can reduce sand collection and sand burial. Compared with ordinary grass grids, the "spider web" combined sand barrier can reduce the sand collection and sand burial area by 30%.

Description

Technical field [0001] The present invention relates to a "spider web" shaped sand break, in particular to a "spider web"-shaped combination sand break of the anti-closing sand and sand buried function, which belongs to Soil and Water Conservation Technology. Background technique [0002] Desertification is a major environmental issue facing the world today. There are more than 110 countries around the world that are affected by land desertification, with an annual economic loss reached $ 42 billion. my country is one of the most serious countries in the world. The fifth "China Desertification and Sands Online" issued by the State Forestry Administration 2015 show: As of 2014, my country's desertification land area 261.16 × 104 km 2 , Accounting for 27.20% of the total land area. Desertification land is mainly distributed in Xinjiang, Inner Mongolia, Tibet, Qinghai and Gansu. Desertification has not only caused huge economic losses to the state, but also affects the living enviro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D3/00
CPCE02D3/005E02D2300/0045
Inventor 雷自强熊红冉叶喜娥王娜杨凤红孔妍蓉康玉茂杨尧霞米亚军
Owner NORTHWEST NORMAL UNIVERSITY
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