CN204919521U

CN204919521U - Integrated control structure suitable for moving dunes

Info

Publication number: CN204919521U
Application number: CN201520633902.9U
Authority: CN
Inventors: 肖建华; 周立华; 俎瑞平; 屈建军; 陈勇; 王睿; 赖俊华; 殷代英
Original assignee: Cold and Arid Regions Environmental and Engineering Research Institute of CAS
Current assignee: Cold and Arid Regions Environmental and Engineering Research Institute of CAS
Priority date: 2015-08-21
Filing date: 2015-08-21
Publication date: 2015-12-30
Anticipated expiration: 2025-08-21

Abstract

The utility model provides an integrated control structure suitable for moving dunes, including the sand dune bind, gu po and lockstitching a border. It covers at the sand dune top covering the net to bind, has protected the original morphological feature in sand dune top, has reduced the regional whole wind speed in sand dune, reduces the sand dune travel rate, gu po is the square that fixes the sand of a fixed dune side slope, can prevent effectively that sand from burying and eroding, reduces the earth's surface wind speed, does benefit to formation skinning and vegetation growing, and the promotion sand dune side slope ecosystem recover, lockstitches a border as that it hinders husky fence to set up three within a definite time on the mound, has both played the husky source of interception, reduces sloping measure admittedly and mound and is buried by sand within a definite time, has reduced ground wind speed between the mound again, has protected mound ecosystem within a definite time. The utility model provides an activity of the effectual prevention sand blown by the wind of the gu po mode of lockstitching a border that binds, fixed moving dunes, fundamentally has administered the sand damage, has protected ecology to sustainable, easily the large tracts of land is popularized and applied.

Description

A kind of integrated control structure being applicable to moving dunes

Technical field

The utility model belongs to sand damage control and technical field of biological recovery, relate to a kind of by binding, Gu Po and lock seaming aggregative model administer moving dunes.

Background technology

China desert, Gobi desert, blowland and desertification land have 1,670,000 Km ², account for 17.4% of China's land area.The narrow sense desert area that sand dune covers has 68.4 ten thousand sq-kms, the desert area that wherein flows has 44.6 ten thousand sq-kms, half-stationary dessert 14.4 ten thousand sq-km, fixing desert 9.4 ten thousand sq-km, wherein especially the most serious with the desert sand damage that flows, difficulty of governance is maximum.

For a long time, dust storm Prevention Technique is mainly implemented on desert area and neighbouring means of transportation (railway, highway), transmission line of electricity, petroleum pipeline, productive life facility (farmland, residence, factory), and in case for controlling, and moving dunes improvement is related to seldom.In the last few years, especially the development of sand industry and the raising of environmental requirement, the mankind are more and more deep in desert, desert lining establishes a large amount of desert photovoltaic plants, Desert Agriculture, desert factory, holiday village, desert innerland, desert occur, to desert dune administer bring difficult task more.

Current sand dune administering method has: one is that as the mechanical measures for sand prevention such as straw checkerboard barrier, nylon wire grid, cubic meter of stone lattice, withy grid cover sand dune, but this kind of method cost is very high, and dustproof effect is very poor directly by traditional dust storm Prevention Technique.Because Drift On Active Dune Surface stream is movable strong, its feature is different from usual Gobi windy sand flow, erodes the strongest bottom windward side, sand dune, and tradition is fixed the sand grid and is easy to bury, and top is easy to occur sapping, leeward side is easy to the phenomenons such as sand buries occur.Another kind method utilizes the machinery such as large-scale go-cart to be directly bulldozed on sand dune, and then re-lay tradition at the smooth Shamian Island be bulldozed and fix the sand the measures such as grid, the method one is that cost is high, is bulldozed human and material resources, the financial resources brought on sand dune huge; Two is the destruction of causing the dune embryonaire ecosystem, between mound, sand dune physical features low, moisture content is more, between this mound physical features be desert plant growth be area of concentration, be also control the region of sand dune movement.Be bulldozed the disappearance that ground between a large amount of mound can be caused in sand dune, impel a large amount of psammophytes dead because of destruction vegetatively; Three is that dustproof effect is poor, and smooth Shamian Island comparatively sand dune is more conducive to Sand Movement, and has acceleration, and easier grid deflation and the sand of tradition being fixed the sand of eroding buries.

Summary of the invention

For the present situation of above-mentioned windblown sand movement, the purpose of this utility model is to provide a kind of integrated control structure being applicable to moving dunes.By binding, Gu Po, lock seaming, administer the object of moving dunes to reach.

The purpose of this utility model is achieved through the following technical solutions:

Be applicable to an integrated control structure for moving dunes, it is characterized in that:

A. bind and cover top of sand dune by covering net, windward side covers 8m-10m position, top, distance slope, and leeward side covers 5m-7m position, top, distance slope, cover the plug in pricker in selvage edge to fix, and make by tied silk, plug in pricker interval 1.5m, tied silk spacing is 20cm, to prevent from being uncovered by wind;

B. grid is fixed the sand in Gu Po setting from covering the peripheral 2m place of net, fixes the sand grid extension to be arranged on 30m place, distance Qiu Jiandi center; Fixing the sand in grid, to plant psammophytes and short and small desert shrub plant;

C. lock seaming is fixed the sand grid periphery and is arranged three roads and hinder husky fence, hindering husky barrier pitch is 10m, lay respectively at Qiu Jiandi center, hinder husky fence to be made up of column, wire gauze, stay cord, 1m place under the buried table of column, uses stay cord vertical columns, upper and lower between column, cross has drawn twice wire gauze, sand-proof net is attached on wire gauze, and fixes with plastic tape colligation, and below Shamian Island 8cm is imbedded in sand-proof net bottom.Hinder between husky fence and plant desert shrub plant;

Above-mentioned cover net adopt be anti-aging nylon establishment net, aperture is not more than 0.5cm, and degree of porosity is 20-25%, and covering net width is 8-12m.

Above-mentioned what fix the sand that grid adopts is anti-aging HDPE Sand-fixation net, or being string sand proof net, is highly 15-20cm.

The sand-proof net of the husky fence attachment of above-mentioned resistance is anti-aging HDPE sand-proof net, is highly 1.8m.

The advantage that the utility model hinge structure has is:

1, the utility model by binding, Gu Po, lock seaming comprehensive regulation moving dunes, effectively can stop wind-sand activity, fixing moving dunes, have fundamentally administered sand damage, protected ecology, and cost are low, environmental protection, sustainable, are easy to large scale application.

2, the utility model fully combines sand dune sandstorm feature; suit measures to local conditions; utilization is bound measure; both sand dune was secured; utilize again sand dune to push up morphological feature and form the natural dike that keeps out the wind, reduce the whole wind speed in region, sand dune, inhibit the movement of drift sand; for Gu Po, lock seaming safeguard procedures provide condition, protect the overall ecological environment in sand dune effectively.

3, solid slope measure of the present utility model can effective fixed dune side slope, and to bind and between lock seaming measure, utilization is fixed the sand grid and is reduced earth's surface wind speed, reduce the movement of drift sand, can effectively prevent sand from burying and erode, be beneficial to sand bed face and form skinning, promote ecosystem restoration, for follow-up plantation psammophytes is laid a solid foundation.

4, the husky source of interception had both been played in lock seaming measure of the present utility model, reduced solid slope measure and fixed the sand grid and buried by sand, to utilize between mound, sand dune physical features low; moisture content is more; psammophytes such as plantation shrub etc., can promote that psammophytes grow, play to protect between mound ecosystem effect.

Accompanying drawing explanation

Fig. 1 is that the utility model adopts the Gu Po lock seaming comprehensive regulation moving dunes sectional schematic diagram that binds;

Fig. 2 is that the utility model binds layout schematic diagram;

Fig. 3 is that the utility model Gu Po fixes the sand grid schematic diagram;

Fig. 4 is the husky fence schematic diagram of the utility model lock seaming resistance.

Detailed description of the invention

The utility model covers the anti-aging nylon establishment net that net adopts; Fixing the sand the anti-aging HDPE Sand-fixation net that grid adopts, or is string sand proof net; The sand-proof net hindering the attachment of husky fence is that anti-aging HDPE sand-proof net is the municipal China in Dingxi, Gansu Province and produces through netting industry Co., Ltd.

Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail again:

A kind of integrated control structure being applicable to moving dunes is as Figure 1-Figure 4:

A. bind and cover top of sand dune by covering net 1, windward side covers 8m position, top, distance slope, and leeward side covers 5m position, top, distance slope, covers selvage edge and fixes with plugging in pricker (2).Plugging in pricker 2 is bamboo pricker, and length is 20cm, covers overlapping connection 15cm place between net, and fix with plugging in pricker 2, and make by tied silk 3, bamboo pricker interval 1.5m, tied silk 3 spacing is 20cm, to prevent from being uncovered by wind; Cover net 1 for anti-aging nylon establishment net, aperture is 0.5cm, and degree of porosity is 25%, and covering net 1 width is 8m.

Gu Po arranges 1m × 1m fix the sand grid 4 from covering the peripheral 2m of net 1, and fixing the sand grid 4 for anti-aging HDPE Sand-fixation net, is highly 15cm.Fixing the sand grid 4 extension is arranged on 30m place, distance Qiu Jiandi center.At leeward slope slip face gradient maximum, setting fixes the sand grid 4 for strip, is adapted to slip face position, and easy construction, bring during grid can be avoided to construct and destroy slip face, because slip face sand is very loose, one steps on flowing of will caving in.Fix the sand grid lower end and imbed below Shamian Island 3cm.

Fixing the sand to plant psammophytes in grid 4, based on husky sward basis and short and small desert shrub plant, as sand sagebrush (Artemisia filifolia), husky rice, sacsaoul etc.;

C. lock seaming is fixed the sand grid 4 periphery and is arranged three roads and hinder husky fence 5, and what hinder that husky fence 5 adopts is anti-aging HDPE plain weave sand-proof net, and be highly 1.8m, its spacing is 10m.Three roads hinder husky fence 5 and lay respectively at Jian Di central area, mound, hinder husky fence 5 and are made up of column 8, wire gauze 7, stay cord 9.Be 1m place under the buried table of column 8 of 8cm by diameter, with stay cord 9 vertical columns 8.Upper and lower between column 8, cross has drawn twice wire gauze 7, and sand-proof net is attached on wire gauze, and sand-proof net colligation is fixed on wire gauze with plastic tape 6.Below Shamian Island 8cm is imbedded in sand-proof net bottom, prevents drift sand from transition off the net.Hinder between husky fence 5 and plant desert shrub plant; Comprise salix monogolica, hedysarum scoparium, sacsaoul etc., play vegetative sand control sand prevention effect.

Claims

1. be applicable to an integrated control structure for moving dunes, it is characterized in that: comprise bind, Gu Po and lock seaming;

A. bind and cover top of sand dune by covering net (1), windward side covers distance Po Ding position, leeward side covers distance Po Ding position, cover network edge to fix with plugging in pricker (2), cover and fix with plugging in pricker (2) overlapping connection between net, and make by tied silk (3), plug in pricker (2) interval 1.5m, tied silk (3) spacing is 20cm, to prevent from being uncovered by wind;

B. grid (4) is fixed the sand in Gu Po setting from covering the peripheral 2m place of net (1), fixes the sand grid (4) extension to be arranged on 30m place, distance Qiu Jiandi center; Fixing the sand, grid (4) is inner plants psammophytes and short and small desert shrub plant;

C. lock seaming is fixed the sand grid (4) periphery and is arranged three roads and hinder husky fence (5), hindering husky barrier pitch is 10m, lay respectively at Qiu Jiandi center, hinder husky fence (5) and be made up of column (8), wire gauze (7), stay cord (9), 1m place under column (8) buried table, with stay cord (9) vertical columns (8), upper and lower between column (8), cross has drawn twice wire gauze (7), sand-proof net is attached on wire gauze, and fix with plastic tape (6) colligation, below Shamian Island 8cm is imbedded in sand-proof net bottom; Hinder between husky fence (5) and plant desert shrub plant.

2. a kind of integrated control structure being applicable to moving dunes as claimed in claim 1, it is characterized in that above-mentioned what cover that net (1) adopts is anti-aging nylon establishment net, aperture is not more than 0.5cm, and degree of porosity is 20-25%, and covering net (1) width is 8-12m.

3. a kind of integrated control structure being applicable to moving dunes as claimed in claim 1, it is characterized in that above-mentioned what fix the sand that grid (4) adopts is anti-aging HDPE Sand-fixation net, or be string sand proof net, is highly 15-20cm.

4. a kind of integrated control structure being applicable to moving dunes as claimed in claim 1, it is characterized in that the sand-proof net that the husky fence (5) of above-mentioned resistance is adhered to is anti-aging HDPE sand-proof net, is highly 1.8m.