CN103774635B - The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam - Google Patents
The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam Download PDFInfo
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- CN103774635B CN103774635B CN201410038911.3A CN201410038911A CN103774635B CN 103774635 B CN103774635 B CN 103774635B CN 201410038911 A CN201410038911 A CN 201410038911A CN 103774635 B CN103774635 B CN 103774635B
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Abstract
The present invention is intended to provide a kind of construction method of outstanding pouch-shaped high vertical sediment trapping net check dam, belongs to sand control engineering technical field；Purpose is the defect for overcoming prior art, the constructing structure of existing high vertical sediment trapping net, from single width suspension such as curtain, change over the outstanding pouch-shaped high vertical sediment trapping net of the mesh bag shape hung up like bag bottom equipped with Desert Sand, make sediment trapping net that there is preceding wire side and rear wire side, desert drift sand can be intercepted the front and rear sides between two wire sides of outstanding pouch-shaped high vertical sediment trapping net with sediment trapping net；Sand drift suppression is arranged at the bottom of net, and sediment trapping net will not be blown down by strong wind from the base erosion of net, the construction of outstanding pouch-shaped high vertical sediment trapping net at the top of the sand bar that artificial heap is built, and constitutes outstanding pouch-shaped high vertical sediment trapping net check dam.
Description
Technical field
The present invention relates to sand control engineering technical field, the construction method of pouch-shaped high vertical sediment trapping net check dam is specially hanged.
Background technology
At present, in desert treatment, plastic wire construction high vertical sediment trapping net is widely used, is implemented to flowing desert
Intercept and fixed, but due to vertical wire side, when being attacked by strong wind, not only wire side is easily blown above-mentioned high vertical sediment trapping net
It is broken, the wind being blocked change over from horizontal direction above and below vertical direction, wind vertically downward can erosion sediment trapping sieve bottom sand, make
Sediment trapping sieve bottom is failed by naughty empty, then lodges, this sediment trapping net can not be used for constructing check dam, therefore invent a kind of outstanding bag
The need for shape high vertical sediment trapping net check dam has been control of desert.
Applicant delivered in 2009《The fixation and utilization of moving dunes》, splayed cylinder mould is illustrated in article husky
Hinder the principle on tackling quicksand mound, set while illustrating at the top of moving dunes after splayed net cage sand barrier, due to husky toward eminence
The characteristic of stream, tall and big moving dunes have reformed into tall and big mechanical sand barrier, therefore the husky effect of mechanical sand barrier resistance on textbook
Fruit formula V=4.5H2Sin a (formula I), are modified as V=4.5H2+[H1+H2]2Sin a (formula 2)；In (formula 1), V is resistance
Sha Liang, H are the height of mechanical sand barrier, and a is the angle of cut.In (formula 2), V is the husky amount of resistance, and H is that the height .H1 of mechanical sand barrier is flowing
The height of sand dune windward slope, H2 is the height of moving dunes leeward slope, and a is the angle of cut.Because splayed net cage sand barrier exposes flowing
The top on sand dune is less than 15cm, if applying mechanically the formula on textbook, the splayed net cage sand barrier being placed at the top of moving dunes, resistance
Husky effect is very little, but actually exposes the splayed net cage sand barrier that top of sand dune is less than 15cm, due to there is cylinder mould husky
Moving dunes under barrier are padded, and the husky effect of its resistance, which is significantly larger than, is arranged on height on flat desert, being highly more than 150cm
Vertical sediment trapping net.Therefore the husky effect of the resistance of (formula 1) to the splayed net cage sand barrier at the top of moving dunes of constructing is not applied to, must
It must can just be described the problem with (formula 2).After splayed net cage sand barrier is set at the top of moving dunes, blocked by splayed net cage sand barrier
Cut down the drift sand come and be deposited in top of sand dune, by lifting splayed net cage sand barrier, make lifting upwards at the top of moving dunes, flowing
Sand dune is just no longer moved forward, and harmful moving dunes reform into beneficial mechanical sand barrier, and the mechanical sand barrier of such height is to use
What the high vertical sediment trapping net that any method is built can not be accomplished.So as to show the work(in the efficient intercepting desert of moving dunes
Energy.But the mechanical sand barrier being so efficiently easy to get on desert, is not recognized also, fails to find in textbook so far at present
Correlation theory and experimental data.What is introduced on textbook is the waist for high vertical sediment trapping net being arranged on moving dunes, reaches and cuts
The purpose of flat moving dunes, so far people still moving dunes are handled as disaster.So applicant tries to lead to
Engineering practice is crossed, to prove that moving dunes are can be transformed into tall and big check dam.
The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam, is that applicant fixes stream from construction splayed net cage sand barrier
Constructed with next construction method, outstanding pouch-shaped high vertical sediment trapping net is explored in the engineering practice for constructing check dam in sediment trapping on dynamic sand dune
Dam crest portion, it is more stable than splayed net cage sand barrier, it can highly exceed splayed net cage sand barrier, therefore sediment trapping effect is than splayed net
Cage sand-protecting barrier is good, because outstanding pouch-shaped high vertical sediment trapping net has the bag bottom for being loaded with sand, weather-proof effect is better than splayed net cage sand barrier,
It will not be turned over by strong wind from the base erosion of net.
The content of the invention
The technical problem to be solved in the present invention is the defect for overcoming prior art with the technical assignment proposed, existing height
The constructing structure of vertical sediment trapping net, from single width suspension such as curtain, changes over bag bottom and the mesh bag shape that Desert Sand is hung up is housed
Outstanding pouch-shaped high vertical sediment trapping net, make sediment trapping net that there is preceding wire side and rear wire side, can desert drift sand intercept in outstanding pouch-shaped Gao Li
With the front and rear sides of sediment trapping net in the middle of two wire sides of formula sediment trapping net；Sand drift suppression is arranged at the bottom of net, and sediment trapping net will not be by strong wind
Blow down from the base erosion of net.
Sediment trapping net of the present invention be wide cut in 120cm between 350cm, modeling of the porosity between 45% to 55%
Expect net.
The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam, it is characterised in that：It is vertical with prevailing wind direction on desert
Direction, one of height is erected with loading machine heap in 90cm to the sand bar between 250cm, and the upper flat of sand bar is into width in 80cm
To the platform between 200cm, a bar ditch are dug on platform, the width of ditch is in 30cm between 70cm, and depth is in 15cm to 50cm
Between；Wide cut is selected, to the sediment trapping net between 350cm, sediment trapping net to be put down along sand bar in 100cm according to the width of ditch and depth
Ditch on platform is spread out and put on, and the center line of sediment trapping net is corresponding with bottom of trench, takes length in 70cm to the batten between 230cm by sediment trapping net
Bottom of trench is pressed into, batten, which is vertically pierced through, to be inserted after sediment trapping net in the sand of bottom of trench, and the batten depth during insertion is husky is in 30cm to 70cm
Between, batten is fixed in ditch, the support as outstanding pouch-shaped high vertical sediment trapping net；1m is spaced in the ditch for having spread out and put on sediment trapping net
To 2m one support of construction, one by one between support, connection is tightened in top by an iron wire, to strengthen the steady of support left and right directions
It is qualitative；Desert sand drift near taking is pressed in sediment trapping and ditch is filled up on the net, then the sediment trapping net of ditch both sides is propped up upwards, tightened,
The top margin tendency cradle top of net is simultaneously coupled and fixed with cradle top, then be spaced 30cm to 50cm the top margin of both sides sediment trapping net with
Iron wire, which is coupled, to be fixed, and constitutes outstanding pouch-shaped high vertical sediment trapping net, and outstanding pouch-shaped high vertical sediment trapping net and sand bar are combined into outstanding pouch-shaped Gao Li
Formula sediment trapping net check dam.
Brief description of the drawings
Fig. 1 hangs the construction method main view schematic cross-section of pouch-shaped high vertical sediment trapping net check dam for the present invention；
In accompanying drawing：1st, pouch-shaped high vertical sediment trapping net is hanged, 2, support, 3, iron wire, 4, Desert Sand, 5, outstanding pouch-shaped high vertical sediment trapping
Net check dam.
Embodiment
In conjunction with Figure of description, the invention will be further described：Sediment trapping net of the present invention be wide cut in 15cm extremely
Between 50cm, plastic wire of the porosity between 45% to 55%.
As shown in figure 1, the construction method of outstanding pouch-shaped high vertical sediment trapping net check dam, it is characterised in that：With master on desert
The vertical direction of wind direction, one of height is erected with loading machine heap in 90cm to the sand bar between 250cm, the upper flat of sand bar into
Width, to the platform between 200cm, digs a bar ditch, the width of ditch is in 30cm between 70cm, and depth exists in 80cm on platform
15cm is between 50cm；Select wide cut in 100cm to the sediment trapping net between 350cm according to the width of ditch and depth, sediment trapping net
Ditch on sand bar platform is spread out and put on, and the center line of sediment trapping net is corresponding with bottom of trench, takes length in 70cm to the wood between 230cm
Sediment trapping net is pressed into bottom of trench by bar, and batten, which is vertically pierced through, to be inserted after sediment trapping net in the sand of bottom of trench, and the batten depth during insertion is husky exists
30cm is fixed on batten in ditch between 70cm, the support 2 as outstanding pouch-shaped high vertical sediment trapping net；Spreading out and putting on sediment trapping net
Ditch in interval 1m to 2m construct a support, one by one between support, connection is tightened in top by an iron wire 3, to strengthen branch
The stability of frame left and right directions；The heap of Desert Sand 4 near taking is pressed in sediment trapping and ditch is filled up on the net, then the sediment trapping net of ditch both sides
The top margin tendency cradle top prop up upwards, tighten, netted simultaneously is coupled with cradle top to be fixed, then is spaced 30cm to 50cm both sides
The top margin and iron wire 3 of sediment trapping net, which are coupled, to be fixed, and is constituted outstanding pouch-shaped high vertical sediment trapping net 1, is hanged pouch-shaped high vertical sediment trapping net and sand bar
It is combined into outstanding pouch-shaped high vertical sediment trapping net check dam 5.
Sediment trapping net of the present invention can be produced in enormous quantities with mechanization, and outstanding pouch-shaped high vertical sediment trapping net check dam can be existed with mechanization
Constructed on a large scale on desert.
Claims (1)
1. a kind of construction method of outstanding pouch-shaped high vertical sediment trapping net check dam, it is characterised in that：It is vertical with prevailing wind direction on desert
Direction, one of height is erected with loading machine heap in 90cm to the sand bar between 250cm, the upper flat of sand bar exists into width
80cm digs a bar ditch to the platform between 200cm on platform, the width of ditch in 30cm between 70cm, depth in 15cm extremely
Between 50cm；Select wide cut in 100cm to the sediment trapping net between 350cm according to the width of ditch and depth, sediment trapping net along sand
Ditch on dam platform is spread out and put on, and the center line of sediment trapping net is corresponding with bottom of trench, takes length to be blocked in 70cm to the batten between 230cm
Sand net press-in bottom of trench, batten vertically pierce through inserted after sediment trapping net bottom of trench it is husky in, the batten depth during insertion is husky in 30cm extremely
Between 70cm, batten is fixed in ditch, the support as outstanding pouch-shaped high vertical sediment trapping net；Between in the ditch for having spread out and put on sediment trapping net
Every 1m to 2m one support of construction, one by one between support, connection is tightened in top by an iron wire, to strengthen support left and right directions
Stability；Desert sand drift near taking is pressed in sediment trapping and ditch is filled up on the net, and then the sediment trapping net of ditch both sides is propped up upwards, stretched tight
Tightly, the top margin tendency cradle top of net is simultaneously coupled with cradle top fixes, then is spaced tops of the 30cm to 50cm both sides sediment trapping net
Side and iron wire, which are coupled, to be fixed, and constitutes outstanding pouch-shaped high vertical sediment trapping net, and outstanding pouch-shaped high vertical sediment trapping net and sand bar are combined into outstanding pouch-shaped
High vertical sediment trapping net check dam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038911.3A CN103774635B (en) | 2013-10-20 | 2013-10-20 | The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410038911.3A CN103774635B (en) | 2013-10-20 | 2013-10-20 | The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam |
| CN201310524933.6A CN103556617B (en) | 2013-10-20 | 2013-10-20 | Outstanding bag shape high vertical sediment trapping net and construction method thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310524933.6A Division CN103556617B (en) | 2013-10-20 | 2013-10-20 | Outstanding bag shape high vertical sediment trapping net and construction method thereof |
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| Publication Number | Publication Date |
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| CN103774635A CN103774635A (en) | 2014-05-07 |
| CN103774635B true CN103774635B (en) | 2017-11-07 |
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| CN106854854A (en) * | 2016-10-13 | 2017-06-16 | 中国科学院寒区旱区环境与工程研究所 | A kind of combined type sand protection facilities suitable for extreme wind area |
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| US6824332B2 (en) * | 2001-04-02 | 2004-11-30 | Melvin Robert Root | Silt fence flat pack and production method |
| CN101240525A (en) * | 2007-02-07 | 2008-08-13 | 娄成城 | Tandem cylinder mould for manufacturing sand barrier, sediment storage dam, sand dyke and sand wall |
| CN102373676A (en) * | 2009-05-12 | 2012-03-14 | 娄志平 | High vertical reverse Y-shaped net cage sand barrier and construction method thereof |
| JP2011067188A (en) * | 2009-09-28 | 2011-04-07 | Norimasa Sasaki | Desert greening system by utilizing collected fog drip |
| CN102031773A (en) * | 2009-11-24 | 2011-04-27 | 娄志平 | Shirt rim type cylinder mould sand barrier and sand blocking and fixing construction method thereof |
| CN102535428A (en) * | 2009-12-11 | 2012-07-04 | 谢爱良 | Method for baffling sands by integrated splayed sand-baffle screen |
| CN102261061A (en) * | 2010-05-25 | 2011-11-30 | 兰州铁道设计院有限公司 | Nylon net fence for Gobi wind sand control |
| CN102369326A (en) * | 2010-08-23 | 2012-03-07 | 娄志平 | Windproof and sand-blocking dam with net cage sand barriers constructed by machine and constructing method thereof |
| CN102587301B (en) * | 2012-03-31 | 2014-12-24 | 成都航发边坡防护工程有限公司 | Double-layer flexible windproof net |
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