CN103774635A - Construction method for sediment storage dam with suspension bag-shaped high-standing type sediment storage net - Google Patents
Construction method for sediment storage dam with suspension bag-shaped high-standing type sediment storage net Download PDFInfo
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- CN103774635A CN103774635A CN201410038911.3A CN201410038911A CN103774635A CN 103774635 A CN103774635 A CN 103774635A CN 201410038911 A CN201410038911 A CN 201410038911A CN 103774635 A CN103774635 A CN 103774635A
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Abstract
The invention aims to provide a construction method for a sediment storage dam with a suspension bag-shaped high-standing type sediment storage net, and belongs to the technical field of engineering of desertification control. For the purpose of overcoming defects in the prior art, the construction structure of the existing high-standing type sediment storage net is characterized in that a single-suspension curtain is changed to the suspension bag-shaped high-standing type sediment storage net in the shape of a net bag suspending desert sand, so that the sediment storage net is provided with a front net surface and a rear net surface and the desert shifting sand can be intercepted between the two net surfaces of the suspension bag-shaped high-standing type sediment storage net and on the front and rear sides of the sediment storage net; the lower part of the net is suppressed by a sand pile and the sediment storage net is not washed out and blown off from the bottom edge of the net by heavy wind; the suspension bag-shaped high-standing type sediment storage net is constructed at the top of an artificially-piled sand dam to form the sediment storage dam with the suspension bag-shaped high-standing type sediment storage net.
Description
Technical field
The present invention relates to sand control engineering technical field, be specially the construction method of outstanding bag shape high vertical sediment trapping net check dam.
Background technology
At present, in desert treatment, be widely used plastic wire construction high vertical sediment trapping net, implement the interception in flow desert and fix, but above-mentioned high vertical sediment trapping net due to vertical wire side when the invasion and attack that suffer strong wind not only wire side easily blown brokenly, the wind being stopped changes over upper and lower vertical direction from horizontal direction, the sand of wind meeting erosion sediment trapping sieve bottom vertically downward, make sediment trapping sieve bottom be washed in a pan sky and lost efficacy, then lodging, this sediment trapping net can not be used for constructing check dam, therefore inventing a kind of outstanding bag shape high vertical sediment trapping net check dam has been the needs of control of desert.
Applicant has delivered " the fixing and utilizations of moving dunes " in 2009, in article, illustrate the principle on splayed net cage sand barrier fixed flow sand dune, illustrate at moving dunes top simultaneously and arranged after splayed net cage sand barrier, due to the husky characteristic flowing toward eminence, tall and big moving dunes have just become tall and big mechanical sand barrier, therefore the mechanical sand barrier on textbook are hindered to husky effect formula V=4.5H
2sin a (formula I), is modified as V=4.5H
2+ [H1+H2]
2sin a (formula 2); In (formula 1), V is the husky amount of resistance, the height that H is mechanical sand barrier, and a is the angle of cut.In (formula 2), V is the husky amount of resistance, and the height .H1 that H is mechanical sand barrier is the height of moving dunes windward slope, and H2 is the height of moving dunes leeward slope, and a is the angle of cut.The top of exposing moving dunes due to splayed net cage sand barrier is less than 15cm, if apply mechanically the formula on textbook, be placed in the splayed net cage sand barrier at moving dunes top, it is very little hindering husky effect, but in fact expose the splayed net cage sand barrier that top of sand dune is less than 15cm, owing to there being the moving dunes under cylinder mould sand barrier to make liner, it hinders husky effect far away higher than being arranged on high vertical sediment trapping net on smooth desert, that be highly greater than 150cm.Therefore (formula 1) is inapplicable in the husky effect of resistance of the splayed net cage sand barrier at moving dunes top to constructing, and must just can describe the problem with (formula 2).Arrange after splayed net cage sand barrier at moving dunes top, tackled by splayed net cage sand barrier the drift sand getting off and be deposited in top of sand dune, by promoting splayed net cage sand barrier, make the upwards lifting of moving dunes top, moving dunes just no longer move forward, harmful moving dunes just become useful mechanical sand barrier, and so mechanical sand barrier of height is cannot accomplish with the high vertical sediment trapping net that any method builds.Thereby show the function in the efficient intercepting of moving dunes desert.But the mechanical sand barrier being so efficiently easy to get on desert, is not also familiar with by people at present, fails so far to find correlation theory and experimental data in textbook.What on textbook, introduce is the waist that high vertical sediment trapping net is arranged on to moving dunes, reaches the object of scabbling moving dunes, and people still process moving dunes as disaster so far.So applicant is managing by engineering practice, prove that moving dunes are to be transformed into tall and big check dam.
The construction method of outstanding bag shape high vertical sediment trapping net check dam, be applicant from the fixing moving dunes of construction splayed net cage sand barrier and construct the engineering practice of check dam and explore construction method out, outstanding bag shape high vertical sediment trapping net is constructed at check dam top, more stable than splayed net cage sand barrier, highly can exceed splayed net cage sand barrier, therefore sediment trapping effect is better than splayed net cage sand barrier, because having, fills at the husky bag end by outstanding bag shape high vertical sediment trapping net, weather-proof effect is better than splayed net cage sand barrier, can not blown and turn over from the base erosion of net by strong wind.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is the defect that overcomes prior art, the constructing structure of existing high vertical sediment trapping net, hang as curtain from single width, the outstanding bag shape high vertical sediment trapping net of the mesh bag shape that Desert Sand hangs up is housed at the bottom of changing over bag, make sediment trapping netting gear have front wire side and rear wire side, can drift sand interception in desert hanged in the middle of bag two wire sides of shape high vertical sediment trapping net and the both sides, front and back of sediment trapping net; Sand drift suppression is arranged at the bottom of net, and sediment trapping net can not blown down from the base erosion of net by strong wind.
Sediment trapping net of the present invention be wide cut between 120cm to 350cm, the plastic wire of degree of porosity between 45% to 55%.
The construction method of outstanding bag shape high vertical sediment trapping net check dam, it is characterized in that: the direction vertical with prevailing wind direction on desert, pile and erect one height at the sand bar between 90cm to 250cm with loader, the top horizontal of sand bar is made into the platform of width between 80cm to 200cm, on platform, dig Yi Tiaogou, the width of ditch is between 30cm to 70cm, and the degree of depth is between 15cm to 50cm; Select wide cut at the sediment trapping net between 100cm to 350cm according to the width of ditch and the degree of depth, ditch sediment trapping net on sand bar platform is spread out and put on, the center line of sediment trapping net is corresponding with bottom of trench, get the batten of length between 70cm to 230cm sediment trapping net is pressed into bottom of trench, batten inserts in the sand of bottom of trench after vertically piercing through sediment trapping net, the batten degree of depth in insertion sand, between 30cm to 70cm, is fixed on batten in ditch, becomes a support for outstanding bag shape high vertical sediment trapping net; A support of interval 1M to 2M construction in the ditch of having spread out and put on sediment trapping net, between support, connection is tightened by an iron wire in top one by one, to strengthen the stability of support left and right directions; Desert sand drift near getting is pressed in sediment trapping and on the net ditch is filled up, the top margin tendency of then the sediment trapping net of ditch both sides upwards being propped up, tighten, being netted is propped up top of the trellis also and a top of the trellis connects fixing, interval 30cm to 50cm connects the top margin of both sides sediment trapping net and iron wire fixing again, form outstanding bag shape high vertical sediment trapping net, outstanding bag shape high vertical sediment trapping net and sand bar are combined into outstanding bag shape high vertical sediment trapping net check dam.
Accompanying drawing explanation
Fig. 1 is that the construction method master of the outstanding bag of the present invention shape high vertical sediment trapping net check dam looks schematic cross-section;
In accompanying drawing: 1, an outstanding bag shape high vertical sediment trapping net, 2, support, 3, iron wire, 4, Desert Sand, 5, an outstanding bag shape high vertical sediment trapping net check dam.
The specific embodiment
Now in conjunction with Figure of description, the invention will be further described: sediment trapping net of the present invention be wide cut between 15cm to 50cm, the plastic wire of degree of porosity between 45% to 55%.
As shown in Figure 1, the construction method of outstanding bag shape high vertical sediment trapping net check dam, it is characterized in that: the direction vertical with prevailing wind direction on desert, pile and erect one height at the sand bar between 90cm to 250cm with loader, the top horizontal of sand bar is made into the platform of width between 80cm to 200cm, on platform, dig Yi Tiaogou, the width of ditch is between 30cm to 70cm, and the degree of depth is between 15cm to 50cm; Select wide cut at the sediment trapping net between 100cm to 350cm according to the width of ditch and the degree of depth, ditch sediment trapping net on sand bar platform is spread out and put on, the center line of sediment trapping net is corresponding with bottom of trench, get the batten of length between 70cm to 230cm sediment trapping net is pressed into bottom of trench, batten inserts in the sand of bottom of trench after vertically piercing through sediment trapping net, the batten degree of depth in insertion sand, between 30cm to 70cm, is fixed on batten in ditch, becomes a support 2 for outstanding bag shape high vertical sediment trapping net; A support of interval 1M to 2M construction in the ditch of having spread out and put on sediment trapping net, between support, connection is tightened by an iron wire 3 in top one by one, to strengthen the stability of support left and right directions; Desert Sand 4 heaps near getting are pressed in sediment trapping and on the net ditch are filled up, the top margin tendency of then the sediment trapping net of ditch both sides upwards being propped up, tighten, being netted is propped up top of the trellis also and a top of the trellis connects fixing, interval 30cm to 50cm connects the top margin of both sides sediment trapping net and iron wire 3 fixing again, form outstanding bag shape high vertical sediment trapping net 1, outstanding bag shape high vertical sediment trapping net and sand bar are combined into outstanding bag shape high vertical sediment trapping net check dam 5.
The available mechanization of sediment trapping net of the present invention is produced in enormous quantities, and outstanding bag shape high vertical sediment trapping net check dam can be constructed on a large scale with mechanization on desert.
Claims (1)
1. the construction method of an outstanding bag shape high vertical sediment trapping net check dam, it is characterized in that: the direction vertical with prevailing wind direction on desert, pile and erect one height at the sand bar between 90cm to 250cm with loader, the top horizontal of sand bar is made into the platform of width between 80cm to 200cm, on platform, dig Yi Tiaogou, the width of ditch is between 30cm to 70cm, and the degree of depth is between 15cm to 50cm; Select wide cut at the sediment trapping net between 100cm to 350cm according to the width of ditch and the degree of depth, ditch sediment trapping net on sand bar platform is spread out and put on, the center line of sediment trapping net is corresponding with bottom of trench, get the batten of length between 70cm to 230cm sediment trapping net is pressed into bottom of trench, batten inserts in the sand of bottom of trench after vertically piercing through sediment trapping net, the batten degree of depth in insertion sand, between 30cm to 70cm, is fixed on batten in ditch, becomes a support for outstanding bag shape high vertical sediment trapping net; A support of interval 1M to 2M construction in the ditch of having spread out and put on sediment trapping net, between support, connection is tightened by an iron wire in top one by one, to strengthen the stability of support left and right directions; Desert sand drift near getting is pressed in sediment trapping and on the net ditch is filled up, then the sediment trapping net of ditch both sides is upwards propped up, tightened, a top margin tendency top of the trellis of net also connects fixing with a top of the trellis, interval 30cm to 50cm connects the top margin of both sides sediment trapping net and iron wire fixing again, form outstanding bag shape high vertical sediment trapping net, outstanding bag shape high vertical sediment trapping net and sand bar are combined into outstanding bag shape 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 |
|---|---|---|---|
| CN201310524933.6A CN103556617B (en) | 2013-10-20 | 2013-10-20 | Outstanding bag shape high vertical sediment trapping net and construction method thereof |
| CN201410038911.3A CN103774635B (en) | 2013-10-20 | 2013-10-20 | The construction method of outstanding pouch-shaped high vertical sediment trapping net check dam |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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| CN103774635A true CN103774635A (en) | 2014-05-07 |
| CN103774635B CN103774635B (en) | 2017-11-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| US20020141830A1 (en) * | 2001-04-02 | 2002-10-03 | Root Melvin Robert | 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 |
| 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 |
| 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 |
| CN102373676A (en) * | 2009-05-12 | 2012-03-14 | 娄志平 | High vertical reverse Y-shaped net cage sand barrier and construction method thereof |
| CN102535428A (en) * | 2009-12-11 | 2012-07-04 | 谢爱良 | Method for baffling sands by integrated splayed sand-baffle screen |
| CN102587301A (en) * | 2012-03-31 | 2012-07-18 | 成都航发边坡防护工程有限公司 | Double-layer flexible windproof net |
-
2013
- 2013-10-20 CN CN201410038911.3A patent/CN103774635B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020141830A1 (en) * | 2001-04-02 | 2002-10-03 | Root Melvin Robert | 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 |
| CN102587301A (en) * | 2012-03-31 | 2012-07-18 | 成都航发边坡防护工程有限公司 | Double-layer flexible windproof net |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN103774635B (en) | 2017-11-07 |
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