CN102926372A - Embedded type sediment trapping net sediment storage dam and construction method thereof - Google Patents
Embedded type sediment trapping net sediment storage dam and construction method thereof Download PDFInfo
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- CN102926372A CN102926372A CN 201210443576 CN201210443576A CN102926372A CN 102926372 A CN102926372 A CN 102926372A CN 201210443576 CN201210443576 CN 201210443576 CN 201210443576 A CN201210443576 A CN 201210443576A CN 102926372 A CN102926372 A CN 102926372A
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- check dam
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Abstract
The invention aims at providing an embedded type sediment trapping net sediment storage dam and a construction method thereof, which belong to the technical field of sand-control engineering, and aim at overcoming the defect in the prior art by utilizing the natural characteristic that sand upwardly flow. A high vertical sediment trapping net which is constructed by adopting a support to support a plastic net is not supported by the support, desert sand on the spot is built into a sediment storage dam which has a height between 100cm and 300cm, and the sediment trapping net is embedded on the lower surface of the surface of the sediment trapping dam during the construction process to form the embedded type sediment trapping net sediment storage dam. The sediment trapping net is a plastic net which has a width between 40cm and 450cm.
Description
Technical field
The present invention relates to the sand control engineering technical field, be specially and spread embedded sediment trapping net check dam and job practices thereof.
Background technology
At present, in desert treatment, be widely used plastic wire construction high vertical sediment trapping net, the interception in enforcement flow desert and fixing, above-mentioned job practices must be prepared the support that matches and support the sediment trapping net, because high vertical sediment trapping net will stand to expose to the weather, tensile strength and anti-aging requirement of strength to the sediment trapping net are very high, therefore not only material cost is high, and transportation and construction cost are also high, is also easily blown down by strong wind and loses efficacy; Therefore, invent a kind of cost of manufacture cheap, need not shop embedded sediment trapping net check dam and job practices thereof that support, easy construction, sediment trapping, sand-fixing effect are better than high vertical sediment trapping net, be the needs of desert treatment.
To disclosure of an invention
Technical solution
The technical assignment of the technical problem to be solved in the present invention and proposition is the defective that overcomes prior art, the existing stent support plastic wire construction high vertical sediment trapping net of using, change over without stent support, but Desert Sand is on the spot built up height at the check dam of 100cm to 300cm with the loader heap, build in the process of check dam at heap, on the check dam core of sediment trapping net laying stand potting below the check dam top layer, consist of shop embedded sediment trapping net check dam.; Spread embedded sediment trapping net check dam and just become tall and big mechanical sand barrier, its sediment trapping effect is better than the high vertical sediment trapping net of equal height, cost is lower than high vertical sediment trapping net, and, spread the height that embedded sediment trapping net check dam can be constructed, be that high vertical sediment trapping net is beyond one's reach.
The applicant has delivered " the fixing and utilizations of moving dunes " in 2009, in article, illustrated the principle on splayed net cage sand barrier fixed flow sand dune, illustrated simultaneously after the moving dunes top arranges splayed net cage sand barrier, because husky characteristic toward eminence stream, tall and big moving dunes have just become tall and big mechanical sand barrier, therefore the mechanical sand barrier on the textbook are hindered husky effect formula V=4.5H
2Sin a (formula I) is modified as V=4.5H
2+ [H1+H
2] 2sin a (formula 2); In (formula 1), V is the husky amount of resistance, and H is 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 the height of moving dunes windward slope, and H2 is the height of moving dunes leeward slope, and a is the angle of cut.Because splayed net cage sand barrier exposes the top of moving dunes less than 15cm, if apply mechanically the formula on the textbook, place the splayed net cage sand barrier at moving dunes top, it is very little hindering husky effect, but in fact expose top of sand dune less than the splayed net cage sand barrier of 15cm, owing to there being the moving dunes under the cylinder mould sand barrier to make liner, its hinder husky effect be higher than far away be arranged on the smooth desert, height is greater than the high vertical sediment trapping net of 150cm.Therefore (formula 1) is inapplicable in the husky effect of the resistance of the splayed net cage sand barrier at moving dunes top to constructing, and must just can describe the problem with (formula 2).After the moving dunes top arranges splayed net cage sand barrier, tackled the drift sand that gets off by splayed net cage sand barrier and be deposited in top of sand dune, by promoting splayed net cage sand barrier, make the lifting that makes progress of moving dunes top, moving dunes just no longer move forward, harmful moving dunes just become useful mechanical sand barrier, and so the mechanical sand barrier of height is can't accomplish with the high vertical sediment trapping net that any method makes up.Thereby the function that has shown the efficient intercepting of moving dunes desert.But the mechanical sand barrier that so efficiently is easy to get on the desert also is not familiar with by people at present, fails so far to find in textbook correlation theory and experimental data.What introduce on the textbook is the waist that high vertical sand barrier is arranged on moving dunes, reaches the purpose of scabbling moving dunes, and people still process moving dunes as disaster so far.So the applicant is managing by engineering practice, prove that moving dunes are to be transformed into tall and big mechanical sand barrier; The desert drift sand is the material that can be used as sediment trapping engineering, dune work.
Spread embedded sediment trapping net check dam and job practices thereof, out job practices that to be the applicant explore from the construction splayed net cage sand barrier is constructed the engineering practice of check dam, the check dam of constructing with the method, firmness and sediment trapping effect are better than high vertical sediment trapping net, and material cost and construction cost are more much lower than the high vertical sediment trapping net of construction equal height.
The present invention adopts following technical scheme:
Sediment trapping net of the present invention be wide cut between 100cm to 450cm, the plastic wire of degree of porosity between 35% to 55%.
The present invention spreads embedded sediment trapping net check dam, be built up by the desert sand drift on the desert height the check dam between the 100cm to 300cm and potting in check dam, the sediment trapping net of height on the check dam core between the 60cm to 250cm is domatic combine.
The first job practices that the present invention spreads embedded sediment trapping net check dam is: the direction vertical with prevailing wind direction on the desert, select the route of high-land, erect one height in the check dam core between the 60cm to 250cm with the loader heap, height according to the check dam core, select the sediment trapping net laying of wide cut between 100cm to 450cm to be spread out on the windward slope of check dam core, 10cm to 80cm is extended in the place ahead at the bottom of the windward slope, the base of sediment trapping net, and the top margin of sediment trapping net climbs over check dam core top, pasting leeward slope to downward-extension 20cm to 150cm; Then use loader near Desert Sand, from the base of check dam core, upwards heap is built Desert Sand, make check dam reach height between the 100cm to 300cm, the leeward slope gradient of check dam is as the criterion with the angle of repose of moving dunes, and the gradient heap of windward slope builds up less than the angle of repose.The present invention spreads the embedded sediment trapping net check dam sediment trapping that can desert less in husky source, that wind-force is larger keeps out the wind.
The second job practices that the present invention spreads embedded sediment trapping net check dam is: the direction vertical with prevailing wind direction on the desert, select the route of high-land, erect one height in the check dam core between the 60cm to 250cm with the loader heap, height according to the check dam core, select the sediment trapping net laying of wide cut between 40cm to 150cm to be spread out in the windward slope top of check dam core, the top margin of sediment trapping net climb over the check dam core the top, pasting leeward slope to downward-extension 10cm to 50cm; Then use loader near Desert Sand, from the base of check dam core, upwards heap is built Desert Sand, make check dam reach height between the 100cm to 300cm, the leeward slope gradient of check dam is as the criterion with the angle of repose of moving dunes, and the gradient heap of windward slope builds up less than the angle of repose.The present invention spreads the embedded sediment trapping net check dam sediment trapping that is applicable to keep out the wind in the abundant desert of Sha Yuan.
Beneficial effect
Use the material that the present invention can become the desert drift sand sediment trapping engineering, dune work; Can become tall and big mechanical sand barrier to moving dunes with the present invention at the moving dunes top; Can use the present invention in the desert and construct the effectively check dam in intercepting desert; Use the present invention's check dam that can railway, both sides of highway construction on Gobi desert and desert keeps out the wind, make roadbed and vehicle exempt from the dust storm invasion and attack; Using the present invention can be at the two sides, river course in the desert of the flowing through construction check dam that keeps out the wind, and interception stops the desert drift sand to invade the river; Use the present invention and can at the check dam that keeps out the wind near desert De Cun Zhuang, the peripheral construction in field, stop the intrusion of desert drift sand.
Description of drawings
Fig. 1 is that the present invention spreads an embedded sediment trapping net left side and looks schematic diagram;
Fig. 2 is that the present invention spreads embedded sediment trapping host and looks schematic diagram;
Fig. 3 is that the present invention spreads embedded sediment trapping net check dam schematic cross-section;
Fig. 4 is that the present invention spreads embedded sediment trapping net check dam schematic cross-section.
In the accompanying drawing: 1, sediment trapping net, 2, Desert Sand, 3, spread embedded sediment trapping net check dam, 4, the check dam core.
Embodiments of the present invention
Now the invention will be further described in conjunction with Figure of description: sediment trapping net of the present invention be wide cut between the 40cm to 450cm, the plastic wire of degree of porosity between 35% to 55%.
Such as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the present invention spreads embedded sediment trapping net check dam, by Desert Sand 2 heaps build up height at the check dam 3 between the 100cm to 300cm and spread be embedded in the check dam, the sediment trapping net 1 of height on the check dam core 4 between the 60cm to 250cm is domatic combine.
As shown in Figure 3, the job practices that the present invention spreads embedded sediment trapping net check dam is: the direction vertical with prevailing wind direction on the desert, select the route of high-land, erect one height in the check dam core 4 between the 60cm to 250cm with the loader heap, height according to the check dam core, select the sediment trapping net 1 of wide cut between 100cm to 450cm to spread out and put on the windward slope of check dam core, 10cm to 80cm is extended in the place ahead at the bottom of the windward slope, the base of sediment trapping net, the top margin of sediment trapping net climbs over check dam core top, is pasting leeward slope to downward-extension 20cm to 150cm; Then use loader near Desert Sand, from the base of check dam core, upwards heap is built Desert Sand 2, make check dam 3 reach height between the 100cm to 300cm, the leeward slope gradient of check dam is as the criterion with the angle of repose of moving dunes, and the gradient heap of windward slope builds up less than the angle of repose.The such shop embedded sediment trapping net check dam of the construction sediment trapping that can desert less in husky source, that wind-force is larger keeps out the wind.
As shown in Figure 4, the second job practices that the present invention spreads embedded sediment trapping net check dam is: the direction vertical with prevailing wind direction on the desert, select the route of high-land, erect one height in the check dam core 4 between the 60cm to 250cm with the loader heap, height according to the check dam core, the sediment trapping net 1 of selection wide cut between 40cm to 150cm spread out and put on the windward slope top in the check dam core, and the top margin of sediment trapping net climbs over the top of check dam core, is pasting leeward slope to downward-extension 10cm to 50cm; Then use loader near Desert Sand 2, from the base of check dam core, upwards heap is built Desert Sand, make check dam 3 reach height between the 100cm to 300cm, the leeward slope gradient of check dam is as the criterion with the angle of repose of moving dunes, and the gradient heap of windward slope builds up less than the angle of repose.The such shop embedded sediment trapping net check dam of the construction sediment trapping that is applicable to keep out the wind in the abundant desert of Sha Yuan.
The available mechanization of sediment trapping net of the present invention is produced in enormous quantities, can spread embedded sediment trapping net check dam with mechanized construction on the desert.
Claims (3)
1. spread embedded sediment trapping net check dam, it is characterized in that: spread embedded sediment trapping net check dam and built up by the desert sand drift that height is embedded in the check dam at the check dam between the 100cm to 300cm and shop, the sediment trapping net of height on the check dam core between the 60cm to 250cm is domatic combines.
2. spread the first job practices of embedded sediment trapping net check dam, it is characterized in that: the direction vertical with prevailing wind direction on the desert, select the route of high-land, erect one height in the check dam core between the 60cm to 250cm with the loader heap, height according to the check dam core, select the sediment trapping net laying of wide cut between 100cm to 450cm to be spread out on the windward slope of check dam core, 10cm to 80cm is extended in the place ahead at the bottom of the windward slope, the base of sediment trapping net, the top margin of sediment trapping net climbs over check dam core top, is pasting leeward slope to downward-extension 20cm to 150cm; Then use loader near Desert Sand, from the base of check dam core, upwards heap is built Desert Sand, make check dam reach height between the 100cm to 300cm, the leeward slope gradient of check dam is as the criterion with the angle of repose of moving dunes, and the gradient heap of windward slope builds up less than the angle of repose.
3. spread the second job practices of embedded sediment trapping net check dam, it is characterized in that: the direction vertical with prevailing wind direction on the desert, select the route of high-land, erect one height in the check dam core between the 60cm to 250cm with the loader heap, height according to the check dam core, select the sediment trapping net laying of wide cut between 40cm to 150cm to be spread out in the windward slope top of check dam core, the top margin of sediment trapping net climb over the check dam core the top, pasting leeward slope to downward-extension 10cm to 50cm; Then use loader near Desert Sand, from the base of check dam core, upwards heap is built Desert Sand, make check dam reach height between the 100cm to 300cm, the leeward slope gradient of check dam is as the criterion with the angle of repose of moving dunes, and the gradient heap of windward slope builds up less than the angle of repose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210443576 CN102926372A (en) | 2012-10-30 | 2012-10-30 | Embedded type sediment trapping net sediment storage dam and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210443576 CN102926372A (en) | 2012-10-30 | 2012-10-30 | Embedded type sediment trapping net sediment storage dam and construction method thereof |
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| CN102926372A true CN102926372A (en) | 2013-02-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835279A (en) * | 2013-10-20 | 2014-06-04 | 娄志平 | Construction method of hung-bag-shaped high vertical sediment retaining net fixing mobile dune |
| 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 |
-
2012
- 2012-10-30 CN CN 201210443576 patent/CN102926372A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835279A (en) * | 2013-10-20 | 2014-06-04 | 娄志平 | Construction method of hung-bag-shaped high vertical sediment retaining net fixing mobile dune |
| CN103835279B (en) * | 2013-10-20 | 2017-03-29 | 娄志平 | Outstanding pouch-shaped high vertical sediment trapping net fixes the construction method of moving dunes |
| 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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Application publication date: 20130213 |