CN203080506U

CN203080506U - Embedded splay sand-blocking net sand-blocking bank and construction structure thereof

Info

Publication number: CN203080506U
Application number: CN 201320079957
Authority: CN
Inventors: 娄志平
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-02
Filing date: 2013-02-02
Publication date: 2013-07-24
Anticipated expiration: 2023-02-02

Abstract

The utility model aims at providing an embedded splay sand-blocking net sand-blocking bank and a construction structure of the embedded splay sand-blocking net sand-blocking bank, belonging to the technical field of desertification control projects. Utilizing the natural characteristic that sand flows to higher places, the shortcomings of the prior art are overcome, and the onsite desert sandpiles are used to built the embedded splay sand-blocking net sand-blocking bank; the embedded splay sand-blocking net sand-blocking bank is formed by combining a sand-blocking bank with a height between 100cm and 300cm built with the onsite desert sandpiles, and a sand-blocking net which is splay and embedded underneath the top of the sand-blocking bank and on the top of a sand-blocking bank core with the height of 80cm to 270cm; the top of the sand-blocking bank core built from desert sand is a bracket supporting the splay sand-blocking net, so that the onsite desert sand becomes a supporting material of a sand-blocking project; and the aim of substantially reducing the cost of the sand-blocking project under the condition that the sand-blocking effect is not affected is achieved.

Description

Shop embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof

Technical field

The utility model relates to the sand control engineering technical field, is specially shop embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof.

Background technology

At present, in desert treatment, plastic wire construction net grid and high vertical sediment trapping net have been extensive use of, enforcement is to the interception in the desert of flowing and fixing, above-mentioned job practices must be prepared the support that matches and support the sediment trapping net, therefore material cost height not only, transportation and construction cost are also high, especially high vertical sediment trapping net, not only support is required very highly, also blown down by strong wind easily and lost efficacy, therefore, it is cheap to invent a kind of cost of manufacture, need not support, easy construction, the sediment trapping sand-fixing effect is spread embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof significantly, has been the needs of desert treatment.

Technical solution

The technical assignment of the technical problems to be solved in the utility model and proposition is the defective that overcomes prior art, the existing sand-protecting barriers such as stent support sediment trapping net construction net grid and high vertical sediment trapping net of using, change over without stent support, but build up check dam with desert sand drift on the spot, sediment trapping net shop be embedded in the check dam top below, with husky shop embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof as support.

Shop embedding formula figure eight-shaped sand blocking mesh check dam, be mode with the shop embedding sediment trapping net potting below the check dam top, be to become splay sediment trapping net and check dam to constitute by the shop embedding; This shop embedding formula figure eight-shaped sand blocking mesh check dam can be used to tackle mobile desert.

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 is provided with 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 ²Sina (formula I) is modified as V=4.5H ²+ [H1+H2] ²Sina (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 the splayed net cage sand barrier of top of sand dune less than 15cm, owing to there are the moving dunes under the cylinder mould sand-protecting 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 say something with (formula 2).After the moving dunes top is provided with 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 shown that moving dunes tackle the function in the desert of flowing efficiently.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 to find in textbook correlation theory and experimental data so far.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 handle moving dunes as disaster so far.So the applicant is managing by engineering practice, prove that moving dunes can be transformed into mechanical sand barrier very convenient, very simply, the drift sand on the desert can be built into check dam.

Shop embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof, be the applicant from the construction splayed net cage sand barrier constructing structure that fixedly exploration is come out the engineering practice of moving dunes and splayed net cage sand barrier check dam, its effect of fixing the desert of flowing is identical with the splayed net cage sand barrier check dam, owing to omitted support, material cost and construction cost reduce significantly.

The utility model adopts following technical scheme:

Shop embedding formula figure eight-shaped sand blocking mesh described in the utility model be wide cut between 50cm to 100cm, the plastic wire of degree of porosity between 35% to 55%, weedtree fiber boom net and cotton stalk fiber grid block.

The utility model shop embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof, it is characterized in that: shop embedding formula figure eight-shaped sand blocking mesh check dam by height between the 100cm to 300cm, the check dam that builds up with on the spot desert sand drift and be that the splayed shop is embedded in below the check dam top, check dam core top, wide cut the sediment trapping net 50cm to 200cm between of height between 80cm to 270cm constitutes; By the check dam core top that desert sand builds up, become and support the support be splay sediment trapping net, make on the spot desert sand become the backing material of sediment trapping engineering; Reach the purpose that under the prerequisite that does not influence the sediment trapping effect, reduces the sediment trapping engineering cost significantly.

Beneficial effect

Use the utility model and can on the desert of flowing, construct high check dam, make on the spot desert sand become the backing material of sediment trapping engineering, make the interception desert of flowing become economical, simple, conveniently from difficulty with desert sand on the spot.

Description of drawings

Fig. 1 looks schematic diagram for the utility model sediment trapping net left side;

Fig. 2 looks schematic diagram for the utility model sediment trapping host;

Fig. 3 is the utility model potting formula sediment trapping net check dam schematic cross-section;

In the accompanying drawing: 1, sediment trapping net, 2, desert sand, 3, the core of shop embedding formula figure eight-shaped sand blocking mesh check dam, 4, shop embedding formula figure eight-shaped sand blocking mesh check dam

Embodiment of the present utility model

Now the utility model is further described in conjunction with Figure of description: as shown in Figure 1, 2, sediment trapping net 1 described in the utility model be wide cut between 50cm to 100cm, plastic wire, weedtree fiber boom net, the cotton stalk fiber boom net of degree of porosity between 35% to 55%.

The implementation process of shop embedding formula figure eight-shaped sand blocking mesh check dam is: erect the check dam core 3 of height at 80cm to 270cm with the loader heap earlier, wide cut at the sediment trapping net 1 between the 50cm to 200cm, be splayed and spread out and put on top in the check dam core, the sediment trapping net simultaneously is splayed and extends along the top of check dam core, one side is deposited in desert sand 2 with loader the both sides of the figure eight-shaped sand blocking mesh of having spread out and put on, top with the check dam core is a center line, heap is erected the check dam of height between 100cm to 300cm, like this, be splay sediment trapping net 1 and be pressed in the top of check dam core 3, constitute shop embedding formula figure eight-shaped sand blocking mesh check dam 4 by the desert sand 2 more than the thickness 20cm.When strong wind blows to leeward slope to the sand above the check dam core top, the top of exposing figure eight-shaped sand blocking mesh, shop embedding formula figure eight-shaped sand blocking mesh is under the support of check dam core, become splayed net cage sand barrier, can effectively stop the erosion of strong wind to the check dam core, just can pile up the leeward slope of sealing up for safekeeping at shop embedding formula figure eight-shaped sand blocking mesh check dam, reach the purpose in the mobile desert of interception effectively the desert sand that is blowed by strong wind.

Claims

1. spread embedding formula figure eight-shaped sand blocking mesh check dam and constructing structure thereof, it is characterized in that: shop embedding formula figure eight-shaped sand blocking mesh check dam by height between the 100cm to 300cm, the check dam that builds up with on the spot desert sand drift and be that the splayed shop is embedded in below the check dam top, the sediment trapping net at the check dam core top of height between 80cm to 270cm constitutes; By the check dam core top that desert sand builds up, become and support the support that is splay sediment trapping net.