CN205134213U - Gather wind formula and prevent wind husky wall of fender - Google Patents
Gather wind formula and prevent wind husky wall of fender Download PDFInfo
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- CN205134213U CN205134213U CN201520922711.4U CN201520922711U CN205134213U CN 205134213 U CN205134213 U CN 205134213U CN 201520922711 U CN201520922711 U CN 201520922711U CN 205134213 U CN205134213 U CN 205134213U
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- wind
- sand
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- aerofoil
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Abstract
The utility model provides a gather wind formula and prevent wind husky wall of fender, including two stands setting up side by side, set up between two stands and gather aerofoil and deep bead, it has the space to gather between aerofoil and the deep bead, the stand top, gather aerofoil top and deep bead top looks parallel and level, gathers under the aerofoil position that the position of terminal surface is higher than terminal surface under the deep bead. Should prevent wind keep off husky wall simultaneously the high efficiency compromise the sand prevention and prevent wind, has broken away from original preventing wind and has kept off the husky device high -efficient shortcoming of preventing wind with the sand prevention of compromising simultaneously. Can weaken the air speed that keeps off husky wall crown portion with the help of the wind space of gathering of self, reduce the quantity that wind -break wall was jumped to the grains of sand, improve sand prevention efficiency. But assembled structure, fast, the simple and convenient batch production of construction of installation rate.
Description
Technical field
The utility model belongs to engineering sand storm protection technical field, relates to a kind of wind-proofing sand-blocking facility, particularly a kind of gathering type wind wind-proofing sand-blocking wall.
Background technology
Wind erosion and aeolian accumulation are the basic expressions forms of arid and semi-arid lands's wind-sand activity, and it has not only moulded the surface configuration of desert area, and bring serious threat to the production of people and life.As wind carries the visibility that sand material reduces air, affect communications and transportation, destroy plant and electric wire, wearing and tearing building and machine, deflation soil surface organic matter, reduce soil nutrient elements etc.Due to global warming and mankind's activity aggravation, increasing soil becomes open ground, exacerbates the Desertification Process of arid and semi-arid lands.Desertification and sandstorm are the great environmental problem affecting the northern area of China, bring not only to resident's productive life that is local and adjoining area and have a strong impact on, and Road Transportation in serious threat.
For the invasion and attack of dust storm, scholars propose different measures for sand prevention, mainly comprise plant sand prevention and mechanical sand prevention.Biological sand prevention is a kind of permanent sand storm protection pattern reliably, the cultivation in plant protection forest belt, passage winds sand drift can not only be tackled, control plays sand on the spot, the ecological environment of zonule can also be improved, but it requires comparatively harsh to natural environment, the place application can only survived plant, has region limitation.Mechanical sand prevention does not then have region to limit, and can use anywhere, but has cumulative bad due to sand, causes it ageing shorter yet.
People it is envisioned that stop the paces advanced in sand dune the earliest.The most ancient safeguard procedures lay non-ventiation type together in the place that hazards of sand storms is strong to hinder the barrier that rustles, and stops drift sand reach.Its resistance sand plain reason is exactly the feature utilizing sand-protecting barrier surrounding flow speed to redistribute, and destroys the equilibrium state of sand-protecting barrier ambient wind sand drift, makes the part grains of sand be deposited on around sand-protecting barrier, play the effect of purification stream, thus reach the object of sand prevention.But early stage people are little to the research of stream mechanics, the grains of sand advance just to utilize merely sand dike to stop, do not consider the impact of sand-protecting barrier on air-flow, cause sediment control structure efficiency very low.Along with the continuous understanding to the stream characteristics of motion; sand prevention workers recognize the existing decay area of sand-protecting barrier surrounding flow VELOCITY DISTRIBUTION gradually; also reinforcement district is had; velocity attenuation district in sand-protecting barrier altitude range can make the grains of sand deposit; but the speed at top strengthens Qu Zeke makes the grains of sand accelerate to jump over sand-protecting barrier; continue with air motion, cause protected area sand damage still comparatively serious.For improving the sand prevention efficiency of sediment control structure, reduce construction costs, sand prevention workers start to attempt adopting ventiation type sand-protecting barrier in recent years, and large-area applications is in engineering practice, achieves good effect, and compared with non-ventiation type sand-protecting barrier, cost performance increases substantially.But above-mentioned engineering can only be applied to the area that sand damage is greater than windburn, Desert Area (wind-force can reach 60m/s more than) these measures powerful at wind-force just seem awkward, because for sand damage, the impact of powerful strong wind on road transport had and without too late.Such as, just creating one in Lanzhou-Xinjiang high-speed railway sand storm protection process is problem, in order to ensure that train is not turned over by large wind, non-ventiation type windbreak has been built at curb, but strengthen district because sand stop wall top exists air-flow, the major part grains of sand jump over windbreak deposition on the line, and the safe operation of train in serious threat, and if adopt ventiation type windbreak, although sand prevention efficiency improves greatly, train is turned over probability by large wind and sharply rises.For the problems referred to above, we have proposed a kind of new and effective gathering type wind wind-proofing sand-blocking wall.
Summary of the invention
The purpose of this utility model be to provide a kind of can sand prevention again can be windproof gathering type wind wind-proofing sand-blocking wall, adopt separately a kind of facility just effectively can take into account the problem of checking the wind and fixing the shifting sand in gale desert district.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of gathering type wind wind-proofing sand-blocking wall, comprise two root posts be arranged side by side, wind gathering plate and verge board are set between two root posts, space is had between wind gathering plate and verge board, column top, wind gathering plate top are mutually concordant with verge board top, and the position of wind gathering plate lower surface is higher than the position of verge board lower surface.
The utility model wind-proofing sand-blocking wall tool has the following advantages:
1) sand prevention can be taken into account efficiently windproof simultaneously, break away from original wind-proofing sand-blocking device can not efficiently take into account windproof and shortcoming that is sand prevention simultaneously.
2) air velocity at sand stop wall top can be weakened by the wind gathering hole of self, reduce the grains of sand and to jump over the quantity of windbreak, improve sand prevention efficiency.
3) fast, the easy construction of modular construction, installation rate, can be mass.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model wind-proofing sand-blocking wall.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A-A sectional view of Fig. 1.
Fig. 4 is the schematic diagram of wind gathering plate in the utility model wind-proofing sand-blocking wall.
Fig. 5 is the left view of Fig. 4.
Fig. 6 is the air-flow composite diagram that two parts air-flow produced after stream runs into the utility model wind-proofing sand-blocking wall synthesizes air-flow.
Fig. 7 is along journey wind speed variation tendency with apart from 0.1m place, the utility model wind-proofing sand-blocking wall top along journey wind speed variation tendency comparison diagram apart from 0.1m place, existing windbreak top.
In figure: 1. column, 2. wind gathering plate, 3. verge board, 4. wind gathering plate body, 5. inclined-plane.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
As shown in Figure 1, Figure 2 and Figure 3, the utility model wind-proofing sand-blocking wall, comprise between two root post 1, two root posts 1 that are arranged side by side and be arranged with wind gathering plate 2 and verge board 3 in parallel, have space between wind gathering plate 2 and verge board 3, this space is narrow tubular wind gathering hole; Wind gathering plate 2 is connected with two root posts 1 respectively towards the both sides of column 1, and verge board 3 is connected with two root posts 1 respectively towards the both sides of column 1; Column 1 top, wind gathering plate 2 top are mutually concordant with verge board 3 top, and the position of wind gathering plate 2 lower surface is higher than the position of verge board 3 lower surface, and the position of verge board 3 lower surface is higher than the position of column 1 lower surface.
As shown in Figure 4 and Figure 5, the wind gathering plate 2 in the utility model wind-proofing sand-blocking wall, comprise the wind gathering plate body 4 of cuboid, wind gathering plate body 4 is processed with inclined-plane 5 towards the middle part of verge board 3 end face lower end.
Column 1 is by integrally reinforced concrete prefabricated, for the ease of mounting block aerofoil 3 and wind gathering plate 2, when making column 1, a sidewall of column 1 be arranged in parallel two mutual disjunct draw-in grooves, the length of one clamp bar slot and the height of wind gathering plate 2 suitable, the length of another clamp bar slot and the height of verge board 3 suitable.Verge board 3 is the cuboid of reinforced concrete prefabricated one-tenth.Wind gathering plate 2 is reinforced concrete prefabricated board.
When the utility model wind-proofing sand-blocking wall is installed, dig column 1 installation pit in the infield of specifying, then, built in this installation pit column 1 lower end, make wind gathering plate 2 towards windward side, verge board 3 is positioned at leeward side, and verge board 3 lower surface close proximity to ground, see Fig. 3.
Air-flow is the dynamic condition that stream is formed, and is also the key index determining stream motion state.Be that the stream of saturation state is described for example with primary condition: when the air velocity in stream remains unchanged, stream is non-stacking carrying state, and the grains of sand quantity of namely jumping up in stream equals the quantity fallen; When decay appears in air velocity, the husky ability of taking of air-flow declines, and stream is aeolian accumulation state, and the grains of sand of namely jumping up in stream are less than the quantity fallen, and aeolian accumulation phenomenon occurs on ground; When strengthening appears in air velocity, the husky ability of taking of air-flow improves, and stream is wind erosion state, and the grains of sand of namely jumping up in stream are greater than the quantity fallen, and wind erosion phenomenon occurs on ground.Sand-prevention engineering utilizes sand-protecting barrier to change the state of stream to carry out sand prevention.
If adopt existing sand-protecting barrier, when namely carrying out sand-prevention engineering with common windbreak, during stream approach windbreak, its speed redistributes, and is broadly divided into three regions:
1) deceleration area
Forming part: windbreak windward side 1.5H ~ 3H, H are Height of Wind Break Wall.
Crack cause: the inhibition of windbreak.
2) accelerating region
Forming part: windbreak top 0.1m ~ 1m.
Crack cause: flow section reduces, and air-flow is compressed, and speed is strengthened.
3) turbulent region
Forming part: windbreak leeward side 15H ~ 20H.
Crack cause: flow section increases, and air-flow is separated, forms vortex.
Ordinary circumstance, deceleration area and turbulent region belong to air velocity decay area, especially turbulent region, and air velocity attenuation amplitude can reach 70 ~ 85%.Windbreak is generally arranged on upwind curb place, and circuit is in turbulent region, when train enters wind district, all the time turbulent region run, windbreak the difficult problem effectively solving train and turned over by large wind in wind district is set.But in the Desert Regions that wind-force is powerful; strong wind weather very easily forms high wind sand drift; although windbreak can weaken the air velocity of leeward side turbulent region, there is air-flow accelerating region in sand stop wall top, and the part grains of sand can be accelerated air-flow carrying sand stop wall of jumping over and enter turbulent region; under the effect of Action of Gravity Field and wind-force; deposit on the line, because sand has cumulative bad, along with passage of time; sand will bury railway roadbed, threatens the safe operation of train.
Compared with above-mentioned existing windbreak, when using the utility model wind-proofing sand-blocking wall as wind-proofing sand-blocking facility: after air-flow meets this wind-proofing sand-blocking wall, air-flow is divided into two parts (as Fig. 6), and a part of air-flow is jumped over wind-proofing sand-blocking wall top (direction level points to lower wind direction, is called for short air-flow I); Another part air-flow (being called for short air-flow II), after the horizontal gas flow namely below wind gathering plate 2 runs into the obstruction of verge board 3, direction changes, air-flow II will move straight up along verge board 3, enter wind gathering hole, and this air-flow II is through wind gathering hole, because flow section reduces, air-flow is compressed, now, wind gathering hole is played " funnelling ", and the speed of the ascending air entering wind gathering hole is increased, from the ejection of upper end, wind gathering hole, inhibition is produced to air-flow I; There is decay in the speed of the conjunction air-flow that air-flow I and air-flow II are synthesized, as shown in Figure 7, now, the husky ability of taking of air-flow declines at double, and the grains of sand amount of the wind-proofing sand-blocking wall that makes to jump over reduces, and sand prevention efficiency improves.To the right, initial wind speed is refer at windward side apart from the horizontal range negative value at windbreak top in 50m/s, Fig. 7 abscissa to the wind direction level of the air-flow in Fig. 7, on the occasion of at leeward side.
Claims (4)
1. a gathering type wind wind-proofing sand-blocking wall, it is characterized in that, comprise two root posts (1) be arranged side by side, wind gathering plate (2) and verge board (3) are set between two root posts (1), space is had between wind gathering plate (2) and verge board (3), column (1) top, wind gathering plate (2) top are mutually concordant with verge board (3) top, and the position of wind gathering plate (2) lower surface is higher than the position of verge board (3) lower surface.
2. gathering type wind wind-proofing sand-blocking wall as claimed in claim 1, it is characterized in that, wind gathering plate (2) is connected with two root posts (1) respectively towards the both sides of column (1), and verge board (3) is connected with two root posts (1) respectively towards the both sides of column (1).
3. gathering type wind wind-proofing sand-blocking wall as claimed in claim 1 or 2, it is characterized in that, a sidewall of described column (1) is provided with two clamp bar slots, and column (1) is connected with wind gathering plate (2) and verge board (3) respectively by this two clamp bar slot.
4. gathering type wind wind-proofing sand-blocking wall as claimed in claim 3, is characterized in that, the position of verge board (3) lower surface is higher than the position of column (1) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922711.4U CN205134213U (en) | 2015-11-18 | 2015-11-18 | Gather wind formula and prevent wind husky wall of fender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520922711.4U CN205134213U (en) | 2015-11-18 | 2015-11-18 | Gather wind formula and prevent wind husky wall of fender |
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| Publication Number | Publication Date |
|---|---|
| CN205134213U true CN205134213U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520922711.4U Expired - Fee Related CN205134213U (en) | 2015-11-18 | 2015-11-18 | Gather wind formula and prevent wind husky wall of fender |
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| CN (1) | CN205134213U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256729A (en) * | 2015-11-18 | 2016-01-20 | 中铁西北科学研究院有限公司 | Wind-gathering windproof sand retaining wall |
| CN114809811A (en) * | 2022-04-12 | 2022-07-29 | 山东泰开重工机械有限公司 | Wind-proof place-arranging device for field operation and use method |
-
2015
- 2015-11-18 CN CN201520922711.4U patent/CN205134213U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256729A (en) * | 2015-11-18 | 2016-01-20 | 中铁西北科学研究院有限公司 | Wind-gathering windproof sand retaining wall |
| CN105256729B (en) * | 2015-11-18 | 2017-09-22 | 中铁西北科学研究院有限公司 | Gathering type wind wind-proofing sand-blocking wall |
| CN114809811A (en) * | 2022-04-12 | 2022-07-29 | 山东泰开重工机械有限公司 | Wind-proof place-arranging device for field operation and use method |
| CN114809811B (en) * | 2022-04-12 | 2023-11-10 | 山东泰开重工机械有限公司 | Wind-proof battle array device for field operation and use method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20201118 |