CN2575154Y - Steel reinforcing concrete vertical bearing piles with special-shaped section - Google Patents
Steel reinforcing concrete vertical bearing piles with special-shaped section Download PDFInfo
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- CN2575154Y CN2575154Y CN02275025U CN02275025U CN2575154Y CN 2575154 Y CN2575154 Y CN 2575154Y CN 02275025 U CN02275025 U CN 02275025U CN 02275025 U CN02275025 U CN 02275025U CN 2575154 Y CN2575154 Y CN 2575154Y
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- wind
- sand
- barrier
- brake flap
- force brake
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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Abstract
The utility model relates to a desert sand fixing technique, more specially a movable low vertical type mechanical wind-prevention sand fixing barrier with a wind penetration structure, which can be used for preventing wind, fixing sand and promoting the vegetation recovery on a dune surface. The utility model is composed of a wind force speed brake with a plurality of ventilation holes and a fixed bracket which is flexibly connected with the wind force speed brake, wherein the lower part of the wind force speed brake is provided with an anticorrosive fixed claw, and the upper part of a fixed rod of the fixed bracket can be provided with a clamping groove which is clamped with the wind force speed brake; the part of the fixed bracket inserted ender ground is provided with a reinforcement pull rod which forms a shape like the Chinese character 'ren' with the fixed rod. The utility model can be used for controlling flow directions of wind and sand, speeds and structures effectively, the quicksand corrosion and accumulation status is changed, the purposes of preventing wind, blocking sand and changing wind acting force are reached, seeds of drought resistant plants on the surface of a local dune and seedlings are prevented from wind corrosion and mechanical damage, and a necessarily protective condition is provided for promoting the quick recovery of sand vegetation. In addition, the utility model also has the characteristics of simple and practical operation, labor saving, convenient assembly and disassembly, moving ability, multi-time repeated use, etc.
Description
Technical field
The utility model relates to the desert sand fixing technology, specifically at the northern China desertificated area flow, semi-mobile dune and a kind of machinery of checking winds and fixing drifting sand, promoting the removable low vertical ventilation structure of sand dune surface vegetation recovery of designing are checked winds and fixed drifting sand barrier.
Background technology
The desertification of land world today faces one of maximum environmental problem.Because developing rapidly of desertification land area caused environmental degradation and enormous economic loss, makes it to become the focus of global extensive concern.The current whole world has more than 100 countries and regions, population more than 1,000,000,000 to be subjected to desertification harm in various degree, and nearly 1/4th soils of earth top are subjected to the threat of desertification, and just with annual 5-7 ten thousand km
2Speed enlarge, current whole world every year because of economic loss that desertification caused up to 42,300,000,000 dollars.China is one of serious country of the harm of desertification in the world, and show according to State Administration of Forestry's statistics: the land area that China is influenced by desertification is about 331.7 ten thousand km
2, account for 34% of area.Wherein sandy desertification (desertification) area is about 153.3 ten thousand km
2, account for 16% of territory land surface, the area that has nearly 400,000,000 populations to live in desertification or influenced by desertification.Entered since 20th century, China's desertification development presents continuous quickening trend: in the 60-70 age is 1560Km
2/ year, be 2100Km the eighties
2/ year, reach 2460Km the nineties
2/ year.The annual direct economic loss that causes because of desertification is up to more than 2,000,000,000 to 3,000,000,000 dollars, and indirect loss is 2 to 10 times of direct losses.Because ccd area is constantly expanded, and causes sandstorm more and more frequent, and the northern area economic construction that comprises Beijing, China capital is caused very big destruction, brings heavy losses to the people's lives and property.
Northern China arid, semiarid zone are vast in territory, and arid, windy climatic characteristic provides material base with the abundant sandy face of land for wind-sand activity.The serious stage of desertification development be form large-arealy flow, semi-mobile dune, therefore administer the semi-mobile dune that flows and be and administer the fundamental sum important contents of desertification land.Over nearly 30 years, comprise China in the world tens countries all formulated or formulated this country's national action scheme that prevents and controls desertification.Because the situation difference of countries in the world, Preventing Countermeasures is also different, but basic trend is to be integrated as main body with engineering measure, biological control measure or by both, and the utility model is belong to engineering measure a kind of.
Mechanical sand barrier is that one of major measure of engineering sand control is carried out in the whole world always, traditional mechanical sand barrier is to adopt materials such as shrub branch, crop straw, straw, clay and cobble, on the surface, sand dune, be arranged to various forms of blinds, control direction, speed, structure, the change erosion cumuliformis condition that dust storm flows with this, reach wind prevention and sand resistance, change purposes such as wind action power and landforms situation.Mechanical sand barrier can be divided into flush system and vertical type two big classes according to the difference of the material that is adopted, method to set up, collocation form and sand-protecting barrier height.The flush system sand-protecting barrier generally adopts materials such as clay, cobble, faggot, lays or the banded surface, pile things on sand dune of laying comprehensively; The vertical type sand-protecting barrier generally waits constructing operation with shrub branch, hard grass class, long-stalked crop straw, generally claim high vertical sand barrier the overground part height at 50-100 centimetres sand-protecting barrier, the sand-protecting barrier of height between 20-50 centimetres on the ground is called low vertical sand barrier.The common issue with that above-mentioned two kinds of traditional mechanical sand barriers exist is: material usage is excessive, a large amount of hand labor power of needs, effective protective time is short, and need often keep in repair, otherwise will and not reach the sand-fixing effect of expection by long-pending husky institute's pile things on before the barrier, behind the barrier, also influence sandy soil absorbing simultaneously natural precipitation.Housing in row or checkering sand-protecting barrier that particularly traditional low vertical sand barrier generally adopts shrub branch or material clips such as wheat straw, straw to establish, the sand-protecting barrier degree of porosity is wayward, amass sand easily after forming tight structure, cause sand to bury, often cause the drift sand deflation after forming sparsity structure, and effective life also only was 1-2 years.
The utility model content
The purpose of this utility model is the shortcoming at above-mentioned existence; providing a kind of can flow at desertificated area; the semi-mobile dune surface; effectively control the dust storm flow direction; speed; structure; change drift sand erosion cumuliformis condition; reach wind prevention and sand resistance; change wind action power; prevent the seed of surface, local sand dune drought-resistant plant and seedling is eroded and mechanical damage; for promoting the sand ground quick recovering vegetation that necessary protective condition is provided; not only have easy to operation; save manpower; accelerate sand dune surface vegetation recovery speed; also have easy to loading and unloading. removable; Chong Fuliyong the barrier of checking winds and fixing drifting sand repeatedly.
The technical solution of the utility model is:
A kind of removable low vertical mechanical barrier of checking winds and fixing drifting sand constitutes by the wind-force brake flap that has many gravity vents and with fixed support that the wind-force brake flap flexibly connects, and wind-force brake flap bottom is furnished with the corrosion protection fixed claw.
Wind-force brake flap of the present utility model both ends are connected with fixed support, and fixed support is alternately arranged with the corrosion protection fixed claw respectively inwardly and inserted in the sand, fixed support and corrosion protection fixed claw to replace arrangement pitches be 0.5～1.5 meter.
Support bracket fastened fixed bar of the present utility model top can be provided with the draw-in groove with the clamping of wind-force brake flap, and fixed support inserts under ground portion and is provided with the reinforcing pull bar that is " people " font with fixed bar.
The degree of porosity of wind-force brake flap of the present utility model is 25～50%, the length L specification of wind-force brake flap is 10 meters or 15 meters or 20 meters, the height H of wind-force brake flap is 30～50 centimetres, support bracket fastened height is 40～70 centimetres, and the height h that fixed support and corrosion protection fixed claw insert in the sand is 10～20 centimetres.
Compare with traditional material that mechanical sand barrier adopted (materials such as tree branches, faggot, clay and cobble), the advantage of the utility model mechanical sand barrier is: volume is little, in light weight, convenient transportation, and assembling is rapid and simple on sand ground; Anti-aging, can repeatedly reuse, life cycle reaches 25-30; Save time, laborsaving, saving of labor (saving the labour more than 60%) than traditional sand-protecting barrier; Be applicable to that large tracts of land fixes the sand to use, can effectively weaken wind-force and change Structure of wind-Sand Flow, and can sand-protecting barrier itself be bent to certain angle, make Shamian Island reach stable state, thereby create good conditions for plant survival and growth according to the dust storm direction; This measure combined with plant measures can reach sand dune fast greening, the rapid sand control effect of restore vegetation.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the left view of Fig. 1.
The specific embodiment
As shown in Figure 1, the utility model adopts high strength, organic material (as: polyethylene) compacting ageing-resistant, that the uvioresistant wire spoke is penetrated to form.It is to constitute by hanging down vertical, as to have many gravity vents 3 wind-force brake flap 2 and having fixed support 1 two parts of reinforcing 2 effects of wind-force brake flap, wind-force brake flap 2 bottoms are furnished with corrosion protection fixed claw 4, position, wind-force brake flap 2 both ends is connected with fixed support 1 respectively, fixed support 1 is inwardly alternately arranged with corrosion protection fixed claw 4 and is inserted in the sand, fixed support 1 and corrosion protection fixed claw 4 to replace arrangement pitches be 1 meter.The degree of porosity of mechanical sand barrier is the ratio of the sand-protecting barrier draught area and the sand-protecting barrier gross area, it is the index of the ventilative performance of reflection sand-protecting barrier, wind-force brake flap 2 is to make according to dust storm movement law and the design of sand-protecting barrier degree of porosity binomial parameter, according to experimental study result for many years, determine at 25-50%, the degree of porosity of present embodiment wind-force brake flap 2 is 40%, the length L specifications design of wind-force brake flap 2 is 10 meters, 15 meters or 20 meters, present embodiment is 15 meters, the height H of wind-force brake flap 2 is 40 centimetres, and corrosion protection fixed claw 4 inserts in the sand, and height h is 15 centimetres, the height of fixed support 1 is 55 centimetres, and the height that wherein inserts in the sand is 15 centimetres.
As shown in Figure 2, fixed bar 12 tops of card slot type fixed support 1 are provided with the draw-in groove 11 with 2 clampings of wind-force brake flap, fixed support 1 can be connected with wind-force brake flap 2, fixed support 1 inserts under ground portion and is provided with the reinforcing pull bar 13 that is " people " font with fixed bar 12, with fixed bar 12 angles be α, 0 °＜α＜90 °, present embodiment is 45 °, has the effect that prevents that mechanical sand barrier is oblique just.
The concrete using method of the utility model:
On moving dunes, according to the moving dunes windward side gradient, domatic length, take the housing in row setting, the sand-protecting barrier line space is 4.0m.At first domaticly delimit center line by the bottom facining the wind according to prevailing wind direction, press the contour delimitation horizontal line of level at basic vertical prevailing wind direction then, at first set gradually wind-force brake flap 2, press under the vertical back with sand dune surface, in the corrosion protection fixed claw 4 insertion sand with wind-force brake flap 2 bottoms according to crossline direction; To reinforce card slot type fixed support 1 then and place wind-force brake flap 2 leeward sides, direction snaps in wind-force brake flap 2 from top to bottom, and the bottom is inserted in the sand and fixed.After mechanical sand barrier is established, the sowing or all kinds of sand ground drought enduring plants of planting between sand-protecting barrier.
The utility model machinery mechanism of checking winds and fixing drifting sand is:
Show by long-term observation and experimental study result: flow the dust storm movement law, moving and wind and sand dune height itself of semi-mobile dune, surface water is relevant with factors such as vegetation conditions, wherein the influence with wind is a maximum, this is because moving of sand dune mainly is under the effect of wind-force, the result that the sand dune is raised by blowing and piled up at leeward slope from windward slope, so, sand dune translational speed and respective relationships are the relation between wind speed and the sedimentary loading in itself, thereby effectively control the speed of wind, flow direction and sedimentary loading, just can control mobile, the translational speed of semi-mobile dune, when the speed of taking mechanical measure that the sand dune is moved reduces to when approaching zero, just can be fixed.
Claims (5)
1. removable low vertical mechanical barrier of checking winds and fixing drifting sand, it is characterized in that it constitutes by the wind-force brake flap (2) that has many gravity vents (3) and with fixed support (1) that wind-force brake flap (2) flexibly connects, wind-force brake flap (2) bottom is furnished with corrosion protection fixed claw (4).
2. according to the described removable low vertical mechanical of claim 1 barrier of checking winds and fixing drifting sand, it is characterized in that wind-force brake flap (2) both ends are connected with fixed support (1), fixed support (1) is inwardly alternately arranged in the insertion sand with corrosion protection fixed claw (4) respectively.
3. according to the described removable low vertical mechanical of claim 2 barrier of checking winds and fixing drifting sand, it is characterized in that the fixed support (1) and the alternately arrangement pitches of corrosion protection fixed claw (4) are 0.5～1.5 meter.
4. according to claim 1 or the 2 described removable low vertical mechanicals barrier of checking winds and fixing drifting sand, fixed bar (12) top that it is characterized in that fixed support (1) is provided with the draw-in groove (11) with wind-force brake flap (2) clamping, and fixed support (1) inserts under ground portion and is provided with the reinforcing pull bar (13) that is " people " font with fixed bar (12).
5. according to claim 1 or the 2 described removable low vertical mechanicals barrier of checking winds and fixing drifting sand, the degree of porosity that it is characterized in that wind-force brake flap (2) is 25～50%, the length L specification of wind-force brake flap (2) is 10 meters or 15 meters or 20 meters, the height H of wind-force brake flap (2) is 30～50 centimetres, the height of fixed support (1) is 40～70 centimetres, and the height h that fixed support (1) and corrosion protection fixed claw (4) insert in the sand is 10～20 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02275025U CN2575154Y (en) | 2002-08-30 | 2002-08-30 | Steel reinforcing concrete vertical bearing piles with special-shaped section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02275025U CN2575154Y (en) | 2002-08-30 | 2002-08-30 | Steel reinforcing concrete vertical bearing piles with special-shaped section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2575154Y true CN2575154Y (en) | 2003-09-24 |
Family
ID=33739167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02275025U Expired - Fee Related CN2575154Y (en) | 2002-08-30 | 2002-08-30 | Steel reinforcing concrete vertical bearing piles with special-shaped section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2575154Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886381B (en) * | 2009-05-12 | 2012-08-29 | 娄志平 | Splayed net cage sand barrier and construction structure thereof |
| CN103628458A (en) * | 2012-08-21 | 2014-03-12 | 中国科学院沈阳应用生态研究所 | Combined type windbreak convenient to carry |
| CN103631068A (en) * | 2012-08-23 | 2014-03-12 | 中国科学院沈阳应用生态研究所 | Portable field photography background |
| CN104196003A (en) * | 2014-08-08 | 2014-12-10 | 成都迅德科技有限公司 | Movable road sand barrier |
| CN104563086A (en) * | 2014-12-29 | 2015-04-29 | 兰州大学 | 20cm high plastic net sand-protecting barrier device and arranging method |
| CN105421329A (en) * | 2015-12-15 | 2016-03-23 | 甘肃金海新材料有限公司 | Sand wind speed reducing plate, sand-preventing barrier, manufacturing method and application thereof |
| CN108166404A (en) * | 2018-03-09 | 2018-06-15 | 兰州铁道设计院有限公司 | A kind of railway overpass wind prevention and sand resistance plate |
-
2002
- 2002-08-30 CN CN02275025U patent/CN2575154Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886381B (en) * | 2009-05-12 | 2012-08-29 | 娄志平 | Splayed net cage sand barrier and construction structure thereof |
| CN103628458A (en) * | 2012-08-21 | 2014-03-12 | 中国科学院沈阳应用生态研究所 | Combined type windbreak convenient to carry |
| CN103628458B (en) * | 2012-08-21 | 2015-11-18 | 中国科学院沈阳应用生态研究所 | A kind of portable combined windbreak |
| CN103631068A (en) * | 2012-08-23 | 2014-03-12 | 中国科学院沈阳应用生态研究所 | Portable field photography background |
| CN104196003A (en) * | 2014-08-08 | 2014-12-10 | 成都迅德科技有限公司 | Movable road sand barrier |
| CN104196003B (en) * | 2014-08-08 | 2016-03-09 | 温州嘉弘市政园林工程有限公司 | Road moves sand-protecting barrier |
| CN104563086A (en) * | 2014-12-29 | 2015-04-29 | 兰州大学 | 20cm high plastic net sand-protecting barrier device and arranging method |
| CN105421329A (en) * | 2015-12-15 | 2016-03-23 | 甘肃金海新材料有限公司 | Sand wind speed reducing plate, sand-preventing barrier, manufacturing method and application thereof |
| CN105421329B (en) * | 2015-12-15 | 2017-12-05 | 甘肃金海新材料股份有限公司 | Dust storm flap, anti-sand-protecting barrier and its manufacture method and application |
| CN108166404A (en) * | 2018-03-09 | 2018-06-15 | 兰州铁道设计院有限公司 | A kind of railway overpass wind prevention and sand resistance plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |