CN102704416B - Spliced three-dimensional sand blocking fence - Google Patents
Spliced three-dimensional sand blocking fence Download PDFInfo
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- CN102704416B CN102704416B CN201210235262.7A CN201210235262A CN102704416B CN 102704416 B CN102704416 B CN 102704416B CN 201210235262 A CN201210235262 A CN 201210235262A CN 102704416 B CN102704416 B CN 102704416B
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- sand
- fence
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- sandboard
- sand blocking
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Abstract
The invention provides a spliced three-dimensional sand blocking fence comprising a plurality groups of combined fences, wherein the plurality groups of combined fences form a folding screen, each group of combined fences is composed of three sand blocking monomers arranged in a step shape, and the distance between the corresponding sand blocking monomers in the two adjacent groups of combined fences is 0.5-1m. The sand blocking fence is a three-dimensional sand blocking fence, thereby effectively reducing the wind speed and interfering the wind-sand field to block the wind-sand. The spliced three-dimensional sand blocking fence has convenience in construction, low cost and excellent anti-sand effect and improves the technical level of the wind-sand disaster control engineering field.
Description
Technical field
The invention belongs to sandstorm Way of Engineering Technology in Control of Underground field, relate to a kind of mechanical sand fence that is applicable to the fields such as railway, highway, ancient site protection and urban construction, be specifically related to the three-dimensional sand fence of a kind of pin-connected panel.
Background technology
NORTHWEST CHINA portion local climate arid; rainfall is rare; wind-sand activity is frequent; in recent years; along with the propelling of China's development of the West Regions, the infrastructure construction develop rapidly of the Northwest, but sandstorm is prevented and treated the engineering construction that a difficult problem still perplexs the fields such as railway, highway, ancient site protection and urban construction; become the major issue that affects these domain engineering construction qualities, restricted to a certain extent the development that Economy of Western Areas is built.
Machinery sand fence is a kind of sand-prevention engineering measure, it is the important technical of control railway or highway sand damage, common sand-prevention engineering measure has concrete sleeper sand wall, PE net height vertical sand barrier, reed sand fence etc., certain effect has been played in these sand-prevention engineering measures in the sandstorm prevention and cure projects such as existing railway, highway, but the problem such as ubiquity difficulty of construction is large, cost is high, sand prevention benefit is low.
Summary of the invention
The object of this invention is to provide that a kind of difficulty of construction is little, cost is low, the three-dimensional sand fence of the pin-connected panel of sand prevention high efficiency, for solving the problems such as the sand fence difficulty of construction that prior art exists is large, cost is high, sand prevention benefit is lower.
For achieving the above object, the technical solution adopted in the present invention is: the three-dimensional sand fence of a kind of pin-connected panel, comprise many group combination fence, these many groups combination fence form screen one, every group is combined fence by the sand monomer composition of three stepped settings, and the distance that two adjacent groups combines between sand monomer corresponding in fence is 0.5~1m.
Sand monomer, comprise base and dust storm baffle plate, dust storm baffle plate is by sandboard and pedestal is affixed forms, and the vertical cross-section of sandboard is shaped as trapezoidal, the end face of sandboard is provided with a plurality of air-permeating holes, and the height that combines on the same group three sandboards in fence increases successively along downwind.
Sand fence of the present invention is comprised of many groups of combination fence, and each group combination fence is by the husky monomer composition of three gears of interlaced arrangement, and in the husky monomer of this three gear, the height of sandboard increases successively, form three-dimensional sand fence, can effectively reduce wind speed, disturb sand-flow field, realize stopping dust storm.And easy construction, cost is lower, sand prevention benefit is good, has improved the technical level in sandstorm prevention and cure project field.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram of the three-dimensional sand fence of pin-connected panel of the present invention.
Fig. 2 is the schematic diagram of sand monomer in the three-dimensional sand fence of pin-connected panel of the present invention.
Fig. 3 is the assembled state figure of sand monomer and base in the three-dimensional sand fence of pin-connected panel of the present invention.
In figure: 1. combine fence, the 2. objective of defense, 3. sand monomer, 4. base, 5. sandboard, 6. air-permeating hole, 7. pedestal.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, the three-dimensional sand fence of pin-connected panel provided by the invention, comprise many group combination fence 1, these many groups combination fence 1 form one screen, be arranged at the objective of defense 2 side windward, every group of combination fence 1 forms by three sand monomers 3, three stepped settings of sand monomer 3 in every group of combination fence 1, and the distance H that two adjacent groups combines between sand monomer 3 corresponding in fence 1 is 0.5~1m.
As shown in Figures 2 and 3, the sand monomer 3 in sand fence of the present invention, comprises base 4, and base 4 is concrete prefabricated basis.Base 4 is connected with the sandboard 5 of vertical setting by pedestal 7, sandboard 5 is reinforced concrete prefabricated; Sandboard 5 is quadrangular, and its vertical cross-section is shaped as trapezoidal, and pedestal 7 is cuboid; Sandboard 5 and pedestal 7 are affixed as a whole, form dust storm baffle plate, and the thickness of sandboard 5 is 3~8cm, and the width of pedestal 7 is 5~40cm; The end face of sandboard 5 is provided with a plurality of air-permeating holes 6, and the diameter of air-permeating hole 6 and quantity require to design according to the degree of porosity of sand fence; Combining on the same group the distance L between adjacent two sandboards 5 in fence 1 is 10~20cm.
The vertical cross-section of general sand fence sandboard is shaped as rectangle, according to site observation date, show, in NORTHWEST CHINA wind-sand activity area, sedimentary loading is with highly increasing sharply and decline, mainly concentrate within the scope of the above 30cm in ground, account for 65%~85% of total discharge of sediment.And bottom, trapezoid cross section is wider, can effectively stop dust storm invasion and attack; Top is narrower, can effectively reduce wind speed and make grains of sand deposition, according to stepped solid, sandboard is set simultaneously, has both improved the husky rate of resistance of sand fence, has saved again material usage, has reduced construction costs.
The height of three sandboards 5 in same group of combination fence 1 is different, along away from the direction of the objective of defense 2, the height of three sandboards 5 is followed successively by 0.6~1.5m, 0.4~1.1m and 0.2~0.9m, during actual installation, along away from the direction of the objective of defense 2, on the same group in the height of three sandboards 5 reduce successively.The concrete specification of sandboard 5 is adjusted according to dust storm prevention and cure project design parameterss such as territory of use's Structure of wind-Sand Flow, sedimentary loadings.The reserved fixed card slot that can insert reinforced concrete prefabricated board in concrete prefabricated basis, only need be assembled, convenient and swift by dust storm baffle plate and base 4 during site operation.After having constructed, all sandboards 5 form three-dimensional sand fence together, can effectively reduce wind speed, disturb sand-flow field, realize the effect of catch blowing sand.
The three-dimensional sand fence of this pin-connected panel is catch blowing sand effectively, and easily construction, and cost is lower, and sand prevention remarkable benefit has been opened up new Research Thinking in sandstorm prevention and cure project field.
Adopt the method for wind tunnel simulation test to study the dustproof effect of sand fence: the sand-flow field when drifting sand region, tunnel simulation field wind speed is respectively 10m/s, 18m/s, 25m/s, respectively the husky rate of resistance of the husky rate of the resistance of existing single sand fence and the three-dimensional sand fence of the present invention is tested, test data is in Table 1.
The existing single sand fence that table 1 adopts wind tunnel simulation test to obtain hinders husky rate and the three-dimensional sand fence of the present invention hinders husky rate
As shown in Table 1, at simulated field wind speed, be respectively in 10m/s, 18m/s, 25m/s situation, the husky rate of resistance of the three-dimensional sand fence of the present invention is respectively 91.6%, 76.3%, 66.8%; Improved respectively 13.2%, 13.8%, 14.7% with the husky rate of existing single sand fence phase resistivity, illustrated that the sand prevention benefit of this three-dimensional anti-sand fence is obviously better than existing single sand fence, significantly improved sand prevention efficiency.
Claims (1)
1. the three-dimensional sand fence of a pin-connected panel, comprise many group combination fence (1), these many groups combination fence (1) form one screen, every group of combination fence (1) forms by the sand monomer (3) of three stepped settings, and the distance that two adjacent groups combines between sand monomer (3) corresponding in fence (1) is 0.5~1m; It is characterized in that, described sand monomer (3), comprise base (4) and dust storm baffle plate, dust storm baffle plate is by sandboard (5) and affixed the forming of pedestal (7), the vertical cross-section of sandboard (5) is shaped as trapezoidal, the end face of sandboard (5) is provided with a plurality of air-permeating holes (6), and the height that combines on the same group three sandboards (5) in fence (1) increases successively along downwind.
2. the three-dimensional sand fence of pin-connected panel according to claim 1, is characterized in that, along downwind, same group of height that combines three sandboards (5) in fence (1), is followed successively by 0.2~0.9m, 0.4~1.1m and 0.6~1.5m.
3. the three-dimensional sand fence of pin-connected panel according to claim 1 and 2, is characterized in that, described to combine on the same group the distance between adjacent two sandboards (5) in fence (1) be 10~20cm, and the thickness of sandboard (5) is 3~8cm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210235262.7A CN102704416B (en) | 2012-07-09 | 2012-07-09 | Spliced three-dimensional sand blocking fence |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201210235262.7A CN102704416B (en) | 2012-07-09 | 2012-07-09 | Spliced three-dimensional sand blocking fence |
Publications (2)
Publication Number | Publication Date |
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CN102704416A CN102704416A (en) | 2012-10-03 |
CN102704416B true CN102704416B (en) | 2014-09-10 |
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CN201210235262.7A Expired - Fee Related CN102704416B (en) | 2012-07-09 | 2012-07-09 | Spliced three-dimensional sand blocking fence |
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Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
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ES2593849B1 (en) * | 2016-04-15 | 2017-09-19 | Covema Y Obras, S.L. | PROTECTION SYSTEM IN WORKS OF SANDS TRANSPORTED BY WIND AND INSTALLATION PROCEDURE |
CN109281260B (en) * | 2018-11-12 | 2024-03-15 | 中铁西北科学研究院有限公司 | But cyclic utilization keeps off husky wall and keeps off husky wall system |
CN110318347B (en) * | 2019-07-19 | 2020-02-18 | 中铁西北科学研究院有限公司 | Wave combination formula snow wall |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002194714A (en) * | 2000-12-27 | 2002-07-10 | Ibiden Greentec Co Ltd | Sand preventive wall using field-generated soil and sand and its execution method |
CN200996130Y (en) * | 2007-01-30 | 2007-12-26 | 铁道第一勘察设计院 | Sandproof railing of vertical louver window |
CN101307592A (en) * | 2007-05-16 | 2008-11-19 | 中国药品生物制品检定所 | Wind sand blocking method and device |
WO2010059597A1 (en) * | 2008-11-19 | 2010-05-27 | Saudi Arabian Oil Company | Geogrid sand fence |
CN202644419U (en) * | 2012-07-09 | 2013-01-02 | 中铁西北科学研究院有限公司 | Split mounting type solid sandproof fence |
-
2012
- 2012-07-09 CN CN201210235262.7A patent/CN102704416B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002194714A (en) * | 2000-12-27 | 2002-07-10 | Ibiden Greentec Co Ltd | Sand preventive wall using field-generated soil and sand and its execution method |
CN200996130Y (en) * | 2007-01-30 | 2007-12-26 | 铁道第一勘察设计院 | Sandproof railing of vertical louver window |
CN101307592A (en) * | 2007-05-16 | 2008-11-19 | 中国药品生物制品检定所 | Wind sand blocking method and device |
WO2010059597A1 (en) * | 2008-11-19 | 2010-05-27 | Saudi Arabian Oil Company | Geogrid sand fence |
CN202644419U (en) * | 2012-07-09 | 2013-01-02 | 中铁西北科学研究院有限公司 | Split mounting type solid sandproof fence |
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CN102704416A (en) | 2012-10-03 |
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