EP0116153A1 - Dispositif de protection pour réduire la vitesse du vent - Google Patents

Dispositif de protection pour réduire la vitesse du vent Download PDF

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Publication number
EP0116153A1
EP0116153A1 EP83112597A EP83112597A EP0116153A1 EP 0116153 A1 EP0116153 A1 EP 0116153A1 EP 83112597 A EP83112597 A EP 83112597A EP 83112597 A EP83112597 A EP 83112597A EP 0116153 A1 EP0116153 A1 EP 0116153A1
Authority
EP
European Patent Office
Prior art keywords
surface elements
protection device
wind
protective device
individual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP83112597A
Other languages
German (de)
English (en)
Inventor
Carl Prof.Dr.-Ing. Kramer
Hans Joachim Prof. Dipl.-Ing. Gerhardt
Ulrich Kreft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0116153A1 publication Critical patent/EP0116153A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
    • E01F7/025—Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances

Definitions

  • the invention relates to a protective device for reducing the wind speed.
  • Such a protective device can be used wherever "calm" zones are required, for example highway bridges where strong cross winds often endanger traffic.
  • a preferred application of such a protective device is the sedimentation of solids that are carried by the wind, in particular flying sand or snow.
  • the invention is therefore based on the object of providing a protective device for reducing the wind speed, in which the disadvantages mentioned above do not occur.
  • a protective device which enables the formation of a precisely defined, flow-reduced zone.
  • the advantages achieved by the invention are based in particular on the use of a specifically wind-permeable protective device, as a result of which a wake area on the outflow side of the protective device is produced with a uniformly reduced wind speed and without pronounced wake vortices.
  • These wind-calming zones on the side of the protective device facing away from the wind have an increasing width in the vertical direction from top to bottom, so that there is a pronounced sedimentation of the particles carried by the wind without any influence by wake vortices, as occurs in the known safety fences for sand or snow.
  • the individual surface elements expediently have a triangular or trapezoidal line surface, as a result of which the desired shape, namely the narrowing of the width with increasing height of the surface elements, is obtained in a simple manner in terms of production technology.
  • closable openings are provided in the lower region of at least individual surface elements.
  • the wind permeability of the protective device can be adapted to the local conditions by partially or completely opening or closing these openings. If, for example, the speed profile of the wind near the ground is more complete, as is the case, for example, on a crest, the lower openings are opened and thus greater permeability is achieved in the immediate vicinity of the ground.
  • a lower permeability in the lower area is more favorable to achieve optimal sedimentation, i.e. the openings are closed.
  • a further variation of the wind permeability is possible by changing the distance between the individual surface elements, which can also be adapted to the atmospheric conditions at the installation site.
  • the openings in the lower area of the surface elements offer yet another advantage, since these openings suppress the oscillating vortex zones that usually occur behind larger, vertical surface elements.
  • the surface elements are expediently profiled in the horizontal section, for example have a rocker shape, so that the aerodynamically effective width of the individual surface element is greater than its geometric width due to the deflection of the flow near the wall at the downstream edges.
  • a profiling provides a favorable stiffening of the individual surface elements.
  • the side edges of the surface elements are expediently provided with bevels which likewise increase the rigidity and at the same time allow the flow direction of the wind / sand flow to be influenced to a certain extent.
  • Bends made of a metallic material are expediently incorporated into the foot region of the individual surface elements in order to facilitate the fastening of the elements to the floor. These folds are provided with holes through which pegs can be hammered in.
  • the individual surface elements can be set up both individually and in combination, whereby in the last-mentioned case the individual folds overlap in the floor area.
  • the surface elements expediently do not contain any horizontal projections, jumps, bends or similar designs on the side facing away from the flow direction of the wind, which would be covered by the deposited solid particles and would thus make it difficult to pull out the surface elements.
  • the surface elements can be made of glass fiber reinforced plastic, metal or a suitable, UV-resistant plastic.
  • the UV and weather resistance is important because of the extreme climates in desert areas.
  • Both the shape of the end face and the profile shape of the surface elements are expediently designed such that the individual surface elements can be stacked tightly into one another. Then the transport and storage pose no problems.
  • the protective device generally indicated in FIG. 1 by the reference numeral 10 has a plurality of surface elements which are set up next to one another essentially perpendicular to the flow direction of the wind, of which three surface elements 12, 14 and 16 are shown in FIG. 1.
  • the surface elements 12, 14 and 16 each have an identical shape, which will be explained below with reference to the surface element 12.
  • This surface element 12 consists essentially of two trapezoidal surfaces 12a and 12b, which are arranged vertically and form an obtuse angle with one another, so that an almost vertical leading edge is formed.
  • the surface element 12 Seen from the front, that is to say in the direction of flow of the wind, the surface element 12 has a trapezoidal shape, as is also indicated in FIG. 2.
  • the side edges of the two surfaces 12a have vertical bevels 12b, which are arranged at an obtuse angle to the surfaces 12a, so that the surface element 12 has a roughly swing shape in horizontal section with forwardly directed bevels 12a.
  • bevels 12d projecting forward, that is, against the wind direction, into which a metallic material can be incorporated. These bevels 12d have holes for the introduction of hardening rings 18.
  • Certain surface elements for example the right element 16 in the protective device according to FIG. 10, are provided in their lower region, that is to say in the lower part of the surfaces 12a, with approximately rectangular openings 12e which can be at least partially closed. This allows the permeability of the individual surface elements 12, 14, 16 and thus also the protective device 10 to be adapted to local conditions.
  • the surface elements 12, 14 and 16 are made of glass fiber reinforced plastic, metal or a suitable UV-resistant plastic.
  • the surface elements 12, 14 and 16 On the side facing away from the wind direction, the surface elements 12, 14 and 16 have no projections, bevels, etc., so that the surface elements 12, 14 and 16 can be stacked one inside the other by appropriate shaping.
  • This protective device 10 is mounted in the following way: the individual surface elements 12, 14 and 16 are fastened to the floor by means of pegs 18 which are driven in through the holes in the bevels 12d; This is followed by tensioning via the tensioning cables 14, 24, which are fastened on the one hand to the center of the surface elements 12, 14, 16, that is to say in the region of the leading edge, and on the other hand to the floor by means of further ring pegs 22.
  • the bevels 12d overlap each other in their end region, so that the outer Herring is used to fasten two adjacent surface elements.
  • FIG. 2 shows the mode of operation of the protective device 10 according to FIG. 1, the inflow speed of the wind being indicated by U ⁇ . Wind at this speed flows from the front against the surface elements, each of which has a trapezoidal end face, i.e. in the direction x.
  • FIG. 2 shows the course of the local speed U, based on the undisturbed inflow speed Uoo, behind the protective device 10 for a horizontal reference axis in the x direction, specifically with a vertical ground clearance which is one third of the height H of the surface elements 12, 14 and 16 corresponds.
  • the individual surface elements can then be rebuilt at a different location.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
EP83112597A 1982-12-22 1983-12-15 Dispositif de protection pour réduire la vitesse du vent Withdrawn EP0116153A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3247602 1982-12-22
DE19823247602 DE3247602A1 (de) 1982-12-22 1982-12-22 Schutzvorrichtung zur verringerung der windgeschwindigkeit

Publications (1)

Publication Number Publication Date
EP0116153A1 true EP0116153A1 (fr) 1984-08-22

Family

ID=6181476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112597A Withdrawn EP0116153A1 (fr) 1982-12-22 1983-12-15 Dispositif de protection pour réduire la vitesse du vent

Country Status (6)

Country Link
US (1) US4529173A (fr)
EP (1) EP0116153A1 (fr)
JP (1) JPS59118905A (fr)
AU (1) AU2255683A (fr)
DE (1) DE3247602A1 (fr)
DK (1) DK574283A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471799A (en) * 1994-06-16 1995-12-05 Metalmaster Sheet Metal, Inc. Snow guard
US6053479A (en) * 1998-06-26 2000-04-25 The United States Of America As Represented By The Secretary Of The Army Self-aligning vortex snow fence
US6986624B1 (en) * 2004-06-30 2006-01-17 Tabler Ronald D Porous tubular device and method for controlling windblown particle stabilization deposition and retention
US7097385B2 (en) * 2004-09-29 2006-08-29 Tabler Ronald D Tetrapod control device and method for stabilizing, depositing and retaining windblown particles
US7780148B2 (en) * 2005-05-05 2010-08-24 University Of South Florida Vortex generating sand and snow fence
US9435093B2 (en) * 2013-10-31 2016-09-06 Board Of Regents Of The Nevada System Of Higher Education, On Behalf Of The Desert Research Institute Engineered roughness elements, arrays thereof, and their method of use
CN108952315A (zh) * 2018-09-17 2018-12-07 山西尚风科技股份有限公司 一种减风装置
CN110318347B (zh) * 2019-07-19 2020-02-18 中铁西北科学研究院有限公司 一种波浪形组合式挡雪墙
JP6944979B2 (ja) * 2019-08-28 2021-10-06 Ｉｈｉ運搬機械株式会社 ドローンポート
CN112030791A (zh) * 2020-07-20 2020-12-04 中国科学院西北生态环境资源研究院 具有斜面阻网结构的防风阻沙装置及路基风沙防护体系

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE104675C (fr) *
DE112365C (fr) *
US3227423A (en) * 1963-07-10 1966-01-04 Thielex Plastics Corp Snow fence
DE2311309A1 (de) * 1972-04-01 1973-10-18 Forgialluminio Piave S P A Windschutzanordnung fuer strassen
DE7407622U (de) * 1974-06-06 Maibach G Schneezaun mit einer Haltevorrichtung für das Schneefangnetz

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE346913C (de) * 1920-05-29 1922-01-10 Erwin Falkenthal Durchbrochene Stauwand
US1545909A (en) * 1925-01-03 1925-07-14 Donald A Mckinnon Snow fence
US1668651A (en) * 1926-09-24 1928-05-08 Donald A Mckinnon Snow fence
US1773128A (en) * 1927-09-13 1930-08-19 George L Barrus Snow fence
US2765994A (en) * 1953-04-29 1956-10-09 Strato Port Corp Of America Unidirectional airport

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE104675C (fr) *
DE112365C (fr) *
DE7407622U (de) * 1974-06-06 Maibach G Schneezaun mit einer Haltevorrichtung für das Schneefangnetz
US3227423A (en) * 1963-07-10 1966-01-04 Thielex Plastics Corp Snow fence
DE2311309A1 (de) * 1972-04-01 1973-10-18 Forgialluminio Piave S P A Windschutzanordnung fuer strassen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CAHIERS DU CENTRE SCIENTIFIQUE & TECHNIQUE DU BATIMENT, Nr. 208, April 1980, Paris G. BARNAUD et al. "Pare-vent aux garages d'écluses - Application à l'écluse de jonction de Toul", Seite 408 *

Also Published As

Publication number Publication date
DE3247602A1 (de) 1984-07-05
DK574283D0 (da) 1983-12-13
AU2255683A (en) 1984-06-28
JPS59118905A (ja) 1984-07-09
US4529173A (en) 1985-07-16
DK574283A (da) 1984-06-23

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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