EP1032733B1 - Lärmschutzwand - Google Patents

Lärmschutzwand Download PDF

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Publication number
EP1032733B1
EP1032733B1 EP98951287A EP98951287A EP1032733B1 EP 1032733 B1 EP1032733 B1 EP 1032733B1 EP 98951287 A EP98951287 A EP 98951287A EP 98951287 A EP98951287 A EP 98951287A EP 1032733 B1 EP1032733 B1 EP 1032733B1
Authority
EP
European Patent Office
Prior art keywords
noisescreen
branches
layer
tree stems
mineral fibre
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.)
Expired - Lifetime
Application number
EP98951287A
Other languages
English (en)
French (fr)
Other versions
EP1032733A1 (de
Inventor
Steen Erik Rask
Johannes Falk
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.)
Rockwool AS
Original Assignee
Rockwool International AS
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 Rockwool International AS filed Critical Rockwool International AS
Publication of EP1032733A1 publication Critical patent/EP1032733A1/de
Application granted granted Critical
Publication of EP1032733B1 publication Critical patent/EP1032733B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E01F8/0052—Grate-style, e.g. as wall facing
    • E01F8/0058—Grate-style, e.g. as wall facing with damping material, e.g. rockwool, sand
    • 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
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/02—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise
    • E01F8/021—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic specially adapted for sustaining vegetation or for accommodating plants ; Embankment-type or crib-type noise barriers; Retaining walls specially adapted to absorb or reflect noise with integral support structure
    • E01F8/026—Live wall, e.g. interlaced twines

Definitions

  • the present invention relates to a noisescreen comprising at least one row of live, essentially vertical tree stems or branches set in a growth medium, and a layer of a soundproofing material disposed on one side of this row.
  • noisescreens for protecting the environment surrounding noise exposed areas, such as heavily trafficked roads, railways, and airports, against noise.
  • DE 41 26 657 C1 discloses a noisescreen comprising two parallel rows of live willow stems or branches placed in spaced relationship, the lower ends of which are dug into the ground, and where the space between these rows of willow stems or branches is filled with soil.
  • This construction offers the possibility of composing a multi-story noisescreen, as the soil fill between the lowermost rows of willow stems or branches can constitute foundation for two corresponding rows of willow stems or willow branches set on top of and partially dug into the soil fill between the two first-mentioned rows.
  • a corresponding noisescreen construction is disclosed in DK 161 981 B.
  • Each row of willow stems or branches is retained together by longitudinal, horizontally extending poles positioned on opposite sides of the row, and wires, strings or the like of leather, rubber or plastic are used for tying together the said poles.
  • EP 0 128 245 B1 discloses a method for the preparation of a noisescreen consisting of two rows of live, planted tree stems or branches between which there is disposed a plate shaped material of e.g. metal or glass fibre reinforced plastic, and where the stems or branches on opposite sides of the plate shaped material are interconnected by means of bolts which have been passed through holes in the plate shaped material.
  • a plate shaped material e.g. metal or glass fibre reinforced plastic
  • Noisescreens in which soil is used as soundproofing material, suffer from the disadvantage of being expensive to erect as they must be built on site and call for use of heavy transport equipment.
  • noisescreens of the kind stated in the preamble where the soundproofing material is plates of metal or plastic, does not always provide a satisfactory noise reduction or absorption.
  • normally occurring noise such as traffic noise
  • the invention is based on the discovery that the comparatively low weight and the rigidity of mineral wool batts together with layers of tree stems or branches and interconnected stiffening elements can be combined to form a transportable noisescreen element from which efficient noisescreens can easily be built on the site of use.
  • a particularly preferred embodiment of the noisescreen according to the invention is characterized in that there is layer of adjacent, live tree stems or branches on both sides of the layer of soundproofing material.
  • Such an noisescreen is particularly stable and offers the advantage that, as viewed from either side, it has a beautiful appearance.
  • noisescreen elements can advantageously be used in which a layer of tree stems or branches has been positioned only on the visible side of the noisescreen.
  • the mounting on the site of use only requires that two parallel trenches are dug with the same mutual distance as the distance between the two layers of tree stems or branches, that the end of each noisescreen element which is not filled up with the mineral fibre layer is positioned with the free ends of the tree stems or branches down in the trenches, and that soil or another growth medium is filled up round the said stem or branch ends, and that irrigation is optionally performed.
  • the two layers of tree stems or branches will quickly start leafing, and the noisescreen formed will obtain a beautiful green colour and will mingle well with nature.
  • the noisescreen will, as a consequence of the leaves fading, assume other colours before the leaves, as it may be, completely fall off.
  • the mineral fibre batts or mats are preferably constituted by glass wool, slag wool or rockwool, held together by a binder, such as a heat cured binder, e.g. a phenolformaldehyde resin.
  • a binder such as a heat cured binder, e.g. a phenolformaldehyde resin.
  • the density of the mineral fibre batts or mats is preferably between 25 and 450 kg/m 3 , particularly preferred between 40 and 200 kg/m 3 .
  • the mineral fibre batts or mats may be composed of several layers with different density, e.g. a centre layer with a comparatively low density, and two or more encompassing layers with higher density, and optionally increasing in density with increasing distance from the centre layer.
  • the average density for the mineral fibre layer is preferably between 80 and 150 kg/m 3 , and particularly preferred between 100 and 150 kg/m 3 .
  • the thickness of the mineral fibre layer formed from mineral fibre batt or mat is preferably between 10 and 40 cm. Optimum noise reduction is obtained when the density of the mineral fibre layer, expressed as weight per area unit, is between 15 and 40 kg/m 2 , and particularly preferred between 20 and 25 kg/m 2 .
  • the mineral fibre layer resistant to external impacts, such as thrown-up pebbles and weather conditions, it may be desirable to use batts or mats with hard and durable surface layers.
  • the resistance of the mineral fibre layer to impacts can also be increased by covering it with an optionally fibrous cover material, e.g. glass fibre web, on both sides.
  • the mineral fibre layer can, if desired, be made water-absorbent by treatment with a surfactant.
  • the layer/layers preferably consists/consist of tree stems or branches with a length from 2 to 3 m. If desired, tree stems or branches having a length as short as 1 m or as long as 5 m, may, however, be used.
  • Each layer is preferably composed of 50-150 tree stems, more preferably of 70-100 tree stems, and particularly preferred of 80-90 tree stems.
  • the noisescreen elements are preferably produced with a length between 1 and 4 m, and, for the sake of transportation, particularly preferred with a length of about 2.2 m.
  • Stems or branches from willows are preferably used, as such stems or branches have a special capability for rapidly rooting, and do not require special soil.
  • stem and foliage colours can be obtained, varying between yellow, brown, red or green, and with correspondingly varying autumn colours, which offers the possibility of obtaining noisescreens with particularly beautiful colour effects.
  • the interconnected stiffening elements which serve to keep the layers of willow stems or branches urged against the opposite sides of the mineral fibre layer, and consequently to ensure the integrity of the noisescreen element, are preferably constituted by poles with round, semicircular, rectangular or square cross-section.
  • the poles are preferably flat on the side facing the tree stems or branches.
  • the stiffening poles which are preferably positioned at two levels on either side of the noisescreen element, may consist of untreated or impregnated wood or plastic, or of another, e.g. recycled, material.
  • stiffening poles of plastic are preferred, and particularly preferred of PVC.
  • connection between the stiffening elements on opposite sides of the noisescreen element is preferably obtained by means of bolts, in particular galvanized bolts, with threaded ends, where the bolts have been passed through holes in the stiffening elements and the mineral fibre layer, and where tensioning has been obtained by screwing nuts onto the threaded bolt ends.
  • connecting means e.g. metal wires, for connecting the stiffening elements on the opposite sides of the noisescreen element.
  • a protective material can be interposed between the stiffening elements and the layers of tree stems or branches.
  • a protective material may be disposed on both sides of each layer of tree stems or branches.
  • the protective layer is preferably elastic and weather-resistant.
  • An example of a well suited material is polyethylene foam, e.g. a product sold under the trademark Alviolux®.
  • the noisescreen shown in the drawing comprises two rows 1 and 2 of willow stems 3, the lowermost ends 4 of which are set into soil 5. Between the rows of willow stems 3 there is disposed a soundproofing material in the form of two layers 6 and 7 of relatively loose mineral wool (weight about 80 kg/m 3 ) encompassed by two layers 8 and 9 or relatively dense mineral wool (weight about 200 kg/m 3 ).
  • the rows 1 and 2 of willow stems 3 are held together by transverse laths 10 and 11 positioned on opposite sides of the noisescreen and transversely to the longitudinal direction of the willow stems, and by bolts 12 with a bolt head 13 and a nut 14 extending throughout the entire noisescreen element.
  • the rows 1 and 2 of willow stems are kept at a distance from the layers 8 and 9 of mineral wool by means of transverse wooden fillets 15, and between the laths 10 and 11 and the rows of willow stems 3 there are disposed protective strips 16 of an elastic material. In the same way, corresponding protective strips 17 are disposed between the wooden fillets 15 and the rows of willow stems 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)

Claims (11)

  1. Lärmschutzwand, welche mindestens eine Reihe von im Wesentlichen vertikalen, lebenden Baumstämmen oder -ästen aufweist, die in ein Wachstumsmedium eingesetzt sind, sowie eine Schicht aus schalldämmendem Material, das auf der einen Seite dieser Reihe angeordnet ist, wobei die Lärmschutzwand aus mindestens einem Lärmschutzelement besteht, das eine Schicht aus schaudämmendem Material in Form mindestens einer Mineralfasermatte und eine Schicht aus benachbart angeordneten lebenden Baumstämmen oder -ästen aufweist, und die aus lebenden Baumstämmen oder -ästen bestehende Schicht an ihrem unteren Ende ein größeres Ausmaß hat als die aus schalldämmendem Material bestehende Schicht, wobei die aus Baumstämmen oder -ästen bestehende Schicht und die aus schalldämmendem Material bestehende Schicht durch untereinander verbundene Aussteifungselemente zusammengehalten werden, die auf entgegengesetzten Seiten des Lärmschutzwandelementes angeordnet sind und sich im Wesentlichen senkrecht zur Längsrichtung der Baumstämme oder -äste und über die gesamte Länge des Lärmschutzwandelementes erstrecken.
  2. Lärmschutzwand nach Anspruch 1, dadurch gekennzeichnet, dass auf jeder Seite der aus schalldämmendem Material bestehenden Schicht eine Schicht benachbart angeordneter lebender Baumstämme oder -äste vorhanden ist.
  3. Lärmschutzwand nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Mineralfasermatte aus Glaswolle, Schlackenwolle oder Steinwolle besteht, die durch ein Bindemittel zusammengehalten wird.
  4. Lärmschutzwand nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Mineralfasermatte eine Dichte zwischen 25 und 450 kg/m3, vorzugsweise zwischen 40 und 200 kg/m3 aufweist.
  5. Lärmschutzwand nach Anspruch 4, dadurch gekennzeichnet, dass, die Mineralfasermatte in Dickenrichtung veränderliche Dichte aufweist.
  6. Lärmschutzwand nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dicke der Mineralfasermatte zwischen 10 und 40 cm beträgt.
  7. Lärmschutzwand nach Anspruch 6, dadurch gekennzeichnet, dass die Mineralfasermatte ein Flächengewicht zwischen 25 und 40 kg/m2, und vorzugsweise zwischen 20 und 25 kg/m2 hat.
  8. Lärmschutzwand nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Baumstämme oder -äste eine Dicke zwischen 1 und 3 cm haben.
  9. Lärmschutzwand nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aussteifungselemente Stäbe aus Holz oder Kunststoff sind.
  10. Lärmschutzwand nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Aussteifungselemente mittels Gewindebolzen untereinander verbunden sind.
  11. Lärmschutzwand nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Schutzmaterial zwischen die Aussteifungselemente und die Baumstämme oder -äste eingelegt ist.
EP98951287A 1997-10-28 1998-10-27 Lärmschutzwand Expired - Lifetime EP1032733B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK122697 1997-10-28
DK122697 1997-10-28
PCT/DK1998/000466 WO1999022075A1 (en) 1997-10-28 1998-10-27 A noisescreen

Publications (2)

Publication Number Publication Date
EP1032733A1 EP1032733A1 (de) 2000-09-06
EP1032733B1 true EP1032733B1 (de) 2003-07-09

Family

ID=8102411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98951287A Expired - Lifetime EP1032733B1 (de) 1997-10-28 1998-10-27 Lärmschutzwand

Country Status (8)

Country Link
EP (1) EP1032733B1 (de)
AU (1) AU9736998A (de)
CA (1) CA2308403A1 (de)
DE (1) DE69816330T2 (de)
DK (1) DK1032733T3 (de)
NO (1) NO20002112D0 (de)
PL (1) PL340407A1 (de)
WO (1) WO1999022075A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0011188D0 (en) 2000-05-09 2000-06-28 Rockwool Int Noise screens and their construction
DK200000379U3 (da) * 2000-12-15 2001-02-09 Pilebyg Aps Støjskærm
NL1027258C2 (nl) 2004-10-15 2006-04-19 First B V Begroeid geluidswerend scherm bestaande uit beplante panelen en ondersteuningsconstructie.
EP1770216A1 (de) 2005-09-29 2007-04-04 Rockwool International A/S Schallabsorbierendes Element und Lärmschutzschirm mit einem solchen Element
NL2014010C2 (nl) * 2014-12-18 2015-06-29 Kokosystems Holding B V Geluidwerend paneel voorzien van buizen bekleed met vezelmateriaal.
NL2015880B1 (en) * 2015-11-30 2017-06-14 Kokosystems Holding B V Method for Manufacturing of a Soundproof Panel using a Pressing Unit, a Pressing Unit, a Soundproof Panel and a Soundproof Wall.
AT525271B1 (de) * 2021-09-02 2023-02-15 Birgit Van Duyvenbode Schallschutzelement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8502467A (nl) * 1985-09-10 1987-04-01 Riede Adviesbureau Werkwijze voor het oprichten van een geluidwerende wand gebaseerd op al dan niet wortels bezittende takken alsmede onder toepassing van deze werkwijze verkregen wand.
DE9001449U1 (de) * 1989-09-08 1990-04-12 Filigran Bauelemente AG, Oberdiesbach Plattenelement für eine Lärmschutzwand
DE4126657C1 (en) * 1991-08-13 1992-08-27 Karl-Heinz 8050 Freising De Freitag Vegetative sound barrier with longitudinal walls - has each wall of longitudinal elements with vertical, tightly packed willow braches
IT234148Y1 (it) * 1994-10-07 2000-02-23 Vivaio Tri Pass Di Facchinetti Struttura ad elementi componibili ed a collare apribile, particolarmente adatta per il sostegno di piante trapiantate al fine

Also Published As

Publication number Publication date
PL340407A1 (en) 2001-01-29
DE69816330T2 (de) 2004-05-13
NO20002112L (no) 2000-04-26
DE69816330D1 (de) 2003-08-14
EP1032733A1 (de) 2000-09-06
WO1999022075A1 (en) 1999-05-06
CA2308403A1 (en) 1999-05-06
AU9736998A (en) 1999-05-17
DK1032733T3 (da) 2003-08-18
WO1999022075A9 (en) 2000-04-27
NO20002112D0 (no) 2000-04-26

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