EP2019891B1 - Holzmast, insbesondere leitungsmast - Google Patents

Holzmast, insbesondere leitungsmast Download PDF

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Publication number
EP2019891B1
EP2019891B1 EP07725424.1A EP07725424A EP2019891B1 EP 2019891 B1 EP2019891 B1 EP 2019891B1 EP 07725424 A EP07725424 A EP 07725424A EP 2019891 B1 EP2019891 B1 EP 2019891B1
Authority
EP
European Patent Office
Prior art keywords
pole
wooden
metal
wooden pole
region
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.)
Not-in-force
Application number
EP07725424.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2019891A1 (de
Inventor
Andreas Heidel
Hans-Norbert Marx
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.)
FUERSTENBERG-THP GmbH
Original Assignee
FUERSTENBERG-THP GmbH
FUERSTENBERG THP GmbH
Fuerstenberg-Thp GmbH
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 FUERSTENBERG-THP GmbH, FUERSTENBERG THP GmbH, Fuerstenberg-Thp GmbH filed Critical FUERSTENBERG-THP GmbH
Priority to PL07725424T priority Critical patent/PL2019891T3/pl
Priority to SI200731412T priority patent/SI2019891T1/sl
Publication of EP2019891A1 publication Critical patent/EP2019891A1/de
Application granted granted Critical
Publication of EP2019891B1 publication Critical patent/EP2019891B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/22—Sockets or holders for poles or posts
    • E04H12/2292—Holders used for protection, repair or reinforcement of the post or pole
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
    • E04H12/02—Structures made of specified materials
    • E04H12/04—Structures made of specified materials of wood

Definitions

  • the present invention relates to a wooden mast, in particular in the form of a round timber for use as a pylon, having the features of the preamble of claim 1, and the use of such a wooden mast, and a method for mechanical and biological stabilization of anchored in the ground wooden poles.
  • Wood and wood components that are intended to be installed in the soil or water are subject to high infection pressure by wood-degrading organisms, which can considerably limit the service life of the components.
  • the wood-degrading organisms include in particular wood-destroying fungi from the group of Basidiomycetes (eg sponges, leaflets) and / or ascomycetes from the group of fungi imperfecti (eg soft rot) and wood-destroying insects, predominantly from the family Cerambycidae ( longhorn beetle).
  • wooden poles are used for use as a carrier of power lines and telephone lines as well as for fence posts usually in the pressure-impregnated state, d. H. a wood preservative is pressed under pressure into the wood.
  • the weak point of piles and masts, which are anchored in the ground, is the transition area between soil and atmosphere, where putrefactive bacteria, fungi, etc. attack the wood. While the average lifespan of the areas below and above the vulnerable area is several Decades, this transitional area, depending on the nature of the soil, even in the impregnated state, often only has a lifespan of about 5 to 10 years. To make matters worse, that many particularly effective impregnating agents that have been used so far, due to stricter environmental legislation, eg. B. because of the threat to groundwater, are prohibited.
  • KVD impregnation i. H. the boiler vacuum pressure impregnation, in which the impregnation solution is conveyed by means of pressure differences in the wood.
  • Erd-Luft-area In telecommunications masts, the part of the masts is referred to as Erd-Luft-area, which extends from about 40 to 60 cm below to about 20 to 30 cm above the ground level. In this area, the admission of air and moisture forms optimal conditions for the existence of wood-destroying organisms. In addition, the greatest compressive and tensile forces occur in the case of mechanical loads on a mast.
  • DE 38 23 353 A1 is a method for preserving or impregnating anchored in the ground wooden poles described in which in the transition zone between soil and atmosphere, a shrink tube is arranged, which is shrunk with its downwardly facing end on the wooden pole, whereupon then in the annulus between the shrink-open tube open to the top and the wood mast a fäulnishemmender substance is introduced in free-flowing or liquid form. Subsequently, the upwardly facing end of the shrink tube is also shrunk onto the wooden pole.
  • An additional, particularly critical aspect of decay formation in the earth-air area is that under mechanical loads also the greatest compressive and tensile forces occur.
  • a mast that is weakened in this area breaks down at ground level under mechanical stress.
  • the breaking mechanism of wood weakened by microorganisms differs substantially from a healthy wood. In weakened wood, the breakage is seamless and without any warning, while in healthy wood, the break is usually announced and the fiber structure of the wood counteracts the breakage. This is so far in particular for telephone poles of great importance, since on telephone lines are always perform maintenance work in which, for example, a telephone pole must be climbed by a technician. This climbing of the telephone mast leads to a heavy mechanical load, which can easily lead to a breakage in the case of a weakened mast. In this way, it always comes back to accidents with serious injuries or even fatal outcome.
  • EP 0 400 447 B1 do not provide additional protection against breakage.
  • EP 0 750 084 A1 discloses all features of the preambles of claims 1 and 14.
  • the replacement of the wood as a building material for poles, hop poles, water timbers, palisades or piles for fruit and wine cultivation by other materials has been discussed again and again, but due to the numerous advantages of wood, such. For example, the low weight, the high mechanical strength, the low-energy production, the fundamental processing, the availability as a renewable resource and the acceptance as part of the landscape, not enforce.
  • the essence of the invention is that the wooden pole to be treated is first impregnated in the usual way, then in the transition zone between soil and atmosphere with a metal, in particular in the form of a network, a film, a sleeve or a sheet is wrapped and then in the critical earth-air area, together with the metal coil is wrapped with a shrink film.
  • a metal in particular in the form of a network
  • a film, a sleeve or a sheet is wrapped and then in the critical earth-air area, together with the metal coil is wrapped with a shrink film.
  • the shrink film protrudes in the longitudinal direction both above and below on the metal and closes the entire critical area tight.
  • the metal has an oligodynamic effect.
  • the sterilizing effect of metal ions in smallest quantities.
  • metals are copper, zinc and copper-containing alloys, e.g. Brass and bronze, or silver alloys.
  • Other oligodynamic metals such as silver are known, but because of their availability, their price and their material properties, the abovementioned metals are preferably used according to the invention.
  • the metal Since the metal not only has the function of fungicidal or biocidal effect, but also to provide mechanical stabilization in the ground-air area of the mast, the metal is used in layer thicknesses of 0.05 to 2 mm. The preferred range is 0.1 to 0.3 mm layer thickness.
  • the metal When wrapping the wooden mast with the metal in the form of a foil, a net, a cuff or a sheet, make sure that the mast is covered with metal in the earth-air area over its entire radius. To ensure this, for example, in the case of a single-layer arrangement of a film, an overlap of at least approximately 50 to 100 mm.
  • metal or its ions have a germicidal effect and the metal coil itself acts as a depot for such ions, which then optionally diffused by the solvent of the impregnating agent diffuse into the interior of the wood.
  • the metal coil is firmly attached to the wood and can be additionally prevented by suitable measures, such as attachment with nails, from slipping.
  • the wood mast prepared in this way is then covered with a shrink film over the entire earth-air area.
  • the film is in the shrunken state directly to the metal and ends in the longitudinal direction of the mast by about 50 to 100 mm above and below the metal-wrapped area. In this projecting area, the film is then tight and close to the wooden mast.
  • the film has a thickness of about 0.5 to 5 mm in the shrunken state and covers a length of 400 to 1700 mm depending on the application.
  • a particularly good biological stabilization is obtained when the wooden mast is first perforated, then pressure-impregnated, then wrapped according to the invention with a metal foil and finally covered with a plastic film.
  • Excellent durability of masts is obtained when a wood preservative containing copper in the form of aminocomplexes is used for impregnation.
  • a further preferred embodiment provides that a shrink film in the form of a shrink tube made of polyolefin is used, which has a wall thickness of about 0.1 to 1.0 mm, for example, in expanded form, and then shrinking to a wall thickness of about 0 , 5 to 5 mm, preferably about 2.0 to 3.0 mm.
  • the shrinkage itself can be carried out in the usual way by means of a gas burner by hand.
  • a preferred, because economically favorable embodiment provides to perform the shrinkage in an automatic shrinking system with circularly arranged shrink burners. In this way, a particularly uniform enclosure of the critical earth-air area of the wooden mast can be ensured.
  • a peeled, ready-to-handle spruce raw spruce with a length of approx. 12 meters and an average diameter of approx. 200 mm is placed in its earth-air area over a length of approx. 900 mm (from approx. 1,500 mm above the lower end of the mast ) perforated using a mast drilling machine.
  • the wooden pole is impregnated in the usual way with a copper-containing impregnating salt in the boiler pressure process.
  • the wooden pole is wrapped with a brass foil having a length of 1,000 mm, a thickness of 0,3 mm and a width of 700 mm, in such a way that the perforated area is overlapped in the longitudinal direction by the metal foil.
  • a shrink tube made of polyolefin with a length of about 1,600 mm is pulled over the wooden mast so wrapped.
  • the heat-shrinkable tube is arranged so that it overlaps at the lower end of the earth-air region, which is when using the wooden mast in the ground, the metal coil by about 500 mm and in the upper part of the earth-air zone, as visible area above the ground level is arranged to overlap by about 100 mm.
  • the shrink tube has a diameter of about 300 mm in the expanded state with a film thickness of 0.7 mm. After being treated in an automatic shrinking machine, the plastic film fits snugly against the metal wrap and the wood and shows a film thickness of approx. 3.1 mm.
  • FIG. 1 shows a wooden mast 1 which is provided in the earth-air area above and below the ground level A over a length B with a perforation 4.
  • the perforated area B is wrapped over a length C with a metal foil 2.
  • the entire earth-air region is covered with a shrink film 3 which extends over a length D and covers both the perforation region B and the metal-wrapped region C and protrudes in the longitudinal direction, so that the entire critical earth-air Area with the plastic film 3 is tightly closed.
  • the mast 1 is off FIG. 1 shown in cross section.
  • the perforations 4 can be seen, which lead into the mast interior.
  • the mast 1 is wrapped in its circumference directly and tightly with a metal foil 2, which in turn is closely enclosed by the shrink film 3.
  • the FIG. 3 turns the mast 1 off FIG. 1 before the treatment. From this presentation, the treatment principle is particularly well recognized.
  • the metal foil 2 is arranged overlapping with an overlap 5 around the mast 1.
  • the shrink tube 3 is arranged in the expanded state.
  • FIG. 4 represents a schematic structure of the treated wooden mast 1. Similar to in FIG. 1 it is a partial sectional view, wherein in particular the critical earth-air region is partially shown as a section.
  • the mast 1 is in turn provided over the area B with a perforation 4.
  • the perforated area B is wrapped with the metal foil 2, which extends beyond the perforated area B in the longitudinal direction by the lengths G 1 and G 2 and thus completely covers the perforated area.
  • the wrapped with the metal area C in turn is covered with shrink film 3, which extends beyond the metal-wrapped area C in the longitudinal direction above the ground level A by the length H 1 and below the ground level A by the length H 2 and shrunk in the critical state Earth-air area including the metal collar 2 includes.
  • the dimension F is the burial depth of the wooden mast 1 again, which accounts for about 1/6 of the total mast length, for example, for telegraph poles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EP07725424.1A 2006-05-22 2007-05-22 Holzmast, insbesondere leitungsmast Not-in-force EP2019891B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL07725424T PL2019891T3 (pl) 2006-05-22 2007-05-22 Drewniany słup, w szczególności słup sieci elektrycznej
SI200731412T SI2019891T1 (sl) 2006-05-22 2007-05-22 Lesen drog, še zlasti drog za napeljavo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006024127A DE102006024127A1 (de) 2006-05-22 2006-05-22 Holzmast, insbesondere Leitungsmast
PCT/EP2007/004524 WO2007134835A1 (de) 2006-05-22 2007-05-22 Holzmast, insbesondere leitungsmast

Publications (2)

Publication Number Publication Date
EP2019891A1 EP2019891A1 (de) 2009-02-04
EP2019891B1 true EP2019891B1 (de) 2013-12-04

Family

ID=38606456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07725424.1A Not-in-force EP2019891B1 (de) 2006-05-22 2007-05-22 Holzmast, insbesondere leitungsmast

Country Status (5)

Country Link
EP (1) EP2019891B1 (pl)
DE (1) DE102006024127A1 (pl)
PL (1) PL2019891T3 (pl)
SI (1) SI2019891T1 (pl)
WO (1) WO2007134835A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015101674U1 (de) 2015-04-02 2016-07-05 Induo Gesellschaft Zur Verwertung Von Schutzrechten Mbh & Co. Kg Schutzbandage

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107781A1 (de) 2011-07-15 2013-01-17 Carl Scholl Gmbh Bandage für Holzmast
DE102011114472A1 (de) * 2011-09-28 2013-03-28 Holzindustrie Fürst zu Fürstenberg GmbH & Co. KG Verfahren zum Schutz von Holz im Bodenkontakt
EP2574435A3 (de) 2011-09-28 2013-06-05 Fürstenberg-THP GmbH Hölzer in dauerndem Boden- oder Wasserkontakt
FI9863U1 (fi) * 2012-03-16 2012-11-08 Tehomet Oy Puusta valmistettu valaisinpylväsrakenne
DE102016103895A1 (de) 2016-03-03 2017-09-07 Nicolas Steiner Im Erdreich verankerbarer Mast
DE202016101163U1 (de) 2016-03-03 2016-04-26 Nicolas Steiner Im Erdreich verankerbarer Mast
DE102018003341A1 (de) 2018-04-24 2019-10-24 Kurt Obermeier Gmbh & Co. Kg Physikalische Entkopplung der ober- und unterirdischen Holzfeuchten von Holzbauteilen im Erd- oder Wasserkontakt

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823353A1 (de) * 1988-07-09 1990-01-11 Kabelmetal Electro Gmbh Verfahren zum haltbarmachen bzw. impraegnieren von holzmasten
EP0400447A1 (de) * 1989-06-02 1990-12-05 kabelmetal electro GmbH Anordnung zum Schutz von Holzmasten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1521285A (en) 1923-10-15 1924-12-30 Axel B Erickson Telephone and telegraph pole
DE2043489A1 (en) * 1970-09-02 1972-03-09 Hoffmann, Robert, Dipl. Ing., 3500 Kassel-Wilhelmshöhe Mast protection - with foot bound with impregnated bandage and covered by shrunk pvc with protective fluid reservoir
US5326410A (en) * 1993-03-25 1994-07-05 Timber Products, Inc. Method for reinforcing structural supports and reinforced structural supports
ATE192534T1 (de) 1995-06-20 2000-05-15 Biotechnology Intellectual Pro Auskleidung zum schutz von pfosten gegen untergrundverfall
DE19536328A1 (de) * 1995-09-29 1997-04-03 Remmers Bauchemie Gmbh Mittel zum Schutz von technischen Materialien vor Schädigung und Zerstörung durch Schadorganismen auf Basis natürlicher Wirkstoffe
US20030221390A1 (en) 2002-05-30 2003-12-04 Docter Lloyd W. Protector for chemically treated wooden utility pole and surrounding environment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823353A1 (de) * 1988-07-09 1990-01-11 Kabelmetal Electro Gmbh Verfahren zum haltbarmachen bzw. impraegnieren von holzmasten
EP0400447A1 (de) * 1989-06-02 1990-12-05 kabelmetal electro GmbH Anordnung zum Schutz von Holzmasten

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015101674U1 (de) 2015-04-02 2016-07-05 Induo Gesellschaft Zur Verwertung Von Schutzrechten Mbh & Co. Kg Schutzbandage

Also Published As

Publication number Publication date
EP2019891A1 (de) 2009-02-04
PL2019891T3 (pl) 2014-04-30
SI2019891T1 (sl) 2014-03-31
WO2007134835A1 (de) 2007-11-29
DE102006024127A1 (de) 2007-11-29

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