NZ745302B2 - Apparatus and method for fastening a composite pole to the ground - Google Patents

Apparatus and method for fastening a composite pole to the ground Download PDF

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Publication number
NZ745302B2
NZ745302B2 NZ745302A NZ74530217A NZ745302B2 NZ 745302 B2 NZ745302 B2 NZ 745302B2 NZ 745302 A NZ745302 A NZ 745302A NZ 74530217 A NZ74530217 A NZ 74530217A NZ 745302 B2 NZ745302 B2 NZ 745302B2
Authority
NZ
New Zealand
Prior art keywords
ground
fastening element
fastening
slit
composite pole
Prior art date
Application number
NZ745302A
Other versions
NZ745302A (en
Inventor
Ole Gunnar Fjelde
Torbj Rn Fjelde
Sigurd Habakk
Original Assignee
Comrod 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
Priority claimed from NO20160270A external-priority patent/NO343861B1/en
Application filed by Comrod As filed Critical Comrod As
Publication of NZ745302A publication Critical patent/NZ745302A/en
Publication of NZ745302B2 publication Critical patent/NZ745302B2/en

Links

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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/60—Upright bodies, e.g. marker posts or bollards; Supports for road signs
    • E01F9/658—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing
    • E01F9/673—Upright bodies, e.g. marker posts or bollards; Supports for road signs characterised by means for fixing for holding sign posts or the like
    • E01F9/685—Subsoil means, e.g. foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • 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
    • 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
    • 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
    • E04H12/2207—Sockets or holders for poles or posts not used
    • E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
    • 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
    • E04H12/2207—Sockets or holders for poles or posts not used
    • E04H12/2215—Sockets or holders for poles or posts not used driven into the ground
    • E04H12/223—Sockets or holders for poles or posts not used driven into the ground with movable anchoring elements; with separately driven anchor rods
    • 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
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2269—Mounting poles or posts to the holder in a socket
    • 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
    • E04H12/2253—Mounting poles or posts to the holder
    • E04H12/2276—Clamping poles or posts on a stub

Abstract

The invention relates to a one-piece fastening element (10) for fastening a hollow composite pole (8) to the ground (4) at a location where a slit-formed opening (6) is present in the ground (4), wherein the fastening element (10) has a lower end portion (12) that is configured for being positioned in the slit-formed opening (6), wherein a conical portion of the composite pole (8) is abutting a conical upper portion (18) of the fastening element (10). The invention also relates to a method for fastening a hollow composite pole (8) to the ground (4). in the slit-formed opening (6), wherein a conical portion of the composite pole (8) is abutting a conical upper portion (18) of the fastening element (10). The invention also relates to a method for fastening a hollow composite pole (8) to the ground (4).

Description

James & Wells Ref: 309964NZ APPARATUS AND METHOD FOR ING A COMPOSITE POLE TO THE GROUND FIELD OF THE INVENTION This invention relates to an apparatus for fastening a hollow composite pole to the ground where a slit formed opening is present in the ground. The invention also relates to a method for fastening a hollow composite pole to the .
BACKGROUND OF THE INVENTION It is known to fasten composite poles in the ground by excavating a recess, and thereafter positioning the ite pole in the recess and fill in around the pole. Regarding poles for overhead power lines, such a method will often involve relatively large environmental damage, particularly when a recess is made in rock. When fastening poles by use of said , frost damage may occur due insufficient draining.
It is also known to mount a composite pole to a column raised from the ground. The column may be made from concrete and having reinforcement that extends into the ground.
The composite pole may be inserted over the . If the column is made from te , it is necessary to bring the concrete to the position of the column often by use of a helicopter, or make concrete at the position of the column. Both methods comprises extra costs and work.
WO2004/101914 discloses a hollow pole that is drilled into a slit the ground.
Documents EP1911912A2, WO2004/101914A1, GB2444411 and GB2429229A show other solutions from the prior art.
James & Wells Ref: 309964NZ SUMMARY OF THE INVENTION The invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art, or at least provide a useful alternative to prior art.
The object is achieved through features, which are specified in the description below and in the claims that follow.
The invention is defined by the independent patent claims. The dependent claims define advantageous embodiments of the invention.
In a first aspect, the invention relates more particularly to fastening t in accordance with claim 1.
The invention concerns having a slit-formed opening, being circular, in the ground, where a fastening element is oned in the slit-formed opening. The fastening element has a conical upper portion above the . A hollow composite pole, has a complementary conical inner portion at its lower end, and is positioned on and abutting the fastening element.
The lower end portion of the fastening element is circular for allowing the fastening element to be placed in the slit formed opening being circular, wherein the fastening element is ece.
By hollow means that the composite pole must have an inner opening, at least in the portion that is moved over the fastening element.
The slit formed opening may be formed by ng or hammering a body into the ground.
The fastening element may be equipped with drill elements at its lower end portion to enable the fastening element to be used as a drill.
The drill elements may se metal or ceramic material or combinations thereof.
In a second aspect the invention relates more particularly to a method for ing a hollow ite pole for overhead power lines to the ground in accordance with claim 5.
The method comprises fixing the fastening element to the ground, for instance by ve or a concrete based material.
The method may comprise making the slit formed opening by drilling into the ground.
James & Wells Ref: 309964NZ The method may comprise making the slit formed opening by hammering the ing element into the ground.
The method comprises providing the lower end n of the fastening element with drill ts and drilling the fastening element into the ground.
The fastening element may be made from composite material or metal or combinations thereof.
If parts of the ground that is positioned on the inner side of the slit should loosen or where it is advantageous to have it removed partly or fully, the material on the inner side of the slit may be at least partly removed.
When drilling in soil or march, it may be advantageous to have frost in the ground to avoid movement in the ground during drilling.
Tests show that the drill or the fastening element must be d with the vertical axes prior to being moved into the ground.
The apparatus and method according to invention solves the problem of fastening a hol- low composite pole to the ground in a vely simple and cost effective way.
BRIEF UCTION OF THE DRAWINGS In the following is described examples of preferred embodiments and methods illustrated in the ac-companying drawings, wherein: Fig. 1 shows a vertical section of a drill and a power drill during drilling of a slit formed opening in the ground according to the invention; Fig. 2 shows a vertical section of a composite pole that has been moved into the slit formed opening that was drilled by use of the drill in fig. 1; Fig. 3 shows an embodiment where a fastening element has been moved into the slit formed opening that is drilled by the use of the drill shown in fig. 1, and where the fastening element is fixed to the composite mast; James & Wells Ref: 309964NZ Fig. 4 shows another embodiment where the fastening element, at its lower portion, is equipped with drill bodies: Fig. 5 shows a section IV-IV in fig. 4; and Fig. 6 shows in a larger scale a segment V-V in fig. 5 of the lower portion pf the fastening element and a drill body.
DETAILED DESCRIPTION OF THE EMBODIMENTS On the drawings, the reference numeral 1 denotes a drill that by the help of a power drill 2 is under displacement into the ground 4. The ground 4 may tute for e rock, soil, or march, alternatively combination thereof.
The power drill 2 is lly aligned and is fixed to the ground 4 or another suitable, not shown device. There after the power drill 2 that may be electrically or hydraulically driven, displaces the drill 1 into the ground 4 while rotating the drill 1. Thus, a slit formed opening 6 is formed in the ground 4. The drill 1 is then removed from the slit formed opening 6.
A ite pole 8 that has been moved into the slit formed opening 6 is shown in fig. 2.
Additional fixing of the composite pole 8 to the ground 4 may be achieved by inserting grouting, fixing compound or other al (not shown) in between the composite pole 8 and the ground 4.
In an embodiment of the invention, shown in fig. 3, a sleeve formed fastening element 10 is positioned in the slit formed opening 6. Additional fixing of the fixing element 10 to the ground 4 may be carried out as described for the composite pole 8. A composite pole 8 that is l inside is placed about the fastening element 10 that has a conical upper portion 18, and moved against the fastening element until abutment is established.
In some cases, as when the ground 4 mainly constitutes suitable soil, the fixing element 10 may be forced into the ground 4 by hammering.
In a further alternative embodiment as shown in fig. 4, the ing element 10 is by its lower end portion 12 equipped with several drill elements 14. The section IV-IV in fig 5 shows a possible distribution of the drill elements 14 about the centre axis 16 of the ing element 10. The drill elements may be made from material from the fastening ele- ment 10 or constitute other materials that is fixed to the fastening element 10.
James & Wells Ref: NZ A typical drill element 14 is shown in fig. 6 where the drill t 14 that constitutes hard metal, is braced to the in use lover end portion lower end portion 12 of the fixing element The fixing element 10 shown in fig. 4 is shown in two parts where in use an upper portion 18 that is fixed to the composite pole 8 is fixed to the in use lower portion 22 of the fixing element 10 by a flange connection 20. The lower n 22 is here drilled into the ground It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodi- ments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. Use of the verb "comprise" and its ations does not exclude the presence of elements or steps other than those stated in a claim. The article "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The mere fact that certain measures are d in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
James & Wells Ref: 309964NZ P a t e n t c l a i m s 1. Fastening element for fastening a hollow composite pole for overhead power lines to the ground at a location where a slit-formed opening is present in the ground, wherein the fastening element has a lower end portion that is configured for being positioned in the slit-formed opening, wherein the fastening element has a conical upper portion, n, in operational use of the ing element, a conical portion of the composite pole is configured for moving over the conical upper portion of the fastening element until abutment with the fastening t is ished, wherein the lower end portion of the fastening element is circular for allowing the fastening element to be placed in the slit formed opening being circular, wherein the fastening t is one-piece. 2. The fastening element according to claim 1, n the fastening element at its lower end portion is equipped with drill elements. 3. The fastening element according to claim 2, wherein the drill elements comprise metal. 4. The ing element according to claim 2, wherein the drill elements comprise ceramic material.
. Method for fastening a hollow composite pole for overhead power lines to the ground, wherein the method comprises: - making a slit-formed g in the ground; - inserting the fastening element in accordance with claim 1 into the slit-formed opening, and - moving the composite pole that is conical, over the fastening element until abutment is established. 6. The method according to claim 5, wherein the method comprises fixing the fastening t to the ground. 7. The method according to claim 5 or 6, wherein the method comprises making the slit-formed opening by drilling into the ground. 8. The method according to claim 6 or 7, wherein the method comprises making the ormed opening by hammering the fastening element into the ground.
James & Wells Ref: 309964NZ 9. The method according to claim 6 to 8, wherein the method comprises providing the fastening element in accordance with claim 3, and ng the fastening element into the ground.

Claims (9)

P a t e n t c l a i m s
1. Fastening element for fastening a hollow composite pole for overhead power lines to the ground at a location where a slit-formed opening is present in the ground, wherein the fastening element has a lower end portion that is configured 5 for being positioned in the slit-formed opening, wherein the fastening element has a conical upper portion, n, in operational use of the ing element, a conical portion of the composite pole is configured for moving over the conical upper portion of the fastening element until abutment with the fastening t is ished, wherein the lower end portion of the fastening element is circular 10 for allowing the fastening element to be placed in the slit formed opening being circular, wherein the fastening t is one-piece.
2. The fastening element according to claim 1, n the fastening element at its lower end portion is equipped with drill elements.
3. The fastening element according to claim 2, wherein the drill elements comprise 15 metal.
4. The ing element according to claim 2, wherein the drill elements comprise ceramic material.
5. Method for fastening a hollow composite pole for overhead power lines to the ground, wherein the method comprises: 20 - making a slit-formed g in the ground; - inserting the fastening element in accordance with claim 1 into the slit-formed opening, and - moving the composite pole that is conical, over the fastening element until abutment is established. 25
6. The method according to claim 5, wherein the method comprises fixing the fastening t to the ground.
7. The method according to claim 5 or 6, wherein the method comprises making the slit-formed opening by drilling into the ground.
8. The method according to claim 6 or 7, wherein the method comprises making the 30 ormed opening by hammering the fastening element into the ground. James & Wells Ref: 309964NZ
9. The method according to claim 6 to 8, wherein the method comprises providing the fastening element in accordance with claim 3, and ng the fastening element into the ground.
NZ745302A 2016-02-16 2017-02-16 Apparatus and method for fastening a composite pole to the ground NZ745302B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20160270A NO343861B1 (en) 2016-02-16 2016-02-16 Method of attaching a composite mast to the ground.
NO20160270 2016-02-16
PCT/NO2017/050040 WO2017142419A1 (en) 2016-02-16 2017-02-16 Apparatus and method for fastening a composite pole to the ground

Publications (2)

Publication Number Publication Date
NZ745302A NZ745302A (en) 2021-11-26
NZ745302B2 true NZ745302B2 (en) 2022-03-01

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