EP0542692B1 - Device for anchoring construction parts to the ground - Google Patents
Device for anchoring construction parts to the ground Download PDFInfo
- Publication number
- EP0542692B1 EP0542692B1 EP92810880A EP92810880A EP0542692B1 EP 0542692 B1 EP0542692 B1 EP 0542692B1 EP 92810880 A EP92810880 A EP 92810880A EP 92810880 A EP92810880 A EP 92810880A EP 0542692 B1 EP0542692 B1 EP 0542692B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- anchor pile
- ground
- head
- anchor
- screw form
- 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
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 11
- 238000010276 construction Methods 0.000 title abstract description 6
- 239000002689 soil Substances 0.000 claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
-
- 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
- E02D27/50—Anchored foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
Definitions
- the invention relates to a device that allows components such as high-voltage pylons, building foundations, etc. to be anchored in the earth.
- US-A 3 636 718 shows the base element of a plastic anchor pile, which can be driven into the ground by connection to a pressurized water source and filled with concrete.
- the conical tip of the base element points to it
- the outside surface has a helically wound metal band with edges pointing upwards.
- At the top of the conical tip are several coaxial ring shoulders, which allow the base element driven into the ground to be extended upwards by means of tubular plastic elements of different diameters.
- the head of the base element can also have means for attaching a rotary drive.
- FR-A 2 369 388 it was proposed to provide a concrete pile with a metal reinforcement extending over its entire length.
- the concrete pile provided with means for attaching a rotary drive has a thread on its outer surface and can be composed of several sections, wherein a cylindrical extension element can be attached to a lower conical base element by means of coupling members.
- the device shown in Fig. 1, which is designated in its entirety by 1, has a helical anchor post 2, the post of which is made of a plastic of high strength, e.g. glass fiber reinforced Teflon, created body, with a head 3, for example made of a tough plastic.
- the anchor pile 2 has a thread 4 on its peripheral surface, to which a tip 5 is connected in the lower part.
- the latter is preferably made of a hard material, e.g. Steel or hard metal, and is firmly connected to the rest of the pile part.
- a drill tip can also be attached here, such as that used for rock drilling.
- the head has a recess 5 in the form of a hexagon hole in its central part and is on his Upper part covered by a cover plate 6, on its downward facing ring surface by two half rings 7.
- Cover plate 6 and half rings 7 are preferably made of steel and are fastened in the material of the head 3 by means of screws 8 and 9, respectively.
- the cover plate 6 has a hexagonal recess in the area of the hexagon hole 5, so that the hexagon of a turning device can be attached here.
- the head 3 including the cover plate 6 and the half rings 7, a plurality of anchor bolts 10 are guided into the interior of the anchor post 2, which are provided with lateral anchors 11 at their ends projecting upward from the head 3.
- the protruding ends of the anchor bolts 10 can also be formed with other coupling parts which, for example, allow the components to be anchored to be screwed on.
- the anchor pile can consist of three sections 12, 13, 14, which are detachably connected to one another, for example, by threaded pins 15. While the two outer sections 12 and 14 are tapered, the central section 13 is designed in the form of a cylinder screw, so that the resistance to be overcome when the anchor pile is screwed into the ground is considerably reduced compared to a conical anchor pile over its entire length. As soon as section 14 has penetrated fully into the ground, the hole required for cylindrical section 13 is pre-drilled, so that no further significant resistance occurs until section 12 penetrates. Thanks to this three-part shape, the central, cylindrical section 13 can be different Keep lengths in stock and replace if necessary.
- the section 14 consists either entirely or only in its lower, tip-shaped part 5 of an active substance which is harder than the base body, for example steel.
- FIG. 3 shows a variant which is particularly suitable for anchoring heavy components in loose subsoil, for example sand.
- a central blind hole 16 is drilled in the anchor post 2, which otherwise corresponds to the embodiment according to FIG that connect laterally outlet channels 17.
- This design allows, after screwing the anchor pile 2 into the ground from above in the direction of the arrow, a ground-strengthening agent, e.g. Pour in a synthetic resin or a mixture of cement and water (cement milk) that penetrates the soil surrounding the anchor post and, after hardening, forms a solidified zone Z, which gives the anchor post additional resistance to pulling out and sinking in or tipping over.
- a ground-strengthening agent e.g. Pour in a synthetic resin or a mixture of cement and water (cement milk) that penetrates the soil surrounding the anchor post and, after hardening, forms a solidified zone Z, which gives the anchor post additional resistance to pulling out and sinking in or tipping over.
- thread 4 which is in any case designed as a sharp thread with pointed flanks, can be adapted to the prevailing soil conditions.
- variant a with a large flank angle ⁇ of 25 to 60 ° for hard soils
- variant b with a small flank angle ⁇ between 0 and 25 ° for light, sandy soils will be selected.
- the thread flanks can be provided with barbs 18, as shown by variant c in FIG. 4.
- FIG. 5 An application of the device, as shown in particular in FIG. 1, is shown in FIG. 5.
- a high-voltage pylon resting on four pillars 19 is supported on concrete elements 20, which in turn are anchored in the ground by means of anchor piles 21 according to the invention.
- the connection of the anchor piles 21 to the concrete elements 20 is preferably carried out in that the anchor piles 21 are provided with branch-shaped anchors, as they were designated by 11 in FIG. 1, over which a concrete block 20 is then poured.
- the pillars 19 can then be screwed or welded onto the protruding heads of the anchors in a known manner.
- Small anchoring devices can be screwed in by hand in loose soil, possibly using leverage. With larger dimensions of the anchor piles and heavier floors, they are screwed in mechanically.
- a truck or tractor 22 can be used for this purpose, to whose transmission a rotary device 23 is connected via a PTO shaft. This engages with its hexagon in the head 24 of the anchor device 25 to be screwed in (FIG. 6).
- the device according to the invention can be used, for example, in the embodiment shown in FIG. 3 for anchoring building foundations.
- the devices designated 26 in FIG. 7 are first screwed into the ground until their heads 27 still protrude from the ground to a certain extent, whereupon the anchors 28 are attached.
- Cement milk is now introduced into the holes 29 from above, which soaks the surrounding soil and, after hardening, forms a zone Z of high strength.
- the concrete foundation 30 is then poured over the anchor heads 27 and firmly anchored by the same.
- the devices can be assembled with sufficient security even without adding cement milk.
- the device described is characterized, as can be demonstrated by simple tests, by an extraordinarily high resistance to tearing and sinking in the direction of the anchor pile axis, since the sum of the threaded flanks screwed into the ground forms a very large total area on which the anchor pile forms Shift opposes.
- buoys in the lake bed, tensioning ropes of tents in the desert sand etc. etc. can undoubtedly be attached in a relatively uncomplicated manner.
- the device has a total length between, for example, 0.5 to 5 m, but in special cases it can even be considerably longer. In the case of extreme lengths, it may be advantageous to first predrill a core hole and then screw the device into the core hole, the diameter of which should be approximately half the average thread diameter.
Abstract
Description
Die Erfindung betrifft eine Vorrichtung, die es gestattet, Bauteile wie Hochspannungsmasten, Gebäudefundamente etc. im Erdbereich zu verankern.The invention relates to a device that allows components such as high-voltage pylons, building foundations, etc. to be anchored in the earth.
Der zur Erstellung von Fundamenten im Bausektor und verwandten Gebieten erforderliche Aufwand ist im Vergleich zu den Gesamt-Erstellungskosten erheblich. Zur sicheren Verankerung von Bauteilen, wie Hochspannungsmasten, Gebäudefundamenten etc. sind tiefe Ausgrabungen erforderlich, die mit Beton und verstärkenden Stahleinlagen ausgefüllt werden. Besonders hoch ist der Aufwand naturgemäss in lockerem Boden, speziell in sandigem Terrain, doch bestand bisher das Vorurteil, dass stabile Fundamente nur durch den kombinierten Einsatz von Beton und Stahl erstellt werden können; so zielen die bisher bekannten Verankerungsvorschläge durchwegs darauf ab, im Untergrund des zu verankernden Bauteils einen schweren Unterbau zu schaffen, der schon durch sein Eigengewicht eine gewisse Sicherheit bieten soll.The effort required to create foundations in the construction sector and related areas is considerable compared to the total construction costs. To securely anchor components such as high-voltage pylons, building foundations, etc., deep excavations are required, which are filled with concrete and reinforcing steel inlays. The effort is naturally particularly high in loose soil, especially in sandy terrain, but previously there was a prejudice that stable foundations can only be created by the combined use of concrete and steel; So the previously known anchoring proposals consistently aim to create a heavy substructure in the substructure of the component to be anchored, which is supposed to offer a certain amount of security due to its own weight.
Diese schweren Stahl-Beton-Konstruktionen durch eine wesentlich leichtere, dennoch aber sehr stabile und praktisch unausreissbar gesicherte Verankerung zu ersetzen, musste daher bisher als unmöglich erscheinen. Und doch ist es die der vorliegenden Erfindung zugrundeliegende Aufgabe, eine Einrichtung zur sicheren Verankerung bzw. Fundamentierung von Bauteilen vorzuschlagen, die sich nicht nur durch ihre unkomplizierte Montage, sondern auch durch ihr extrem geringes Gewicht und ihren geradezu verblüffend hohen Widerstand gegen deren Ausreissen und Einsinken auszeichnet.To replace these heavy steel-concrete constructions with a much lighter, but still very stable and practically unbreakable anchoring had previously seemed impossible. And yet it is the object on which the present invention is based to propose a device for securely anchoring or foundation of components, which not only stands out due to its uncomplicated assembly, but also due to its extremely low weight and its amazingly high resistance to its pulling out and sinking in distinguished.
Die US-A 3 636 718 zeigt das Basiselement eines Kunststoff-Ankerpfahls, der durch Anschluss an eine Druckwasserquelle ins Erdreich getrieben und mit Beton aufgefüllt werden kann. Die konische Spitze des Basiselementes weist an ihrer Aussenfläche ein schraubenförmig aufgewundenes Metallband mit nach oben weisenden Kanten auf. An die konische Spitze schliessen sich nach oben mehrere koaxiale Ringschultern auf, die es gestatten, das ins Erdreich vorgetriebene Basiselement nach oben mittels rohrförmiger Kunststoffelemente unterschiedlichen Durchmessers zu verlängern. Für den Fall, dass ein Druckwasservortrieb nicht möglich ist, kann der Kopf des Basiselementes auch Mittel zum Ansetzen eines Drehantriebs aufweisen.US-A 3 636 718 shows the base element of a plastic anchor pile, which can be driven into the ground by connection to a pressurized water source and filled with concrete. The conical tip of the base element points to it The outside surface has a helically wound metal band with edges pointing upwards. At the top of the conical tip are several coaxial ring shoulders, which allow the base element driven into the ground to be extended upwards by means of tubular plastic elements of different diameters. In the event that pressurized water is not possible, the head of the base element can also have means for attaching a rotary drive.
Gemäss der FR-A 2 369 388 wurde vorgeschlagen, einen Betonpfahl mit einer sich über dessen Gesamtlänge erstreckenden Metallarmierung zu versehen. Der mit Mitteln zum Ansetzen eine Drehantriebs versehene Betonpfahl weist an seiner Aussenfläche ein Gewinde auf und kann aus mehreren Abschnitten zusammengesetzt sein, wobei an einem unteren konischen Basiselements mittels Kupplungsorganen ein zylindrisches Verlängerungselement befestigt werden kann.According to FR-
Im Vergleich zu diesem Stand der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, einen Ankerpfahl vorzuschlagen, welcher in relativ leichter Kunststoffbauweise so ausgebildet ist, dass sich beim Eindringen des Ankerpfahls ins Erdreich der zu überwindende Widerstand erheblich verringert.In comparison to this prior art, the object of the present invention is to propose an anchor post which is constructed in a relatively light plastic construction in such a way that the resistance to be overcome is considerably reduced when the anchor post penetrates into the ground.
Die Erfindung ist im kennzeichnenden Teil des unabhängigen Patentanspruchs 1 definiert. Besondere Ausführungsformen derselben sowie einige spezielle Verwendungsarten ergeben sich aus den übrigen Patentansprüchen.The invention is defined in the characterizing part of
Es zeigen :
- Fig. 1
- eine Ausführungsform der erfindungsgemässen Vorrichtung;
- Fig. 2
- eine aus drei Teilen zusammengesetzte Variante;
- Fig. 3
- eine Anwendungsform der erfindungsgemässen Vorrichtung zwecks Verstärkung des umgebenden Erdreichs;
- Fig. 4
- drei Ausführungsformen a-b-c des schraubenförmigen Ankerpfahles;
- Fig. 5
- eine Anwendung zur Verankerung eines Hochspannungsmastes;
- Fig. 6
- das Eintreiben in den Boden mittels einer vom Getriebe eines Lastkraftwagens oder Traktors abgeleiteten Drehvorrichtung und
- Fig. 7
- eine Anwendung im Gebäudebau.
- Fig. 1
- an embodiment of the device according to the invention;
- Fig. 2
- a variant composed of three parts;
- Fig. 3
- an application form of the inventive device for the purpose of reinforcing the surrounding soil;
- Fig. 4
- three embodiments abc of the helical anchor pile;
- Fig. 5
- an application for anchoring a high voltage pylon;
- Fig. 6
- driving into the ground by means of a turning device derived from the gearbox of a truck or tractor and
- Fig. 7
- an application in building construction.
Die in Fig. 1 gezeigte Vorrichtung, welche in ihrer Gesamtheit mit 1 bezeichnet ist, weist einen schraubenförmigen Ankerpfahl 2 auf, dessen aus einem Kunststoff hoher Festigkeit, z.B. glasfaserverstärktem Teflon, erstellter Grundkörper, mit einem Kopf 3, beispielsweise aus einem zähen Kunststoff hergestellt ist. Der Ankerpfahl 2 weist an seiner Umfangsfläche ein Gewinde 4 auf, an das sich im unteren Teil eine Spitze 5 anschliesst. Letztere besteht vorzugsweise aus einem harten Werkstoff, z.B. Stahl oder Hartmetall, und ist mit dem restlichen Pfahlteil fest verbunden. Je nach Bedarfsfall lässt sich hier auch eine Bohrerspitze anbringen, wie sie beispielsweise für Gesteinsbohrungen verwendet wird.The device shown in Fig. 1, which is designated in its entirety by 1, has a
Der Kopf besitzt in seinem Mittelteil eine Ausnehmung 5 in Form eines Sechskantloches und ist an seinem Oberteil durch eine Deckscheibe 6, an seiner nach unten weisenden Ringfläche durch zwei Halbringe 7 abgedeckt. Deckscheibe 6 und Halbringe 7 bestehen vorzugsweise aus Stahl und sind im Werkstoff des Kopfes 3 mittels Schrauben 8 bzw. 9 befestigt. Die Deckscheibe 6 weist im Bereich des Sechskantloches 5 eine ebenfalls sechskantförmige Ausnehmung auf, so dass hier der Sechskant einer Drehvorrichtung angesetzt werden kann.The head has a
Anstelle der im Ausführungsbeispiel dargestellten sechskantförmigen Vertiefung liessen sich selbstverständlich vom Fachmann eine Reihe anderer Organe anbringen, die das Ansetzen einer Drehvorrichtung gestatten.Instead of the hexagonal depression shown in the exemplary embodiment, a number of other organs could of course be made by a person skilled in the art which permit the attachment of a rotating device.
Durch den Kopf 3, einschliesslich der Deckscheibe 6 und der Halbringe 7, sind mehrere Ankerbolzen 10 ins Innere des Ankerpfahles 2 geführt, die an ihren nach oben aus dem Kopf 3 herausragenden Enden mit seitlichen Ankern 11 versehen sind. Je nach Art des vorgesehenen Anschlusses können die herausragenden Enden der Ankerbolzen 10 auch mit anderen Kupplungsteilen ausgebildet sein, die beispielsweise ein Anschrauben der zu verankernden Bauteile gestatten.Through the
Gemäss Fig. 2 kann der Ankerpfahl aus drei Abschnitten 12, 13, 14 bestehen, die beispielsweise durch Gewindezapfen 15 lösbar miteinander verbunden sind. Während die beiden aussenliegenden Abschnitte 12 und 14 konisch verjüngt sind, ist der Mittelabschnitt 13 in Form einer Zylinderschraube ausgebildet, so dass der beim Eindrehen des Ankerpfahles ins Erdreich zu überwindende Widerstand gegenüber einem über seine Gesamtlänge konischen Ankerpfahl erheblich reduziert ist. Sobald nämlich der Abschnitt 14 voll ins Erdreich eingedrungen ist, ist das für den zylindrischen Abschnitt 13 erforderliche Loch vorgebohrt, sodass erst beim Eindringen des Abschnitts 12 ein weiterer nennenswerter Widerstand auftritt. Dank dieser dreiteiligen Form lässt sich der mittlere, zylindrische Abschnitt 13 in unterschiedlichen Längen auf Lager halten und je nach Bedarfsfall auswechseln. Der Abschnitt 14 besteht entweder aus insgesamt oder nur in seinem unteren, zur Spitze geformten Teil 5 aus einem im Vergleich zum Grundkörper härteren Wirkstoff, z.B. Stahl.2, the anchor pile can consist of three
Eine Variante, die sich insbesondere zur Verankerung schwerer Bauteile in lockerem Baugrund, beispielsweise Sand, eignet, zeigt Fig. 3. Hier ist in den Ankerpfahl 2, der im übrigen mit der Ausführungsform nach Fig. 1 übereinstimmt, ein zentrales Sackloch 16 gebohrt, an das sich seitlich Austrittskanäle 17 anschliessen. Diese Ausbildung gestattet es, nach dem Eindrehen des Ankerpfahles 2 ins Erdreich von oben in Pfeilrichtung ein Erdreich-verfestigendes Mittel, z.B. ein Kunstharz oder ein Gemisch von Zement und Wasser (Zementmilch) einzugiessen, das das den Ankerpfahl umgebende Erdreich durchdringt und nach dem Aushärten eine verfestigte Zone Z bildet, die dem Ankerpfahl zusätzlichen Widerstand gegen das Ausreissen und Einsinken bzw. Kippen verleiht.FIG. 3 shows a variant which is particularly suitable for anchoring heavy components in loose subsoil, for example sand. Here, a central
Die Wahl des Gewindes 4, das in jedem Falle als scharfgängiges Gewinde mit spitzen Flanken ausgebildet ist, kann den vorherrschenden Bodenbedingungen angepasst werden. So wird man, wie in Fig. 4 veranschaulicht, die Variante a mit grossem Flankenwinkel α von 25 bis 60° für harte Böden, die Variante b mit kleinem Flankenwinkel β zwischen 0 und 25° für leichte, sandige Böden wählen. Um ein unbeabsichtigtes Rückdrehen des einmal ins Erdreich eingedrehten Ankerpfahles zu verhindern, können die Gewindeflanken mit Widerhaken 18 versehen sein, wie dies die Variante c in Fig. 4 darstellt.The choice of thread 4, which is in any case designed as a sharp thread with pointed flanks, can be adapted to the prevailing soil conditions. Thus, as illustrated in FIG. 4, variant a with a large flank angle α of 25 to 60 ° for hard soils, variant b with a small flank angle β between 0 and 25 ° for light, sandy soils will be selected. In order to prevent an unintentional turning back of the anchor pile once screwed into the ground, the thread flanks can be provided with
Eine Anwendung der Vorrichtung, wie sie insbesondere in Fig. 1 dargestellt ist, zeigt Fig. 5. Ein auf vier Pfeilern 19 ruhender Hochspannungsmast stützt sich auf Betonelemente 20 ab, die ihrerseits mittels erfindungsgemässen Ankerpfählen 21 im Boden verankert sind. Die Verbindung der Ankerpfähle 21 mit den Betonelementen 20 erfolgt vorzugsweise dadurch, dass die Ankerpfähle 21 mit verzweigungsförmigen Ankern versehen sind, wie sie in Fig. 1 mit 11 bezeichnet wurden, über die dann ein Betonblock 20 gegossen wird. An den herausragenden Köpfen der Anker lassen sich dann die Pfeiler 19 in bekannter Weise verschrauben oder anschweissen.An application of the device, as shown in particular in FIG. 1, is shown in FIG. 5. A high-voltage pylon resting on four
Das Eindrehen kleiner Verankerungsvorrichtungen kann in lockerem Boden von Hand, gegebenenfalls unter Ausnutzung der Hebelwirkung, erfolgen. Bei grösseren Abmessungen der Ankerpfähle und schwereren Böden erfolgt das Eindrehen auf maschinellem Wege. Dafür kann beispielsweise ein Lastwagen oder Traktor 22 eingesetzt werden, an dessen Getriebe über eine Zapfwelle eine Drehvorrichtung 23 angeschlossen ist. Diese greift mit ihrem Sechskant in den Kopf 24 der einzudrehenden Ankervorrichtung 25 (Fig. 6).Small anchoring devices can be screwed in by hand in loose soil, possibly using leverage. With larger dimensions of the anchor piles and heavier floors, they are screwed in mechanically. For example, a truck or
Die erfindungsgemässe Vorrichtung kann beispielsweise in der in Fig. 3 gezeigten Ausführung für die Verankerung von Gebäudefundamenten Verwendung finden. Die in Fig. 7 mit 26 bezeichneten Vorrichtungen werden zunächst in das Erdreich eingedreht, bis deren Köpfe 27 noch um ein gewisses Mass aus dem Erdreich herausragen, worauf die Anker 28 angebracht werden. Nun wird von oben in die Bohrungen 29 Zementmilch eingegeben, die das umgebende Erdreich durchtränkt und nach dem Aushärten eine Zone Z hoher Festigkeit bildet. Das Betonfundament 30 wird dann über die Ankerköpfe 27 gegossen und durch dieselben fest verankert. Je nach der angestrebten Stabilität der Verankerung lassen sich die Vorrichtungen auch ohne Zugabe von Zementmilch mit ausreichender Sicherheit montieren.The device according to the invention can be used, for example, in the embodiment shown in FIG. 3 for anchoring building foundations. The devices designated 26 in FIG. 7 are first screwed into the ground until their
Die beschriebene Vorrichtung zeichnet sich, wie sich durch einfache Versuche nachweisen lässt, durch einen ausserordentlich hohen Widerstand gegen das Ausreissen und Einsinken in Richtung der Ankerpfahlachse aus, da die Summe der ins Erdreich eingedrehten Gewindeflanken eine sehr grosse Gesamtfläche bildet, auf der sich der Ankerpfahl einer Verschiebung widersetzt.The device described is characterized, as can be demonstrated by simple tests, by an extraordinarily high resistance to tearing and sinking in the direction of the anchor pile axis, since the sum of the threaded flanks screwed into the ground forms a very large total area on which the anchor pile forms Shift opposes.
Die beschriebenen Ausführungsformen sind lediglich der Veranschaulichung dienende Beispiele, die vom Fachmann beliebig vermehrt werden können. So lassen sich mit der erfindungsgemässen Vorrichtung zweifellos auch Bojen im Seegrund, Spannseile von Zelten im Wüstensand etc. etc. auf relativ unkomplizierte Weise festmachen.The described embodiments are merely illustrative examples that can be expanded as desired by those skilled in the art. Thus, with the device according to the invention, buoys in the lake bed, tensioning ropes of tents in the desert sand etc. etc. can undoubtedly be attached in a relatively uncomplicated manner.
Im praktischen Einsatz hat die Vorrichtung eine Gesamtlänge zwischen beispielsweise 0,5 bis 5 m, doch kann sie in Sonderfällen sogar beträchtlich länger sein. Bei extremen Längen kann es von Vorteil sein, zuerst ein Kernloch vorzubohren und dann die Vorrichtung in das Kernloch, dessen Durchmesser etwa die Hälfte des mittleren Gewindedurchmessers betragen sollte, einzudrehen.In practical use, the device has a total length between, for example, 0.5 to 5 m, but in special cases it can even be considerably longer. In the case of extreme lengths, it may be advantageous to first predrill a core hole and then screw the device into the core hole, the diameter of which should be approximately half the average thread diameter.
Claims (8)
- Device for anchoring structural members in the ground which is designed in the form of an anchor pile (2) which is provided with a helical contour, is conically tapered towards its free end, at least in that section which is intended to penetrate first into the ground, and has at its opposite end means for attaching a rotary drive, the basic body of the anchor pile consisting of a high-strength plastic, and the helical contour of the anchor pile (2) being designed as an angular thread, characterised in that the thread (4) extends over the full height of the basic body and the anchor pile (2) in screw form has a central cylindrical region (13) which is adjoined on both sides by a conically tapered region (12, 14) and in that the said section consists at least in its free, pointedly tapering end region of a material which is harder in comparison with the basic body and, furthermore, an element intended for attaching a rotary drive is arranged at the end opposite the said section in a head plate (3) which is firmly connected to the anchor pile (2) in screw form.
- Device according to Claim 1, characterised in that the said head plate (3) is produced from a plastic in one part with the anchor pile (2) in screw form and is reinforced on both its end faces by a metallic cover plate (6, 7), the lower cover plate (7), engaging around the anchor pile (2) in screw form, being of an annular and two-part design to permit its assembly.
- Device according to Claim 1 or 2, characterised in that reinforcing elements (10), in particular screw bolts, protrude through the said head plate (3) into the anchor pile (2) in screw form.
- Device according to one of Claims 1 to 3, characterised in that the anchor pile (2) has a central blind-hole bore (16) which is accessible from the head plate (3) and is laterally adjoined by a plurality of outlet channels (17), opening out in the periphery of the anchor pile, in such a way that a medium consolidating the earth surrounding the anchor pile, in particular a synthetic resin or a water-cement mixture, can be filled into the central blind-hole bore (16) from above once the device has been introduced into the ground.
- Device according to one of Claims 1 to 4, characterised in that the anchor pile in screw form is produced in three parts and the three sections (12, 13, 14) of the same are able to be screwed to one another, so that the said sections can be interchanged according to the condition of the soil and the intended loading.
- Device according to one of Claims 1 to 5, characterised in that barb-like screwing-back securing means (18) are arranged in the thread flanks of the anchor pile in screw form in order to prevent screwing-back of the anchor pile.
- Use of the device according to one of Claims 1 to 6 for producing the foundations of structural members, such as of buildings and high-voltage masts, the structural members being fastened to the head sections of the device which protrude from the ground.
- Use according to Claim 7, characterised in that the reinforcing elements protruding from the head of the device are cast in surrounding concrete, forming the foundation slab of a building.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3319/91 | 1991-11-14 | ||
| CH331991 | 1991-11-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0542692A1 EP0542692A1 (en) | 1993-05-19 |
| EP0542692B1 true EP0542692B1 (en) | 1997-02-19 |
Family
ID=4253420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92810880A Expired - Lifetime EP0542692B1 (en) | 1991-11-14 | 1992-11-13 | Device for anchoring construction parts to the ground |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0542692B1 (en) |
| AT (1) | ATE149052T1 (en) |
| DE (1) | DE59208049D1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075772A1 (en) * | 2009-12-22 | 2011-06-30 | Minmetals Australia Pty Ltd | Screw piles |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT407883B (en) * | 1999-04-26 | 2001-07-25 | Batiwe Beteiligungsgesellschaf | FOUNDATION FOR ANCHORING PEGS, POLES, POLES OR THE LIKE. |
| GB2362672A (en) * | 2000-05-22 | 2001-11-28 | Laing Rail Ltd | Conical foundation pile having a screw thread for urging the pile into the ground |
| FR2894603B1 (en) * | 2005-12-14 | 2008-03-14 | Jean Marie Renovation Sarl Sar | MICROPIEUX AND MICROPIEUX ASSEMBLY STUD COMPRISING SUCH STUDS |
| RS54862B1 (en) | 2012-01-05 | 2016-10-31 | Atlantech S R L | Foundation equipment for a pole in particular for a lighting pole |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1940938A (en) * | 1930-06-23 | 1933-12-26 | Albert B Chance | Earth anchor |
| US3636718A (en) * | 1970-03-16 | 1972-01-25 | Borg Warner | Water jetted piling |
| US3842608A (en) * | 1972-11-28 | 1974-10-22 | L Turzillo | Method and means for installing load bearing piles in situ |
| SE7712323L (en) * | 1976-11-02 | 1978-05-03 | Gillen Jr William Francis | THREADED CONCRETE POLE |
| US4110989A (en) * | 1977-05-16 | 1978-09-05 | Thomas Selkirk | Piling fabricated from synthetic material |
| US4621950A (en) * | 1983-01-18 | 1986-11-11 | Electric Power Research Institute | Techniques for establishing inground support footings and for strengthening and stabilizing the soil at inground locations |
-
1992
- 1992-11-13 AT AT92810880T patent/ATE149052T1/en not_active IP Right Cessation
- 1992-11-13 EP EP92810880A patent/EP0542692B1/en not_active Expired - Lifetime
- 1992-11-13 DE DE59208049T patent/DE59208049D1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075772A1 (en) * | 2009-12-22 | 2011-06-30 | Minmetals Australia Pty Ltd | Screw piles |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59208049D1 (en) | 1997-03-27 |
| EP0542692A1 (en) | 1993-05-19 |
| ATE149052T1 (en) | 1997-03-15 |
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