SE533618C2

SE533618C2 - Procedure and apparatus for casting concrete foundation parts in soil

Info

Publication number: SE533618C2
Application number: SE0801713A
Authority: SE
Inventors: Edvin Lindell
Original assignee: Edvin Lindell
Priority date: 2008-07-18
Filing date: 2008-07-18
Publication date: 2010-11-09
Also published as: SE0801713L

Description

533 G18 KORT BESKRIVNING AV RITNINGARNA En bättre förståelse för föreliggande uppfinning kommer att erhållas mot bakgrund av den följande beskrivningen läst tillsammans med de bifogade ritningarna där samma detaljer har samma beteckningar i de olika vyerna och där - F ig.l schematiskt visar ett longitudínellt axiellt snitt genom en första utförings- form av en anordning enligt uppfinningen anbringad i ett i marken utbildat hål, där vissa detaljer för tydlighets skull ej visas i snitt och där betong förefinns tillförd; - Fig. 2 schematiskt visar anordningen väsentligen enligt ﬁg. 1 i ett longitudi- nellt axiellt snitt; 'Ä - Fig. 3 schematiskt i ett axiellt snitt visar ett arrangemang för drivning av rota- tion och axiell förskjutning för anordningen enligt ﬁg. l och 2; - Fig. 4 schematiskt visar ett longitudinellt axiellt snitt genom en andra utföringsforrn av en anordning enligt uppﬁnningen försedd med armerings- stänger och - F ig. 5 schematiskt visar ett vertikalt snitt genom ett utförande enligt uppﬁn- ningen av markförstärkning i i slänt- eller lerskilctskonﬁgurerad mark. 533 G18 BRIEF DESCRIPTION OF THE DRAWINGS A better understanding of the present invention will be obtained in light of the following description read in conjunction with the accompanying drawings in which like details are shown in the same views and in which - FIG. by a first embodiment of a device according to the invention arranged in a hole formed in the ground, where certain details are not shown in section for the sake of clarity and where concrete is supplied; Fig. 2 schematically shows the device substantially according to ﬁ g. 1 in a longitudinal axial section; Fig. 3 schematically in an axial section shows an arrangement for driving rotation and axial displacement of the device according to ﬁ g. 1 and 2; Fig. 4 schematically shows a longitudinal axial section through a second embodiment of a device according to the invention provided with reinforcement bars and - Figs. 5 schematically shows a vertical section through an embodiment according to the design of ground reinforcement in ground secured in slope or clay partitions.

DETALJERAD BESKRIVNING AV FÖREDRAGNA UTFÖRINGSFORMER I ﬁg. 1 betecknas med 1 ett markavsnitt med markyta 2, ned i vilket ett hål 3 före- finns utbildat och löpande. I ﬁgurerna betecknas tillförd betong med X. 20 25 30 533 B48 Med 4 betecknas allmänt en transportkonﬁguration. Hålet 3 kan vara iörpreparerat eller kan tänkas utbildat genom att åtminstone delar av en transportkonﬁguration slås ned i marken.DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS I ﬁ g. 1 is denoted by 1 a ground section with ground surface 2, down in which a hole 3 is formed and running. In the ﬁ gures, added concrete is denoted by X. 20 25 30 533 B48 By 4 is generally denoted a transport configuration. The hole 3 may be pre-prepared or may be formed by driving at least parts of a transport configuration into the ground.

Transportkonﬁgurationen är sålunda anordnad att åtminstone till del föreﬁnnas ned- förd i sagda hål, vilken transportkonﬁguration innefattar ett yttre rör 5, ett invändigt i det yttre röret anordnat härrör 6 utvändigt uppbärande en transportskruv 7 för betong anslutande till det yttre rörets inre mantelyta 8 samt ett inre härrör 9 löpande i sagda härrör 6 samt nedanför transportskruven 7 uppbär-ande ett till hålets ínnervägg 10 väsentligen anslutande mothållsorgan l l. Det yttre röret 5 kan utgöras av ett foderrör använt vid borrning av hålet 3 och kvarlämnat i marken efter borrning.The transport configuration is thus arranged to at least partially be lowered into said hole, which transport configuration comprises an outer pipe 5, a tube 6 arranged internally in the outer pipe and externally supporting a transport screw 7 for concrete connecting to the inner mantle of the outer tube 8 and a mantle. inner tube 9 running in said tube 6 and below the transport screw 7 supporting an abutment member 11 substantially connecting to the inner wall 10 of the hole. The outer tube 5 may consist of a casing used in drilling the hole 3 and left in the ground after drilling.

För rotation av bärröret 6 och härvid av transportskruven 7 samt för fram- och åter- gående förskjutning, d.v.s förskjutning nedåt och uppåt, av sagda inre härrör och härvid av mothållsorganet, töreﬁnns enligt ett föredraget utförande en drivenhet 12, ﬁg. 3 exempelvis, anordnad medelst plattjårn 12' eller liknande fástelement vid det yttre rörets övre parti 13, vilken innefattar våxelanordningar 14, såsom en snäck- växel, samt lcraﬁalstrande organ 15, såsom en hydraulanordning, domkraft eller lik- nande för förskjutning av det inre bår-röret bl.a för àstadkommande av stor dragkraﬁ uppåt i det inre bärröret.For rotation of the support tube 6 and herewith of the transport screw 7 and for reciprocating displacement, i.e. displacement downwards and upwards, of said inner tube and herewith of the abutment member, a drive unit 12, ﬁ g is provided according to a preferred embodiment. 3, for example, arranged by means of flat iron 12 'or similar fastening elements at the upper part 13 of the outer tube, which comprises gear devices 14, such as a worm gear, and lcra organ generating means 15, such as a hydraulic device, jack or the like for displacing the inner stretcher the tube, among other things, for achieving a large drawbar ﬁ upwards in the inner support tube.

Växelanordningarna är avsedda att anslutas till åtminstone bärröret 6 medelst exem- pelvis kopplingsanordningar 16, såsom schernatiskt visas i fig. 2.The gear devices are intended to be connected to at least the support tube 6 by means of, for example, coupling devices 16, as schernetically shown in Fig. 2.

Enligt ett föredraget utförande är mothállsorganet utfört som en företrädesvis roter- bart anordnad transportskruv, vilken härvid är anordnad att mata betong uppåt eller nedåt i hålet i beroende av rotationsriktning.According to a preferred embodiment, the abutment means is designed as a preferably rotatably arranged transport screw, which is in this case arranged to feed concrete upwards or downwards in the hole depending on the direction of rotation.

För tillförsel av betong till det yttre röret föreﬁnns tillförselorgan 17, såsom ett till det yttre röret anslutande rör 17. 20 25 30 533 B18 Enligt ett uttörande, ﬁg. 4 är det yttre röret anordnat att uppbära armeringsstänger 20 sammanhållna med en bottenplatta 21 och anordnade att avlärnnas i hålet ingjutna som armering i tillförd betong.For supplying concrete to the outer pipe, there are supply means 17, such as a pipe 17 connecting to the outer pipe. 20 25 30 533 B18 4, the outer tube is arranged to support reinforcing bars 20 held together with a bottom plate 21 and arranged to be unloaded into the hole cast as reinforcement in supplied concrete.

F örfarandet liksom funktionen hos anordningen enligt uppﬁnningen torde i väsentlig och tillräcklig omfattning framgått ovan.The procedure as well as the function of the device according to the invention should be stated to a significant and sufficient extent above.

Transportkonﬁgurationen är sålunda anordnad att iörefmnas nedtörd i hålet í mar- ken. Lämpligen är drivenheten och tilltörselorgan tör betong anordnade ovanför markytan.The transport configuration is thus arranged to be left dry in the hole in the ground. Conveniently, the drive unit and drying means concrete are arranged above the ground surface.

Betong pumpas in i det yttre röret 5 och transporteras nedåt medelst transportskru- ven 7. Transportskruven 7 och mothållsorganet ll separeras medelst nämnda kraﬁ- alstrande organ 15 så att ett axiellt löpande utrymme 18 utbildas mellan transport- skruvens nedersta parti och mothållsorganet, vilket utrymme fylles med betong som matas ned i hålet. Betongen i utrymmet tryckes ut i den utrymmet omgivande mar- ken genom ett övertryck i betongen alstrat genom att mothállsorganet drages mot transportskruven medelst de lcraftalstrande organen 15, varvid en betongfylld volym med större ytterdiarneter än hålet utbildas. Undanträngd, uttryckt, betong ersätts och cykler innefattande separering av transportskrtrven och mothàllsorganen, uttryckning av betong och ersättning av uttryckt betong upprepas så att ett betongfundament, en betongpelare, med önskad konfiguration, exempelvis ytterdiarneter, utbildats. Öns- kad höjd hos fundamentet, pelaren, kan uppnås genom att välja det avstånd trans- portskzruven och mothållsorganen separeras. Genom att även successivt höja det yttre röret kan höjden ökas ytterligare.Concrete is pumped into the outer pipe 5 and transported downwards by means of the conveying screw 7. The conveying screw 7 and the retaining means 11 are separated by means of said cra with concrete fed into the hole. The concrete in the space is pushed out into the ground surrounding the space by an overpressure in the concrete generated by pulling the abutment member against the transport screw by means of the force generating means 15, whereby a concrete-filled volume with larger outer diameters than the hole is formed. Displaced, expressed, concrete is replaced and cycles involving separation of the conveying screws and the retaining means, expression of concrete and replacement of expressed concrete are repeated so that a concrete foundation, a concrete pillar, with the desired configuration, for example outer diameters, is formed. The desired height of the foundation, the pillar, can be achieved by choosing the distance the conveyor screw and the retaining means are separated. By also gradually raising the outer pipe, the height can be further increased.

I ﬁg. l visas härvid ett tillstànd där ett nedre pelarparti först utbildats till en ytter- diarneter D, och med en viss höjd h; . Det yttre röret har därefter höjts ett avstånd h tör att ovanför det nedre pelarpartiet alstra ytterligare ett pelarparti. Då ytterröret höjs fylls betong på i det centrala utrymmet i det redan utbildade, nedre pelarpartiet.I ﬁ g. 1 shows a state in which a lower column portion is first formed into an outer diaphragm D, and with a certain height h; . The outer tube has then been raised a distance h to create another column portion above the lower column portion. When the outer pipe is raised, concrete is filled in the central space in the already formed, lower pillar section.

Claims

533 E18 5 PATENT REQUIREMENTS

A method for casting concrete foundation sections, for example columnar concrete sections, in a hole formed in the ground and running into the ground, comprising lowering concrete into the hole and subjecting the concrete (X) to an overpressure, by means of which concrete (X) from the hole (3) is expressed in the ground (1) surrounding the hole (3) felt backed by the steps of - lowering a transport configuration (4) for concrete in said hole (3), which transport carbon filter (4) comprises an outer pipe (5), a support tube (6) arranged internally in the outer tube (5), externally supporting a transport screw (7) connecting internally to the outer tube (5) saint an inner tube (9) running in said support tube (6) and below the transport screw (7) carrying another. the inner wall (10) of the hollow connecting member (11) substantially separates the retaining member (11) and the lower part of the transport screw (7) so as to form an axially extending space (18) in the hole (3) therebetween - supply concrete to the outer pipe (s) ooh reta concrete downwards to said outlet (18) by means of the transport screw (7), - push concrete out into the walls of the hole in said space (18) by applying an overpressure in the space (18) below the retaining means (11), which is thereby pulled upwards by means of force-generating means (15).

Method according to claim 1, characterized by the step of repeating the cycle of separating the retaining member (11) and the transport screw (7), supplying concrete and pushing concrete into the walls of the hole: by means of an overpressure generated by the movement of the retaining member (11).

Process method according to claim 1 or 2, characterized by the step of arranging a driver unit (12) at the upper part (13) of the outer tube which: comprises switching devices (14) for rotating the support tube 533 618 é (6) of the transport screw (7). ) and means (15) for reciprocating displacement of the inner support tube (9) downwards and pulling of the inner support tube (9) upwards.

A method according to claim 1, 2 or 3, characterized by the step of arranging the abutment means (II) with a rotatable conveying screw, wherein the concrete is tilted downwards or downwards depending on the rotational direction.

Method according to claim 4, characterized by the step of arranging reinforcement bars (20) on the outer pipe (5) and handing them in the hole cast as a notch in supplied concrete.

Method according to one of Claims 1 to 5, characterized by the steps of moving the outer pipe (5) upwards in order to cast further foundation portions above already formed foundation portions.

Device for casting concrete foundation sections characterized by a transport configuration (4) for concrete arranged to be at least partially present in said holes (3), which transport configuration (4) comprises an outer pipe (5), an interior in the outer tube (5) rotatably arranged support tube (6) externally supporting a transport screw (7) connecting to the inner jacket surface (8) of the outer tube (5) and an inner support tube (9) running in said support tube (6) and below the conveying screw (7) supporting a retaining member (11) substantially adjoining the inner wall (10) of the cavity, wherein force generating means (15) are provided for displacing the support tube (6) for the retaining member (11) from and towards the conveying screw (7). ) lower part, whereby an overpressure is intended to be applied to concrete supplied with an axially spaced space (18) running between the conveyor screw (7) formed by separating the retaining member (11) and the conveying screw (7) between the conveying screw (7) lower part and the retaining member (ll) by applying 533 B18 7 a tensile force in said support pipe (6) for the abutment means (11) by means of force generating means (15), whereby concrete under overpressure is intended to be expressed in ground (1) surrounding the hole in said space.

Device according to claim 7, characterized by a drive unit (12) arranged at an upper portion (13) of the outer tube (5), which comprises gear devices (14) for driven rotation of the support tube (6) of the transport screw (7) and force generating means (15) for reciprocating displacement of the inner support tube (9) downwards and upwards.

Device according to claim 7 or 8, characterized in that the abutment means (11) is arranged as a rotatable transport screw arranged to feed concrete upwards or downwards in the hole depending on the direction of rotation.

Device according to claim 9, characterized by a conveyor device for transmitting rotational movement from the support tube (6) of the transport screw (7) to the transport screw of the inner retaining member (11).

11. ll. Device according to one of Claims 7 to 10, characterized in that the outer tube (5) carries reinforcing bars (20) arranged to be delivered in the hole (3) cast as reinforcement in supplied concrete.