EP0972883A1 - Verfahren zum Herstellen und senkrecht in den Boden absenken eines Rohrkörpers, mit Vorrichtung zum Durchführen dieses Verfahrens - Google Patents
Verfahren zum Herstellen und senkrecht in den Boden absenken eines Rohrkörpers, mit Vorrichtung zum Durchführen dieses Verfahrens Download PDFInfo
- Publication number
- EP0972883A1 EP0972883A1 EP99202396A EP99202396A EP0972883A1 EP 0972883 A1 EP0972883 A1 EP 0972883A1 EP 99202396 A EP99202396 A EP 99202396A EP 99202396 A EP99202396 A EP 99202396A EP 0972883 A1 EP0972883 A1 EP 0972883A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formwork
- earth
- ground
- tubular body
- shaped
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/08—Lowering or sinking caissons
Definitions
- the invention relates to a method such as defined in the first part of claim 1.
- the inner peripheral surface of the tubular body to be manufactured has a sawtooth profile, seen in the vertical direction.
- Internal formwork is used for this purpose, which consists of a number of one above the other, is conically tapered rings. After casting and hardening of a ring section of the The system becomes the desired tubular body in the formwork room the inner formwork rings and the shaped tubular body section overall lowered into the ground, whereupon the Inner formwork rings disassembled and again in the casting position installed within the fixed external formwork be on top of the already shaped one and are supported in the tube body reaching into the ground.
- the invention now intends to provide a method create that especially for making in the ground reaching tubular bodies of larger diameter (i.e. one Diameter of 10 meters and more) is suitable.
- the tubular body should be at the end reaching into the ground to be introverted.
- the invention contemplates one Alternative to what is generally used in practice Deep wall method to offer when in the floor with body relatively large cross-sectional dimensions Need to become.
- the method according to the invention has the Features defined in the second of claim 1.
- the support tube By making the support tube a relatively small one Diameter, it can be made using standard techniques, such as ramming, vibrating or drilling.
- the invention also relates to a device to carry out the method described above, which device a fixed on the floor External formwork, one built inside the latter Internal formwork, one from the formwork space between outside and inner formwork can be pushed down vertically Cut ring, and means for loosening and draining Has soil below and within the cutting ring.
- this device is characterized in that that the interior formwork from a vertical support tube centered in the ground and supported becomes.
- the cutter ring also with respect to the vertical support tube centered by means of a number of themselves radially from the cutter ring to one surrounding the support tube Slide bushing extending elements.
- a special version is obtained in that the radially extending elements with their ends rotatable at the cutter ring or are stored on the sliding bush and at the same time the means of loosening and transporting of the excavated earth.
- the radially extending elements from the earth from the outside to the outside inside conveyor screws.
- a preferred form of training has the characteristic that the screw conveyor shafts through on the outer end parts the same provided drive devices protrude and carry a pinion on their outer ends, which in one provided on the inner circumference of the cutting ring Engages ring gear.
- the screw conveyor arrangement rotating in the horizontal plane causes a very regular digging and is particularly suitable for excavation during the last phase when the tube body being formed under Groundwater level has reached.
- the in that phase the transport screws were transported inwards from the circumference Earth can then in the center by means of the central Support tube downward reaching suction tubes transported become.
- the schematic figures 1-4 show an arrangement an outer formwork 1 and an inner formwork 2, with a mold space 3 in between.
- the outer formwork 1 is based on the floor Perform the process of gradually digging up the earth's pillar 4 around. Digging the earth pillar 4 means that the inner formwork 2 supported freely suspended above the floor shall be.
- Fig. 1-4 show a support by means of Support arms 5 on a central support column 6.
- Fig. 4 shows the phase in which the molded tubular body 7 has a length that is about three times the height of the Formwork 1, 2 corresponds, while the earth column 4 has been dug up at the same height.
- the digging the earth pillar 4 can by means of the support pillar. around the tubular body 7 through the space between the support arms 5 excavators to be brought in.
- FIG. 2 is also the one Phase in the implementation of the present procedure shows where the groundwater level is reached.
- Fig. 4 shows the phase in which the molded tubular body 7 has reached the desired depth and in which the lower End of the tubular body is completed by a bottom plate 8 from "underwater concrete" has been attached.
- the base plate In front can attach the base plate, for the purpose of anchoring the same, anchor elements by divers at the bottom Hand of Fig. 5 to be described bottom ring 20 and Tube 6 are welded.
- the final Base plate 8 After attaching the final Base plate 8 can be the one above Water column can be suctioned off, on the bottom plate a reinforced concrete floor can be attached.
- the Groundwater pressure under the base plate 8 be so high that after pumping out the pipe body there is a risk of There is an upswing. To reduce the groundwater pressure can then over the as a permanent part in the molded Pipe body 7 remaining pipe 6 water can be removed.
- the tube 6 should preferably extend to below the base plate 8 extend.
- FIGS. 5 and 6 which more details with regard to the external and internal formwork 1 and 2, as well as the support of the same.
- 10 is a, extending around the formwork 1, 2, possibly consisting of separate sections, designated with ballast difficult support plate, on which a number of arranged around the formwork 1, 2 Support structures 11 are provided.
- the supporting structures 11 are with a (radially) extending inward Support arm 12 provided with suspension members 13 and 14, which organs at 15 and 16 on the outer formwork 1 respectively the inner formwork 2 are attached.
- the outer and inner formwork 1 and 2 are in kept the right distance apart by means of the reverse U-shaped bridge elements 17, which at the suspension points from above via the outer and inner formwork 1, 2 grasp and inward at their free thigh ends protruding clamps on the outside of the outside Attack the internal formwork.
- the bridge elements can be lifted a little, the formwork 1, 2 after Casting and hardening a section of the part to be molded Tubular body are expanded a little, causing the sliding down the molded tubular body from the formwork easier becomes.
- Fig. 6 shows a plan view. a horizontal section through a peripheral part of the formwork 1, 2.
- Das peripheral part shown contains two segments each an outer formwork wall part 1 '. 2 ', which of outside or inside of radially extending support elements 1 "or 2" are supported and with the help of tangential clamping elements 1 "'or 2"' in the desired, curved shape can be kept.
- the radius R of the external formwork 1 can e.g. Be 30 meters while the formwork has an effective height of 1 meter can.
- FIG. 5 is another wedge-shaped bottom ring 20 shown. This e.g. from steel The ring is made before molding the lower ring section of the tubular body below in the formwork 1, 2 arranged and contributes to the fact that the adhering to the ring 20 Pipe body "intersecting" - according to the vertical Dash line - moved through the earth.
- the by means of the inventive method in the Floor-mounted tubular body can be used as an underground Storage space used for products of all kinds become.
- the possibly existing pipe 6 can as a central support column for those to be supported Devices for horizontal and vertical transport from e.g. Serve motor vehicles.
- tubular body can serve as a foundation for buildings to be erected on it.
- Fig. 7 and 8 three transport screws denotes which as many "connecting spokes" between the inner circumference of the cutting ring 20 and one the central support tube 6 surrounding slide bush 22nd form.
- the transport screws 21 are with their inner Ends rotatably supported on the sliding bush 22.
- On the outer ends of the screw conveyor 21 sit Pinion 23, which are supported on and engage in one attached to the inner circumference of the cutting ring 20 Sprocket 24 (see Fig. 8A).
- the screw conveyors 21 additionally supported by three support arms 25, which are each between an auxiliary sliding bush 26 and an intermediate point 27 of the respective transport screws 21 extend.
- the drive devices designated 28 e.g. Hydromotors, which are in operation over on the inside of the tube body being formed downward lines are fed.
- the screw conveyors 21 do not only effect one even transport of earth from the outside to the inside, but also contribute to the fact that the Tubular body 7 (see Fig. 1-4) with respect to the vertical Support tube 6 is centered.
- That of the transport screws 1 from the outside to the inside transported earth can be in the form of an earth / water mixture be sucked upwards, e.g. by means of the 29 around the centrally positioned support tube 6 provided suction pipes.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims (10)
- Verfahren zur Herstellung eines senkrecht in den Boden reichenden Rohrkörpers, insbesondere aus Stahlbeton, mit den folgenden Schritten:das Errichten einer auf dem Boden stützenden Aussenschalung und das Anbringen einer Innenschalung;das Anbringen eines den Schalungsraum unten abschliessenden Schneideringes, an dem Armierungsstäbe befestigt werden,das Vergiessen eines erhärtbaren hydraulischen Mörtels zum Formen eines ersten (unteren) Abschnitts des Rohrkörpers;das gleichmässige Abgraben der Erde unterhalb des geformten und erhärteten Rohrabschnitts über den Raum innerhalb der Innenschalung, wobei der geformte Rohrabschnitt zugleicherzeit aus der Schalung absinkt;das weitere Abgraben und Abführen der Erde unterhalb des verlängerten Rohrabschnitts usw. bis der geformte Rohrkörper die erwünschte Länge bezw. Tiefe erreicht hat,
- Verfahren zur Herstellung eines senkrecht bis unter dem Grundwasserspiegel in den Boden reichenden Rohrkörpers, insbesondere aus Stahlbeton, mit den folgenden Schritten:das Errichten einer auf dem Boden stützenden Aussenschalung und das Anbringen einer Innenschalung;das Anbringen eines den Schalungsraum unten abschliessenden Schneideringes, an dem Armierungsstäbe befestigt werden,das Vergiessen eines erhärtbaren hydraulischen Mörtels zum Formen eines ersten (unteren) Abschnitts des Rohrkörpers;das gleichmässige Abgraben der Erde unterhalb des geformten und erhärteten Rohrabschnitts über den Raum innerhalb der Innenschalung, wobei der geformte Rohrabschnitt zugleicherzeit aus der Schalung absinkt;das weitere Abgraben und Abführen der Erde unterhalb des verlängerten Rohrabschnitts usw. bis der geformte Rohrkörper die erwünschte Länge bezw. Tiefe erreicht hat,
- Verfahren nach Anspruch 2, dadurch gekennezeichnet, dass das Absaugen des Grund/Wassergemisches unter gleichzeitigem Hinzufügen von Wasser durchgeführt wird.
- Vorrichtung zum Durchführen des Verfahrens nach Ansprüchen 1-3, miteiner fest auf dem Boden errichteten Aussenschalung;einer innerhalb derselben errichteten Innenschalung;einem im Schalungsraum zwischen Aussen- und Innenschalung in senkrechter Richtung verschiebbaren Schneidering,sowie Mitteln zum Lockern und Abführen von Erde unterhalb und innerhalb des Schnittringes hinweg,
- Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der Schneidering ebenfalls, mittels einer Anzahl von radial vom Schneidering bis zu einer das Stützrohr umgebenden Gleitbuchse reichenden Elementen in bezug auf das Stützrohr zentriert wird.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die sich radial erstreckenden Elemente mit ihren Enden drehbar am Schneidering bezw. an der Gleitbuchse gelagert sind und ebenfalls die Mittel zum Lockern und Transportieren der Erde bilden.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die sich radial erstreckenden Elemente von die Erde von aussen nach innen fördernden Förderschnecken gebildet werden.
- Vorrichtug nach Anspruch 7, dadurch gekennzeichnet, dass die Förderschneckenwellen durch auf ihren äusseren Endabschnitten vorgesehene Antriebsvorrichtungen hindurch ragen und auf ihren Enden ein Ritzel tragen, das in einen am Innenumfang des Schneideringes angeordneten Zahnkranz eingreift.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Antriebsvorrichtungen Hydromotore sind.
- Vorrichtung nach Ansprüchen 5-9, dadurch gekennzeichnet, dass die Gleitbuchse geteilt ausgebildet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1009683A NL1009683C2 (nl) | 1998-07-17 | 1998-07-17 | Werkwijze voor het vervaardigen van een verticaal in de grond reikend buislichaam. |
NL1009683 | 1998-07-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0972883A1 true EP0972883A1 (de) | 2000-01-19 |
EP0972883B1 EP0972883B1 (de) | 2002-11-27 |
Family
ID=19767516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19990202396 Expired - Lifetime EP0972883B1 (de) | 1998-07-17 | 1999-07-19 | Verfahren zum Herstellen und senkrecht in den Boden Absenken eines Rohrkörpers, mit Vorrichtung zum Durchführen dieses Verfahrens |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0972883B1 (de) |
DE (1) | DE59903516D1 (de) |
NL (1) | NL1009683C2 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE947540C (de) * | 1950-03-12 | 1956-08-16 | Hans Lorenz Dr Ing | Verfahren zum Herstellen und Absenken beliebig geformter Senkkaesten |
US4054034A (en) * | 1976-07-01 | 1977-10-18 | Robert Warren Hyre | Method for casting concrete tanks in water |
DE4307396A1 (en) * | 1992-03-16 | 1993-09-23 | Georg Thalmeier | Method of lining of shaft with concrete sections - has sections cast in-situ in circular forms which are re-used as lower sections harden and are driven down |
-
1998
- 1998-07-17 NL NL1009683A patent/NL1009683C2/nl not_active IP Right Cessation
-
1999
- 1999-07-19 DE DE59903516T patent/DE59903516D1/de not_active Expired - Lifetime
- 1999-07-19 EP EP19990202396 patent/EP0972883B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE947540C (de) * | 1950-03-12 | 1956-08-16 | Hans Lorenz Dr Ing | Verfahren zum Herstellen und Absenken beliebig geformter Senkkaesten |
US4054034A (en) * | 1976-07-01 | 1977-10-18 | Robert Warren Hyre | Method for casting concrete tanks in water |
DE4307396A1 (en) * | 1992-03-16 | 1993-09-23 | Georg Thalmeier | Method of lining of shaft with concrete sections - has sections cast in-situ in circular forms which are re-used as lower sections harden and are driven down |
Also Published As
Publication number | Publication date |
---|---|
NL1009683C2 (nl) | 2000-01-18 |
EP0972883B1 (de) | 2002-11-27 |
DE59903516D1 (de) | 2003-01-09 |
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