EP3880935A1 - Shuttering with supporting ring having extendable drawers - Google Patents
Shuttering with supporting ring having extendable drawersInfo
- Publication number
- EP3880935A1 EP3880935A1 EP19816536.7A EP19816536A EP3880935A1 EP 3880935 A1 EP3880935 A1 EP 3880935A1 EP 19816536 A EP19816536 A EP 19816536A EP 3880935 A1 EP3880935 A1 EP 3880935A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drawers
- shaft wall
- sealing
- concrete
- formwork
- 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.)
- Pending
Links
- 238000009416 shuttering Methods 0.000 title abstract 5
- 238000007789 sealing Methods 0.000 claims abstract description 106
- 238000009415 formwork Methods 0.000 claims description 75
- 238000005253 cladding Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/04—Lining shafts; Linings therefor with brick, concrete, stone, or similar building materials
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D5/00—Lining shafts; Linings therefor
- E21D5/12—Accessories for making shaft linings, e.g. suspended cradles, shutterings
Definitions
- the invention relates to a device for producing a hollow cylindrical concrete cladding on shaft walls of vertical shafts, with at least one formwork element which forms a concrete formwork and is radially spaced from the shaft wall, a support ring at the lower end of the formwork element, and a sealing arrangement in the region of the support ring for sealing the concrete formwork against the Shaft wall.
- No. 4,270,876 A discloses a device for producing a hollow cylindrical concrete cladding on shaft walls of vertical shafts.
- a formwork element is described, which is used to manufacture concrete cladding for vertical shafts.
- a support ring is arranged at the lower end of this formwork element.
- the seal between the support ring and the shaft wall is made using an inflatable element.
- a disadvantage of the one described here The solution is that the sealing gap that can be bridged with the inflatable element between the support ring and the shaft wall is limited, which requires a high degree of accuracy when drilling the vertical shaft and a small amount of cutouts.
- the inflatable element is susceptible to damage, so that the production of the concrete cladding in the vertical shaft often has to be interrupted.
- the time required to produce and seal a concrete formwork is to be reduced, and interruptions in the production of the concrete cladding due to maintenance work are to be reduced.
- sealing arrangement is formed by a plurality of drawers which can be extended radially against the shaft wall means that
- Sealing arrangements can easily bridge the sealing gap between the support ring and the shaft wall by extending the drawers opposite the support ring against the shaft wall.
- the extendable drawers provide a sealing arrangement which can be quickly adapted to the shaft wall and which seals the concrete formwork at the lower end of the formwork element with respect to the shaft wall.
- the drawers which can be extended radially against the shaft wall, seal the concrete formwork when extended against the shaft wall, so that it can be used to manufacture the hollow cylindrical concrete cladding on the shaft wall of the shaft by filling the space formed by the concrete formwork between the formwork element, shaft wall and sealing arrangement. After curing the from above the concrete formwork filled concrete in the concrete formwork can be moved in the shaft to cover the shaft wall at a next point.
- the drawers can be driven and retracted relative to the support ring by drives.
- drives preferably hydraulic (also electrical or pneumatic) drives driven by drawers, these can be automatically extended or retracted with respect to the support ring. This further reduces manual activities when sealing the concrete formwork for the production of the concrete cladding on the shaft walls.
- a particularly advantageous embodiment of the invention provides that a separate drive is assigned to each drawer. With separately driven drawers, these can be moved independently of each other against the shaft wall. Due to the independently movable drawers, unevenness on the shaft walls of the shaft can be easily compensated for by moving the drawers independently of one another radially to the support ring against the shaft wall. This enables a particularly simple and quick sealing of the concrete formwork in the lower area of the formwork element.
- An advantageous embodiment provides that the drawers each form partial arc segments of an arc-shaped sealing arrangement.
- With the partial arch segments breakouts during the drilling or blasting of the vertical shaft and thus also deviations in the diameter of the shaft can be compensated for.
- a particularly advantageous embodiment of the invention provides that drawers arranged next to one another form common overlap areas. With this overlap area, a reliable sealing of the concrete formwork in the lower area can be achieved.
- the overlapping areas are each formed along the circumference of an arc-shaped sealing arrangement between two adjacent drawers.
- the areas between two adjacent drawers can be effectively bridged.
- the circular-arc-shaped sealing arrangement forms a closed lower surface of the concrete formwork, so that concrete poured into the concrete formwork is caught by the surface and can harden in the formwork.
- An embodiment is particularly advantageous which provides that the overlapping areas form a seal of the concrete formwork between the drawers.
- a sealed lower surface of the concrete formwork can be realized particularly easily with the sealing of the concrete formwork by the overlapping areas.
- the sealing of the concrete formwork through the overlapping areas ensures that no concrete filled in the concrete formwork gets between the extended drawers and hardens here. For this reason, the drawers that can be extended against the shaft wall can be easily retracted after the concrete has hardened in the concrete formwork and repositioned elsewhere to form a concrete cladding opposite the shaft wall.
- a particularly advantageous embodiment of the invention relates to the fact that the drawers are provided with sealing elements which bring about a seal with respect to the shaft wall.
- the sealing elements are preferably formed by solid rubber strips, which enable a sealing adaptation to the contour of the shaft wall.
- the sealing elements can also be hollow, for example as a laterally open or closed hose.
- the sealing elements are arranged on radially outer surfaces of the drawers, the sealing elements being clamped between the shaft wall and the drawers by extending the drawers against the shaft wall and thus sealing the concrete formwork.
- the sealing elements can be clamped in particularly easily by extending the drawers that can be extended against the shaft wall and thus bring about a reliable sealing of the concrete formwork.
- the clamped sealing elements compensate for unevenness on the shaft wall in the area of the individual extendable drawers. A particularly high sealing effect can be achieved by clamping the sealing element between the extendable drawers and the shaft wall, so that liquid concrete is prevented from escaping from the concrete formwork formed.
- a particularly advantageous embodiment of the invention provides that the sealing elements follow the extension movement of the drawers and thus adapt to the contour of the shaft wall.
- the sealing elements that follow the extension movement of the drawers enable the concrete formwork to be adapted particularly precisely to the contour of the shaft wall.
- the sealing elements have a continuous around the support ring Form the sealing ring. With the sealing ring continuous around the support ring, a reliable seal can be achieved by the sealing arrangement with respect to the shaft wall in the area of the support ring. With the continuous sealing ring, the circular arc-shaped sealing arrangement is completely sealed off from the shaft wall by a sealing ring.
- sealing elements are formed from an elastically stretchable material.
- sealing elements can be realized that adapt particularly well to the contour of the shaft wall and thus enable reliable sealing of the concrete formwork.
- a particularly advantageous embodiment of the invention provides that the drawers have covers, the covers forming the top of the drawers and closing the concrete formwork from below. These covers make it particularly easy to form a concrete formwork that is closed from below from the drawers that can be moved radially against the shaft wall.
- the covers ensure an even, smooth surface so that hardened concrete does not stick to the drawers.
- the covers are formed from a plastic. Plastic covers provide a suitable surface to prevent hardened concrete from sticking. This means that the extendable and retractable drawers can be easily moved even after the concrete cladding in the concrete casing has hardened.
- Figure 6 is a perspective view of the device with an alternative arrangement of the sealing elements.
- FIG. 1 An apparatus according to the invention is shown in FIG. 1 with the reference number 1.
- the device 1 shown in detail serves to fix a hollow cylindrical concrete cladding 50 on the shaft wall 100 of a vertically running shaft 101.
- the section shown corresponds to a circular arc section of the device 1, which is in the form of a circular arc.
- a shaft 101 is usually drilled in the ground and the rock during the sinking in order to develop mining deposits.
- the shaft 101 can also be milled or blasted into the ground and the rock during manufacture.
- a concrete cladding 50 is usually attached to the shaft walls 100.
- Such a concrete cladding 50 is generally produced in sections by arranging a concrete formwork in the shaft 101.
- the hollow-cylindrical concrete cladding 50 is produced in sections on the shaft walls 100.
- the device 1 is moved further downward in the shaft 101 after the hardening of a manufactured section in order to produce the next section of the concrete cladding 50. Once this has hardened, the device 1 in the shaft 101 is lowered even further downward to form a further section of the concrete cladding 50.
- the device 1 comprises a formwork element 2 radially spaced from the shaft wall 100.
- This hollow cylindrical formwork element 2 is arranged coaxially in the circular shaft 101 to the shaft wall 100 during the production of the concrete cladding 50.
- a support ring 3 is arranged, which supports the formwork element 2 from below. In the area of the support ring 3 is to seal the concrete formwork against the
- sealing arrangement 4 With the sealing arrangement 4, the concrete formwork is sealed on its underside with respect to the shaft wall 100. As a result, the concrete formwork formed by the formwork element 2 is closed in the lower region by the sealing arrangement 4.
- the sealing arrangement 4 is formed by a plurality of drawers 5, 5a, 5b which can be extended radially against the shaft wall 100.
- the drawers 5, 5a, 5b are preferably driven individually via drives 6, 6a, 6b and thus moved relative to the support ring 3.
- the drives 6, 6a, 6b are designed as hydraulically driven cylinder pistons. With this type of drive, the drawers 5, 5a, 5b can be moved against the shaft wall 100 and thus enable a quick and easy sealing against the shaft wall 100.
- FIG. 2 shows a perspective view of the device 1 according to FIG. 1 shown in detail. From this view it can be seen that the drawers 5, 5a, 5b are provided with sealing elements 8a, 8b, 8c which seal against the shaft wall 100 (FIG. 1) effect.
- Each drawer 5, 5a, 5b is assigned its own separate sealing element 8a, 8b, 8c.
- the sealing elements 8a, 8b, 8c are arranged on the radially outer surfaces of the drawers 5, 5a, 5b.
- the sealing elements 8a, 8b, 8c are preferably screwed to the radially outer surfaces of the drawers 5, 5a, 5b.
- the sealing elements 8a, 8b, 8c are pressed against the shaft wall 100 (FIG. 1) pressed.
- the sealing elements 8a, 8b, 8c are clamped between the drawers 5, 5a, 5b and the shaft wall 100 (FIG. 1) and thus seal the concrete formwork against the escape of liquid concrete.
- the sealing elements 8a, 8b, 8c With the arrangement of the sealing elements 8a, 8b, 8c on the radially outer surfaces of the drawers 5, 5a, 5b, they follow the extension movement of the drawers 5, 5a, 5b and adapt to the contour of the shaft wall 100 (FIG. 1).
- the sealing elements 8a, 8b, 8c arranged on the drawers 5, 5a, 5b are connected to one another and form a continuous sealing ring 8 which extends around the entire support ring 3.
- the material of the sealing elements 8a, 8b, 8c is elastic and stretchable, so that a precise adaptation to the contour of the shaft wall 100 is made possible when the sealing elements are clamped between the shaft wall 100 and the drawers 5, 5a, 5b.
- covers 9, 9a, 9b made of plastic are preferably arranged on the drawers 5, 5a, 5b and form the top of the drawers 5, 5a, 5b. These covers 9, 9a, 9b close the concrete formwork tightly from below. The use of plastic covers prevents the hardened concrete from sticking to the retractable and extendable drawers 5, 5a, 5b.
- FIG. 3 shows a sectional view through the device according to FIGS. 1 and 2 in the circumferential direction.
- This illustration clearly shows how the drawers 5, 5a, 5b extended against the shaft wall 100 and the sealing elements 8, 8a, 8b (FIG. 2) arranged on the radially outer surfaces of the drawers 5, 5a, 5b (FIG. 2) against the shaft wall 100 to press.
- the sealing elements 8a, 8b, 8c (FIG. 2) clamped between the drawers 5, 5a, 5b and the shaft wall 100 thus ensure reliable and quick sealing of the concrete formwork, so that after the drawers 5, 5a, 5b are extended against the shaft wall 100 can be started quickly with the filling of the concrete formwork with liquid concrete to produce the concrete cladding 50 in the section.
- the elastically stretchable material of the sealing elements 8a, 8b, 8c ensures a reliable seal between the drawers 5, 5a,
- the covers 9, 9a, 9b which are preferably arranged on the upper side of the extendable drawers 5, 5a, 5b, form an end to the concrete formwork from below and prevent hardened concrete from adhering. So the drawers 5, 5a, 5b after curing of the section of the concrete cladding 50 is retracted and the device 1 is simply moved in the shaft 101.
- FIG. 1 A single drawer 5 of the device 1 (FIG. 1) is shown in FIG. It can be clearly seen in this illustration that the drawer 5 forms a partial arc segment of the circular arc-shaped sealing arrangement 4 (FIG. 1) on the support ring 3 (FIG. 1). This partial arch segment has a sealing element 8a arranged on the radially outer surface of the drawer 5. This sealing element 8a is pressed when the drawer 5 is extended via the hydraulic drive 6 shown against the shaft wall 100 (FIG. 1) and thus seals the concrete formwork. On the top of the drawer 5, the plastic cover 9 can also be seen, which prevents the hardening concrete from adhering to the extended drawer 5.
- the drawers 5, 5a, 5b of the device 1 are preferably all constructed identically.
- FIG. 5 shows the overlap region 7 between two drawers 5, 5a of the circular-arch-shaped sealing arrangement 4 arranged next to one another (FIG. 1).
- the overlap regions 7, 7a are each formed along the circumference of the sealing arrangement 4 (FIG. 2) between two adjacent drawers 5, 5a, 5b.
- the overlap of the drawers 5, 5a in the overlap area 7 results in a sealing of the concrete formwork between the drawers 5, 5a. Even when the drawers 5, 5a are fully extended, the overlap region 7 closes off the concrete formwork from below and thus prevents liquid concrete from getting between the extended drawers 5, 5a and hardening there.
- FIG. 6 shows a perspective view of the device 1 according to FIG. 1 shown in detail. From this view it can be seen that the drawers 5, 5a, 5b are provided with sealing elements 8a, 8b, 8c, which seal against the shaft wall 100 (FIG. 1) effect. This is because drawers 5, 5a, 5b are assigned offset sealing elements 8a, 8b, 8c which overlap the drawers 5, 5a, 5b.
- the sealing elements 8a, 8b, 8c are arranged on the radially outer surfaces of the drawers 5, 5a, 5b.
- the sealing elements 8a, 8b, 8c are preferably screwed to the radially outer surfaces of the drawers 5, 5a, 5b.
- the sealing elements 8a, 8b, 8c are pressed against the shaft wall 100 (FIG. 1).
- the sealing elements 8a, 8b, 8c are clamped between the drawers 5, 5a, 5b and the shaft wall 100 (FIG. 1) and thus seal the concrete formwork against the escape of liquid concrete.
- the sealing elements 8a, 8b, 8c follow the extension movement of the drawers 5, 5a, 5b and adapt to the contour of the shaft wall 100 (FIG. 1). It can be seen from the illustration according to FIG.
- the sealing elements 8a, 8b, 8c which are arranged offset to the drawers 5, 5a, 5b, with the drawers 5, 5a extended to different extents, meander along the offset formed in this way and over the offset form a curved curve, since the sealing elements 8a, 8b, 8c extend over the overlap region 7 of the drawers 5, 5a, 5b over two adjacent drawers 5, 5a, 5b. It can also be seen from FIG. 6 that the sealing elements 8a, 8b, 8c arranged on the drawers 5, 5a, 5b are connected to one another and form a continuous sealing ring 8 which extends around the entire support ring 3.
- the material of the sealing elements 8a, 8b, 8c is elastic and stretchable, so that a precise adaptation to the contour of the shaft wall 100 is made possible when the sealing elements are clamped between the shaft wall 100 and the drawers 5, 5a, 5b.
- covers 9, 9a, 9b made of plastic are preferably arranged on the drawers 5, 5a, 5b and form the top of the drawers 5, 5a, 5b. These covers 9, 9a, 9b close the concrete formwork tightly from below. The use of plastic covers prevents the hardened concrete from sticking to the retractable and extendable drawers 5, 5a, 5b.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018128519.1A DE102018128519B3 (en) | 2018-11-14 | 2018-11-14 | Support ring with extendable drawers |
PCT/EP2019/081188 WO2020099493A1 (en) | 2018-11-14 | 2019-11-13 | Shuttering with supporting ring having extendable drawers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3880935A1 true EP3880935A1 (en) | 2021-09-22 |
Family
ID=68808286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19816536.7A Pending EP3880935A1 (en) | 2018-11-14 | 2019-11-13 | Shuttering with supporting ring having extendable drawers |
Country Status (7)
Country | Link |
---|---|
US (1) | US11512591B2 (en) |
EP (1) | EP3880935A1 (en) |
CA (1) | CA3119895A1 (en) |
DE (1) | DE102018128519B3 (en) |
EA (1) | EA202191348A1 (en) |
WO (1) | WO2020099493A1 (en) |
ZA (1) | ZA202103246B (en) |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB270041A (en) * | 1926-03-02 | 1927-05-05 | Thomas Blandford | Improvements in and relating to concrete linings for shafts, wells and other shaft-like structures |
DE1844009U (en) | 1959-08-08 | 1961-12-28 | Josef Deuerer | SCAFFOLDING BEAM BRACKET FOR INSTALLATION IN SHAFTS. |
DE1483942A1 (en) | 1966-02-07 | 1969-10-16 | Saarbergwerke Ag | Relocatable work platform for the production and expansion of a manhole, in particular blind manhole and method for laying the stage |
BE792501A (en) * | 1971-12-22 | 1973-03-30 | Walbroehl H T | PROCEDURE AND FORMWORK FOR THE REALIZATION OF CONCRETE COATING OF GALLERIES, TUNNELS, WELLS, ETC. |
US3958637A (en) | 1975-05-22 | 1976-05-25 | The United States Of America As Represented By The Secretary Of The Interior | Technique for lining shaft |
US4067675A (en) * | 1976-06-09 | 1978-01-10 | Hanson Raymond A | Apparatus for in situ lining of an upwardly open shaft with monolithic concrete |
US4031708A (en) * | 1976-09-20 | 1977-06-28 | Hanson Raymond A | Slipforming method and apparatus for in situ lining of an upwardly open shaft with monolithic concrete |
US4270876A (en) | 1979-12-27 | 1981-06-02 | The United States Of America As Represented By The United States Department Of Energy | Method of lining a vertical mine shaft with concrete |
DE3526205A1 (en) | 1985-07-23 | 1987-02-05 | Bilfinger Berger Bau | Method and apparatus for driving and lining an underground tunnel or gallery |
DE3625129C2 (en) | 1986-07-25 | 1995-09-07 | Gewerk Auguste Victoria | Manhole expansion with cast iron ring elements for deep freeze shafts in the mining industry |
JP2529639B2 (en) | 1993-04-27 | 1996-08-28 | 博之 清水 | Slave mounting method for concrete formwork |
JP3725381B2 (en) | 1999-11-04 | 2005-12-07 | 平和奥田株式会社 | Stabilizer for buried pipe |
ES2235667B1 (en) * | 2004-12-21 | 2006-10-01 | Catalana D'innovacions Per La Construccio, S.L. | "PROCEDURE AND DEVICE FOR THE EXCAVATION OF WELLS". |
JP5295310B2 (en) * | 2011-06-08 | 2013-09-18 | 東日本旅客鉄道株式会社 | Drilling hole wall protective pipe sealing device |
CN108775241B (en) * | 2018-05-23 | 2020-03-10 | 北京中煤矿山工程有限公司 | Filling process capable of enabling slurry to be uniformly distributed between inner wall and outer wall of freezing shaft |
CN108506002B (en) * | 2018-05-23 | 2024-03-26 | 北京中煤矿山工程有限公司 | Outer wall template for forming slurry diffusion groove on outer wall surface |
-
2018
- 2018-11-14 DE DE102018128519.1A patent/DE102018128519B3/en active Active
-
2019
- 2019-11-13 CA CA3119895A patent/CA3119895A1/en active Pending
- 2019-11-13 EP EP19816536.7A patent/EP3880935A1/en active Pending
- 2019-11-13 US US17/293,954 patent/US11512591B2/en active Active
- 2019-11-13 EA EA202191348A patent/EA202191348A1/en unknown
- 2019-11-13 WO PCT/EP2019/081188 patent/WO2020099493A1/en unknown
-
2021
- 2021-05-13 ZA ZA2021/03246A patent/ZA202103246B/en unknown
Also Published As
Publication number | Publication date |
---|---|
US20220010679A1 (en) | 2022-01-13 |
US11512591B2 (en) | 2022-11-29 |
DE102018128519B3 (en) | 2020-01-16 |
ZA202103246B (en) | 2022-10-26 |
CA3119895A1 (en) | 2020-05-22 |
WO2020099493A1 (en) | 2020-05-22 |
EA202191348A1 (en) | 2021-09-01 |
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Inventor name: ROSSOW, SEBASTIAN Inventor name: AHLBRECHT, THOMAS Inventor name: DIACONU, GABRIEL Inventor name: SCHELKMANN, DIRK Inventor name: SIEDENTOPF, WERNER |
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