EP0095193B1 - Cadre d'étayage pour panneaux de soutènement - Google Patents

Cadre d'étayage pour panneaux de soutènement Download PDF

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Publication number
EP0095193B1
EP0095193B1 EP83105184A EP83105184A EP0095193B1 EP 0095193 B1 EP0095193 B1 EP 0095193B1 EP 83105184 A EP83105184 A EP 83105184A EP 83105184 A EP83105184 A EP 83105184A EP 0095193 B1 EP0095193 B1 EP 0095193B1
Authority
EP
European Patent Office
Prior art keywords
abutment
faces
face
spring
support
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
Application number
EP83105184A
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German (de)
English (en)
Other versions
EP0095193A1 (fr
Inventor
Josef Emunds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to AT83105184T priority Critical patent/ATE17027T1/de
Publication of EP0095193A1 publication Critical patent/EP0095193A1/fr
Application granted granted Critical
Publication of EP0095193B1 publication Critical patent/EP0095193B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E02D17/083—Shoring struts

Definitions

  • the invention is based on a stenter for sheeting panels according to the preamble of claim 1.
  • a stenter is known from DE-PS No. 2257881.
  • the spreaders are mounted on both sides between the walls of cross-sectionally U-shaped abutment posts pivotable about horizontal pivot axes and are held at right angles to the abutment posts and the shoring panels by means of relatively stiff leaf springs.
  • the arrangement is such that the spreading by relatively small angles, e.g. B. 5 °, about its pivot axis in the abutment post can be pivoted so that the two shoring panels of a shoring unit can be moved vertically by a certain amount independently of the other shoring panel.
  • the known stenter has the disadvantage that leaf springs change their spring characteristics significantly as a result of contamination, corrosion and oxidation. Furthermore, with the known stenter, the assembly is so complex that special tools and experts are required to replace the springs. Finally, the known clamping frame has the disadvantage that the leaf springs are relatively heavy if they are to have a greatly increasing rigidity as the pivoting angle increases.
  • the invention specified in claim 1 has for its object to improve the resilient support of the struts in the abutment post so that dirt, corrosion and oxidation have only a minor influence on the spring characteristics and that despite progressive and high spring stiffness, the weight of the resilient support and whose material and assembly effort are low.
  • the roller-shaped, rubber-elastic spring bodies clamped between the arched support surfaces and the abutment surfaces roll onto the surfaces moving relative to one another and are thereby forced into the areas of the spring chambers that become narrower in cross section.
  • the progressiveness of the spring stiffness essentially depends only on the angle at which the spring space becomes narrower in the pivoting direction. The larger this angle, the greater the spring stiffness.
  • the spring body made of natural or synthetic rubber is easily adaptable to the respective requirements, because the load capacity increases with the length of the roller-shaped spring body. With stops it can be achieved that the spring body is protected against destruction or overload.
  • a shoring device is shown with two parallel shoring panels 1, 2, which are kept at a distance by means of a vertical abutment post 3, 4 and two superposed spreaders 5, 6 clamping frame.
  • the shoring panels 1, 2 are connected to one another via the clamping frame 3, 4, 5, 6.
  • the shoring plates 1, 2 can also be guided vertically displaceably in the abutment post of the stenter, so that the shoring plates 1, 2 and the stenter are only joined together to form a shoring device in the trench to be supported.
  • the ends of the spreaders 5, 6 are designed as threaded sleeves 7 in the exemplary embodiment shown here. Threaded spindles 8 are guided in these and are connected to one another via couplings 9. The threads of the two threaded spindles 8 and the two threaded sleeves 7 of a strut 5 or 6 are in opposite directions.
  • the spreaders 5, 6 are pivoted on both sides via pivot axes 10 in the abutment posts 3, 4, the cross sections of which are U-shaped. So that the shoring plates 1, 2 and the clamping frame can form a stable unit, roller-shaped, rubber-elastic spring bodies 15 are provided as springs, which strive to keep the spreaders 5, 6 in a horizontal position. So that, for example, the left abutment post 3 can be pulled up or pushed down independently of the right abutment post 4, the spreaders 5, 6 can be pivoted about the pivot axes 10 against the action of the spring body 15.
  • roller-shaped spring bodies 15 roll, as FIG. 2 shows in particular on a support surface 11 connected to the spreader 5 and an abutment surface 12 connected to the abutment post 3 and are pressed into the narrowing areas of their spring chambers 13 and 14.
  • the pivot axis 10 of the spreaders 5 is mounted in elongated holes 16 which extend horizontally and are incorporated in side walls 20, 21 of a housing which can be inserted and fastened in the abutment posts 3 or 4.
  • the support surface 11 at the ends of the struts 5 or 6 is curved parallel to the pivot axis 10 and symmetrically to the longitudinal axis of the struts 5 or 6 with a radius which corresponds to approximately twice the distance of the pivot axis 10 from the support surface 11.
  • the abutment surface 12 corresponding to this support surface 11 has a vertical plane which merges into a roof surface 18 and a bottom surface 19 approximately in the middle of the spring chambers 13, 14 with a rounding 17 which corresponds approximately to the diameter of the roller-shaped spring bodies 15.
  • the roof surface 18 and the floor surface 19 enclose an angle of 90 to 100 ° between them and the vertical plane.
  • the support surface 11 is formed by two commercially available angle profiles, the long legs of which, forming the vertical plane, are welded together.
  • the support surface 11 can also be curved with a radius that corresponds approximately to the distance of the support surface 11 from the pivot axis 10.
  • the roof surface 18 and the bottom surface 19 are inclined at such an angle that the cross-sectional constriction of the spring chambers 13, 14 is approximately the same in both pivoting directions.
  • the support surface 11 ' is curved around two parallel axes offset symmetrically to the longitudinal axis of the struts 5, 6, and the abutment surface 12' interacting therewith is composed of four partial surfaces, two of which are each in one There are angles of 95 ° to each other and are assigned to a curvature of the support surface 11 '.
  • the four partial surfaces of the abutment surface 12 ' are formed by the inner sides of two commercially available angle profiles welded to one another with their long legs and are arranged in relation to the two curvatures of the support surface 11' in such a way that the cross-sectional constriction of the spring chambers 13 ', 14' is approximately the same in both pivot directions.
  • the two inner, ridge-like partial surfaces form a stop 24 against which the two curvatures of the supporting surface 11 ′ abut when the maximum permissible pivoting angle is reached.
  • the two curvatures of the support surface 11 ' are formed by a correspondingly shaped sheet steel wall 26 which is welded to a foot plate 27 welded onto the front side of the struts 5, 6.
  • the restoring force of the spring body 15 is greater, the greater the radius of the curvature of the support surface 11 or the greater the distance between the two curvature axes of the support surface 11 '.
  • FIG. 6 A particularly advantageous embodiment of the invention results from FIG. 6.
  • a roller-shaped spring body 15 is arranged in each of these spring chambers 13.
  • the support surfaces 11, 11 ', 11 ", 11"' are formed by the outer surfaces of a square tube 31, the width of which is approximately one third to one half smaller than the width of the square tube forming the abutment surfaces. In the relaxed state, this inner square tube 31 is held offset by 45 ° to the outer square tube by the roller-shaped spring bodies 15 inserted with prestress.
  • the elastic bearing formed in this way is not only elastic about the pivot axis, but is elastic in all directions.
  • a tube with a circular cross section can also be used. Basically, it does not matter whether the abutment surfaces or the support surfaces are attached to the spreader end.
  • the outer square tube 31 can thus be part of the abutment post or the abutment or else be attached to the front end of a strut. Accordingly, the inner square tube 31 can be attached to the end of a strut or can also be part of the abutment.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Clamps And Clips (AREA)
  • Wing Frames And Configurations (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (10)

1. Cadre de serrage pour des plaques de blindage (1, 2) étayant les parois d'une tranche à câbles comprenant au moins deux étrésillons (5, 6) superposés qui sont maintenus des deux côtés dans des montants de support (3,4) verticaux, qui maintiennent les plaques de blindage (1, 2), les étrésillons (5, 6) étant orientables par des axes de basculement (10) et maintenus par des ressorts (15) essentiellement rectangulairement aux montants de supports, caractérisé en ce qu'aux extrémités des étrésillons (5,6) sont placées parallèlement aux axes de basculement (10) des surfaces d'appui (11, 11') bombées ou inclinées, celles-ci correspondant aux surfaces contre-appui (12, 12') sur les montants de support (3 ou 4), les surfaces contre-appui formant avec les surfaces d'appui (11,11') au moins deux espaces (13,13', 14, 14') pour ressorts à chacune des extrémités des étrésillons (5, 6) dont les coupes dans le plan de basculement des étrésillons (5, 6) diminuent de façon cunéiforme dans les deux sens de basculement et en ce qu'en chaque espace (13, 13'; 14, 14') pour ressorts sont engagés comme ressort sous prétension des corps de ressort (15) cylindriques ayant l'élasticité du caoutchouc.
2. Cadre de serrage selon la revendication 1, caractérisé en ce que les axes de basculement (10) des étrésillons (5, 6) sont maintenus dans des trous oblongs (16) allongés rectangulairement à l'axe longitudinal des montants de support (3,4).
3. Cadre de serrage selon la revendication 1 ou 2, caractérisé en ce que la surface d'appui (11) aux extrémités des étrésillons (5 ou 6) parallèles à l'axe de basculement (10) et symétriques à l'axe longitudinal des étrésillons (5 ou 6) est bombée avec un rayon qui correspond à la distance de l'axe de basculement (10) jusqu'à la surface d'appui (11) multipliée avec un coefficient de 1,2 à 3 et que la surface contre-appui (12) correspondant à cette surface d'appui (11) forme un plan vertical, qui, au niveau de la moitié des espaces (13, 14) pour ressort, passe à une surface supérierue (18) et une surface inférieure (19) par une courbure (17) correspondant environ au diamètre des corps de ressort cylindriques (15), ces surfaces supérieure (18) et inférieure (19) formant avec le plan vertical un angle de 90 à 100°.
4. Cadre de serrage selon la revendication 3, caractérisé en ce que la surface contre-appui (12) est formée de deux profilés à angles de type commercial dont les branches longues formant le plan vertical sont soudées.
5. Cadre de serrage selon la revendication 3, caractérisé en ce que la surface d'appui (11) est bombée avec un rayon qui correspond environ à la distance entre la surface d'appui (11) et l'axe de basculement (10) et que les surfaces supérieure (18) et inférieure (19) sont inclinées selon un angle tel que la diminution de la coupe des espaces de ressort (13, 14) soit égale dans les deux sens de basculement.
6. Cadre de serrage selon la revendication 1 ou 2, caractérisé en ce que la surface d'appui (11') bombée est courbée par deux axes parallèles et décalés symétriquement à l'axe longitudinal des étrésillons (5, 6) et que la surface contre-appui (12') correspondante se compose de quatre surfaces partielles dont deux respectivement font un angle de 90 à 110° et sont associées à une courbure.
7. Cadre de serrage selon la revendication 6, caractérisé en ce que les quatre surfaces partielles de la surface contre-appui (12') sont formées par les côtés internes de deux profilés à angle de type commercial soudés l'un à l'autre par les banches longues.
8. Cadre de serrage selon une des revendications 1 à 7, caractérisé en ce que les profilés ou les parois composant les surfaces contre-appui (11, 11') ainsi que les parois latérales (20, 21 ) dans lesquelles les axes de basculement (10) des étrésillons (5, 6) sont maintenus forment une unité rigide en soi insérable dans les montants de support (3,4).
9. Dispositif de serrage selon la revendication 1 pour des plaques de blindage (1, 2) étayant une tranchée à câbles comprenant au moins deux étrésillons (5, 6) superposés qui sont maintenus des deux côtés dans des contre-appuis orientables par des axes de basculement (10) et maintenus au moyen de ressorts (15) essentiellement rectangu- lairementau plan des contre-appuis, caractérisé en ce que les surfaces contre-appui (12, 12', 12", 12"') sont formées par les surfaces internes d'un tuyau carré (30) et que ces surfaces contre-appui forment avec les surfaces d'appui (11, 11', 11", 11 "') quatre espaces (13) pour ressorts dans lesquels est engagé respectivement un corps de ressort (15) cylindrique.
10. Dispositif de serrage selon la revendication 9, caractérisé en ce que les surfaces d'appui (11, 11' ,11", 11'") sont formées par les surfaces externes d'un tuyau carré (31 ) dont la largeur est environ de la moitié à un tiers pl us petite que la largeur du tuyau carré (30) formant les surfaces contre-appui (12,12', 12", 12'"), et le tuyau carré (31 ) étant placé en l'intérieur de celui-ci (30) diagonalement, c'est-à-dire décalé de 45°.
EP83105184A 1982-05-25 1983-05-25 Cadre d'étayage pour panneaux de soutènement Expired EP0095193B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83105184T ATE17027T1 (de) 1982-05-25 1983-05-25 Spannrahmen fuer verbauplatten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3219636 1982-05-25
DE19823219636 DE3219636A1 (de) 1982-05-25 1982-05-25 Spannrahmen fuer verbauplatten

Publications (2)

Publication Number Publication Date
EP0095193A1 EP0095193A1 (fr) 1983-11-30
EP0095193B1 true EP0095193B1 (fr) 1985-12-18

Family

ID=6164449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83105184A Expired EP0095193B1 (fr) 1982-05-25 1983-05-25 Cadre d'étayage pour panneaux de soutènement

Country Status (3)

Country Link
EP (1) EP0095193B1 (fr)
AT (1) ATE17027T1 (fr)
DE (2) DE3219636A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3432244A1 (de) * 1984-07-13 1986-01-16 Benno 8400 Regensburg Domesle Gelenkkopfanordnung zum gelenkigen und jederzeit wieder loesbaren verbinden einer spreize mit einer verbauwand eines verbaus
DE3909110A1 (de) * 1989-03-20 1990-09-27 Josef Krings Stuetzschuh fuer eine spreize einer verbauvorrichtung
DE4009528A1 (de) * 1989-04-12 1990-10-18 Uffmann Hans Peter Dr Ing Verbaueinrichtung fuer den grabenverbau
GB2231353A (en) * 1989-05-03 1990-11-14 Mabey Hire Co Cantilever springs in a strong-box
GB2231352A (en) * 1989-05-03 1990-11-14 Mabey Hire Co Strut-panel joint in a strong-box
DE4209675C1 (fr) * 1992-03-25 1993-07-15 Teska Verbautechnik Gmbh, 4200 Oberhausen, De
DE4341626C1 (de) * 1993-12-07 1995-03-16 Richter Wolfgang Ing Grad Verbindungsanordnung
DE19621826A1 (de) * 1996-05-31 1997-12-04 Emunds & Staudinger Gmbh & Co Anschlag für eine Spreize einer Grabenverbauvorrichtung
EP2453062B1 (fr) * 2010-11-16 2016-02-17 Marti AG Bern, Moosseedorf Procédé et système d'étai pour travaux de terrassement
CA2898002A1 (fr) 2015-07-22 2017-01-22 James Foley Caisson de tranchee et methode d'assemblage
CN108517875B (zh) * 2018-04-13 2020-09-25 嘉兴市嘉泽园艺有限公司 一种桥梁基坑支护及其施工方法
EP4256134A1 (fr) * 2021-05-27 2023-10-11 RMD Kwikform Limited Agencement d'étayage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279559B (de) * 1966-02-02 1968-10-03 Superior Scaffold Co Tiefbaustrebe
FR1508801A (fr) * 1967-01-20 1968-01-05 Cage de protection pour terrassements
AT317782B (de) * 1972-08-04 1974-09-10 Krings Josef Gleitschuh für eine Spannvorrichtung einer Grabenverbauvorrichtung
DE2832321C2 (de) * 1978-07-22 1982-10-14 Josef Ing.(grad) 5142 Hückelhoven Emunds Grobeinstellbarer Spannrahmen für Verbauplatten
GB2094373B (en) * 1981-03-07 1984-08-01 Morris Alan Trench shoring

Also Published As

Publication number Publication date
ATE17027T1 (de) 1986-01-15
DE3361550D1 (en) 1986-01-30
DE3219636A1 (de) 1983-12-01
EP0095193A1 (fr) 1983-11-30

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