EP0589419A1 - Dispositif de blindage - Google Patents

Dispositif de blindage Download PDF

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Publication number
EP0589419A1
EP0589419A1 EP93115200A EP93115200A EP0589419A1 EP 0589419 A1 EP0589419 A1 EP 0589419A1 EP 93115200 A EP93115200 A EP 93115200A EP 93115200 A EP93115200 A EP 93115200A EP 0589419 A1 EP0589419 A1 EP 0589419A1
Authority
EP
European Patent Office
Prior art keywords
abutment
shoring
plates
leaf
posts
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.)
Withdrawn
Application number
EP93115200A
Other languages
German (de)
English (en)
Inventor
Hans Pelzer
Wilhelm Hess
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.)
Emunds and Staudinger GmbH
Original Assignee
Emunds and Staudinger GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Emunds and Staudinger GmbH filed Critical Emunds and Staudinger GmbH
Publication of EP0589419A1 publication Critical patent/EP0589419A1/fr
Withdrawn legal-status Critical Current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
    • E02D17/083—Shoring struts

Definitions

  • the invention relates to a shoring device for supporting trench walls with two large-area shoring plates, which are held apart by a supporting frame arranged in the middle of the shoring plates or two support frames arranged at the ends of the shoring plates and connected to form a unit, a supporting frame consisting of two vertical, cross-sectionally U-shaped abutment posts and two length-adjustable spreaders connected to the abutment posts pivotably about horizontal axes, and the spreaders by means of leaf springs attached to the abutment posts, the resilient ends of which press against the spreaders from above and below, at right angles to the abutment posts and sheeting plates are held.
  • a shoring device of this type is known from DE 22 57 881 C3.
  • the ends of the struts are mounted in open bearing shells which are fastened to the inside of the side walls of the abutment posts.
  • the two lateral surfaces of the stub axles, each pointing towards the longitudinal axis of the trench, are encompassed by curved ends of at least two leaf springs arranged in mirror image to one another, each of which wraps around a horizontal retaining bolt inserted above and below the stub axle in the side walls.
  • the inward-facing, resilient legs of the leaf springs which press against the ends of the struts from above and from below, are pretensioned by means of horizontal tensioning bolts, which are inserted inwards against the retaining bolts, ie away from the shoring panels, into the abutment posts.
  • the invention has for its object to improve a shoring device of the type mentioned so that it is lighter in weight and less expensive to manufacture with the same resilience and that the stock-holding and replacement of the springs is significantly simplified.
  • Each leaf spring can consist of a spring steel part or a package of spring steel parts. If a progressive spring characteristic is desired, the spring leaves of a package can be stepped. It will be useful for a spring assembly to be composed of only two or at most three spring leaves.
  • the shoring device which is partially shown in FIGS. 1 and 2, consists of two shoring plates 1 and 2, which are kept at a distance from a support frame and are connected to form a unit.
  • the support frame is composed of two vertical abutment posts 3 and 4 with a U-shaped cross section and two length-adjustable spreaders 5 connected to the abutment posts 3, 4 and pivotable about vertical axes 6 and 7.
  • the spreaders 5 are held at right angles to the abutment posts 3 and 4 by means of leaf springs 15 and 16 fastened to the abutment posts 3 and 4.
  • the free ends of the leaf springs 15 and 16 lie with prestress on support webs 21 which are attached to the ends of the struts 5 and to the bearing bushes 12 of the struts 5.
  • Above and below the horizontal axes 6 and 7 are arranged in the abutment posts 3 and 4 parallel to the axes 6 and 7 abutment plates 17, on each of which a substantially flat leaf spring 15, 16 is attached easily replaceable.
  • the leaf springs 15 and 16 have a through hole 20 which at System of the leaf springs 15 and 16 on the base wall of the abutment posts 3 and 4 is aligned with a threaded bore which is arranged in the abutment plate 17.
  • a screw 19 and a clamping plate 18 By means of a screw 19 and a clamping plate 18, the leaf springs 15 and 16 can be fastened on the abutment plates 17 in such a way that they rest on the support webs 21 of the bearing bushes 12 with a certain preload.
  • the abutment plates 17 are essentially rectangular and are welded to the side walls of the U-shaped abutment posts 3 and 4.
  • the clamping plates 18 can be loose, but they can also be welded to the base wall of the abutment posts 3 and 4 with their edge facing the base wall of the abutment posts 3 and 4.
  • the gap between the abutment plate 17 and the clamping plate 18 is dimensioned so that the leaf springs 15 and 16 can be easily inserted into the gap thus formed.
  • the leaf springs 15 and 16 can each consist of only one steel spring leaf, but they can also be formed by a package of steel spring leaves. 1 and 2, the leaf spring 16 'is formed by two spring leaves, the outer spring leaf resting on the inner spring leaf being shorter than the inner spring leaf.
  • the spreader 5 shown in FIGS. 1 and 2 is composed of a spindle 9, a spindle nut 10, a spacer tube 11 and the two bearing bushes 12. Furthermore, there is an intermediate bushing 13 between the spindle tube 9 and the bearing bush 12.
  • shoring panels 1 and 2 When dismantling a shoring device, shoring panels 1 and 2 are raised alternately.
  • the spreaders 5 pivot relative to the abutment posts 3 and 4 against the force of the springs 15 and 16 by about 5 to 8 °.
  • FIG. 2 when the left shoring plate 1 is raised compared to the right shoring plate 2, the lower leaf spring 16 of the left abutment post 3 and the upper leaf spring 15 of the right abutment post 4 are loaded, while the other two leaf springs 15 and 16 'are relieved.
  • parts 23 are provided on the bearing bushes 12 'parallel to the support webs 21 and form a through opening 22 for the leaf springs 15 and 16 between them and the support web 21.

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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)
  • Building Environments (AREA)
  • Springs (AREA)
EP93115200A 1992-09-22 1993-09-21 Dispositif de blindage Withdrawn EP0589419A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4231614 1992-09-22
DE4231614A DE4231614A1 (de) 1992-09-22 1992-09-22 Verbauvorrichtung

Publications (1)

Publication Number Publication Date
EP0589419A1 true EP0589419A1 (fr) 1994-03-30

Family

ID=6468487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93115200A Withdrawn EP0589419A1 (fr) 1992-09-22 1993-09-21 Dispositif de blindage

Country Status (2)

Country Link
EP (1) EP0589419A1 (fr)
DE (1) DE4231614A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021189751A1 (fr) * 2020-03-25 2021-09-30 上海建工二建集团有限公司 Système de support annulaire de colonne de précontrainte, et son procédé de contrôle de déformation

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103243722B (zh) * 2012-02-13 2015-10-28 郑鸿彰 基坑新型内支撑的施工方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257881A1 (de) * 1972-11-25 1974-05-30 Josef Emunds Verbauvorrichtung zum abstuetzen von grabenwaenden
JPS6073914A (ja) * 1983-09-30 1985-04-26 Umezawa Eng:Kk 土留装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE417805C (de) * 1925-08-18 Traugott Onnasch Abfederung fuer Kraftfahrzeuge
DE3149309A1 (de) * 1981-12-12 1983-06-16 Volkswagenwerk Ag, 3180 Wolfsburg "radaufhaengung fuer kraftfahrzeuge, insbesondere personenkraftwagen"
FR2528364B1 (fr) * 1982-06-14 1985-12-20 Renault Train arriere de suspension notamment pour petits vehicules automobiles
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
DE3711408A1 (de) * 1987-03-31 1988-10-20 Sbh Anlage Technik Gmbh Gleitschuh

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2257881A1 (de) * 1972-11-25 1974-05-30 Josef Emunds Verbauvorrichtung zum abstuetzen von grabenwaenden
JPS6073914A (ja) * 1983-09-30 1985-04-26 Umezawa Eng:Kk 土留装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 215 (M - 409)<1938> 3 September 1985 (1985-09-03) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021189751A1 (fr) * 2020-03-25 2021-09-30 上海建工二建集团有限公司 Système de support annulaire de colonne de précontrainte, et son procédé de contrôle de déformation

Also Published As

Publication number Publication date
DE4231614A1 (de) 1994-03-24

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