US3727413A - Trench shoring, shuttering and sheeting system - Google Patents

Trench shoring, shuttering and sheeting system Download PDF

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Publication number
US3727413A
US3727413A US00170553A US3727413DA US3727413A US 3727413 A US3727413 A US 3727413A US 00170553 A US00170553 A US 00170553A US 3727413D A US3727413D A US 3727413DA US 3727413 A US3727413 A US 3727413A
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Prior art keywords
trench
posts
elements
pair
shoring
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Expired - Lifetime
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US00170553A
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English (en)
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P Christen
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Individual
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Individual
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    • 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

Definitions

  • a Ltn may PATENTEDAFR 1 71975 SHEET 2 [IF 5 Paul CHRISTEN INVENTOR Attorney PATENTED APR 1 7 i975 SHEET 3 OF 5 Paul CHBISTEN INVbNTOR Attorney Paul CHRISTEN INVENTOR.
  • the present invention relates to an improved trench shoring system which overcomes these disadvantages.
  • each shoring element detachably arranged one above the other between two vertical props, on each wall of the trench.
  • Each shoring element comprises two parts relatively displaceable lengthwise and joined friction-tight at the points where they overlap.
  • the top longitudinal edge of each lower element is substantially level with the bottom longitudinal edge of the next element above it, the bottom longitudinal edges of the elements being set back in relation to the top edges when looking at them from inside the trench, so that the top longitudinal edges of the shoring elements projecting towards the inside of the trench provide handgrips and footholds for climbing into and out thereof.
  • the system of the present invention has the advantage that the steps formed by the shoring enable it to be used as a ladder extending the full length of the trench or shoring.
  • the principal advantage of the design in accordance with the invention is, however, seen in that the longitudinal spacing between the vertical props does not have to be maintained exacty. Instead it may be varied, allowing speedy and convenient erection of the shoring.
  • Another particular advantage is that shoring elements may be fitted or taken out separately. All these features enable the length of the trench to be subdivided rationally and permit the shoring to be conveniently adapted to local obstacles, such as service pipes, cables, large stones, shafts, etc.
  • FIG. 1 represents a vertical cross section of the shoring system erected in a deep trench
  • FIG. 2 is a vertical section taken along the line IIII of FIG. 1 with an elevation of one side of the trench shoring, on a larger scale;
  • FIG. 3 shows in plan view a fragmentary part of the trench shoring system
  • FIG. 4 is a sectional view of a shoring element taken along the line IVIV of FIG. 3, on an enlarged scale;
  • FIG. 5 is a sectional view of the joint in a two-piece shoring element extending between two vertical props
  • FIG. 6 is a top view of a joint fixing clamp on an enlarged scale, in the direction of the arrow VI of FIGS;
  • FIG. 7 shows a fragmentary view of a vertical prop with two adjacent shoring elements hung therein
  • FIG. 8 shows a sectional view of the shoring system erected in a less deep trench.
  • the trench shoring system illustrated in FIG. 1 to 3 has vertical props designated 1 of H profile arranged at intervals of, say, 3 meters.
  • a hole 2 (FIG. 2) for pulling out the prop.
  • the bottom ends 3 of the props slope in toward the side of the trench G, so as to force the props against the trench wall on being driven in.
  • holes 4 In the two flanges of the vertical prop 1, on the sides of the flange facing into the trench, are holes 4 at regular intervals corresponding to the height of a shoring element.
  • the standardized shoring elements 5 are profiles of sheet steel or light metal, manufactured with a cross section calculated to resist bending (FIGS.4 and 5).
  • the two longitudinal edges of the shoring elements 5 have rolled rims 6, into which projecting fixing pins 7 or 7' are inserted and secured at the end adjacent to the vertical prop.
  • the fixing pins 7 in the top Ion gitudinal edges of the profiles engage the holes 4 of the vertical props 1. Ifthe distance between vertical props in three meters for example, with shoring elements having a length of about two meters, it will be necessary to use two elements to bridge this interval.
  • the elements overlap, and are held together where they overlap by means of fixing clamps 8.
  • FIG. 3 the elements 5 are held together at the overlapping joint by means of two clamps 8. These clamps have each a locking device 9 (FIGS).
  • the clamps are of narrow rectangular shape and accommodate two shoring elements 5 lying one above the other together with the locking device 9.
  • the latter includes a pivot pin 11 protruding through the top and bottom of clamp 8 at the holes 10, and inside the clamp the pin carries a pressing ledge 12 acting as an eccentric.
  • the top end of the pin projecting above the clamp 8 has a square shank 13.
  • the locking device 9 is operated with a key (not shown) having a square hole which is fitted over the square section 13. By means of this key the pin 1 l is turned so as to cause the eccentric ledge 12 to press against the profile elements, locking these friction-tight with each other.
  • the two-piece shoring profiles fixed lengthwise by contact pressure at the joint, are thus secured in their engagement with the holes-4 in the props l.
  • steps 14, are formed by the top edges of the elements 5 and the set-back edges of the elements above, so that the shoring along both walls can be used for climbing in and out over the full length of the trench.
  • the vertical props 1 are arranged in pairs facing each other, and are braced by jacks 15 whose ends rest on the pins 7 inserted in the holes 4 of the props l and are prevented from slipping out sideways by the profile flanges thereof. Boards 16 laid along the longitudinal edges of the trench and fixed to the props I prevent soil or stones dropping in.
  • the vertical props 1 are driven in direction and depth by a rammer, as lined out, alternately excavating the trench further and driving the vertical props l deeper again.
  • the fixing pin 7 in the top edge of the second element is inserted in the hole 4 of the next vertical prop l at the desired height, making sure that the bottom pin 7' rests on the edge of the prop facing the trench wall.
  • the clamps 8 are then shifted up to about 10 cm from the inner ends of the profiles, as shown in FIG. 3.
  • the locking device 9 FIG. 5 of the two clamps 8 is turned into its locked position by means of the appropriate key so as to join the elements friction-tight over their overlapping' lengths. This joint fixes the combined length of the two shoring elements to match the spacing of the vertical props.
  • the top longitudinal edges are made to project beyond the bottom longitudinal edges so as to form steps 14 that extend the full length of both trench walls, enabling the workers to climb in and providing a means of escape in the event of danger.
  • the shoring elements are standardized, enabling space to be saved during transportation and storage on the site. Owing to their profile it is possible to keep their weight low.
  • the simple design means straightforward handling by unskilled labor when erecting and dismantling the elements. In the erected state there are no parts of the elements protruding into the trench space.
  • each of said elements comprising a pair of parallel, overlapping and relatively longitudinally shiftable members, and means for releasably securing the members of each element together at the overlapping portions thereof.
  • said means for releasably securing said members together comprises a clamp interconnecting the overlapping portions of said members, an eccentric locking device received in said clamp and a pin having a non-circular shank projecting from said clamp for operating said device.

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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)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US00170553A 1970-08-13 1971-08-10 Trench shoring, shuttering and sheeting system Expired - Lifetime US3727413A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1230570A CH514038A (de) 1970-08-13 1970-08-13 Grabenspriessung

Publications (1)

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US3727413A true US3727413A (en) 1973-04-17

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ID=4381787

Family Applications (1)

Application Number Title Priority Date Filing Date
US00170553A Expired - Lifetime US3727413A (en) 1970-08-13 1971-08-10 Trench shoring, shuttering and sheeting system

Country Status (7)

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US (1) US3727413A (Direct)
BE (1) BE771281A (Direct)
CH (1) CH514038A (Direct)
DE (1) DE2138455A1 (Direct)
FR (1) FR2104131A5 (Direct)
GB (1) GB1317089A (Direct)
NL (1) NL7111082A (Direct)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302054A (en) * 1992-09-23 1994-04-12 W. E. Winkler Hole shoring system
US5595459A (en) * 1995-10-02 1997-01-21 Lomonaco; Stenis Cofferdam for 4', 8' and 12' diameter tanks
US20040005197A1 (en) * 2000-04-05 2004-01-08 Maksim Kadiu Shoring device
US20040170478A1 (en) * 2000-04-05 2004-09-02 Max Kadiu Shoring system
US20050074300A1 (en) * 2003-10-03 2005-04-07 Max Kadiu Trench shoring device
US6907957B1 (en) * 2002-06-25 2005-06-21 Arthur Allen Couch Trench shield ladder
US20080229702A1 (en) * 2006-08-04 2008-09-25 Davidson Equipment Leasing Lllp Trench box safety ladder
US20220275595A1 (en) * 2019-07-12 2022-09-01 Secure Ground Solutions Ltd Trench shoring apparatus
CN116335161A (zh) * 2023-04-27 2023-06-27 中国水利水电第七工程局有限公司 一种管道沟槽反坡开挖支护装置及其施工方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333901A1 (fr) * 1975-12-01 1977-07-01 Koehl Jean Blindage de tranchee telescopique a etages multiples
NL8002788A (nl) * 1980-05-14 1981-12-16 Maascom Bv Werkwijze en inrichting voor damwandbekleding.
DE3341483A1 (de) * 1983-11-17 1985-05-30 Emunds & Staudinger GmbH & Co KG, 5142 Hückelhoven Verbauvorrichtung
EP0689629A1 (de) * 1993-03-18 1996-01-03 KVH Verbautechnik GmbH Verbauplatte
DE102004004321B4 (de) * 2004-01-28 2007-02-15 FITR-Gesellschaft für Innovation im Tief- und Rohrleitungsbau Weimar mbH Struktur-Stabilisierungsplatte zur Sicherung von Graben- oder Baugrubenwänden durch Verbau nach Aushub des Erdstoffes mittels Grabenbaugerät und Verfahren hierfür
DE102009042356B4 (de) * 2009-09-23 2012-04-26 Manfred Passler Verbauplatte, Verbauplatteneinheit und Verbauplattensatz

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US841773A (en) * 1906-03-15 1907-01-22 Albert W Fitzgerald Trench-sheeting.
US3186177A (en) * 1962-03-01 1965-06-01 August J Kannenberg Safety device for excavations
US3230720A (en) * 1960-05-02 1966-01-25 Sigma Engineering Corp Trench shoring device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US841773A (en) * 1906-03-15 1907-01-22 Albert W Fitzgerald Trench-sheeting.
US3230720A (en) * 1960-05-02 1966-01-25 Sigma Engineering Corp Trench shoring device
US3186177A (en) * 1962-03-01 1965-06-01 August J Kannenberg Safety device for excavations

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5302054A (en) * 1992-09-23 1994-04-12 W. E. Winkler Hole shoring system
US5595459A (en) * 1995-10-02 1997-01-21 Lomonaco; Stenis Cofferdam for 4', 8' and 12' diameter tanks
US7309191B2 (en) 2000-04-05 2007-12-18 Max Kadiu Shoring system
US20040170478A1 (en) * 2000-04-05 2004-09-02 Max Kadiu Shoring system
US6821057B1 (en) 2000-04-05 2004-11-23 Maksim Kadiu Magnetic shoring device
US7048471B2 (en) 2000-04-05 2006-05-23 Maksim Kadiu Shoring device
US20040005197A1 (en) * 2000-04-05 2004-01-08 Maksim Kadiu Shoring device
US6907957B1 (en) * 2002-06-25 2005-06-21 Arthur Allen Couch Trench shield ladder
US20050074300A1 (en) * 2003-10-03 2005-04-07 Max Kadiu Trench shoring device
US7056067B2 (en) 2003-10-03 2006-06-06 Max Kadiu Trench shoring device
US20080229702A1 (en) * 2006-08-04 2008-09-25 Davidson Equipment Leasing Lllp Trench box safety ladder
US7530767B2 (en) 2006-08-04 2009-05-12 Davidson Equipment Leasing Lllp Trench box safety ladder
US20220275595A1 (en) * 2019-07-12 2022-09-01 Secure Ground Solutions Ltd Trench shoring apparatus
US12054904B2 (en) * 2019-07-12 2024-08-06 Security Ground Solutions Ltd. Trench shoring apparatus
CN116335161A (zh) * 2023-04-27 2023-06-27 中国水利水电第七工程局有限公司 一种管道沟槽反坡开挖支护装置及其施工方法

Also Published As

Publication number Publication date
GB1317089A (en) 1973-05-16
NL7111082A (Direct) 1972-02-15
FR2104131A5 (Direct) 1972-04-14
CH514038A (de) 1971-10-15
BE771281A (fr) 1971-12-16
DE2138455A1 (de) 1972-02-17

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