EP1600563A2 - Système de mur de retenue segmenté avec languette divisée - Google Patents

Système de mur de retenue segmenté avec languette divisée Download PDF

Info

Publication number
EP1600563A2
EP1600563A2 EP05076174A EP05076174A EP1600563A2 EP 1600563 A2 EP1600563 A2 EP 1600563A2 EP 05076174 A EP05076174 A EP 05076174A EP 05076174 A EP05076174 A EP 05076174A EP 1600563 A2 EP1600563 A2 EP 1600563A2
Authority
EP
European Patent Office
Prior art keywords
tongue
block
groove
splitting
srw
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Withdrawn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
EP05076174A
Other languages
German (de)
English (en)
Other versions
EP1600563A3 (fr
Inventor
Angelo Risi
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.)
Jagna Ltd
Original Assignee
Jagna Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33426248&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1600563(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Jagna Ltd filed Critical Jagna Ltd
Publication of EP1600563A2 publication Critical patent/EP1600563A2/fr
Publication of EP1600563A3 publication Critical patent/EP1600563A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/02—Retaining or protecting walls
    • E02D29/025—Retaining or protecting walls made up of similar modular elements stacked without mortar
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
    • E04C1/395—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra for claustra, fences, planting walls, e.g. sound-absorbing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0204—Non-undercut connections, e.g. tongue and groove connections
    • E04B2002/0208—Non-undercut connections, e.g. tongue and groove connections of trapezoidal shape

Definitions

  • the present invention relates to an improved segmental retaining wall system.
  • each stackable block also called “units”, “SRW units” or “SRW blocks” hereinafter
  • SRW blocks each stackable block
  • Segmental earth retaining walls are a category of earth retention system that utilize modular, dry stacked (no mortar), preliminary-cast concrete blocks to create a stable mass with sufficient weight to resist earth pressures developed by the adjacent soil.
  • SRW blocks with such an offset tongue and groove system to create a batter or setback to the wall are commonly used, it remains that in design situations, a vertical wall (vs. a setback wall) is more desirable, and therefore, the use of the SRW unit in its current configuration (battered only) is limited.
  • the following two examples are illustrative of these situations.
  • a stairway cut into an existing bank often requires retaining walls on either side to support the earth cut. If battered retaining walls are constructed on either side of the steps, the distance between the two walls increases as the steps ascend (see Figure 12). This is due to the fact that with each step up, the wall offsets further back. As the two walls are facing each other, the total width of the stairs increases by an amount equal to twice the setback of the wall. With vertical sidewalls, the stair width is maintained throughout the entire flight (see Figure 13).
  • the space at the top of the wall is limited, either due to property lines, other structures, or simply a desire to maximize the usable land above the wall.
  • the wall With a battered structure, the wall requires greater horizontal distance at the top.
  • the batter or setback of the wall is always "automatically” achieved, resulting in a wall that may be engineered and constructed with a known vertical alignment.
  • the degree of batter or setback in a wall is a critical element in the design with respect to the analysis and engineering performance of the wall, geometric alignment, and aesthetic look.
  • the batter of the wall is calculated, in degrees, as the inverse Tan -1 (X/Y)..
  • a problem with this kind of SRW system is that depending on the kind of wall to be erected and the kind of inclination to be given to it, the modular, segmental retaining wall blocks may substantially vary in shape and size.
  • the moulds for such blocks are precision manufactured from high strength steel and are designed to withstand high stresses during the manufacturing process. As such, each mould is relatively expensive and may only last for a specific length of time or number of manufacturing cycles. In order to limit the costs associates with manufacturing a particular SRW system, the intention is therefore to keep the number of components and therefore moulds, to a minimum.
  • each SRW block allows the user to construct vertical and battered walls with the same blocks, thereby eliminating the need for additional blocks and the costs and complexity discussed above.
  • the present invention is directed to an improved segmental retaining wall (SRW) block for use to construct a segmental earth retaining wall.
  • SRW segmental retaining wall
  • the improved block according to the invention has:
  • the improvement lies in that the tongue is provided with a splitting groove sized and positioned to allow splitting of the tongue with a splitting tool along a transversal line that is positioned to permit the remaining portion of the tongue to fit into the groove of a further similar block stacked on top of the present block with the front side of this further similar block extending in a same vertical plane as the first side of the present block.
  • the splitting groove extends at an angle of preferably about 30° to guide the splitting tool at this angle so as to impart a horizontal impact force to the portion of the tongue to be splitted and thus facilitate such a splitting.
  • the splitting groove has a bottom provided with a weak point preferably in the form of a 90° corner. This weak point is located at the place where the splitting tool hits the bottom edge.
  • the bottom of the splitting groove extends below the top side of the block, thereby allowing formation of a recess when the tongue is splitted.
  • the SRW block 1 has:
  • first and second distances D1 and D2 are selected so that the tongue 7 and the groove 11 are offset with respect to each other over a distance that is smaller than the width of the tongue 7.
  • the tongue 7 is provided with a splitting groove 13 sized and positioned to allow splitting of the tongue 7 with a splitting tool along a transversal line that is positioned to permit the remaining portion of this tongue to fit into the groove of a further similar block stacked on top of the present block with the front side of this further similar block extending in a same vertical plane as the first side of the present block (see Figures 9 and 11).
  • the present invention essentially lies in the incorporation of the above mentioned splitting groove into a conventional SWR block provided with a tongue and groove system.
  • the incorporation of such a splitting groove allows the units to be stacked in both battered and vertical alignments.
  • the splitting tongue within the tongue of the SRW block allows the user to easily and clearly remove a portion of the tongue, thereby allowing the blocks to be pushed forward to achieve a vertical alignment (see Figures 3 to 7b).
  • the splitting grooves gives the user the ability to stack the wall at the predetermined setback (see Figures 8 and 10) or remove a portion of the tongue and stack the wall vertically (see Figures 9 and 11).
  • the present invention provides a means to increase the versatility of a SRW system and therefore expands the use of the blocks.
  • segmental retaining walls are used as sidewalls to a set of steps
  • the normal setback of the walls creates a widening effect in the stairway as it ascends.
  • this widening effect can interfere with the architectural alignment of the stairway and/or other structures, the use of vertical sidewalls is often necessary. Such may now be built up with the same blocks.
  • the split key tongue of the SRW block according to the invention has a number of specific design elements which allow the user to stack the units in a vertical alignment easily, without compromising the structural integrity of the unit or the contact area between the blocks.
  • the first design element specific to the split key tongue lies in the dimensions of split-off portion of the tongue (see Figure 4).
  • the width of the mass removed, including the existing groove must equal the offset of the block. This width must actually be equal to the X dimension shown in Figures 1 and 1 b.
  • a second of the design element specific to the split key tongue is that the splitting groove extends at an angle, viz. is sloped.
  • Such a sloped splitting groove is designed to guide the splitting tool (usually a steel chisel) at an angle that is approximately 30 degrees below vertical.
  • the splitting tool usually a steel chisel
  • Fc impact force of the chisel
  • Fh horizontal force
  • a third design element specific to the split key tongue lies in the presence of predetermined weak point A at a very specific location (see Figure 6).
  • the 90 degrees corner at point A is a natural weak point in the groove.
  • the concrete is forced into tension (Ft) in reaction to the clockwise moment generates.
  • the material reacts with a counter clockwise tension force.
  • this force creates a tension crack from point A to point B.
  • a fourth and last design element specific to the split key tongue lies in that the splitting groove is recessed (see Figures 7a and 7b).
  • the contact surface between them must be perfectly level and free of debris.
  • point A has been recessed.
  • the splitting plane propagates upward toward the surface of the block.
  • the split is limited to the surface of the block due to the fact that point B is another natural weak point.
  • the resulting split is therefore kept below the top of the block and a clear contact area is maintained.
  • the tension crack is controlled between the two predetermined entry (A) and exit (B) points, allowing the split off portion to be removed cleanly.
  • every additional component in a SRW system generates significant costs with respect to the initial mould purchase, changing moulds during manufacturing, inventory costs, and costs due to overall system complexity (education, contractor familiarity).
  • the incorporation of the splitting groove according to the invention advantageously allows the same block to be used in both battered and vertical applications. Thus, such incorporation increases the versatility of the system while limiting costs due to additional moulds, inventory, etc.
  • the tongue and groove extends over the full width of the SRW block.
  • the tongue and even the groove could be shorter in width, the only requirement being that there is always a possibility to stack rows of blocks with the blocks of each row not necessarily vertically in line with the blocks of the adjacent rows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Retaining Walls (AREA)
  • Revetment (AREA)
EP05076174A 2004-05-28 2005-05-19 Système de mur de retenue segmenté avec languette divisée Withdrawn EP1600563A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2469128 2004-05-28
CA002469128A CA2469128C (fr) 2004-05-28 2004-05-28 Systeme de mur de soutenement a rainures et languettes alternees

Publications (2)

Publication Number Publication Date
EP1600563A2 true EP1600563A2 (fr) 2005-11-30
EP1600563A3 EP1600563A3 (fr) 2009-05-13

Family

ID=33426248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05076174A Withdrawn EP1600563A3 (fr) 2004-05-28 2005-05-19 Système de mur de retenue segmenté avec languette divisée

Country Status (2)

Country Link
EP (1) EP1600563A3 (fr)
CA (1) CA2469128C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD844857S1 (en) 2017-10-05 2019-04-02 Western Interlock, Inc. Retaining wall corner block
USD867620S1 (en) 2017-10-05 2019-11-19 Western Interlock, Inc. Retaining wall block
US10532488B2 (en) 2018-02-22 2020-01-14 Western Interlock, Inc. Method and mold for retaining wall corner and column blocks

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2782659C (fr) 2012-06-26 2019-01-08 Brampton Brick Limited Systeme et bloc de mur de soutenement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490075A (en) 1982-08-16 1984-12-25 Angelo Risi Retaining wall system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8428191D0 (en) * 1984-11-08 1984-12-19 Crighton J W Building blocks
GB9226143D0 (en) * 1992-12-15 1993-02-10 Martin Christopher Method of connecting geogrids to retaining walls or boundary structures
US5816749A (en) * 1996-09-19 1998-10-06 The Tensar Corporation Modular block retaining wall system
FR2812893B1 (fr) * 2000-08-08 2003-01-31 Freyssinet Int Stup Paroi de parement d'un ouvrage de soutenement renforce et bloc d'attache d'une armature pour ladite paroi
US7059808B2 (en) * 2004-05-28 2006-06-13 Jagna Ltd. Split key segmental retaining wall system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4490075A (en) 1982-08-16 1984-12-25 Angelo Risi Retaining wall system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD844857S1 (en) 2017-10-05 2019-04-02 Western Interlock, Inc. Retaining wall corner block
USD867620S1 (en) 2017-10-05 2019-11-19 Western Interlock, Inc. Retaining wall block
USD900341S1 (en) 2017-10-05 2020-10-27 Western Interlock, Inc. Retaining wall block
US10532488B2 (en) 2018-02-22 2020-01-14 Western Interlock, Inc. Method and mold for retaining wall corner and column blocks

Also Published As

Publication number Publication date
EP1600563A3 (fr) 2009-05-13
CA2469128C (fr) 2005-10-11
CA2469128A1 (fr) 2004-11-12

Similar Documents

Publication Publication Date Title
US7059808B2 (en) Split key segmental retaining wall system
EP0171417B1 (fr) Module structural pour murs de soutenement et analogues
US6488448B1 (en) Block module
US5688078A (en) Interlocking retaining walls blocks and system
US6082933A (en) Concrete block
US20090113836A1 (en) Building Block
EP2758604B1 (fr) Système d'une mur
US20060000179A1 (en) Building block
US7096635B2 (en) Multiuse block and retaining wall
US7367167B2 (en) Block
EP1600563A2 (fr) Système de mur de retenue segmenté avec languette divisée
US7351015B2 (en) Invertible retaining wall block
US20080244995A1 (en) Wall Assembly
CA2574694C (fr) Dispositif de raccordement double
US11208805B1 (en) Modular wall block, interlocking block assembly, and retaining wall constructed of an assembly of modular wall blocks
US20080053030A1 (en) Asymmetric retaining wall block
US20040159065A1 (en) Retaining wall block
WO2005068746A1 (fr) Lame de parquet
US8734060B1 (en) Double-wall structure comprised of interconnected dry-stacked wall blocks
CN108487264B (zh) 一种护坡砖及挡土墙垒砌方法
US20060096180A1 (en) Retaining wall block and grid system
AU782613B2 (en) Retaining wall block
JP4819783B2 (ja) 木製小幅厚板を備えた耐火・耐震壁およびその構築方法
AU5193001A (en) A rail device for bricks
JP2927779B1 (ja) のし積み棟工法と、のし積みの棟構造、及びのし瓦

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

17P Request for examination filed

Effective date: 20091023

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20110412

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20111024