CA2126377A1 - Method for forming a cellular structure for containing loose material to stabilize and reinforce soils - Google Patents

Method for forming a cellular structure for containing loose material to stabilize and reinforce soils

Info

Publication number
CA2126377A1
CA2126377A1 CA002126377A CA2126377A CA2126377A1 CA 2126377 A1 CA2126377 A1 CA 2126377A1 CA 002126377 A CA002126377 A CA 002126377A CA 2126377 A CA2126377 A CA 2126377A CA 2126377 A1 CA2126377 A1 CA 2126377A1
Authority
CA
Canada
Prior art keywords
nets
joining element
cellular structure
constituted
joining
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.)
Abandoned
Application number
CA002126377A
Other languages
French (fr)
Inventor
Mario Beretta
Filippo Montanelli
Augusto Bazzocchi
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.)
RDB Plastotecnica SpA
Original Assignee
RDB Plastotecnica SpA
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 RDB Plastotecnica SpA filed Critical RDB Plastotecnica SpA
Publication of CA2126377A1 publication Critical patent/CA2126377A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00Excavations; Bordering of excavations; Making embankments
    • E02D17/20Securing of slopes or inclines
    • E02D17/202Securing of slopes or inclines with flexible securing means
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/02Retaining or protecting walls
    • E02D29/0208Gabions

Landscapes

  • 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)
  • Environmental & Geological Engineering (AREA)
  • Fencing (AREA)
  • Revetment (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE
Method for forming a cellular structure for containing loose material to stabilize and reinforce soils which consists in arranging side by side at least one portion of at least two nets; in arranging a joining element where the nets are adjacent, inserting it from the outer face of one of the nets and making it exit from the outer face of the furthest adjacent net; in connecting at least one locking element, which can engage the outer faces and the joining element, to the portions of the joining element that exit from the outer faces; and in mutually connecting the nets in multiple spaced points to form multiple cells that are peripherally delimited by the nets.

Description

The present invention relates to a method for forming a cellular structure for containing loose material to stabilize and reinforce soils.
As it is known, cellular structures for containing 5 loose materials to stabilize and reinforce soils, commonly termed "geocells", are formed by means of nets that are mutually joined so as to form closed spaces in which loose materials, such as gravel and the like, are introduced.
For example, patent GB 2,078,833 discloses a structure 10 in which the joint is provided by means of a system known in the art as "bodkin". This type of joint has considerable drawbacks in terms of application, since, in order to provide it, one has to fold along the joining line one of the two nets to be joined and insert the portion of the 15 folded net in the loops of the second net, causing it to exit from the other side and making an iron rod pass in the space that is thus formed, for providing connection between the two nets.
This type of joint is scarcely practical and scarcely 20 versatile, since it becomes difficult to use in on-site applications if it is necessary to join materials difficult to fold, such as for example metal materials.
Other known methods, such as for example the one disclosed in patent US 4,394,924, provide for the forming 25 of cells constituted by cube-liXe or parallelepipedal gabions in which considerable problems are encountered in providing the joints at the closing edges, which are obtained by interweaving metal wires.

3 ~ ~ ~

A principal aim of the invention is to solve the above described problems by providing a method for forming a cellular structure for containing loose material to stabilize and reinforce soils, in which it is possible to 5 quickly join the nets without having to mutually interpenetrate them, but simply by using elements that require the mutually adjacent arrangement of the nets.
A particular object of the invention is to provide a cellular structure that can be obtained with nets of any 10 type and particularly with plastic nets having single or double orientation or no orientation at all, or metal nets having an appropriate pattern, such as preferably a pattern with a substantially square or rectangular mesh.
Another object of the present invention is to provide : ~.
15 a method that allows to obtain a very wide range of cell shape types according to the particular kind of application.
A further object of the present invention is to provide a method that allows to couple multiple mutually 20 superimposed nets, thus obtaining a considerable variety of structural shapes for the geocells.
With this aim, the objects mentioned and others which will become apparent hereinafter in view, there is provided, according to the invention, a method for forming 25 a cellular structure for containing loose material to stabilize and reinforce soils, which i5 characterized in that it consists in arranging side by side at least one portion of at least two nets; in arranging a joining element where the nets are adjacent, lnserting it from the h~ 6 e~ 7 7 ~ outer face of one of said nets and making it exit from the outer face of the furthest adjacent net; in connecting at least one locking element, which can engage said outer faces and said joining element, to the portions of said 5 joining element that exit from said outer faces; and in mutually connecting said nets in multiple spaced points to form multiple cells that are peripherally delimited by said nets.

Further characteristics and advantages of the method 10 for forming a cellular structure will become apparent from the following detailed description of some preferred but not exclusive embodiments thereof, illustrated only by way of non-limitative example in the accompanying drawings, wherein:
figures 1, 2 and 3 illustrate plan sectional views of some of the possible configurations that can be assumed by the cellular structure formed by the method of the present invention;
figure 4 is a view of a spiral-shaped joining element;
figure 5 is a view of a joining element with interconnected rings;
figure 6 is a view of a joining element with independent rings;
figures 7 to 11 illustrate respectively: the step in 25 which the nets are arranged mutually adjacent; the step for inserting the joining element; the step for locking the joining element; and the step for positioning the locked net and the optional application of a second locking element;

~ 4 ~ 3 7 7 figure 12 is a perspective view of two nets joined by a ~piral-shaped joining element with a locking element;
figure 13 is a view of two nets joined by a spiral~
shaped joining element with two locking elements;
figure 14 shows, in a perspective view, the joining of two nets by means of a junction with independent rings;
figure 15 is a top plan view of the solution of figure 14; ~ .
figure 16 illustrates, in a plan view, the mutually -:
lo adjacent arrangement of two folded nets with a spiral-shaped joining element applied by screw-like insertion;
figure 17 illustrates the screw-like insertion of the spiral-shaped element; :
figure 18 is a plan view of the spiral-shaped element 15 applied by screw-like insertion; and .
figure 19 is a perspective view of two nets joined by a spiral-shaped joining element applied by screw-like insertion. ~:
:: , With reference to the above figures, the method for 20 forming a cellular structure for containing loose material :
to stabilize and reinforce soils, according to the invention, consists in arranging side by side two or more nets, respectively designated by the reference numerals 1, 2 and 3, in the case of the mutually adjacent arrangement 25 of three nets, in at least one region, preferably arranging the nets so that the meshes are distributed in a matching arrangement.
The overlap can be provided by fully superimposing the two nets or simply by superimposing them in some preset ~2~7 regions.
Once the overlap has been performed, a joining element, which can be variously formed, is applied in the selected joining regions.
As shown in figure 4, it is possible to provide a joining element which is constituted by a spiral 10 or, optionally, as illustrated in figure 5, by a joining ..
element 20 with rings 21 that are joined by a vertical bar 22.
::
lo According to a different embodiment, it is possible to use independent rings 30 according to methods that will be described in detail hereinafter.
In practical use, after arranging the nets side by side, a joining element, constituted either by the spiral 15 10 or by the joining element 20, is inserted from the outer face of one of the nets until it exits from the outer face of the furthest adjacent net.
In this manner, the joining element, the axial length whereof is preferably equal to the height of the nets, 20 engages the outer face of the net from which said joining element is inserted.
Once the joining element has been inserted, a locking element, constituted by a locking bar 40, is applied and inserted either in the turns of the spiral 10 or in the 25 interconnected rings 21 protruding from the outer face of the furthest net.
In this manner, the locking element is in practice retained between the outer face of the net and the part of the joining element that protrudes therefrom.
Optionally, as illustrated for example in figure 11, 6 ~ ?~ 7 7 it is possible to apply a second locking element between the outer face of the net through which the joining element has been inserted and the joining element itself, thus forming an additional reinforcement element.
Use of two locking elements is instead necessary if the independent rings 30 are used, as shown schematically in figures 14 and 15, where there are two locking bars 40 that are arranged substantially parallel to each other and are optionally obtained by bending an iron rod 50 so that 10 it becomes U-shaped.
In this solution it is possible to use independent joining rings, designated by the reference numerals 30a and 30b, which are arranged above and below, and optionally an intermediate independent joining ring 30c, and it is also 15 possible to place only two independent rings arranged above and below the regions affected by the nets, since the purpose is to form a joining and stiffening element in the placement of the two locking bars.
According to a different embodiment which is 20 conceptually linked to the preceding ones, it is also possible to use the spiral-shaped element 10 by screwing it between the two nets 1 and 2, which are advantageously arranged side by side in a limited region, as illustrated in figures 16 and 17, and by screwing the spiral-shaped 25 joining element so that its various turns in practice surround and engage the horizontal portions of the meshes of the two nets, thus forming the joint directly without necessarily having to apply the locking bar, since the joining element itself provides the locking action.
It is fundamentally important for all the above 7 2 ~ 7 described solutions that the nets are joined without providing a preliminary interpenetration of the nets, consequently allowing to considerably simplify all the coupling steps and allowing to produce the most disparate 5 structural configurations, since it is possible to mutually overlap more than two nets, thus obtaining, in the forming of the cells, the most suitabla arrangement ~or the particular type of reinforcement to be provided.
To the above, for the sake of completeness in 10 description, it should be added that the pitch of the turns of the element 10, as well as the mutual distance between the interconnected rings 21 of the joining element 20, must be equal to, or in any case a submultiple of, the pitch of the meshes, thus allowing very easy insertion, since once 15 the nets are overlapped there are no obstacles to the insertion of the joining element from one net toward the other net, allowing easy exit for consequent locking.
Since the turns have a pitch matching the spacing of the meshes, an equally simple installation is obtained if 20 the joining element is applied by screwing.
The invention thus conceived is susceptible to numerous modifications and variations, all of which are within the scope of the inventive concept.
All the details may furthermore be replaced with other 25 technically equivalent elements.
In practice, the materials employed, as well as the contingent shapes and dimensions, may be any according to the requirements.

Claims (16)

1. Method for forming a cellular structure for containing loose material to stabilize and reinforce soils, comprising the steps of: arranging side by side at least one portion of at least two nets; arranging a joining element where the nets are adjacent, inserting the joining element from the outer face of one of said nets and making it exit from the outer face of the furthest adjacent net;
connecting at least one locking element, which can engage said outer faces and said joining element to prevent extraction of said element, to the portions of said joining element that exit from said outer faces; and mutually connecting said nets in multiple spaced points to form multiple cells that are peripherally delimited by said nets.
2. Method for forming a cellular structure for containing loose material to stabilize and reinforce soils, comprising the steps of: arranging side by side at least one portion of at least two nets; and arranging a joining element where the nets are adjacent, and screwing it along an axis that lies parallel to the plane of arrangement of said nets, thereby engaging the turns of the joining element alternately with the outer face of one net and with the outer face of the furthest adjacent net.
3. Method according to claim 1, wherein said joining element substantially affects the entire height of said nets.
4. Method according to claim 1, wherein said joining element is constituted by a spiral-shaped element.
5. Method according to claim 1, wherein said joining element is constituted by a bar with interconnected rings that has a plurality of mutually spaced rings connected by a connecting bar.
6. Method according to claim 4, wherein the turns of said spiral-shaped joining element have a pitch that is substantially equal to, or a submultiple of, the spacing of the meshes of said nets.
7. Method according to claim 5, wherein the mutual distance of said interconnected rings is substantially equal to, or a submultiple of, the spacing of the meshes of the nets.
8. Method according to claim 1, wherein said joining element comprises independent rings that can be coupled to the outer faces of said nets by means of locking elements which are connected at the outer insertion face and at the outer exit face.
9. Method according to claim 8, wherein said locking element is constituted by a locking bar that can be inserted between said outer face and said joining element.
10. Method according to claim 9, wherein said locking element is provided at the outer insertion face and at the outer exit face of the joining element.
11. Method according to claim 9, wherein said locking element is constituted by a U-shaped bar.
12. Cellular structure for containing loose material, comprising at least two nets which are arranged side by side in at least one portion, whereat a joining element is provided, said joining element being inserted from the outer face of one of said nets and exiting from the outer face of the furthest adjacent net, at least one locking element being furthermore provided between the outer face of the net and said joining element.
13. Cellular structure according to claim 12, wherein said joining element is constituted by a spiral-shaped element.
14. Cellular structure according to claim 12, wherein said joining element is constituted by a bar from which multiple spaced rings extend.
15. Cellular structure according to claim 12, wherein said joining element is constituted by independent rings that protrude with respect to the outer faces of the mutually adjacent nets.
16. Cellular structure according to claim 12, wherein said locking element is constituted by a locking bar which is inserted between said joining element and the outer face of said nets.
CA002126377A 1993-06-22 1994-06-21 Method for forming a cellular structure for containing loose material to stabilize and reinforce soils Abandoned CA2126377A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT93MI001347A IT1264876B1 (en) 1993-06-22 1993-06-22 PROCEDURE FOR THE CREATION OF A CELL STRUCTURE FOR THE CONTAINMENT OF INCOHERENT MATERIAL FOR STABILIZATION AND
ITMI93A001347 1993-06-22

Publications (1)

Publication Number Publication Date
CA2126377A1 true CA2126377A1 (en) 1994-12-23

Family

ID=11366454

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002126377A Abandoned CA2126377A1 (en) 1993-06-22 1994-06-21 Method for forming a cellular structure for containing loose material to stabilize and reinforce soils

Country Status (3)

Country Link
CA (1) CA2126377A1 (en)
GB (1) GB2279388B (en)
IT (1) IT1264876B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9900363D0 (en) * 1999-01-08 1999-02-24 Hesco Bastion Ltd Improvements relating to cage structures
US20050117978A1 (en) * 2001-12-12 2005-06-02 Trevor Loffel Cellular honeycomb type reinforcing structure, and a method and apparatus for forming the structure
EP1589151A3 (en) * 2004-04-21 2006-06-07 Wolfgang Deutschle Skeleton construction for the installation of walls for protection against sound, wind etc.
DE102006041880A1 (en) * 2006-09-06 2008-03-27 Stoll, Johann Stone basket element for erecting retaining walls or the like
ES2352582T3 (en) * 2008-06-20 2011-02-21 Betafence Holding Nv GAVIÓN
EP2479347A1 (en) * 2009-09-15 2012-07-25 Grupo Leon Lebrero División Geotécnica, S.L. Gabion for all types of natural stone and waste
GB201608467D0 (en) * 2016-05-13 2016-06-29 Zaun Ltd Security barrier assemblies
GB2584460B (en) * 2019-06-04 2022-08-10 Guardiar Europe Security fencing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2078833B (en) * 1980-06-25 1983-11-23 Plg Res Retaining fill in a geotechnical structure

Also Published As

Publication number Publication date
GB2279388B (en) 1996-12-11
IT1264876B1 (en) 1996-10-17
GB9412462D0 (en) 1994-08-10
ITMI931347A0 (en) 1993-06-22
ITMI931347A1 (en) 1994-12-22
GB2279388A (en) 1995-01-04

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Legal Events

Date Code Title Description
FZDE Discontinued