EP0608036B1 - Matelas composé de blocs pour la protection de talus, bermes et similaires - Google Patents

Matelas composé de blocs pour la protection de talus, bermes et similaires Download PDF

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Publication number
EP0608036B1
EP0608036B1 EP19940200133 EP94200133A EP0608036B1 EP 0608036 B1 EP0608036 B1 EP 0608036B1 EP 19940200133 EP19940200133 EP 19940200133 EP 94200133 A EP94200133 A EP 94200133A EP 0608036 B1 EP0608036 B1 EP 0608036B1
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EP
European Patent Office
Prior art keywords
blocks
block
fabric ply
mattress according
block mattress
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 - Lifetime
Application number
EP19940200133
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German (de)
English (en)
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EP0608036A1 (fr
Inventor
Hendrik Voogt
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
    • E02B3/123—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of stone, concrete or similar stony material

Definitions

  • This invention relates to a block mattress for the protection of slopes, berms, and the like, comprising a water-permeable fabric ply having attached thereto a number of blocks of a relatively heavy and hard material, such as concrete, said blocks being arranged on both sides of the fabric ply, such that each block on one side of the fabric ply is located opposite a block on the other side of the fabric ply.
  • Block mattresses of the above-mentioned type as known from DE-A-1813450,are laid on an underground to be protected or reinforced, in particular an underground subject to erosion through water hammer.
  • the fabric ply is permeable to water, but prevents soil located under the fabric ply from washing away.
  • a large number of blocks are arranged on the fabric ply, disposed so as to be more or less in abutment with each other.
  • the blocks are provided with continuous openings, which may or may not be filled with soils.
  • the blocks can be attached to the fabric ply by glue, nails, clamps, staples or a thread or wire surrounding the blocks and being laced through the fabric ply. All these methods are complicated and time-consuming as separated means are needed as well as additional treatments being especially complicated when two opposing blocks are to be attached to be fabric ply.
  • the object of the present invention is to improve the fabrication of such a block mattress as well as to obtain a better protection and reinforcement of the underground, while the guarantee that the block mattress remains in position is increased.
  • this is realized in a block mattress of the above mentioned type in that two blocks located opposite each other relative to the fabric ply are interconnected by means of a coupling part receding on all sides relative to the adjoining faces of the blocks and extending through the fabric ply.
  • each block on the bottom side of the block mattress is independently supported on the underground and each block at the top side by a counter block at the bottom side, which relieves the fabric ply of the weight of the blocks with the result that special anchorage cables and fastening means at the top edge of the block mattress can nearly always be omitted.
  • the number of blocks on the top and bottom sides of the fabric ply may be mutually different and vary depending on the intended use of the block mattress. For instance, in the case of a relatively dense underground, a smaller number of blocks may be provided on the bottom side of the fabric ply than on the top side, while in the case of a soft underground or hardly any wave action, if at all, more blocks may be present on the bottom side than on the top side of the fabric ply.
  • Interconnecting the blocks and the fabric ply is achieved by connecting a block on one side of the fabric ply to counter block located on the other side by a coupling part extending through the fabric ply. This can be done by passing a coupling part through the fabric ply and attaching or moulding two blocks to said coupling part, or by manufacturing a unit of a block and a coupling part and attaching or moulding a second block to the coupling part after passing thereof through the fabric ply, or by manufacturing a unit of two blocks connected by a coupling part and temporarily widening an opening in the fabric ply for passing one of the blocks.
  • This embodiment with block and counter block is also advantageous when a lower block is pressed into an underground in view of the smaller chance of damage to the fabric ply then involved, in particular in the case of a relatively hard underground because the lower block supports the opposite upper block, thus avoiding stresses in and damage to the fabric ply.
  • the same number of blocks can be present on both sides of the fabric ply, although it is also possible that one block on one side is located opposite two or more blocks on the other side of the fabric ply, because in the present invention it is possible to adapt the shape and dimensions of a block optimally to the circumstances to be considered on that side of the fabric ply where the block in question is located.
  • the coupling part is a pin, for instance manufactured from synthetic material and having lateral pro-trusions ensuring a reliable connection with a block, pre-fabricated or manufactured round the pin.
  • the coupling part consists of a constricted center portion, forming one piece with the two blocks.
  • the fabric ply can be designed so that it can be widened locally for a block to be passed through, which widening is no longer possible if that block is surrounded by other blocks.
  • the blocks are solid and are arranged in such a pattern that open spaces are present between the blocks.
  • the natural vegetation of the block mattress can be considerably promoted, particularly if, in top plan view, the blocks have such a contour that in a pattern wherein all blocks are in mutual contact, only a point contact or relatively short line contact is established between two blocks, so that relatively large open spaces remain present between the blocks. Due to the point contact or relatively short line contact, the open spaces virtually communicate with each other, unlike blocks that practically abut against each other, having local holes or interruptions entirely surrounded by portions of the block.
  • the plants rooting in the open spaces may form an intertwined root network and hence grow together more luxuriantly and with a better resistance to being washed away than in the case of isolated clumps of plants.
  • the blocks on the bottom side of the fabric ply have a shape tapering off from that ply, while it is particularly preferred that the blocks have the shape of a truncated cone or pyramid.
  • the blocks on the top of the fabric ply have a rounded or otherwise hydraulically adapted, i.e. a wave-breaking or wave-braking shape. If much open space between the blocks is considered desirable for promoting plant vegetation, hemispherical blocks are preferred.
  • a block mattress is used with blocks on either side of the fabric ply, which blocks have a shape receding from the fabric ply, a block mattress is obtained which is flexible on all sides, i.e., a block mattress capable of bending from the plane in all directions and hence of adapting itself optimally to the profile of the underground without involving danger of damage to the fabric ply as a consequence of blocks on the bottom side of the fabric ply being unable to find sufficient support, if at all, at the location of holes and the like.
  • hemispherical blocks are preferred.
  • a relatively dense stacking can nevertheless be obtained if, in accordance with a further embodiment of the invention, the blocks on one side of the fabric ply, touching each other, are arranged in a checkered pattern.
  • Such pattern has the further advantage that if the blocks under and above the fabric ply have the same pattern, two or more block mattresses can be laid on top of each other, allowing the blocks under the fabric ply of the superjacent mattress to engage, more or less nestingly, in the spaces between the blocks on the fabric ply of the subjacent mattress.
  • a better i.e. a more closed pattern is obtained if the blocks on one side of the fabric ply, touching each other, are arranged in a honeycomb pattern, which even permits a practically entirely closed pattern to be obtained if the blocks have the shape of a truncated pyramid with a rectangular base.
  • Such an embodiment of the block mattress may also be preferred if the mattress should be capable of taking up a higher load, for instance the weight of a vehicle driving over it.
  • a block mattress with the blocks partly in an entirely or almost entirely closed pattern, for instance a portion of the mattress exposed to wave action, and partly in a relatively open pattern, for instance a portion of the mattress not subject to wave action.
  • the block mattress shown in top plan view in Fig. 1 comprises a water-permeable fabric ply 1, for instance manufactured from synthetic fibers or strips, there being provided on the top side of the fabric ply a large number of hemispherical blocks 2 and on the bottom side, as shown in Figs 2 and 3, a large number of blocks 3 having the shape of a truncated cone whose base is placed against the fabric ply 1.
  • the faces of the blocks 2 and 3 facing each other have an identical surface, the same number of blocks having been provided of both types of blocks in a checkered pattern on both sides of the mattress.
  • the identical faces of the blocks 2 and 3 facing each other overlap, the connection between the fabric ply 1 and the blocks 2 and 3 being established by means of a coupling part extending from a block 2 through the fabric ply 1 to a block 3. This coupling part will be discussed in more detail in the discussion of Figs 4 and 5.
  • the block mattress In such embodiment of the block mattress, more than 20% of the surface of the fabric ply 1 remains uncovered, which ensures proper conditions for a luxuriant plant vegetation when a block mattress is laid on an underground to be protected and/or reinforced. Because the blocks 2 are in mutual contact only through points, the root systems of the plants growing in the open spaces may intertwine to form a continuous field, as it were, resulting in a proper adhesion of the roots, partly extending through the fabric ply 1, so that the danger of the plants being washed away is small.
  • a block mattress in rolled-up form may be started from, which can readily be realized through the shape of the blocks 2 and 3 on either side of the fabric ply 1, because the block mattress shown is particularly flexible and can be wound up into a rather compact roll.
  • the blocks 3, having the shape of truncated cones contact the underground and can be pressed into the underground relatively easily, partly in view of their shape. This does not only mean that the block mattress is properly anchored relative to the underground, but also that that underground is compacted and hence becomes stronger.
  • the penetration into the underground is arrested by the fabric ply 1 superficially contacting the underground.
  • the anchoring in the underground is such that even when the mattress is laid on a strongly inclining underground, in most cases the provision of fixing means for retaining the block mattress in position can be omitted.
  • soil can be dumped on the top side thereof, i.e. round and, if necessary, on the blocks 2. Accordingly, due to the hemispherical shape of the blocks 2, the open surface will increase, creating even better conditions for a natural plant vegetation on the block mattress, for instance because the roots of the various plants may now intertwine even better and a proper adhesion of the plants to the underground can be established in horizontal as well as in vertical direction.
  • a further advantage of the block mattress shown is that it is particularly flexible. Should the underground be uneven or subside locally after the block mattress has been laid, such block mattress has such adapting possibilities that this uneven surface can be followed within very wide limits without any trouble. Obviously, this is also advantageous with regard to a proper anchoring of the block mattress relative to the underground. Moreover, more or less floating blocks 3 are prevented from loading the fabric ply 1, so that the danger of damage to the fabric ply 1 is reduced as well.
  • this coupling part has the shape of a center portion 4 forming one whole with both the block 2 and the block 3', which center portion has a transverse section smaller than the faces of the blocks 2 and 3' facing each other such that a central, constricted section is formed.
  • Such an element may be manufactured from concrete, but in that case a reinforcement should be present at least in section 4, extending into the blocks 2 and 3'.
  • the element shown in Fig. 4 is of a one-piece construction and is manufactured from synthetic material.
  • a further possibility is to manufacture the block 3', the section 4 and an extension thereof in the block 2 in one piece from synthetic material, and the other section of block 2 from concrete.
  • the block 3' comprises a smaller base than the block 2 and the constituent parts of the fabric ply 1 should be capable of being locally drawn apart thus far, that the block 3' can pass the ply 1.
  • the structure of the fabric ply 1 can be adapted thereto. It is observed that generally, after the element and elements grouped thereabout have been provided, it will no longer be possible to remove an intermediate element from the fabric ply, so that the elements are sufficiently secured in the fabric ply.
  • each block 2 and 3 comprises a recess 5 in the form of a bore, into which a pin 6 extends, fixedly clamped in the bore through friction between the wall of the bore 5 and protrusions 7 on the pin 6.
  • a pin 6 it is also possible to cast the pin 6 in one-sidedly when the block 2 or 3 is formed, and to secure it, after passing it through the fabric ply, in the bore of the other block by means of an adhesive material, or by subsequently casting that other block.
  • Figs 6 and 7 show a further possible embodiment of a block configuration to the connected to a fabric ply, which can for instance be used when a maximally closed surface is desired.
  • two blocks 13 having the shape of a truncated cone are each connected, by means of a coupling part 14, to one block 12, having the shape of a truncated pyramid with a rectangular base and hence a more voluminous shape than two blocks 2 or 3 according to Fig. 5.
  • a honeycomb pattern can be chosen, as shown in Fig. 8, indicating, in bottom view, a portion of a further embodiment of the block mattress.
  • the blocks 23 located on the bottom side of the fabric ply 1 have the shape of a truncated pyramid with a hexagonal base.
  • the blocks 22 arranged on the top side of the fabric ply have the shape of a truncated pyramid with a rectangular base so as to cover the entire surface of the fabric ply.
  • the staggered position of the blocks 22, as may appear most clearly from the side view according to Fig. 9, provides this embodiment with the desired improved wave-braking or wave-breaking action.
  • the block mattress is not only applicable on an inclining underground, which may or may not be water-limiting, but may also be used for protecting and reinforcing horizontal berms, while in particular the block mattresses with checkered pattern are capable of being stacked without any problem, with or without the insertion of soil filling the residual spaces.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)

Claims (12)

  1. Clayonnage à blocs destiné à la protection des talus, bermes et analogue, comprenant une nappe d'étoffe perméable à l'eau (1) à laquelle sont fixés un certain nombre de blocs (2, 3 ; 2, 3' ; 12, 13 ; 22, 23) d'un matériau relativement lourd et dur, tel que le béton, les blocs étant placés des deux côtés de la nappe d'étoffe afin que chaque bloc d'un côté de la nappe soit en face d'un bloc de l'autre côté de la nappe, caractérisé en ce que deux blocs (2, 3 ; 2, 3' ; 12, 13 ; 22, 23) placés l'un en face de l'autre de part et d'autre de la nappe d'étoffe (1) sont interconnectés par une partie d'accouplement (4 ; 6 ; 14) qui est en retrait de tous les côtés par rapport aux faces adjacentes des blocs et qui traverse la nappe d'étoffe.
  2. Clayonnage à blocs selon la revendication 1, caractérisé en ce que la partie d'accouplement est une broche (6).
  3. Clayonnage à blocs selon la revendication 2, caractérisé en ce que la broche (6) est fabriquée en un matériau de synthèse et possède des saillies latérales (7) assurant un raccordement fiable à un bloc (2, 3) qui est préfabriqué ou fabriqué autour de la broche.
  4. Clayonnage à blocs selon la revendication 1, caractérisé en ce que la partie d'accouplement est constituée d'une partie centrale rétrécie (4 ; 14) réalisée en une seule pièce avec les deux blocs (2, 3' ; 12, 13).
  5. Clayonnage à blocs selon l'une quelconque des revendications précédentes, caractérisé en ce que les blocs (2, 3 ; 22, 23) sont pleins et sont disposés avec un dessin tel que des espaces libres sont présents entre les blocs.
  6. Clayonnage à blocs selon la revendication 5, caractérisé en ce que, en plan, les blocs (2, 3 ; 22, 23) ont un contour tel qu'un dessin dans lequel tous les blocs sont en contact mutuel n'établit qu'un seul point de contact ou une seule ligne relativement courte de contact entre deux blocs, si bien que des espaces libres relativement grands restent présents entre les blocs.
  7. Clayonnage à blocs selon l'une quelconque des revendications précédentes, caractérisé en ce que les blocs (3 ; 23) de la face inférieure de la nappe d'étoffe (1) ont une configuration dont la dimension diminue progressivement depuis la nappe et qui assure une pénétration convenable dans une couche de sol.
  8. Clayonnage à blocs selon la revendication 7, caractérisé en ce que les blocs (3 ; 23) ont la configuration d'un tronc de cône ou de pyramide.
  9. Clayonnage à blocs selon l'une quelconque des revendications précédentes, caractérisé en ce que les blocs (2 ; 22) placés à la partie supérieure de la nappe d'étoffe (1) ont une configuration arrondie ou adaptée hydrauliquement d'une autre manière, c'est-à-dire capable de casser ou de freiner les vagues.
  10. Clayonnage à blocs selon la revendication 9, caractérisé en ce que les blocs (2) sont hémisphériques.
  11. Clayonnage à blocs selon l'une quelconque des revendications 5 à 10, caractérisé en ce que les blocs (2, 3) placés d'un premier côté de la nappe d'étoffe (1) et qui se touchent sont disposés avec un dessin en damier.
  12. Clayonnage à blocs selon l'une quelconque des revendications 5 a 10, caractérisé en ce que les blocs (22, 23) placés d'un premier côté de la nappe d'étoffe (1) et qui sont en contact mutuel sont disposés avec un dessin en nid d'abeilles.
EP19940200133 1993-01-21 1994-01-20 Matelas composé de blocs pour la protection de talus, bermes et similaires Expired - Lifetime EP0608036B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9300119A NL9300119A (nl) 1993-01-21 1993-01-21 Blokkenmat ter bescherming van taluds, bermen, e.d.
NL9300119 1993-01-21

Publications (2)

Publication Number Publication Date
EP0608036A1 EP0608036A1 (fr) 1994-07-27
EP0608036B1 true EP0608036B1 (fr) 1997-05-28

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ID=19861952

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Application Number Title Priority Date Filing Date
EP19940200133 Expired - Lifetime EP0608036B1 (fr) 1993-01-21 1994-01-20 Matelas composé de blocs pour la protection de talus, bermes et similaires

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EP (1) EP0608036B1 (fr)
DE (1) DE69403349T2 (fr)
NL (1) NL9300119A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5632571A (en) * 1995-05-31 1997-05-27 The Tensar Corporation Concrete geomattress
US5823709A (en) * 1996-07-09 1998-10-20 The Tensar Corporation Interconnected block system
US5911539A (en) * 1996-07-09 1999-06-15 The Tensar Corporation Interconnected block system
RU2518419C1 (ru) * 2012-10-30 2014-06-10 Общество с ограниченной ответственностью "Спецпром 1" Способ укладки гибкого защитного бетонного мата на донную поверхность и универсальный гибкий защитный бетонный мат (варианты)
RU2603036C2 (ru) * 2014-12-24 2016-11-20 Федеральное государственное бюджетное образовательное учреждение высшего образования "Дальневосточный государственный университет путей сообщения" (ДВГУПС) Гибкое защитное бетонное покрытие и способ его возведения
RU2645229C1 (ru) * 2017-01-23 2018-02-19 Федеральное государственное бюджетное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" (ФГБНУ "РосНИИПМ") Гибкое защитное бетонное покрытие

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2211952A5 (fr) * 1972-12-26 1974-07-19 Morillon Corvol Courbot
EP0152232A3 (fr) * 1984-02-03 1986-03-19 United Wire Group Public Limited Company Tapis de stabilisation
GB2212195A (en) * 1987-10-16 1989-07-19 Bukasa Ltd Cellular stabilization and protective structure
WO1989009854A1 (fr) * 1988-04-08 1989-10-19 Dunlop Limited Protection contre l'erosion
DE8906060U1 (de) * 1989-05-12 1989-08-03 Textec Textil Engineering und Consulting GmbH, 1000 Berlin Bewehrungsmatte

Also Published As

Publication number Publication date
NL9300119A (nl) 1994-08-16
EP0608036A1 (fr) 1994-07-27
DE69403349D1 (de) 1997-07-03
DE69403349T2 (de) 1998-01-08

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