EP0803612B1 - Bloc de carapace en beton moule monobloc, moule pour la realisation d'un tel bloc - Google Patents

Bloc de carapace en beton moule monobloc, moule pour la realisation d'un tel bloc Download PDF

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Publication number
EP0803612B1
EP0803612B1 EP97400883A EP97400883A EP0803612B1 EP 0803612 B1 EP0803612 B1 EP 0803612B1 EP 97400883 A EP97400883 A EP 97400883A EP 97400883 A EP97400883 A EP 97400883A EP 0803612 B1 EP0803612 B1 EP 0803612B1
Authority
EP
European Patent Office
Prior art keywords
block
indentations
protuberances
blocks
smooth
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
EP97400883A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0803612A1 (fr
Inventor
Michel Denechere
Louis Sanchez
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.)
Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
Original Assignee
Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
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 Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH filed Critical Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
Publication of EP0803612A1 publication Critical patent/EP0803612A1/fr
Application granted granted Critical
Publication of EP0803612B1 publication Critical patent/EP0803612B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E02B3/129—Polyhedrons, tetrapods or similar bodies, whether or not threaded on strings

Definitions

  • the invention relates to a concrete shell block one-piece molded structure for protecting structures sea and river against waves and currents, and a mold for the production of such a block.
  • block designers are to decrease the volume of concrete necessary for a given shell while having stability and robustness in accordance with their use. For it designers play on the dimensions and angles of component parts of the block in order to increase the volume of empty spaces between nested blocks.
  • the resulting blocks give a saving result of significant concrete. However they are less robust and therefore, ultimately, it may appear in the shell a resulting recovery failure, due to broken blocks tamping, exposing part of the works maritime and fluvial and which can be at the origin of damage.
  • NL-A-8903138 relates to a concrete shell block mold.
  • the purpose of this document is to compensate for the fragility of the blocks by a device aimed at decrease the maximum collision force exerted on a block by the other blocks surrounding it.
  • the proposed solution is to provide the block of shell made of molded concrete with a surface layer, asphalt, rubber, or cement-rubber composite, less rigid than the shell block. Thus the shocks between blocks are absorbed.
  • this surface layer can advantageously, and for the same purpose, present protrusions or edges made of wood, rubber or concrete to make the surface layer less rigid than the block it covers.
  • the axis of reflection that led to the present invention is very different. It is based on a significant improvement of the hanging of the blocks together so as to improve the hydraulic coefficient of the shell and therefore limit the movements and shocks between blocks.
  • One of the aims of the present invention is therefore to keep the optimal dimensional ratios of the blocks existing and make a relief on the block surfaces irregular accident, without influence on the resistance structural, constituting a plurality of asperities. So, without weakening the structural strength of the blocks, we obtains an isotropic improvement in attachment.
  • One-piece molded concrete shell blocks must have a smooth outer skin from molding, with possibly, as in NL-A-8903138 a layer superficial added.
  • the invention therefore relates to a concrete shell block one-piece molded structure for protecting structures maritime and inland waterways with a shaped outer surface general defining a smooth polyhedron.
  • a concrete shell block one-piece molded structure for protecting structures maritime and inland waterways with a shaped outer surface general defining a smooth polyhedron.
  • the invention in minus part of the outer surface of the block present protrusions and / or grooves molded in the mass of the block, protrusions and / or grooves having faces in secant planes at the general local level of the smooth polyhedron, these protrusions and / or grooves together forming an irregular hilly relief.
  • the irregular uneven relief increases the blocking coefficient between blocks in all directions (isotropic), and therefore to raise the coefficient of hydraulic stability.
  • the hanging coefficient being increased, the elementary inertia of the block (mass of concrete for a block) can be reduced, the decrease in the mass of each block being compensated by the best attachment between blocks. This saves concrete on completion of a given shell surface.
  • the faces of the protrusions and / or grooves are as many secondary plans of different orientations which increase the possibilities of plan-to-plan contact stabilized between blocks with respect to the smooth surfaces of prior art.
  • the invention relates to a shell block in one-piece molded concrete having protuberances and / or grooves, coming from molding, arranged in a place having a given geomorphism.
  • the protrusions and / or grooves, originating from molding have a general geomorphism substantially equivalent to geomorphism roughness of the place considered.
  • the block having this characteristic has for advantage of replacing natural riprap without deteriorating the site, and by limiting the constraints linked to the supply and delivery of natural riprap to the site.
  • the concrete constituting the block may be colored in the tones of the geological environment of the place considered.
  • the invention also relates to a mold for making a block according to the invention.
  • Figures 1A to 1C are schematic views of a block according to the invention.
  • Figures 2A to 2D are schematic views of a exemplary embodiment of a block according to the invention with granitic geomorphism.
  • Figures 3A to 3D are schematic views of a exemplary embodiment of a block according to the invention with basalt geomorphism.
  • the blocks offered as an example are blocks having for smooth polyhedron the shape of the blocks from US-A-4347017 however these examples intended to illustrate the description are in no way limitative of the basic type of blocks according to the invention.
  • the invention relates to a concrete shell block 1 one-piece molded structure for protecting structures maritime and fluvial.
  • This block 1 is made up of legs 2 arranged together according to angles and inter-leg deviations given.
  • This block 1 has an outer surface 6 of general profile defining a smooth polyhedron 3.
  • smooth polyhedron 3 the smoothed surface of the exterior profile of the block. In art anterior this smooth polyhedron corresponds to the surface gross external formwork release.
  • At least part of the surface exterior 6 presents, with respect to the smooth polyhedron 3, protrusions 4 and / or grooves 5 from molding.
  • the smooth polyhedron 3 of block 1 is imaginary polyhedron corresponding to the surface exterior of an equivalent block which would have been sunk in a smooth mold.
  • the protrusions 4 and / or the grooves 5 are due to grooves and / or protrusions voluntarily made in the mold (not shown) of block 1.
  • the mold (not shown) can be the smooth mold of the equivalent smooth-skin block in which have been added protruding elements comprising or generating between them grooves, so that when the concrete is poured into the mold, it results, in positive, grooves 5 and protrusions 4 on block 1.
  • the volume elementary concrete necessary for the realization of a block 1 according to the invention is reduced in volume of the elements protuberants added to the mold, these elements protuberants creating on the block 1 grooves 5 and protuberances 4 coming, due to the increase in attachment coefficient, compensate for the mass defect elementary of block 1 compared to its smooth equivalent.
  • protrusions 4 and / or grooves 5 have constituent faces in secant planes at the local plane of smooth polyhedron and together form an uneven relief irregular. This therefore considerably increases the number of planes in which nested blocks 1 are likely to find themselves in stabilized support. The resulting overlap presents void spaces more inter-block than with smooth skin blocks while preserving the group effect of the shell.
  • Figures 2A-2D and 3A-3D show two examples of blocks according to the invention on which the protrusions 4 and / or the gorges 5 have a similar geomorphism with respectively a granite site and a basalt site.
  • the blocks according to the invention are integrated into their deposit site without misrepresenting it.
  • the geomorphic block can be advantageously dyed in the mass in a tone similar to the geological colors of the site in which it is deposited.
  • the mold according to the present invention can be a rehabilitated smooth mold.
  • the realization of such rehabilitated mold can include the following steps:
  • the smooth block is coated with a thickness of easily shaped material in which the protuberances and the grooves; then we maintain the block with an outer layer shaped centered in the mold and a material is poured moldable between the shaped outer layer block and the smooth mold wall.
  • a block molding is thus obtained reproducible, and perfectly integrated in molds smooth to rehabilitate.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Revetment (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Road Paving Structures (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Retaining Walls (AREA)
EP97400883A 1996-04-25 1997-04-21 Bloc de carapace en beton moule monobloc, moule pour la realisation d'un tel bloc Expired - Lifetime EP0803612B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9605236 1996-04-25
FR9605236A FR2748044B1 (fr) 1996-04-25 1996-04-25 Bloc de carapace en beton moule monobloc, moule pour la realisation d'un tel bloc

Publications (2)

Publication Number Publication Date
EP0803612A1 EP0803612A1 (fr) 1997-10-29
EP0803612B1 true EP0803612B1 (fr) 2002-03-20

Family

ID=9491586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400883A Expired - Lifetime EP0803612B1 (fr) 1996-04-25 1997-04-21 Bloc de carapace en beton moule monobloc, moule pour la realisation d'un tel bloc

Country Status (20)

Country Link
EP (1) EP0803612B1 (id)
JP (1) JP3903396B2 (id)
KR (1) KR100516862B1 (id)
CN (1) CN1078919C (id)
AR (1) AR006677A1 (id)
AU (1) AU722756B2 (id)
BR (1) BR9701937A (id)
CA (1) CA2203685A1 (id)
DE (1) DE69711109T2 (id)
ES (1) ES2174197T3 (id)
FR (1) FR2748044B1 (id)
ID (1) ID16665A (id)
MA (1) MA24148A1 (id)
MY (1) MY116884A (id)
NO (1) NO322965B1 (id)
PT (1) PT803612E (id)
TN (1) TNSN97069A1 (id)
TR (1) TR199700317A2 (id)
TW (1) TW344774B (id)
ZA (1) ZA973560B (id)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2315193B2 (es) * 2007-09-07 2009-12-04 Sociedad Anonina Trabajos Y Obras Molde para fabricacion de cubipodos de hormigon.
ES2356964B1 (es) * 2008-02-11 2011-11-29 Pedro González Requejo Balasto artificial para infraestructuras ferroviarias.
FR3118973B1 (fr) 2021-01-20 2025-02-28 Soletanche Freyssinet Méthode de suivi du déplacement de blocs préfabriqués d’une carapace d’une digue
CN115233709B (zh) * 2022-05-17 2024-06-21 中国水利水电第九工程局有限公司 一种河床围堰龙口截流装置及截流方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043826A (en) * 1974-11-22 1977-08-23 Hum Bing W Process for making artificial rocks
FR2449164A1 (fr) * 1979-02-14 1980-09-12 Sogreah Bloc artificiel pour structures maritimes et fluviales
US4385088A (en) * 1981-05-22 1983-05-24 David Baskin Decorative artificial rock-like article
DE3740682A1 (de) * 1987-12-01 1989-06-15 Gabriele Donath Verfahren und vorrichtung zum herstellen eines naturgetreu nachgebildeten steines, vorzugsweise eines pflastersteines
NL8903138A (nl) * 1989-12-21 1991-07-16 Hollandsche Betongroep Nv Golfremmende constructie.
US5250250A (en) * 1991-09-19 1993-10-05 Dennis Gorski Process for forming artificial rocks
JP2514887B2 (ja) * 1992-10-05 1996-07-10 昌司 行本 近自然石ブロックの製造方法
JP2588832B2 (ja) * 1993-06-01 1997-03-12 株式会社テトラ コンクリート製擬石の製造方法
US5441362A (en) * 1993-09-30 1995-08-15 The United States Of America As Represented By The Secretary Of The Army Concrete armor unit for protecting coastal and hydraulic structures and shorelines
JPH07331636A (ja) * 1994-06-13 1995-12-19 Masashi Yukimoto 自然石ブロック工法
JP2557024B2 (ja) * 1994-06-15 1996-11-27 昌司 行本 かみあわせを有した近自然石ブロックによる多自然型法面工法
US8903138B1 (en) * 2011-09-06 2014-12-02 Google Inc. Face recognition using pre-templates

Also Published As

Publication number Publication date
NO322965B1 (no) 2006-12-18
JP3903396B2 (ja) 2007-04-11
TR199700317A2 (xx) 1997-11-21
JPH1096222A (ja) 1998-04-14
CA2203685A1 (fr) 1997-10-25
ES2174197T3 (es) 2002-11-01
AR006677A1 (es) 1999-09-08
MA24148A1 (fr) 1997-12-31
PT803612E (pt) 2002-07-31
AU722756B2 (en) 2000-08-10
AU1901797A (en) 1997-10-30
DE69711109T2 (de) 2002-09-05
CN1078919C (zh) 2002-02-06
TNSN97069A1 (fr) 1999-12-31
ID16665A (id) 1997-10-30
DE69711109D1 (de) 2002-04-25
BR9701937A (pt) 1998-09-15
CN1168436A (zh) 1997-12-24
KR100516862B1 (ko) 2005-11-21
EP0803612A1 (fr) 1997-10-29
NO971871D0 (no) 1997-04-23
FR2748044A1 (fr) 1997-10-31
NO971871L (no) 1997-10-27
MX9703058A (es) 1998-06-30
MY116884A (en) 2004-04-30
FR2748044B1 (fr) 1998-07-10
ZA973560B (en) 1997-11-19
TW344774B (en) 1998-11-11

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