EP0267089A1 - Device for the continuous raising of embankments - Google Patents

Device for the continuous raising of embankments Download PDF

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Publication number
EP0267089A1
EP0267089A1 EP87402291A EP87402291A EP0267089A1 EP 0267089 A1 EP0267089 A1 EP 0267089A1 EP 87402291 A EP87402291 A EP 87402291A EP 87402291 A EP87402291 A EP 87402291A EP 0267089 A1 EP0267089 A1 EP 0267089A1
Authority
EP
European Patent Office
Prior art keywords
bar
frame
side walls
settling tank
dike
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Withdrawn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
EP87402291A
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German (de)
French (fr)
Inventor
Jean Desse
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.)
Chimique Des Charbonnages Sa Ste
Orkem SA
Original Assignee
Chimique Des Charbonnages Sa Ste
Chimique des Charbonnages SA
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 Chimique Des Charbonnages Sa Ste, Chimique des Charbonnages SA filed Critical Chimique Des Charbonnages Sa Ste
Publication of EP0267089A1 publication Critical patent/EP0267089A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E02D17/18—Making embankments, e.g. dikes, dams
    • 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
    • E02B3/10—Dams; Dykes; Sluice ways or other structures for dykes, dams, or the like
    • E02B3/102—Permanently installed raisable dykes

Definitions

  • the present invention relates to an apparatus for continuously raising dikes.
  • the deposit is formed by one or more settling basins delimited by dikes.
  • the product arrives as a solid suspended in a pipe.
  • the product settles and forms the deposit.
  • the transport water is separated.
  • the levees can then be raised using the decanted material from the settling tank.
  • Two methods are possible. According to the first, the operation of the settling tank is temporarily stopped. Standard public works equipment is then used: mechanical shovel, dump crane, truck, bulldozer. The new dikes are made with this material. A new operating cycle for the settling tank is then started.
  • the levees are raised without taking out of service the settling tank in successive layers a few tens of centimeters thick.
  • the layers are formed using a "mold" sliding on the dike.
  • the present invention relates to an apparatus for continuously raising a thickness h of a dyke of width d of a settling tank, characterized in that it comprises two rectangular frames having, a width greater than d juxtaposed aligned with so that the side walls of the front and rear frames are in line with one another, an apron raised upwards forming the front wall of the front frame, that the front frame is formed at its rear part by a bar providing a rectangular opening of height h and it is divided in 2 by a bar parallel to the side walls of the front frame, the distance between this bar and the side wall of the front frame located on the outside of the settling tank is equal to d, the rear frame is also formed at its rear by a bar providing an opening of the same height than the rear bar of the front frame and that it comprises two skis, one being mounted on one of the aligned side walls of the front and rear frames and the other on the bar dividing the front frame in half.
  • the apparatus according to the invention consists of two rectangular frames (1) and (2) juxtaposed and aligned, the width of which is greater than that of the upper surface of the dam.
  • the front wall (3) of the frame (1) is constituted at its lower part by a vertical sheet (3a) and it is preferably constituted at its upper part by a sheet (3b) inclined towards the outside.
  • the side walls (4, 4 ⁇ ) also consist of vertical sheets (4a, 4 ⁇ a) surmounted by inclined sheets (4b and 4 ⁇ b).
  • the lower edges of the sheets (3a, 4a and 4 ⁇ a) are located in the same horizontal plane, as are the upper edges of the inclined sheets (3b, 4b and 4 ⁇ b).
  • the different inclined sheets (3b, 4b and 4 ⁇ b) form a hopper.
  • the vertical sheets (4a and 4 ⁇ a) can be provided with slots for the passage of the water contained in the decanted substance.
  • the fourth side of the frame (1) is constituted by a bar (5) which is for example the constituted by a profile.
  • the upper part of this bar (5) is at the same level as the upper edge of the inclined sheets (3b, 4b, and 4 ⁇ b) and the lower edge at the edge between the vertical sheets (3a, 4a, 4 ⁇ a) and the inclined sheets (3b, 4b and 4 ⁇ b).
  • This edge therefore leaves a rectangular free space whose height h relative to the horizontal plane of the lower edges of the sheets (3a, 4a and 4 ⁇ a), corresponds to the thickness of the layer of material which it is desired to add to the dike.
  • the front frame (1) is divided by the bar 6 parallel to the walls (4) and (4 ⁇ ).
  • This bar (6) keeps the ski (10) on the inside of the pool.
  • it has the advantage of making the front frame (1) more rigid.
  • the distance d between the wall (4 ⁇ ) located on the side outside the basin and the bar (6) is equal to the width of the dike.
  • the rear frame (2) is constituted at the front by the bar (5), by the side walls (7 and 7 ⁇ ) located in the extension of the side walls of the frame (1) and by a rear bar (8) the walls side (7 and 7 ⁇ ) are inclined according to the shape to be given to the sides of the dike.
  • the lower edge of the rear bar (8) is at the same level as the lower edge of the bar (6).
  • the lower edges of the vertical parts (4 ⁇ a and 7) rest on a horizontal ski (10).
  • the walls (4 and 4 ⁇ , 7 and 7 ⁇ ) are preferably triangulated by vertical plates (9) so as to make the frame more rigid.
  • At the front of the frame (1) is a front apron (11) forming a transverse ski. Skimmers located under the front apron (11) scratch the top of the existing upper part of the dike to anchor the layer of elevation of the dike.
  • the front apron (11) is also preferably triangulated by vertical plates (9 ⁇ ) so as to make it more rigid.
  • the levee raising device is towed using cables by a crawler excavator or a crawler crane.
  • the shovel or crane takes the material from the settling tank, drains it and introduces it into the frame (1) of the device.
  • the mold having a width greater than the width d of the dam, part of the material falls from the interior side of the basin so as to form an embankment having the embankment angle of the material used.
  • the outer side of the basin is molded at the angle determined for the outer wall of the settling basin.
  • the apparatus according to the present invention therefore makes it possible to maintain the angles of the sides of the dam and the width of the dam.
  • the device When the mold is full and the material sufficiently compacted, the device is slid over the surface of the dike to be raised over a length equal to the length of the frame (1).
  • the heightening of the dike is therefore ensured by successive layers without taking the decantation basin out of service.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Revetment (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Soil Working Implements (AREA)

Abstract

The device consists of two frames (1, 2) mounted on skis (10, 11) and having a width greater than that of the embankment so that part of the material forming the embankment falls from the inner side of the basin to form a slope at the angle of slope of the material used and to maintain the width of the embankment. <IMAGE>

Description

La présente invention concerne un appareil pour la surélévation des digues en continu.The present invention relates to an apparatus for continuously raising dikes.

Il est connu qu'un certain nombre de matières résiduaires issues des industries minières, métallurgiques ou de la chimie minérale sont éliminées par dépôt dans des sites choisis.It is known that a certain number of residual materials from the mining, metallurgical or mineral chemistry industries are eliminated by deposit in selected sites.

Ces dépôts sont constitués par des terrils formés par transport mécanique (bandes, bennes, camions, etc...) ou par transport hydraulique en suspension dans de l'eau.These deposits are formed by heaps formed by mechanical transport (belts, skips, trucks, etc.) or by hydraulic transport suspended in water.

Dans ce dernier cas le dépôt est formé d'un ou plusieurs bassins de décantation délimités par des digues. Dans chacun de ces bassins, le produit arrive sous forme de solide en suspension dans une tuyauterie. Le produit décante et forme le dépôt. L'eau de transport est séparée. La surélévation des digues peut alors être effectuée en utilisant le matériau décanté du bassin de décantation.In the latter case the deposit is formed by one or more settling basins delimited by dikes. In each of these tanks, the product arrives as a solid suspended in a pipe. The product settles and forms the deposit. The transport water is separated. The levees can then be raised using the decanted material from the settling tank.

Deux méthodes sont possibles. Selon la première on arrête provisoirement l'exploitation du bassin de décantation. On emploie alors le matériel de travaux publics courant : pelle mécanique, grue à benne, camion, bulldozer. Les nouvelles digues sont constituées avec ce matériau. Un nouveau cycle d'exploitation du bassin de décantation est ensuite commencé.Two methods are possible. According to the first, the operation of the settling tank is temporarily stopped. Standard public works equipment is then used: mechanical shovel, dump crane, truck, bulldozer. The new dikes are made with this material. A new operating cycle for the settling tank is then started.

Selon la seconde méthode la surélévation des digues est assurée sans mise hors service du bassin de décantation par couches successives de quelques dizaines de centimètres d'épaisseur. Dans ce cas les couches sont constituées à l'aide d'un "moule" glissant sur la digue.According to the second method, the levees are raised without taking out of service the settling tank in successive layers a few tens of centimeters thick. In this case the layers are formed using a "mold" sliding on the dike.

La présente invention concerne un appareil pour la surélévation en continu d'une épaisseur h d'une digue de largeur d d'un bassin de décantation caractérisé par le fait qu'il comporte deux cadres rectangulaires ayant, une largeur supérieure à d juxtaposés alignés de façon à ce que les parois latérales des cadres avant et arrière soient dans le prolongement l'une de l'autre, un tablier relevé vers le haut formant la paroi avant du cadre avant, que le cadre avant est constitué à sa partie arrière par une barre ménageant une ouverture rectangulaire de hauteur h et il est divisé en 2 par une barre parallèle aux parois latérales du cadre avant, la distance entre cette barre et la paroi latérale du cadre avant située du côté extérieur du bassin de décantation est égale à d, le cadre arrière est également constitué à sa partie arrière par une barre ménageant une ouverture de même hauteur que la barre arrière du cadre avant et qu'il comporte deux skis, l'un étant monté sur une des parois latérales alignées des cadres avant et arrière et l'autre sur la barre divisant en deux le cadre avant.The present invention relates to an apparatus for continuously raising a thickness h of a dyke of width d of a settling tank, characterized in that it comprises two rectangular frames having, a width greater than d juxtaposed aligned with so that the side walls of the front and rear frames are in line with one another, an apron raised upwards forming the front wall of the front frame, that the front frame is formed at its rear part by a bar providing a rectangular opening of height h and it is divided in 2 by a bar parallel to the side walls of the front frame, the distance between this bar and the side wall of the front frame located on the outside of the settling tank is equal to d, the rear frame is also formed at its rear by a bar providing an opening of the same height than the rear bar of the front frame and that it comprises two skis, one being mounted on one of the aligned side walls of the front and rear frames and the other on the bar dividing the front frame in half.

La description donnée ci-dessous d'un appareil selon l'invention permettra de mieux comprendre l'invention.

  • La figure 1 est une vue en perspective cavalière d'un appareil selon l'invention.
  • La figure 2 est une vue en plan.
The description given below of an apparatus according to the invention will make it possible to better understand the invention.
  • Figure 1 is a perspective view of an apparatus according to the invention.
  • Figure 2 is a plan view.

L'appareil selon l'invention se compose de deux cadres rectangulaires (1) et (2) juxtaposés et alignés dont la largeur est supérieure à celle de la surface supérieure de la digue. La paroi avant (3) du cadre (1) est constituée à sa partie inférieure par une tôle verticale (3a) et elle est de préférence constituée à sa partie supérieure par une tôle (3b) inclinée vers l'extérieur. De préférence les parois latérales (4, 4ʹ) sont également constituées par des tôles verticales (4a, 4ʹa) surmontées par des tôles inclinées (4b et 4ʹb). Les rebords inférieurs des tôles (3a, 4a et 4ʹa) sont situées dans un même plan horizontal, de même que les rebords supérieurs des tôles inclinées (3b, 4b et 4ʹb). Les différentes tôles inclinées (3b, 4b et 4ʹb) forment un trémie. Les tôles verticales (4a et 4ʹa) peuvent être munies de fentes pour le passage de l'eau contenue dans la substance décantée. Le quatriéme côté du cadre (1) est constitué par une barre (5) qui est par exemp le constituée par un profilé. La partie supérieure de cette barre (5) est au même niveau que le rebord supérieur des tôles inclinées (3b, 4b, et 4ʹb) et le rebord inférieur au niveau de l'arête entre les tôles verticales (3a, 4a, 4ʹa) et les tôles inclinées (3b, 4b et 4ʹb). Ce rebord laisse donc un espace libre rectangulaire dont la hauteur h par rapport au plan horizontal des rebords inférieurs des tôles (3a, 4a et 4ʹa), correspond à l'épaisseur de la couche de matériau que l'on désire ajouter sur la digue. Le cadre avant (1) est divisé par la barre 6 parallèle aux parois (4) et (4ʹ). Cette barre (6) maintient le ski (10) du côté intérieur au bassin. De plus, elle a l'avantage de rendre le cadre avant (1) plus rigide. La distance d, entre la paroi (4ʹ) située du côté extérieur au bassin et la barre (6) est égale à la largeur de la digue. Lors du fonctionnement la partie du cadre avant (1) située entre la barre (6) et la paroi (4ʹ) située du côté intérieur au bassin est au dessus du vide. Le cadre arrière (2) est constitué à l'avant par la barre (5), par les parois latérales (7 et 7ʹ) situées dans le prolongement des parois latérales du cadre (1) et par une barre arrière (8) les parois latérales (7 et 7ʹ) sont inclinées selon la forme à donner aux flancs de la digue.The apparatus according to the invention consists of two rectangular frames (1) and (2) juxtaposed and aligned, the width of which is greater than that of the upper surface of the dam. The front wall (3) of the frame (1) is constituted at its lower part by a vertical sheet (3a) and it is preferably constituted at its upper part by a sheet (3b) inclined towards the outside. Preferably the side walls (4, 4ʹ) also consist of vertical sheets (4a, 4ʹa) surmounted by inclined sheets (4b and 4ʹb). The lower edges of the sheets (3a, 4a and 4ʹa) are located in the same horizontal plane, as are the upper edges of the inclined sheets (3b, 4b and 4ʹb). The different inclined sheets (3b, 4b and 4ʹb) form a hopper. The vertical sheets (4a and 4ʹa) can be provided with slots for the passage of the water contained in the decanted substance. The fourth side of the frame (1) is constituted by a bar (5) which is for example the constituted by a profile. The upper part of this bar (5) is at the same level as the upper edge of the inclined sheets (3b, 4b, and 4ʹb) and the lower edge at the edge between the vertical sheets (3a, 4a, 4ʹa) and the inclined sheets (3b, 4b and 4ʹb). This edge therefore leaves a rectangular free space whose height h relative to the horizontal plane of the lower edges of the sheets (3a, 4a and 4ʹa), corresponds to the thickness of the layer of material which it is desired to add to the dike. The front frame (1) is divided by the bar 6 parallel to the walls (4) and (4ʹ). This bar (6) keeps the ski (10) on the inside of the pool. In addition, it has the advantage of making the front frame (1) more rigid. The distance d between the wall (4ʹ) located on the side outside the basin and the bar (6) is equal to the width of the dike. During operation, the part of the front frame (1) located between the bar (6) and the wall (4ʹ) located on the interior side of the basin is above the vacuum. The rear frame (2) is constituted at the front by the bar (5), by the side walls (7 and 7ʹ) located in the extension of the side walls of the frame (1) and by a rear bar (8) the walls side (7 and 7ʹ) are inclined according to the shape to be given to the sides of the dike.

Le rebord inférieur de la barre arrière (8) est au même niveau que le rebord inférieur de la barre (6). Les rebords inférieurs des parties verticales (4ʹa et 7) reposent sur un ski horizontal (10). Les parois (4 et 4ʹ, 7 et 7ʹ) sont de préférence triangulées par des plaques verticales (9) de façon à rendre le cadre plus rigide. A l'avant du cadre (1) se trouve un tablier avant (11) formant ski transversal. Des rasettes situées sous le tablier avant (11) griffent le sommet de la partie supérieure existante de la digue pour assurer l'ancrage de la couche de surélévation de la digue. Le tablier avant (11) est également de préférence triangulé par des plaques verticales (9ʹ) de façon à le rendre plus rigide.The lower edge of the rear bar (8) is at the same level as the lower edge of the bar (6). The lower edges of the vertical parts (4ʹa and 7) rest on a horizontal ski (10). The walls (4 and 4ʹ, 7 and 7ʹ) are preferably triangulated by vertical plates (9) so as to make the frame more rigid. At the front of the frame (1) is a front apron (11) forming a transverse ski. Skimmers located under the front apron (11) scratch the top of the existing upper part of the dike to anchor the layer of elevation of the dike. The front apron (11) is also preferably triangulated by vertical plates (9ʹ) so as to make it more rigid.

L'appareil de surélévation des digues est tracté à l'aide de câbles par une pelle à chenille ou une grue à chenille. La pelle ou la grue prélève le matériau dans le bassin de décantation, l'égoutte et l'introduit dans le cadre (1) de l'appareil. Le moule ayant une largeur supérieure à la largeur d de la digue une partie du matériau tombe du côté intérieur au bassin de façon à former un talus ayant l'angle de talus du matériau utilisé. Le côté extérieur du bassin est moulé à l'angle déterminé pour la paroi extérieure du bassin de décantation. L'appareil selon la présente invention permet donc de maintenir les angles des flancs de la digue et la largeur de la digue. Lorsque le moule est plein et le matériau suffisamment tassé on fait glisser l'appareil sur la surface de la digue à surélever sur une longueur égale à la longueur du cadre (1). La surélévation de la digue est donc assurée par couches successives sans mise hors service du bassin de décantation.The levee raising device is towed using cables by a crawler excavator or a crawler crane. The shovel or crane takes the material from the settling tank, drains it and introduces it into the frame (1) of the device. The mold having a width greater than the width d of the dam, part of the material falls from the interior side of the basin so as to form an embankment having the embankment angle of the material used. The outer side of the basin is molded at the angle determined for the outer wall of the settling basin. The apparatus according to the present invention therefore makes it possible to maintain the angles of the sides of the dam and the width of the dam. When the mold is full and the material sufficiently compacted, the device is slid over the surface of the dike to be raised over a length equal to the length of the frame (1). The heightening of the dike is therefore ensured by successive layers without taking the decantation basin out of service.

Il va de soi que la présente invention n' été décrite et représentée qu'à titre d'exemple préférentiel et qu'on peut y apporter des équivalences techniques dans des éléments constitutifs sans pour autant sortir de son cadre. It goes without saying that the present invention has only been described and shown as a preferred example and that technical equivalences can be made to it in constituent elements without going beyond its ambit.

Claims (1)

Appareil pour la surélévation en continu d'une épaisseur h d'une digue de largeur d d'un bassin de décantation à l'aide d'un moule glissant sur la digue caractérisé par le fait qu'il comporte deux cadres rectangulaires (1 et 2) ayant une largeur supérieure à d juxtaposés et alignés de façon que les parois latérales (4 et 7, 4ʹ et 7ʹ respectivement) des cadres (1) et (2) soient dans le prolongement l'une de l'autre, un tablier (11) relevé vers le haut formant la paroi avant du cadre (1), que le cadre (1) est constitué à sa partie arrière par une barre (5) ménageant entre le plan horizontal contenant le rebord inférieur des parois latérales (4, 4ʹ, 7 et 7ʹ) un espace rectangulaire de hauteur h, et qu'il est divisé en 2 par une barre (6) parallèle aux parois latérales (4 et 4ʹ) du cadre (1) la distance entre cette barre et la paroi latérale (4ʹ) du cadre (1) située du côté extérieur du bassin de décantation est égale à d, que le cadre (2) est constitué à sa partie arrière par une barre (8) ménageant une ouverture de même hauteur que la barre (5) et qu'il comporte deux skis horizontaux longitudinaux (10, 10ʹ) dont l'un (10ʹ) est monté sur la partie inférieure des parois latérales (4ʹ et 7ʹ) situées du côté extérieur au bassin de décantation et l'autre (10) sous la barre (6).Apparatus for the continuous elevation of a thickness h of a dike of width d of a settling tank using a mold sliding on the dike, characterized in that it comprises two rectangular frames (1 and 2) having a width greater than d juxtaposed and aligned so that the side walls (4 and 7, 4ʹ and 7ʹ respectively) of the frames (1) and (2) are in line with one another, an apron (11) raised upwards forming the front wall of the frame (1), that the frame (1) is constituted at its rear part by a bar (5) forming between the horizontal plane containing the lower edge of the side walls (4, 4ʹ, 7 and 7ʹ) a rectangular space of height h, and that it is divided into 2 by a bar (6) parallel to the side walls (4 and 4ʹ) of the frame (1) the distance between this bar and the side wall (4ʹ) of the frame (1) located on the outside of the settling tank is equal to d, that the frame (2) is formed at its rear part by a bar ( 8) providing an opening of the same height as the bar (5) and that it comprises two longitudinal horizontal skis (10, 10ʹ), one of which (10ʹ) is mounted on the lower part of the side walls (4ʹ and 7ʹ) located on the outside of the settling tank and the other (10) under the bar (6).
EP87402291A 1986-10-16 1987-10-14 Device for the continuous raising of embankments Withdrawn EP0267089A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8614363A FR2605339B1 (en) 1986-10-16 1986-10-16 APPARATUS FOR THE CONTINUOUS LIFTING OF DAMS.
FR8614363 1986-10-16

Publications (1)

Publication Number Publication Date
EP0267089A1 true EP0267089A1 (en) 1988-05-11

Family

ID=9339893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402291A Withdrawn EP0267089A1 (en) 1986-10-16 1987-10-14 Device for the continuous raising of embankments

Country Status (5)

Country Link
EP (1) EP0267089A1 (en)
FR (1) FR2605339B1 (en)
MA (1) MA21085A1 (en)
SU (1) SU1574181A3 (en)
TN (1) TNSN87112A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429130A (en) * 1962-11-14 1969-02-25 Strabag Bau Ag Dam construction
DE2646592B1 (en) * 1976-10-15 1977-12-15 Teerbau Gmbh Strassenbau PROCESS FOR LAYING INSTALLATION OF ASPHALT CORE SEALS AND DEVICE FOR PERFORMING THE PROCESS
FR2371551A1 (en) * 1976-11-22 1978-06-16 Nat Res Dev EQUIPMENT FOR THE REALIZATION OF DYGES
EP0059515A1 (en) * 1981-02-27 1982-09-08 A/S Veidekke Machine for the layered placing of core material and of the adjacent transitional material for dams

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429130A (en) * 1962-11-14 1969-02-25 Strabag Bau Ag Dam construction
DE2646592B1 (en) * 1976-10-15 1977-12-15 Teerbau Gmbh Strassenbau PROCESS FOR LAYING INSTALLATION OF ASPHALT CORE SEALS AND DEVICE FOR PERFORMING THE PROCESS
FR2371551A1 (en) * 1976-11-22 1978-06-16 Nat Res Dev EQUIPMENT FOR THE REALIZATION OF DYGES
EP0059515A1 (en) * 1981-02-27 1982-09-08 A/S Veidekke Machine for the layered placing of core material and of the adjacent transitional material for dams

Also Published As

Publication number Publication date
MA21085A1 (en) 1988-07-01
TNSN87112A1 (en) 1990-01-01
SU1574181A3 (en) 1990-06-23
FR2605339A1 (en) 1988-04-22
FR2605339B1 (en) 1988-12-02

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