FR2586047A2 - Raft foundation supported on small piles and devices for using it - Google Patents

Raft foundation supported on small piles and devices for using it Download PDF

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Publication number
FR2586047A2
FR2586047A2 FR8512181A FR8512181A FR2586047A2 FR 2586047 A2 FR2586047 A2 FR 2586047A2 FR 8512181 A FR8512181 A FR 8512181A FR 8512181 A FR8512181 A FR 8512181A FR 2586047 A2 FR2586047 A2 FR 2586047A2
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FR
France
Prior art keywords
raft
slab
paving
spike
tube
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.)
Granted
Application number
FR8512181A
Other languages
French (fr)
Other versions
FR2586047B2 (en
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from FR8413471A external-priority patent/FR2569739B1/en
Application filed by Individual filed Critical Individual
Priority to FR8512181A priority Critical patent/FR2586047B2/en
Publication of FR2586047A2 publication Critical patent/FR2586047A2/en
Application granted granted Critical
Publication of FR2586047B2 publication Critical patent/FR2586047B2/en
Expired legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/28Placing of hollow pipes or mould pipes by means arranged inside the piles or pipes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/01Flat foundations
    • E02D27/02Flat foundations without substantial excavation
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/48Foundations inserted underneath existing buildings or constructions

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Structures (AREA)

Abstract

The invention relates to raft foundations supported on small piles for the base slab of lightweight buildings. The subject of the invention is a raft foundation supported on small piles comprising a reinforced concrete slab supported on cylindrical elements or small piles driven into the ground, characterised in that each small pile is connected to the slab via a section 41 which progressively widens from the small pile to the slab. The invention also relates to devices for using these raft foundations. Application to raft foundations supported on small piles.

Description

DEMANDE DE PREMIER CERTIFICAT D'ADDITION
A LA DEMANDE DE BREVET N" 84 13471 DU 29.08.84
RADIER SUR PICOTS, ET DISPOSITIFS POUR SA MISE EN OEUVRE
La présente invention concerne des perfectionnements aux radiers sur picots décrits dans le brevet principal N 84 13471.
APPLICATION FOR FIRST ADDITION CERTIFICATE
AT THE PATENT APPLICATION NO. 84 13471 OF 29.08.84
DELETE ON SPOTS, AND DEVICES FOR ITS IMPLEMENTATION
The present invention relates to improvements to the rafts on pins described in the main patent N 84 13471.

Dans ce type de radier on a prévu dans ledit brevet principal une liaison par acier, et de renfort dans le cas des picots béton et une collerette soudée dans le cas des picots métalliques. Or, il 5 ' avère plus économique conformément à la présente invention d'effectuer un élargissement des têtes qui, dans le cas du battage à l'aide d'un mandrin1 est réalisé en mettant en forme la tête du mandrin et, dans le cas du picot métallique pour dallage existant, en terrassant la tête du picot dans le support du dallage. Ces élargissements permettent une meilleure liaison radier/picot et réduisent la portée entre appuis. In this type of raft is provided in said main patent a steel connection, and reinforcement in the case of concrete pins and a welded flange in the case of metal pins. Now, it turns out to be more economical in accordance with the present invention to carry out a widening of the heads which, in the case of threshing using a mandrel1 is carried out by shaping the head of the mandrel and, in the case metallic stud for existing paving, by digging the stud head into the paving support. These widenings allow a better connection to radiate / spike and reduce the range between supports.

La présente invention a donc pour objet un radier sur picots comportant une dalle en béton armé prenant appui sur des éléments cylindriques ou picots fichés dans le sol, caractérisé en ce que chaque picot se raccorde à la dalle par l'intermédiaire d'une section qui va en s'élargissant au fur et à mesure que l'on se rapproche de la dalle. The present invention therefore relates to a raft on spikes comprising a reinforced concrete slab bearing on cylindrical elements or spikes stuck in the ground, characterized in that each spike is connected to the slab via a section which widens as you get closer to the slab.

L'invention concerne également un radier plus particulièrement destiné à un dallage préexistant dans lequel sont réalisés des trous, la tête des picots étant scellée dans le dallage, ledit radier étant caractérisé en ce que chaque picot est constitué par un tube métallique scellé dans son trou de logement ainsi que dans une tête en micro-béton, de préférence de forme conique, réalisée dans le sol sous le dallage.  The invention also relates to a slab more particularly intended for a pre-existing paving in which holes are made, the head of the pins being sealed in the paving, said slab being characterized in that each spike is constituted by a metal tube sealed in its hole housing as well as in a micro-concrete head, preferably conical, made in the ground under the paving.

Enfin, l'invention concerne en outre des dispositifs pour la mise en oeuvre de ces radiers et plus précisément un mandrin télescopique ainsi qu'un batteur pour la réalisation des picots autour des bâtiments existants ou à l'intérieur. Finally, the invention also relates to devices for the implementation of these rafts and more specifically a telescopic mandrel and a beater for the production of pins around existing buildings or inside.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit et qui est faite en référence aux dessins annexés, dans lesquels
- Figure 1 représente une coupe longitudinale d'un
picot en béton conforme à l'invention
- Figure 2 représente une coupe longitudinale d'un
mandrin selon l'invention pour la réalisation du
picot de la figure 1
- Figure 3 représente une coupe longitudinale d'un
picot métallique pour dallage préexistant, et;
- Figure 4 représente une coupe longitudinale d'un bat
teur automatique selon l'invention pour la réalisa
tion du picot suivant la figure 3.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows and which is given with reference to the appended drawings, in which
- Figure 1 shows a longitudinal section of a
concrete stud according to the invention
- Figure 2 shows a longitudinal section of a
mandrel according to the invention for producing the
spike of figure 1
- Figure 3 shows a longitudinal section of a
metal pin for pre-existing paving, and;
- Figure 4 shows a longitudinal section of a bat
automatic teur according to the invention for carrying out
tion of the pin according to figure 3.

A la figure 1, on a représenté en 41 la partie élargie d'un picot en béton 42. Cette partie 41 de raccordement du picot à la dalle peut avoir une forme tronconique de préférence, ou autre, et est destinée à assurer une meilleurs assise à la superstructure de l'ouvrage. In Figure 1, there is shown at 41 the enlarged part of a concrete pin 42. This part 41 for connecting the pin to the slab may preferably have a frustoconical shape, or other form, and is intended to ensure better seating. to the superstructure of the structure.

A la figure 2, est représenté un mandrin télescopique permettant de former dans le sol les élargissements 41 des picots en béton 42. In FIG. 2, a telescopic mandrel is shown making it possible to form in the ground the enlargements 41 of the concrete studs 42.

Le mandrin est conforme du brevet principal et comprend un élément métallique cylindrique inférieur 43 muni d'un fond et un élément métallique cylindrique supérieur 44 pouvant coulisser coaxialement sur l'élément inférieur d'une certaine amplitude grâce à un jeu de tenons et fentes 45. A la partie supérieure l'élément 44 s'élargit par une paroi tronconique 46. The mandrel conforms to the main patent and comprises a lower cylindrical metallic element 43 provided with a bottom and an upper cylindrical metallic element 44 which can slide coaxially on the lower element of a certain amplitude by means of a set of tenons and slots 45. At the upper part, the element 44 widens by a frustoconical wall 46.

A la figure 3, qui est une coupe sur un dallage existant 47, est représenté un tube métallique 48 d'un picot, fermé à son extrémité inférieure et engagé dans un trou 49 réalisé à cet effet dans le dallage 47 et scellé dans une tête en micro-béton 50, taillée dans le sol support du dallage. La tête 50 a une forme générale, de préférence, de cône inversé.  In Figure 3, which is a section on an existing paving 47, is shown a metal tube 48 of a spike, closed at its lower end and engaged in a hole 49 made for this purpose in the paving 47 and sealed in a head in micro-concrete 50, cut in the soil supporting the paving. The head 50 has a general shape, preferably, of an inverted cone.

A la figure 4, est représenté un batteur automatique plus spécialement destiné à la réalisation des picots de la figure 3, et qui se compose d'un mouton 51 constitué d'un barreau métallique coulissant dans un tube de picot 48 et manoeuvré par un câble 52 passant sur un jeu de poulies fixes de renvoi 53a,53b,53c,53d,53e et sur une poulie d'entraînement mobile 54 solidaire de la tige d'un vérin à air comprimé 55. In Figure 4, there is shown an automatic mixer more specifically intended for the production of the pins of Figure 3, and which consists of a sheep 51 consisting of a metal bar sliding in a spike tube 48 and operated by a cable 52 passing over a set of fixed return pulleys 53a, 53b, 53c, 53d, 53e and over a movable drive pulley 54 secured to the rod of a compressed air cylinder 55.

L'extrémité du brin du câble 52 est tenue par un treuil 56 solidaire de la tête du tube 48.The end of the cable strand 52 is held by a winch 56 secured to the head of the tube 48.

A ce système de mouflage, une course de la poulie 54 provoque pour le mouton 51 une chute de hauteur double. In this hauling system, a stroke of the pulley 54 causes the sheep 51 to drop from double height.

Le treuil 56 permet de régler la longueur du câble52 afin que l'on obtienne une bonne percussion du mouton sur le fond du tube. The winch 56 makes it possible to adjust the length of the cable 52 so that a good impact of the sheep is obtained on the bottom of the tube.

La fixation du treuil 56 sur le tube permet de maintenir constante la frappe du mouton puisque le câble s'allonge côté mouton de la même longueur que celle de la descente du tube. Attaching the winch 56 to the tube keeps the strike of the sheep constant since the cable lengthens on the sheep side of the same length as that of the descent of the tube.

Deux vannes de fin de course 57a et 57b réglables, permettent d'automatiser le mouvement du vérin 55 et la course.  Two adjustable limit switches 57a and 57b, automate the movement of the jack 55 and the stroke.

Claims (6)

REVENDICATIONS 1. Radier sur picots selon la revendication 1 du brevet principal, caractérisé en ce que chaque picot se raccorde à la dalle par.l'intermédiaire d'une section (41,50) qui va en s'élar- gissant au,, fur et à mesureçque lton- se rapproche de la dalle. 1. Radar on spikes according to claim 1 of the main patent, characterized in that each spike is connected to the slab par.l'intermediate of a section (41.50) which is widening as, and as lton- gets closer to the slab. 2. Radier sui-vant-la-revendication 1 " caractérisé en ce que la section élargie est tronconique (41).  2. Raft sui-vant-la-Claim 1 "characterized in that the enlarged section is frustoconical (41). 3. Radier suivant la revendication 1, plus particulièrement destiné à un dallage préexistant (47) dans lequel sont réalisés des trous (49), la tête des picots étant scellé dans le dallage, ledit radier étant caractérisé en ce que chaque picot est constitué par un tube métallique (48) scellé dans son trou de logement (49) ainsi que dans une tête en micro-béton (50), de préférence de forme conique, réalisée dans le sol sous le dallage (47). 3. A raft according to claim 1, more particularly intended for a pre-existing paving (47) in which holes are made (49), the head of the pins being sealed in the paving, said raft being characterized in that each spike is constituted by a metal tube (48) sealed in its housing hole (49) as well as in a micro-concrete head (50), preferably of conical shape, produced in the ground under the paving (47). 4.Dispositif pour la réalisation du radier suivant la revendication 1 ou 2, caractérisé en ce qu'il est constitué d'un mandrin télescopique comprenant deux éléments cylindriques métalliques coaxiaux (43,44) reliés entre eux par un système de tenons et de fentes (45) permettant le libre coulissement coaxial réciproque des deux éléments sur une certaine distance, l'élément inférieur étant obturé à son extrémité,cependant que l'élément supérieur (44) comporte un élargissement tronconique (46) à sa partie supérieure. 4.A device for producing the raft according to claim 1 or 2, characterized in that it consists of a telescopic mandrel comprising two coaxial metallic cylindrical elements (43,44) connected together by a system of tenons and slots (45) allowing the free reciprocal coaxial sliding of the two elements over a certain distance, the lower element being closed at its end, while the upper element (44) has a frustoconical widening (46) at its upper part. 5. Dispositif pour la réalisation du radier suivant la revendication 3, caractérisé en ce qu'il est constitué d'un batteur comprenant un mouton (51) formé d'un barreau métallique coulissant dans le tube à battre (48) destiné au picot et manoeuvré par un câble (52) passant sur des poulies (53a à 53e) fixes et relié, à son autre extrémité, à un treuil (56) fixé à l'extrémité supérieure dudit tube (48), ledit câble passant égaiement, entre deux poulies fixes, sur une poulie (54) déplaçable à l'aide d'un vérin (55). 5. Device for producing the raft according to claim 3, characterized in that it consists of a beater comprising a sheep (51) formed of a metal bar sliding in the threshing tube (48) intended for the spike and operated by a cable (52) passing over fixed pulleys (53a to 53e) and connected, at its other end, to a winch (56) fixed to the upper end of said tube (48), said cable passing equally between two fixed pulleys, on a pulley (54) movable by means of a jack (55). 6. Dispositif suivant la revendication 5, caractérisé en ce que ledit vérin (55) est disposé verticalement et sa course est réglable et commandée automatiquement par des vannes de fin de course (57a,57b).  6. Device according to claim 5, characterized in that said cylinder (55) is arranged vertically and its stroke is adjustable and controlled automatically by limit switches (57a, 57b).
FR8512181A 1984-08-29 1985-08-06 DELETE ON SPOTS, AND DEVICES FOR ITS IMPLEMENTATION Expired FR2586047B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8512181A FR2586047B2 (en) 1984-08-29 1985-08-06 DELETE ON SPOTS, AND DEVICES FOR ITS IMPLEMENTATION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8413471A FR2569739B1 (en) 1984-08-29 1984-08-29 RADIER ON PEGS FOR THE SEAT OF LIGHT BUILDINGS, METHOD AND DEVICE FOR THE PRODUCTION THEREOF
FR8512181A FR2586047B2 (en) 1984-08-29 1985-08-06 DELETE ON SPOTS, AND DEVICES FOR ITS IMPLEMENTATION

Publications (2)

Publication Number Publication Date
FR2586047A2 true FR2586047A2 (en) 1987-02-13
FR2586047B2 FR2586047B2 (en) 1988-06-17

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FR8512181A Expired FR2586047B2 (en) 1984-08-29 1985-08-06 DELETE ON SPOTS, AND DEVICES FOR ITS IMPLEMENTATION

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FR (1) FR2586047B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002081827A1 (en) * 2001-04-09 2002-10-17 Teräsbetoni Oy Bank slab construction, method for preparing the same, construction slab and construction pile

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL14981C (en) * 1900-01-01
US3172485A (en) * 1963-05-07 1965-03-09 Raymond Int Inc Downcrowding arrangement for pile driving and the like
US3184893A (en) * 1960-04-11 1965-05-25 Contact Foundation Inc Contact foundation method
NL6704436A (en) * 1967-03-28 1968-09-30
FR2216397A1 (en) * 1973-02-02 1974-08-30 Pynford Ltd
FR2300849A1 (en) * 1975-02-14 1976-09-10 Xaintois Sa Motoculture Tractor mounted post driver - has hammer and post guides and control lever for disconnection when on uneven ground
DE2545572A1 (en) * 1975-10-10 1977-04-14 Hans Ribbert BUILDING ANCHORING
US4023325A (en) * 1975-11-11 1977-05-17 Paverman Grisha H Load bearing reinforced ground slab
FR2369386A1 (en) * 1976-10-27 1978-05-26 Bsp Int Foundation PUNCHING DEVICE
NL185766C (en) * 1976-01-28 1990-07-16 Saab Scania Ab Ejection seat construction with arm protection device.

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL14981C (en) * 1900-01-01
US3184893A (en) * 1960-04-11 1965-05-25 Contact Foundation Inc Contact foundation method
US3172485A (en) * 1963-05-07 1965-03-09 Raymond Int Inc Downcrowding arrangement for pile driving and the like
NL6704436A (en) * 1967-03-28 1968-09-30
FR2216397A1 (en) * 1973-02-02 1974-08-30 Pynford Ltd
FR2300849A1 (en) * 1975-02-14 1976-09-10 Xaintois Sa Motoculture Tractor mounted post driver - has hammer and post guides and control lever for disconnection when on uneven ground
DE2545572A1 (en) * 1975-10-10 1977-04-14 Hans Ribbert BUILDING ANCHORING
US4023325A (en) * 1975-11-11 1977-05-17 Paverman Grisha H Load bearing reinforced ground slab
NL185766C (en) * 1976-01-28 1990-07-16 Saab Scania Ab Ejection seat construction with arm protection device.
FR2369386A1 (en) * 1976-10-27 1978-05-26 Bsp Int Foundation PUNCHING DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002081827A1 (en) * 2001-04-09 2002-10-17 Teräsbetoni Oy Bank slab construction, method for preparing the same, construction slab and construction pile

Also Published As

Publication number Publication date
FR2586047B2 (en) 1988-06-17

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