EP0401334B1 - Engin de travaux publics utilisable notamment pour la pose de drains verticaux - Google Patents

Engin de travaux publics utilisable notamment pour la pose de drains verticaux Download PDF

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Publication number
EP0401334B1
EP0401334B1 EP90900210A EP90900210A EP0401334B1 EP 0401334 B1 EP0401334 B1 EP 0401334B1 EP 90900210 A EP90900210 A EP 90900210A EP 90900210 A EP90900210 A EP 90900210A EP 0401334 B1 EP0401334 B1 EP 0401334B1
Authority
EP
European Patent Office
Prior art keywords
machine according
guide tracks
drains
guide
sliding
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
EP90900210A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0401334A1 (fr
Inventor
Gérard LARCHERON
Yves Legendre
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.)
Entreprises Morillon Corvol Courbot SA
Original Assignee
Entreprises Morillon Corvol Courbot 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 Entreprises Morillon Corvol Courbot SA filed Critical Entreprises Morillon Corvol Courbot SA
Publication of EP0401334A1 publication Critical patent/EP0401334A1/fr
Application granted granted Critical
Publication of EP0401334B1 publication Critical patent/EP0401334B1/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
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D13/00—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers
    • E02D13/04—Guide devices; Guide frames
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
    • E02D3/103—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by installing wick drains or sand bags

Definitions

  • the present invention relates to a public works machine, usable in particular for the installation of vertical drains, both on land and underwater.
  • vertical drainage is carried out to improve the bearing capacity of certain soils, such as compressible soils intended to receive the foundations of structures.
  • the invention is particularly well suited to the installation of flexible artificial drains such as strainer tubes or ribbons, covered or not with a textile filter and arranged in a pre-established mesh, of the order of several meters per meter, depending on the capacity of drainage to be obtained.
  • the subject of the invention is a high-performance laying machine making it possible to reduce site times and ensuring by means guiding light and adaptable structure good horizontal and vertical positioning of a plurality of drains placed simultaneously, in particular drains of large vertical extension.
  • the invention therefore provides a public works machine, usable in particular for laying by sinking vertical artificial drains, of the type comprising a support frame, a mobile assembly carrying a plurality of penetrating sinking tools for carrying out the simultaneous laying of several drains and means integral with the chassis for the vertical guidance of the movable assembly, characterized in that said guide means comprise a plurality of guide paths with vertical extension arranged for at least two of them in spacing l 'from each other, said guide tracks being constituted by cables, or thin profiles, in particular rods, suitably stiffened vertically between two spacing structures, arranged respectively with respect to the supporting frame, the first, called high structure, in an elevated position and the second, said low structure placed substantially at the level of the supporting frame, preferably near the so l in the event of work on land of the machine, said ebant structures secured to said chassis.
  • cables or thin profiles as guideways facilitates, in particular by their relative lightness with respect to current guide masts, the adjustment and the dimensioning in height and in spacing of the guide means according to the mobile equipment on the one hand, and the height and spacing of the drains to be installed on the other.
  • the chassis comprises a platform carrying a pivoting lifting boom, the spacing structures being respectively secured to the free end of the boom and to the end of an advanced platform.
  • the guide tracks and the penetrating tools are arranged symmetrically with respect to the same vertical axis called the guide axis.
  • This arrangement eliminates the overhang encountered in particular in installations equipped with a single guide mast in the lateral position (the weight of the mobile assembly being able to reach several tonnes) and, consequently, to use an even lighter guide structure and therefore easier to set up on site.
  • the guidance of penetrating tools can be further improved in several ways, in particular by moving the guide tracks away from a distance close to the elementary spacing provided for the drains, and / or by mounting the penetrating tools on a set of sleepers themselves slidingly mounted on the guide means.
  • the mobile assembly comprises a driving head, for example a hydraulic vibrator, mounted sliding on the guide tracks and associated with a force transmitter-distributor coupled to penetrating tools.
  • a driving head for example a hydraulic vibrator
  • the device for installing vertical drains has a chassis 10 automobile carrier rotatably mounted on a tracked plate 12.
  • the chassis comprises a platform 14 on which is pivotally mounted in a conventional manner a lifting boom 16 held in position by an arrangement of cables 18 and winch (not shown) driven by the main engine 20 of the machine.
  • a projection 22 (of length adjustable by telescopic device and pivotally mounted to be folded down during transport off site of the machine) which ends with a spacer 25 extending fairly close to the ground S.
  • the boom 16 comprises a conventional lifting arrangement with a carrying cable 24 mounted on a pulley 26 disposed at the head of the boom and from which is suspended a mobile tool-carrying assembly 28 (illustrated in more detail in FIG. 2).
  • This movable assembly 28 consists, by way of nonlimiting example, of a driving head 30 integral with a force transmitter-distributor 32 associated with several penetrating tools 34 (in the present case two tools mounted in parallel symmetrically relative to the driving head 30), such as steel tubes adapted to penetrate the ground and each receiving a flexible drain 36.
  • the drains 36 are unwound on demand from two drums 37 arranged on either side other of the advance 22 and are routed to the tubes 34 by the arrow 16.
  • the mobile assembly 28 is guided by guide means integral with the support frame 10 and comprising a plurality (two in the example described here) of guide paths 38 with vertical extension. These two guide paths are arranged in separation from one another.
  • the easily adjustable spacing is chosen to ensure that the moving equipment and penetrating tools are kept in the pre-established position. This spacing is chosen according to the number of guide paths and can be variable for each pair of guide paths.
  • the guide tracks consist of cables 38 whose ends are fixed to the spacer 25 and to another spacer structure (here the spacer 40) secured to the head of the boom 16.
  • the cables 38 of adjustable length are suitably stiffened by turnbuckles (not shown). Their vertical extension is significant and can reach several tens of meters.
  • thin profiles such as bars, rods, profiles are used in place of the cables.
  • the driving head 30 is integral with a cross member 42 slidably mounted on the two cables 38.
  • the spatial arrangement of the guide tracks 38, relative to the lifting cable 24 and the penetrating tools (the tubes 34) is such that the guide cables 38 and the driving tubes 34 are arranged symmetrically with respect to the same vertical axis GG 'said guide axis.
  • the spacers 25 and 40 are centered relative to the guide axis G-G ', in this case relative to the axis of symmetry of the moving assembly (here represented by the cable 24) and we has the four anchoring points of the guide cables A1, A2, A3 and A4 in a vertical plane passing through the lifting cable 24 to the right of the exit from the groove of the pulley 26.
  • This arrangement in particular avoids the effects of overhangs which could be significant taking into account the weight of the mobile equipment (between one and two tonnes).
  • the guide means also include a set of crosspieces 44 on which the tubes 34 slide and which are themselves slidably mounted on the guide cables 38. These crosspieces participate in the maintenance of the tubes 34 to avoid the risk of buckling in the latter during the realization of deep drains.
  • the crosspieces 44 hooked by holding chains (not shown) to the force transmitter-distributor 32, are stacked on the spacer 25 as the tubes 34 descend into the ground.
  • This spacer 25 also comprises two positioning collars 46 for the tubes in the vicinity of the ground S.
  • the guide tracks are advantageously arranged on the side penetrating tools, distant, in this case given by way of nonlimiting example, by a distance close to the elementary spacing provided for the drains.
  • the cables are arranged outside, relative to the axis G-G ', of the tubes 34.
  • the driving head 30 is of the hydraulic vibrator type supplied with fluid under high pressure by flexible pipes 48 from a hydraulic unit 50 carried by the platform 14.
  • the vibrator 30 is of classical architecture and includes a battery of eccentrics driven in rotation by the pressurized fluid to transmit (via a clip-clamp here associated with the distributor 32) oscillating vertical vibrations to the penetrating tools in this case to tubes 34. These vibrations, with a frequency between 1500 and 2500 vibrations / minute, are transmitted to the ground. There occurs, in the immediate vicinity of the penetrating tube, a fluidification of the soil which facilitates the penetration (or pulling out) of the tube.
  • the force transmitter-distributor 32 is in the form of a U-shaped beam whose ends receive the two attachment heads of the tubes 34. As shown in FIG. 2, the sides of the U-shaped part are made by reinforced plates in the form of an isosceles triange receiving the vibrator clip 30 at their peaks. Of course, all this moving part is centered on the guide axis G-G '.
  • the device thus described is implemented in the following manner. After placing the machine in the working position relative to the ground, the tubes, in the raised position, are fitted with drains and foot shoes. The two tubes are then simultaneously penetrated by vibratory drilling until the required depth is reached. The tubes 34 are then lifted up, the drains remaining in place thanks to the shoes which hang in the ground. We can finally cut the drains thus installed to move the machine to its new working position.
  • FIGS. 3, 4 and 5 show schematically and partially three other embodiments of mobile equipment carrying tools according to the invention; elements identical or similar to those previously described in relation to FIGS. 1 and 2, bear the same reference numbers increased by 100, 200 and 300 respectively.
  • the mobile assembly illustrated in FIG. 3 allows the simultaneous installation of four drains 136 conducted by the four penetrating tubes 134 secured to the horizontal part of the force distributor 132 according to an arrangement of two internal tubes and two external tubes symmetrical with respect to the guide axis G-G ', as illustrated in FIG. 3.
  • the cables 138 are arranged in the vicinity but outside, with respect to the axis G-G', of the tubes 134 interns.
  • the driving head 30 is slidably mounted by means of the spacer 142 and the horizontal part of the distributor 132.
  • the triangular plates 133 are provided with reinforcements 135 arranged in a star from the point of the plates towards the hooking heads of the tubes, as illustrated in FIG. 3.
  • a set of crosspieces is provided (corresponding to the crosspieces 44), mounted sliding on the cables 138 to contribute to guiding the four tubes 134.
  • FIGS. 4 and 5 illustrate two other embodiments of the effort transmitter-distributor according to the invention.
  • the transmitter-distributor has a flat structure (frame or plate) 232, 332, defining a regular polygon centered on the vertical guide axis G-G '.
  • the penetrating tools, here the tubes 234 and 334, are secured to the planar structure in a symmetrical arrangement relative to the axis G-G ', preferably at the vertices of the regular polygon defined on the structure.
  • the structure 232, 332 is slidably mounted on the guide cables in an arrangement also symmetrical with respect to the axis G-G '.
  • the force transmitter-distributor illustrated in Figure 4 allows the simultaneous installation of three drains arranged in a triangular mesh.
  • the planar structure 232 in the shape of an equilateral triangle, receives the tubes 234 at its vertices and is mounted to slide, preferably by the middle of its sides, to the three guide cables 238 themselves disposed at the vertices of an equilateral triangle.
  • the spacing between cables is approximately half that of the drains to be installed.
  • the spacer structures are adapted to this triangular arrangement of the cables.
  • the driving head is in the example described here, a hydraulic hammer of cylindrical shape 230 kept centered on the axis GG 'by three tabs 242 slidably mounted on the cables 238.
  • the flat structure 232 is provided with vertical ribs 235 arranged as illustrated in FIG. 4 to regularly distribute the force transmitted by the driving head 230.
  • the force transmitter-distributor illustrated in Figure 5 allows the simultaneous installation of four drains arranged in a square mesh.
  • the planar structure 332 is in the form of a square plate at the vertices of which are secured the four penetrating tubes 334, the whole being centered on the axis G-G '.
  • the square plate is also slidably mounted on two guide cables 338, by the media on two opposite sides.
  • the driving head consists of two hydraulic vibrators 330 mounted in parallel and symmetrically with respect to the axis GG 'and suitably coupled by a synchronism bar 231.
  • each cable 338 is replaced by a pair of cables mounted in the vicinity of one another symmetrically with respect to the middle of a two opposite sides of the square plate. It should be noted however that in this arrangement with four cables, at least some of them are arranged in separation from each other (by choosing two cables each taken from a different pair).
  • the invention can also be used on water without any particular difficulty.
  • the platform 14 is mounted on a floating barge.
  • the invention is also not limited to the installation of vertical drains but can be used for other applications in which a plurality of tools are driven vertically into the ground simultaneously.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
EP90900210A 1988-12-26 1989-12-18 Engin de travaux publics utilisable notamment pour la pose de drains verticaux Expired - Lifetime EP0401334B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817171 1988-12-26
FR8817171A FR2641015B1 (enrdf_load_stackoverflow) 1988-12-26 1988-12-26

Publications (2)

Publication Number Publication Date
EP0401334A1 EP0401334A1 (fr) 1990-12-12
EP0401334B1 true EP0401334B1 (fr) 1993-08-25

Family

ID=9373412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90900210A Expired - Lifetime EP0401334B1 (fr) 1988-12-26 1989-12-18 Engin de travaux publics utilisable notamment pour la pose de drains verticaux

Country Status (7)

Country Link
US (1) US5145279A (enrdf_load_stackoverflow)
EP (1) EP0401334B1 (enrdf_load_stackoverflow)
DE (1) DE68908699D1 (enrdf_load_stackoverflow)
FR (1) FR2641015B1 (enrdf_load_stackoverflow)
OA (1) OA09108A (enrdf_load_stackoverflow)
PT (1) PT92705A (enrdf_load_stackoverflow)
WO (1) WO1990007611A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405392U1 (de) * 1994-03-30 1995-02-23 Ing. G. Klemm Bohrtechnik GmbH, 57489 Drolshagen Vorrichtung zum Einbringen eines Drainagebandes in den Erdboden
NL1000092C2 (nl) * 1995-04-07 1996-10-08 Stichting Grondmechanica Delft Drainagesysteem voor het afvoeren van water uit een grondlaag.
US5787786A (en) * 1996-05-09 1998-08-04 Sauer-Sundstrand - Control Concepts Dual hydraulic oscillator for the reciprocating cutter of an agricultural machine
SE0202533D0 (sv) * 2002-08-28 2002-08-28 Sandvik Ab A wear part for a crusher

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191125970A (en) * 1911-11-21 1912-10-03 Mark Heaton Robinson An Improved Method of Constructing Piled Wharves, Piers, and the like, and Apparatus therefor.
US2046323A (en) * 1934-05-12 1936-07-07 Wolfe Mark C De Flexible telescoping guide
SE305629B (enrdf_load_stackoverflow) * 1965-04-26 1968-10-28 J Johansson
JPS506115A (enrdf_load_stackoverflow) * 1973-05-22 1975-01-22
DE2600173A1 (de) * 1976-01-05 1977-07-14 Mueller & Co Masch Fernthal Baggermaeklereinrichtung zum rammen und ziehen von rammprofilen
JPS61186612A (ja) * 1985-02-14 1986-08-20 Tatsuo Morimoto ドレインボ−ドの打込方法および打込装置
NL8503390A (nl) * 1985-12-09 1987-07-01 Nico Gerhard Cortlever Inrichting voor het in de grond brengen van een drainagelint.

Also Published As

Publication number Publication date
DE68908699D1 (de) 1993-09-30
WO1990007611A1 (fr) 1990-07-12
US5145279A (en) 1992-09-08
EP0401334A1 (fr) 1990-12-12
PT92705A (pt) 1990-06-29
FR2641015B1 (enrdf_load_stackoverflow) 1991-07-19
OA09108A (fr) 1991-10-31
FR2641015A1 (enrdf_load_stackoverflow) 1990-06-29

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