EP0448462A1 - Vorrichtung zum Eintreiben von Stangen in den Boden, insbesondere für Bodenmechanikuntersuchungen - Google Patents

Vorrichtung zum Eintreiben von Stangen in den Boden, insbesondere für Bodenmechanikuntersuchungen Download PDF

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Publication number
EP0448462A1
EP0448462A1 EP91400744A EP91400744A EP0448462A1 EP 0448462 A1 EP0448462 A1 EP 0448462A1 EP 91400744 A EP91400744 A EP 91400744A EP 91400744 A EP91400744 A EP 91400744A EP 0448462 A1 EP0448462 A1 EP 0448462A1
Authority
EP
European Patent Office
Prior art keywords
rod
drum
ground
winding
driving
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
EP91400744A
Other languages
English (en)
French (fr)
Other versions
EP0448462B1 (de
Inventor
Paul J. Soulard
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.)
Laboratoire Central des Ponts et Chaussees
Etat Francais
Original Assignee
Laboratoire Central des Ponts et Chaussees
Etat Francais
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 Laboratoire Central des Ponts et Chaussees, Etat Francais filed Critical Laboratoire Central des Ponts et Chaussees
Publication of EP0448462A1 publication Critical patent/EP0448462A1/de
Application granted granted Critical
Publication of EP0448462B1 publication Critical patent/EP0448462B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
    • E02D1/025—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil combined with sampling
    • 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
    • E02D13/06—Accessories for placing or removing piles or bulkheads, e.g. noise attenuating chambers for observation while placing
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/20—Placing by pressure or pulling power

Definitions

  • the present invention relates to an apparatus for driving rods into the ground, used in particular for soil mechanics tests.
  • Known devices use straight rods, generally tubular and made of metal, in order to resist compressive and tensile forces, fragmented into sections of length between one and a few meters.
  • the stem sections must be stored on a suitable support, handled one after the other, screwed end to end during insertion, then unscrewed and restocked during extraction.
  • the European document EP 0 266 206 in particular proposes an apparatus for driving into the ground a rod in one piece unwound from a drum carried by a chassis.
  • the apparatus comprises a device for dressing the rod and a driving device arranged upstream of the dressing device.
  • the rod used is a metallic rod coated with copper which requires for permanent penetration, therefore a high stress. It is mentioned in this document that the operation of the driving device can be reversed to allow extraction of the rod. But this document does not mention how the rod is rewound on this drum, which would require reverse permanent deformation at an equally high stress. These permanent deformations in one direction or the other are incompatible with the use of the rod in a high number of cycles.
  • the object of the present invention is to provide an insertion and extraction device which is provided with a rod allowing a high number of insertion and extraction cycles to be carried out.
  • the rod used is made of composite material which is both sufficiently rigid to be able to undergo and transmit longitudinal forces of insertion and extraction, and sufficiently flexible to allow the rod to be wound on a large radius drum.
  • the invention relates more precisely to an apparatus for driving rods into the ground, used in particular for tests soil mechanics, of the type comprising a one-piece rod resistant to traction and compression, a winding drum for said rod, a driving / extracting device for said rod and a frame supporting said drum winding and said driving / extracting device, said drum being in the form of an annular gutter open towards the outside in which the rod is wound, characterized in that said rod is in the form of a tube sheltering over its entire length electrical and / or optical cables, and / or electrical and / or pneumatic conduits, in that the rod is made of a composite material comprising high resistance fibers embedded in a binder and is capable of be bent by reversible elastic deformation, and, in that said device further comprises a winding motor carried by the chassis and exerting on the drum a torque directed in the direction of e rod winding, said motor being intended to compensate for the spring effect of the rod.
  • the diameter of the rod as well as its constituents are chosen as a function of the maximum possible diameter of the drum, in such a way that irreversible deformation of the rod cannot occur during its winding on the drum.
  • the free end of the rod is naturally adapted to receive a probe or any other measuring instrument.
  • this rod structure it can be used a large number of times.
  • the handling of the device can be done by a single person, the winding motor making it possible to scroll the rod as it sinks into the ground, and to rewind it automatically during the rod extraction phase .
  • Electric cables or other means for transmitting information or motive energy are mounted once and for all in the rod, either in a central passage formed in the rod, or embedded in the material constituting the latter.
  • one or more elements such as electrical conductors can be embedded in the rod, in order to allow rapid detection of the incipient fractures of the latter.
  • the rod driving apparatus is mounted on a trailer 12 equipped with wheels 14, 16 for its movement on the road or other soils, and a drawbar 18 for its towing by a towing vehicle not shown.
  • the device can be mounted on a suitable self-propelled vehicle which comprises means of movement on the ground, such as wheels or even tracks.
  • the trailer carries all the components necessary for the autonomous operation of the rod driving device.
  • the trailer 12 comprises an elongated chassis essentially consisting of two slightly spaced longitudinal beams 20, 22 which are fixed at the front on the drawbar 18 and at the rear on a transverse support structure 24.
  • the two beams rest on the wheel shaft by any means known to those skilled in the art.
  • the trailer In order to establish the trailer in a horizontal position, and to resist crushing forces, the trailer comprises three telescopic feet actuated by jacks, or alternatively actuated manually.
  • a front leg 26 is located towards the middle of the longitudinal beams of the chassis, and two rear legs 28, 30, right and left respectively, are located under the lateral extensions of the transverse support structure which extend to the right and to the left beyond beams 20, 22.
  • the trailer In addition, to oppose the lifting efforts of the trailer, it carries two weights 32, 34 fixed to the right and to the left on the lateral extensions of the support structure. These weights are provided with eyelets 36 which allow the lifting either of the weights or of the trailer by any suitable lifting device.
  • the trailer can be retained on the ground by anchor propellers 38 screwed into the ground and connected to the chassis by shrouds 40 or tensioned chains (Figure 3).
  • the driving device essentially comprises a rod 42 in one piece, a winding drum 44, and a driving / extraction device 46 for the rod, which will be successively described in detail.
  • the rod 42 is made of composite material based on high strength fibers, such as for example glass, carbon, metal or aramid fibers, embedded in a binder, for example a resin. Its section can be of any shape, in particular tubular.
  • the rod is made in one piece, of the necessary length, for example 40 m.
  • Its front end 48 intended to be driven vertically into the ground, is equipped with a penetration head provided with passive or active penetration elements and sensors suitable for measuring soil parameters.
  • the winding drum 44 of the rod 42 is a narrow drum of large diameter disposed generally vertically on the trailer between the two longitudinal beams 20, 22, so that its axis XX is disposed horizontally and transversely relative to the chassis.
  • the drum has a cylindrical rim 50 flanked by two radial flanges 52, 54 and thus constitutes a sort of annular gutter open towards the outside, in which the rod 42 is wound on several juxtaposed and / or superposed turns.
  • the cylindrical rim internally carries a rack 56 intended for its rotation drive as will be seen below.
  • the chassis also comprises two cheeks 58, 60 for holding integral with the support structure 24, directed substantially vertically, and spaced from each other by a sufficient distance to allow the drum to pass between them while guiding it laterally.
  • the weight of the drum 44 is supported by two rollers (Figure 2) held between the two cheeks: an upper roller 62 placed substantially at the same level as the axis of the drum 44 and in contact with the inside of the rim, so that the gutter is, at this level, generally in line with the transverse support structure, and a lower roller 64 placed below the upper roller 62 and in contact with the ends of the flanges 52, 54 of the drum.
  • the lateral guidance of the drum 44 is also ensured in the region which separates the two longitudinal beams 20, 22.
  • the two cheeks carry a winding motor 66 terminated by a toothed wheel 68 which meshes with the internal rack 56 of the rim.
  • this motor is simply intended to ensure the winding of the rod 42 around the drum 44 by compensating for the reverse torque exerted by the rod wound on the drum in the manner of a spring.
  • the motor therefore exerts on the drum a torque always directed in the same direction, although it is caused to rotate in one direction or the other, depending on whether the rod is unwound during driving, or whether the 'it is rolled up during the extraction.
  • a hydraulic motor adapted to these functions will be chosen.
  • the cheeks carry a train of rollers 70a, b, c, ..., q, arranged successively along a line defined as "deformed" of the rod.
  • these rollers define for the rod 42 a raceway the curvature of which varies, from a curvature close to the curvature of the rim 50 of the drum at the level of the first roller 70a situated at the highest point, up to a zero curvature at the level of the last 70q roller located at the bottom.
  • rollers The exact arrangement of the rollers can be determined by calculation and / or experimentally.
  • the other end 72 of the rod is firmly fixed on the drum, for example on one of the flanges 52 and outside of it, and the electric cable which runs through the entire rod extends beyond this. end to lead to a fixed connector (not shown) to which the instruments can be connected of measurement.
  • a fixed connector (not shown) to which the instruments can be connected of measurement.
  • the extension of the cable will be of the twisted type, in order to undergo without damage length variations and twists, due to the rotation of the drum.
  • the rod insertion / extraction device 46 is mounted in the transverse support structure 24, along the vertical rectilinear part of the rod which separates the last roller 70q and the ground.
  • this device comprises two symmetrical parts which cooperate by friction on either side of the rod 42.
  • Each part comprises a guide support 74a, 74b of elongated shape arranged vertically parallel to the rod.
  • Around the guide support runs an endless chain 76a, 76b returned to the two ends of the guide support by geared return wheels 78a, 78b.
  • Each link 80 of the chain ( Figure 4) has on its outer face a housing 82 in which is fixed a shoe 84 made of a wear-resistant material and having a high coefficient of friction with respect to the material of the rod 42, or coating material thereof.
  • the shoe is hollowed out to form a semi-cylindrical contact surface complementary to the section of the rod.
  • a motor 86a, 86b also advantageously a hydraulic motor.
  • the two guide supports comprise arms 88a, 88b which pivot around a vertical axis Ya, Yb, so that the guide supports and chains can be moved away from the rod or brought closer to it using cylinders 90a, 90b which bear on the support structure 24.
  • the arms 88a, 88b of the two guide supports are provided with toothed sectors 92a, 92b in mutual engagement.
  • the chassis carries a motor source 94, advantageously an internal combustion engine driving a hydraulic pump which supplies a flow of liquid under pressure to supply the various motors and jacks described above.
  • a motor source 94 advantageously an internal combustion engine driving a hydraulic pump which supplies a flow of liquid under pressure to supply the various motors and jacks described above.
  • the distribution circuit includes the usual organs such as tank, regulation and safety valves, pressure switches, control valves, as will appear necessary to the skilled person.
  • the chassis finally carries a control cabinet 96 comprising the electrical, electronic or electro-mechanical circuits and the associated contactors necessary to control the operation of the various members.
  • the necessary measurements can be carried out in two ways: either continuously during the insertion of the rod, or at a fixed point when the rod is stopped at a determined position.
  • the power source 94 can be stopped. Indeed, only the winding motor 66 then consumes a little energy and it suffices to provide for this purpose a tank of liquid under pressure of sufficient capacity, so as to maintain the torque avoiding rotation of the drum under the "spring" effect of the rod.
  • the device according to the invention allows the rod to be pressed continuously, practically without manual intervention by the operators, in considerably less time than by the prior techniques.
  • a mechanical blocking device for the drum will be provided to avoid accidental unwinding of the rod.
  • a fairing 98 made of very thick sheet metal will be provided, if not around the entire periphery of the drum. , at least over the entire lower area below the two longitudinal beams ( Figure 2).
  • the internal channel of the rod 42 can house not only electric cables intended to convey low power signals coming from the sensors, but also electric cables intended for the distribution of power to active members in the penetration head, hydraulic or pneumatic return lines, or optical cables.
  • the invention advantageously provides that the rod itself comprises control conducting wires embedded over the length of the rod in the material which constitutes it, connected to an appropriate detection box.
  • the detection unit may imperatively cause the drive motors of the driving-in / out device to stop and require manual extraction and return to service by one of the operators.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
EP19910400744 1990-03-20 1991-03-20 Vorrichtung zum Eintreiben von Stangen in den Boden, insbesondere für Bodenmechanikuntersuchungen Expired - Lifetime EP0448462B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9003562 1990-03-20
FR9003562A FR2659997B1 (fr) 1990-03-20 1990-03-20 Appareil d'enfoncement dans le sol de tiges utilisees notamment pour essais de mecanique des sols.

Publications (2)

Publication Number Publication Date
EP0448462A1 true EP0448462A1 (de) 1991-09-25
EP0448462B1 EP0448462B1 (de) 1994-09-28

Family

ID=9394922

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910400744 Expired - Lifetime EP0448462B1 (de) 1990-03-20 1991-03-20 Vorrichtung zum Eintreiben von Stangen in den Boden, insbesondere für Bodenmechanikuntersuchungen

Country Status (7)

Country Link
EP (1) EP0448462B1 (de)
JP (1) JPH05506286A (de)
AU (1) AU642488B2 (de)
CA (1) CA2078326A1 (de)
DE (1) DE69104250T2 (de)
FR (1) FR2659997B1 (de)
WO (1) WO1991014832A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010411A1 (en) * 1995-09-12 1997-03-20 Transocean Asa A method and a device for use in coil pipe operations
NL1010178C2 (nl) * 1998-09-24 2000-03-27 Berg A P Van Den Beheer Bv Sondeerinrichting en werkwijze voor het bedienen daarvan.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5696920B2 (ja) * 2010-01-19 2015-04-08 玉田 興基 海底地下探査掘削機

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL98343C (de) * 1900-01-01
US3401749A (en) * 1966-09-06 1968-09-17 Dresser Ind Method and apparatus for moving wire-line tools through deviated well bores
US4589796A (en) * 1983-03-18 1986-05-20 Plastigage Corporation Glass fiber sucker rod system
US4726239A (en) * 1987-02-09 1988-02-23 Mcclelland Engineers, Inc. Soil analyzer and penetrator
EP0266206A1 (de) * 1986-10-31 1988-05-04 Erico International Corporation Erdungstäbe und Verfahren und Vorrichtung zum Formen und Einbringen dieser Stäbe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2349484A (en) * 1982-12-24 1984-07-17 Klunder, Horst Plant for making bore-holes in the side walls of underground exploitation chambers of small width
WO1991011646A1 (en) * 1990-01-24 1991-08-08 Johnson Howard E Utility tunneling method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL98343C (de) * 1900-01-01
US3401749A (en) * 1966-09-06 1968-09-17 Dresser Ind Method and apparatus for moving wire-line tools through deviated well bores
US4589796A (en) * 1983-03-18 1986-05-20 Plastigage Corporation Glass fiber sucker rod system
EP0266206A1 (de) * 1986-10-31 1988-05-04 Erico International Corporation Erdungstäbe und Verfahren und Vorrichtung zum Formen und Einbringen dieser Stäbe
US4726239A (en) * 1987-02-09 1988-02-23 Mcclelland Engineers, Inc. Soil analyzer and penetrator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997010411A1 (en) * 1995-09-12 1997-03-20 Transocean Asa A method and a device for use in coil pipe operations
EA000199B1 (ru) * 1995-09-12 1998-12-24 Трансоушн Аса Способ и устройство для работы с гибкими трубами
NL1010178C2 (nl) * 1998-09-24 2000-03-27 Berg A P Van Den Beheer Bv Sondeerinrichting en werkwijze voor het bedienen daarvan.
EP0989240A1 (de) * 1998-09-24 2000-03-29 Verenigde Bedrijven Van Den Berg Heerenveen Holding B.V. Bodenprobevorrichtung und Verfahren zum Betrieb derselben
US6357283B1 (en) 1998-09-24 2002-03-19 Verenigde Bedrijven Van Den Berg Heerenveen Holding B.V. Sounding apparatus and method for operating it

Also Published As

Publication number Publication date
DE69104250T2 (de) 1995-03-30
JPH05506286A (ja) 1993-09-16
AU642488B2 (en) 1993-10-21
AU7563991A (en) 1991-10-21
DE69104250D1 (de) 1994-11-03
WO1991014832A1 (fr) 1991-10-03
FR2659997B1 (fr) 1995-12-01
CA2078326A1 (en) 1991-09-21
EP0448462B1 (de) 1994-09-28
FR2659997A1 (fr) 1991-09-27

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