EP0266206A1 - Erdungstäbe und Verfahren und Vorrichtung zum Formen und Einbringen dieser Stäbe - Google Patents

Erdungstäbe und Verfahren und Vorrichtung zum Formen und Einbringen dieser Stäbe Download PDF

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Publication number
EP0266206A1
EP0266206A1 EP87309582A EP87309582A EP0266206A1 EP 0266206 A1 EP0266206 A1 EP 0266206A1 EP 87309582 A EP87309582 A EP 87309582A EP 87309582 A EP87309582 A EP 87309582A EP 0266206 A1 EP0266206 A1 EP 0266206A1
Authority
EP
European Patent Office
Prior art keywords
rod
ground
set forth
driver
jaw
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Withdrawn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
EP87309582A
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English (en)
French (fr)
Inventor
Anton M. Kies
Harry C. Van Den Nieuwelaar
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.)
Erico International Corp
Original Assignee
Erico International Corp
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
Priority claimed from US07/107,798 external-priority patent/US4921217A/en
Application filed by Erico International Corp filed Critical Erico International Corp
Publication of EP0266206A1 publication Critical patent/EP0266206A1/de
Withdrawn legal-status Critical Current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
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/26—Placing by using several means simultaneously
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin

Definitions

  • This invention relates generally as indicated to ground rods, and more particularly to one piece ground rods of substantial length, and a method and apparatus for forming and placing such rods.
  • Ground rods are normally steel rods having a copper cladding. They are normally formed in discrete relatively short lengths or sections such as about 3 meters and are driven into the ground by pounding. The lengths are coupled one to another as the driving progresses. Such couplings are relatively expensive and must not only be able to transmit the driving force but also provide a good electrical connection. If buckling occurs it is usually at a coupling. The coupling process at the site of installation is difficult and troublesome. The pounding process is also difficult since the coupling must be made close to the ground while the pounding or driving process then starts over again at the top of the next section. Moreover, when threaded connections are used the pounding process may damage the ends of the rod sections.
  • the installer then has a choice; which is, make a bad connection, or start over. Such problems are exacerbated by the malleability of the copper cladding which is easily marred or damaged. Moreover, such couplings are the usual source of corrosion or failure over the expected life of the ground rod after installation.
  • ground rods and coulings therefor may be seen in the following United States patents: U.S. Patent 4,577,053; U.S. Patent 3,716,649; Canadian Patent 473,618; and U.S. Patent 2,186,482.
  • ground rod which could be formed and placed directly from a large or an extended length or coil of copper clad steel rod.
  • the handling and placement of extremely long straight sections presents a daunting transportion and placement problem and would require massive, unwieldly and very expensive equipment. This is because ground rods are oftentimes driven to significant depths. Such depths may exceed the length of a football field.
  • the ground rod be formed in a readily transportable package such as a coil and that the placement apparatus also be potable. It is further desirable that the placement apparatus be capable of driving either coiled continuous rod or straight rod sections, and be able to pull the rod from the ground.
  • a one piece ground rod of substantial length is placed in the ground with the apparatus and method of the present invention.
  • the apparatus includes a coiled supply of such rod which is fed from such coiled supply downwardly through a driver which includes two sets of straightener rolls, and into a vertically movable gripping jaw.
  • the jaw is mounted on a slide movable axially of the rod.
  • the jaw and the slide are hydraulically operated. When the jaw is closed, the slide is driven downwardly to move the ground rod through a bottom guide into the earth. At the end of the stroke of the slide, the jaw is opened and the slide retracted. When the jaw is again closed the slide is again extended driving the rod into the earth.
  • the action of the slide incrementally draws the rod from the coiled supply, through the straightening rolls and drives it into the earth to the desired depth.
  • a vibration system providing high frequency impacts automatically comes into operation.
  • the vibration system may be applied mechanically or hydraulically.
  • the hydraulic driving cylinder is mounted for limited movement which brings into play the vibration system.
  • the vibration system may be actuated in response to pressure i n the hydraulic system.
  • the mechanical vibration system utilizes a rotary stepped ring, while the hydraulic system may use an auxilliary pulse creating pump, or rotary or shuttle valves in the system. At such desired depth the rod is cut off and a suitable connection made.
  • the coiled supply and the driver may be mounted on a vehicle with the driver hinged at the back of the vehicle for quick positioning and set up to the desired position and location.
  • the angle of the rod driven into the ground may readily be controlled and the driver, when not in use, may be positioned automatically on the vehicle for transportation with the rod supply.
  • the end of the rod may be placed to project slightly from the ground or be positioned slightly below the surface.
  • the rod may also be pulled from the ground by simply reversing the operation of the driver.
  • the driving may be accomplished in a fully automatic fashion and the driver may be powered from the hydraulic system of the vehicle.
  • FIG. 1 and 2 there is illustrated generally a ground rod driver 10 in accordance with the present invention which is mounted on the back of a truck or other vehicle shown generally at 11.
  • the truck includes a bed 12 supported on rear wheels 13 and 14.
  • Mounted on the bed of the truck is a hydraulic crane shown generally at 16.
  • the hook 17 of the crane on the end of the boom 18 may be positioned over the end of the truck.
  • the crane is hydraulically operated from hydraulic supply unit shown generally at 20 which includes, in conventional fashion, a hydraulic pump driven by the engine of the truck.
  • the hydraulic supply unit also driv es the ground rod driver 10 as well as piston-cylinder assemblies hereinafter described which facilitate the placement of the ground rod driver in the proper upright or angled position at the rear of the truck bed.
  • FIG. 22 and 23 Also mounted on the truck bed are two upstanding supports or frames shown generally at 22 and 23 which include horizontal top frame members 24 and 25, respectively. Centered on such horizontal frame members are saddle blocks 26 and 27 which cooperate with hinged blocks 28 and 29 which are readily locked in closed position by wing nut fasteners 30 and 31.
  • the hinge and saddle blocks are provided with mating half round surfaces which in the closed position receive the axle 33 of a spool 34 containing a coiled supply of ground rod. In this manner the coil of ground rod at the rear of the truck, thus supported, is free to rotate about its horizontal axis.
  • the driver 10 comprises an elongated frame 40 which at the rear lower end thereof is provided with a transverse strut 41 which is pivoted at 42 and 43 to links 44 and 45.
  • the opposite ends of the links are pivoted at 46 and 47 to the rear axle housing of the truck by the clevis connections illustrated.
  • the links may be spread at their outer ends and offset upwardly at their inner ends as indicated at 48.
  • a clevis pivot connection 50 for the rod 51 of a piston-cylinder assembly 52 Positioned above the horizontal strut 41 is a clevis pivot connection 50 for the rod 51 of a piston-cylinder assembly 52, the cylinder of which is pivoted at 53 to the truck bed 12.
  • a piston-cylinder assembly 52 By extending the piston-cylinder assembly 52 the angular position of the frame 40 may be changed so as to control the angle at which the ground rod is driven into the ground indicated at 55.
  • the crank arms are secured to horizontal tube 64 pivoted on fixed shaft 65.
  • a shorter crank arm 66 is provided in the middle of the tube to which a rod 67 of piston-cylinder assembly 68 is pivotally connected as indicated at 69.
  • the blind end of the piston-cylinder assembly is pivotally connected at 70 to bracket 71 secured to the truck bed. Accordingly, extension of the piston-cylinder assembly 68 will cause the frame 40 to move from a transport position to the vertical or driving position shown, the angle of which may be controlled by the piston-cylinder assembly 52.
  • the top of the frame 40 includes a somewhat narrower extension 73 to the face of which is secured a bracket 74 on top of which is a rod guide 75.
  • the guide 75 includs a conical guide aperture 76 to facilitate the threading of the leading end of the rod 77 from the spool 34.
  • the hydraulic vice is shown in more detail in Figure 6.
  • the hydraulic vice is mounted for vertical sliding movement in gibs 88 and 89 mounted on the face of the frame 40.
  • the vice includes the fixed jaw 85 and a movable vertically coextensive jaw 86 which is opened and closed by hydraulic piston-cylinder assemblies 92 and 93.
  • From the jaws the rod passes through a hydraulic shear 95 which is actuated by piston-cylinder assembly 96 and into the top of a relatively short guide tube 97 which projects a short distance into the ground 55.
  • Guide tube 97 may be removably mounted on short horizontal frame extension 98 secured to the bottom of the frame 40.
  • a piston-cylinder assembly 100 In order to move the jaw assembly 87 vertically there is provided a piston-cylinder assembly 100, the rod 101 of which is connected to the top of the housing 103 of the vice assembl y.
  • the blind end of the piston-cylinder assembly 100 is pivoted through the clevis connection 104 mounted on plate 105 secured to the bottom end of mounting plate 106 for the roll straighteners 80 and 81.
  • the plate 106 is provided with angled edges 108 and 109 which are retained by gibs seen at 110 and 111. Such gibs project from face plate 112 secured to the front of the frame 40. Plate 105 at the bottom of the roll plate 106 projects beneath the face plate 112 so that the blind end of the piston-cylinder assembly 100 cannot move or back-off beyond the abutment between the plate 105 and the bottom of the face plate 112.
  • the straightening roll sets 80 and 81 are arranged to straighten the rod in two different planes.
  • the roll set 80 straightens the rod in a plane parallel to the axis of the coil or spool while the roll set 81 straightens the rod in a plane normal to the axis of the roll or spool.
  • the roll set 80 may sometimes be omitted.
  • the roll set 80 includes three fixed rolls 120, 121 and 122 and two opposed adjustable rolls 123 and 124 which are movable by adjusting screws 125 and 126, respectively.
  • the rolls 123 and 124 are movable toward and away from the nest formed between the rolls 120,121 and 122.
  • Roll set 81 includes fixed rolls 128 and 129 and movable rolls 130 and 131, the position of which is controlled by adjusting screws 132 and 133, respectively.
  • the adjustable rolls in each set may be stub shaft rolls and the journals for such shafts may be movable by the adjusting screws.
  • the adjusting screws and shaft journals are mounted in the plate 106.
  • the adjusting screws and journals are mounted in block 134 secured to the face of the plate 106.
  • Each of the rolls is profiled as indicated at 136 and the profile of the rolls is chosen in such a way that a complete range of rods may be straightened with the same rolls.
  • the vice or jaw assembly 87 inclues a base 138 provided with grooves 139 and 140 which are confined by and slide in the gibs 88 and 89. Secured to the base are housing side plates 142 and 143 and an end plate 144 on which the piston-cylinder assemblies 92 and 93 are mounted. The end plate may readily be removed from the side plates. Jaw 85 is removably secured to the base 138 while jaw 86 is removably secured to plates 146 mounted on the ends of the rods 147 of the piston-cylinder assemblies 92 and 93.
  • the vice jaws 85 and 86 are made from normal steel and have a smooth internal surface. For each diameter of rod it is preferred to use jaws which have the correct profile.
  • the hydraulic pressure generated by the jaw clamping piston-cylinder assemblies 92 and 93 is preferably from about 150 to 180 bar.
  • the pressure generated by the pushing piston-cylinder assembly 100 can be regulated between approximately 10 and 70 bar. In this manner the pressure generated by the piston-cylinder assembly 100 pushing the jaw assembly downwardly can be controlled to avoid slippage and the possibility of marring the cladding on the rod.
  • the facing vibration rings 150 and 151 are provided with inclined surfaces and steps seen at 158.
  • the vibration system provides high frequency vertical impacts which vibrate vertically the entire system including the straighteners, the piston-cylinder assembly 100 and the jaws and thus the rod 77. This facilitates the driving of the rod through difficult to penetrate layers.
  • the motor 156 may preferably be a hydraulic motor also driven from the hydraulic system. Such motor as well as the other hydraulic actuators will normally be controlled automatically but may also be controlled manually from control panel 160.
  • the straighteners 80 and 81 are mounted on a plate 165 which is secured directly to the frame 40. Also, the blind end of the cylinder assembly 100 is supported by bracket 166 also secured to frame 40.
  • the cylinder may, of course, be secured to the straighteners which are in turn secured to the frame but in either case both the cylinder and straighteners are fixed to the frame.
  • a pressure sensor sensing the hydraulic pressure in the blind end of the cylinder assembly may bring into play the hydraulic vibration of the system upon the increase of driving in resistance.
  • the main control hydraulics include pump 168 driven by motor 169.
  • the pump supplies hydraulic fluid from tank 170 to control valve 171 which, depending upon the position of the valve, directs fluid pressure to either line 172 or 173 connected to the blind and rod ends of the cylinder of the assembly 100, respectively, while connecting the other line back to the tank.
  • the line 172 may also contain a pressure sensor 175 and a pressure regulating valve 176.
  • the auxiliary system is shown generally at 180 and includes a pump 181 driven by motor 182.
  • the pump 180 is slightly altered to produce hydraulic pulses, the frequency of which is controlled by the speed of the motor and thus the pump.
  • both pumps 168 and 181 may be gear pumps but the pump 181 has a tooth or portion of a tooth of the idler gear removed.
  • a multiple piston or vane pump can also be used with a piston or vane altered.
  • the output of the pump is connected through control valve 183 to lines 184 and 185 with the former being connected to the blind end of cylinder assembly 100 through check valve 186.
  • the vibration of the system may be brought into play by the shifting of the control valve 183 which may in turn be obtained by actuation of sensor 162 in Figure 8 or by actuation of a pressure sensor 175 if the cylinder is fixed as in Figure 9.
  • hydraulic vibration may be obtained by a rotary valve 188 which is driven by motor 189.
  • the rotary valve opens the pressure in line 172 through line 190 to tank upon rotation of the valve causing pressure pulses.
  • the frequence of the vibration may be controlled by the speed of motor 189.
  • the motor and vibration system may be actuated by the pressure sensor 175 or the position sensor 162.
  • FIG 12 there is illustrated a similar circuit utilizing a reciprocating shuttle valve 19 2 to obtain hydraulic vibration.
  • the shuttle of the valve as illustrated may be spring loaded and driven for reciprocation by cam 193 through motor 194, with the speef of rotation controlling the frequency.
  • the shuttle may also be operated electrically.
  • the guide tube 97 is secured to the tube holder after which the driving unit is placed on the ground with the help of the lifting system, thus pressing the guide tube into the soil.
  • that angle may be controlled by the piston-cylinder assembly 52.
  • the leading end of the rod is then moved from the spool 34 through the guide 75 and through the open straightening roll sets 80 and 81.
  • the roll sets may then be adjusted.
  • the rod leading end then moves downwardly to be gripped by the jaw assembly 87. Usually at this time the straightener will then be adjusted to final position.
  • the vice After the hydraulic system is switched on, the vice will be closed automatically and the hydraulic piston-cylinder assembly will push the vice or jaw assembly downwardly a stroke length of approximately 2/10 of a meter.
  • the vice When the piston-cylinder assembly is extended and the jaw assembly 87 is in the bottom position, the vice will open automatically and the piston-cylinder assembly 100 will retract.
  • the jaw assembly When the jaw assembly is in the top position the jaw assembly again closes and extension again pushes the jaw assembly and the rod downwardly. This intermittent pushing of the rod continues automatically.
  • the rod will pass through the guide tube 97 which may have a length of approximately one-half of a meter and which guides the rod into the top layer of the soil.
  • the use of the guide tube is preferred because the top layer of the soil is usually quite weak and in this top layer it is possible for the rod to bend easily.
  • the guide tube also provides a fixed driving direction into the soil and assists in keeping the rod straight.
  • the upward pressure in the Figure 7 embodiment raises the straightener block or plate 106 causing the vibration rings 150 and 151 to engage thus imparting high frequency impacts to the entire system including the rod.
  • the position sensor or the pressure sensor may bring into play the hydraulic vibration of the system.
  • the counting wheel 82 shows the length of the rod which is in the ground.
  • the cut-off rod may be required to not appear above the soil.
  • the operator may cut the rod close to its final position and then continue driving the rod approximately one-half meter more into the soil.
  • the guide tube is only approximately 2mm larger than the diameter of the rod and accordingly the cut rod ends cannot be side by side within the guide tube.
  • a reversing switch may be provided on the control panel 160 for this purpose.
  • the stroke length of the pushing hydraulic cylinder 100 is approximately .2 meters and includes a pressure area of its cylinder of approximately 33 cm2 which provides a maximum push force of approximately 2.3 tons.
  • the pulling area of the cylinder is approximately 23.5 cm2 providing a maximum pull force of about 1.65 tons.
  • the material with which the present invention can be used is steel rod or wire, galvanized steel, stainless steel, copper or copper clad steel, aluminum or a luminum clad steel, and alloys of these materials.
  • the entire device as illustrated may be installed on a truck on which one spool is installed.
  • the hydraulic pump system is mounted on the engine of the truck and has a pump capacity of approximately 40 liters per minute with 180 bar pressure.
  • the crane on the truck may be used to change spools which may either be brought along on a trailer or on the bed of the truck.
  • one-piece rods may readily be placed to a standard depth of 38 meters. In fact rods in excess of 70 meters have been properly placed with the present invention.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP87309582A 1986-10-31 1987-10-29 Erdungstäbe und Verfahren und Vorrichtung zum Formen und Einbringen dieser Stäbe Withdrawn EP0266206A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US92522586A 1986-10-31 1986-10-31
US925225 1986-10-31
US107798 1987-10-19
US07/107,798 US4921217A (en) 1982-10-31 1987-10-19 Ground rods and apparatus for forming and placing such rods

Publications (1)

Publication Number Publication Date
EP0266206A1 true EP0266206A1 (de) 1988-05-04

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ID=26805172

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EP87309582A Withdrawn EP0266206A1 (de) 1986-10-31 1987-10-29 Erdungstäbe und Verfahren und Vorrichtung zum Formen und Einbringen dieser Stäbe

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EP (1) EP0266206A1 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015904A1 (en) * 1989-06-21 1990-12-27 Roxbury Limited Improvements in or relating to in situ pile formation
EP0448462A1 (de) * 1990-03-20 1991-09-25 Etat Francais Represente Par Le Laboratoire Central Des Ponts Et Chaussees Vorrichtung zum Eintreiben von Stangen in den Boden, insbesondere für Bodenmechanikuntersuchungen
US5404757A (en) * 1990-03-20 1995-04-11 Etat Francais Represented By Laboratoire Central Des Ponts Et Chaussees Device for driving rods used primarily for soil mechanics tests into the ground
WO2003038197A1 (en) * 2001-11-02 2003-05-08 Geo A method and apparatus for driving an elongated body into a floor under a body of water
NL2005672C2 (nl) * 2010-11-11 2012-05-14 Hillcon Piling Equipment B V Werkwijze en inrichting voor het brengen van een funderingselement in een ondergrond.
EP2447464A3 (de) * 2010-10-27 2013-10-09 Weatherford/Lamb, Inc. Transportsystem für durchgehende Stangen
US10427630B1 (en) 2019-01-02 2019-10-01 Altec Industries, Inc. Centrally-mounted ground-rod driver for utility vehicle
WO2019185636A1 (de) * 2018-03-27 2019-10-03 Sandvik Materials Technology Deutschland Gmbh Transportsystem für einen draht oder ein blech und verfahren zum ausliefern eines drahts oder eines blechs
AU2019377666B2 (en) * 2018-11-07 2022-01-13 Taiyuan University Of Technology Hydraulic linear impact vibration pile hammer machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990022A (en) * 1958-05-26 1961-06-27 Schenck Gmbh Carl Ram for driving piles and the like
DE1151846B (de) * 1961-03-08 1963-07-25 Hommema Van 1825 G M B H Nv Verfahren und Vorrichtung zum Eintreiben eines stab- oder rohrfoermigen Erders in den Boden
FR1459546A (fr) * 1965-01-15 1966-11-18 Demag Ag Sonnette pour enfoncer des pieux, palplanches ou analogues
US3709464A (en) * 1971-01-26 1973-01-09 Fairmont Railway Motors Inc Device for imbedding and removing elongated members
US4166508A (en) * 1976-11-24 1979-09-04 Ingenieursbureau A.P. Van Den Berg B.V. Method and a device for introducing a tubular assembly into the soil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990022A (en) * 1958-05-26 1961-06-27 Schenck Gmbh Carl Ram for driving piles and the like
DE1151846B (de) * 1961-03-08 1963-07-25 Hommema Van 1825 G M B H Nv Verfahren und Vorrichtung zum Eintreiben eines stab- oder rohrfoermigen Erders in den Boden
FR1459546A (fr) * 1965-01-15 1966-11-18 Demag Ag Sonnette pour enfoncer des pieux, palplanches ou analogues
US3709464A (en) * 1971-01-26 1973-01-09 Fairmont Railway Motors Inc Device for imbedding and removing elongated members
US4166508A (en) * 1976-11-24 1979-09-04 Ingenieursbureau A.P. Van Den Berg B.V. Method and a device for introducing a tubular assembly into the soil

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015904A1 (en) * 1989-06-21 1990-12-27 Roxbury Limited Improvements in or relating to in situ pile formation
EP0448462A1 (de) * 1990-03-20 1991-09-25 Etat Francais Represente Par Le Laboratoire Central Des Ponts Et Chaussees Vorrichtung zum Eintreiben von Stangen in den Boden, insbesondere für Bodenmechanikuntersuchungen
FR2659997A1 (fr) * 1990-03-20 1991-09-27 France Etat Ponts Chaussees Appareil d'enfoncement dans le sol de tiges utilisees notamment pour essais de mecanique des sols.
WO1991014832A1 (fr) * 1990-03-20 1991-10-03 ETAT FRANÇAIS représenté par le LABORATOIRE CENTRAL DES PONTS ET CHAUSSEES Appareil d'enfoncement dans le sol de tiges utilisees notamment pour essais de mecanique des sols
US5404757A (en) * 1990-03-20 1995-04-11 Etat Francais Represented By Laboratoire Central Des Ponts Et Chaussees Device for driving rods used primarily for soil mechanics tests into the ground
WO2003038197A1 (en) * 2001-11-02 2003-05-08 Geo A method and apparatus for driving an elongated body into a floor under a body of water
US8869580B2 (en) 2009-09-28 2014-10-28 Weatherford/Lamb, Inc. Continuous rod transport system
US9873366B2 (en) 2009-09-28 2018-01-23 Weatherford Technology Holdings, Llc Continuous rod transport system
US9637038B2 (en) 2009-09-28 2017-05-02 Weatherford Technology Holdings, Llc Continuous rod transport system
EP2447464A3 (de) * 2010-10-27 2013-10-09 Weatherford/Lamb, Inc. Transportsystem für durchgehende Stangen
WO2012074381A3 (en) * 2010-11-11 2012-07-19 Hillcon Piling Equipment B.V. Method and device for inserting a foundation element into the ground
NL2005672C2 (nl) * 2010-11-11 2012-05-14 Hillcon Piling Equipment B V Werkwijze en inrichting voor het brengen van een funderingselement in een ondergrond.
WO2019185636A1 (de) * 2018-03-27 2019-10-03 Sandvik Materials Technology Deutschland Gmbh Transportsystem für einen draht oder ein blech und verfahren zum ausliefern eines drahts oder eines blechs
US11541441B2 (en) 2018-03-27 2023-01-03 Sandvik Materials Technology Deutschland Gmbh Transport system for a wire or a sheet and method for delivering a wire or a sheet
EP4219367A1 (de) * 2018-03-27 2023-08-02 Alleima GmbH Transportsystem für einen draht oder ein blech und verfahren zum ausliefern eines drahts oder eines blechs
AU2019377666B2 (en) * 2018-11-07 2022-01-13 Taiyuan University Of Technology Hydraulic linear impact vibration pile hammer machine
US10427630B1 (en) 2019-01-02 2019-10-01 Altec Industries, Inc. Centrally-mounted ground-rod driver for utility vehicle

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Effective date: 19900529

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KIES, ANTON M.

Inventor name: VAN DEN NIEUWELAAR, HARRY C.