US3763654A - Pile driving and drawing apparatus - Google Patents

Pile driving and drawing apparatus Download PDF

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Publication number
US3763654A
US3763654A US00288630A US3763654DA US3763654A US 3763654 A US3763654 A US 3763654A US 00288630 A US00288630 A US 00288630A US 3763654D A US3763654D A US 3763654DA US 3763654 A US3763654 A US 3763654A
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United States
Prior art keywords
pile
peripheral surface
earth
hydraulic jacks
frame member
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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
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US00288630A
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English (en)
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K Matsushita
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
    • 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
    • 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
    • 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
    • E02D7/24—Placing by using fluid jets
    • 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

Definitions

  • This invention relates to pile driving and drawing apparatus and more particularly to an apparatus of the above kind which can drive and draw a pile noise-free and vibration-free without being affected by the geological properties of the site of construction.
  • a noise-free and vibration free pile driving method such as a method in which a hole is previously bored by means such as an earth auger or earth drill and then a pile is dropped into the hole or a so-called cast-in-place pile driving method in which a steel pipe is driven into the earth and concrete is then cast into the steel pipe.
  • a large-sized and unstable machine must be used and the earth and sand in the excavated hole must naturally be discharged to the earth surface. Further, the prior art methods have been defective in that the driving and drawing of piles cannot be satisfactorily carried out.
  • FIG. 1 is a schematic front elevation of a caterpillar mounting thereon a pile driving and drawing apparatus according to the present invention
  • FIG. 2 is a longitudinal section of parts of the apparatus of the present invention during pile driving operation
  • FIG. 3 is a top plan view when viewed along the line III-III in FIG. 2;
  • FIG. 4 is a section taken on the line IVIV in FIG.
  • FIG. 5 is a side elevation of parts of the apparatus when viewed along the line V-V in FIG. 3;
  • FIG. 6 is a section of a part of a pile which difi'ers slightly in shape from the pile shown in FIG. 2.
  • a frame member 5 is fixedly mounted on a central portion of a caterpillar.
  • an annular guide rail 21 is formed at the lower end of a substantially annular supporting portion 20 of the frame member 5.
  • An annular member 6 is formed with a ratchet 6' at the outer periphery thereof.
  • a plurality of rollers 7 are suitably mounted on the annular member 6 to make rolling engagement with the guide surface of the annular guide rail 21 so that the annular member 6 is rotatable relative to the frame member 5 fixed to the caterpillar.
  • a pair of hydraulic jacks 9 are pivoted at one end thereof to the frame member 5 for actuating the ratchet 6'.
  • a pawl 8 engaging the ratchet 6' is mounted at the free end of the piston rod of each hydraulic jack 9.
  • a cylindrical member 13 is disposed within the frame member 5 and is formed thereinside with a substantially drum-shaped internal space having at its upper half an upwardly tapered inner peripheral surface portion 130 diverging gradually upwardly toward the upper open end and at its lower half a downwardly tapered inner peripheral surface portion 13b diverging gradually downwardly toward the lower open end.
  • the cylindrical member 13 is connected at the upper end thereof to the outer end of the piston rods of a plurality of hydraulic jacks 14 so that it is vertically movable within the frame member 5.
  • three hydraulic jacks 14 are illustrated by way of example and these hydraulic jacks 14 depend from the lower surface of the annular member 6 for causing the vertical movement of the cylindrical member 13 relative to the frame member 5.
  • a plurality of distortion preventing bars depend similarly from the lower surface of the annular member 6 within the frame member 5 by being secured at the upper end thereof to such surface.
  • the hydraulic jacks 12 are mounted on the outer periphery of the cylindrical member 13 in 120 spaced apart relation at positions substantially middle of the vertical height of the cylindrical member 13.
  • a pair of piston rods extend in opposite directions from a piston 22 and are pivoted at the free end to one end of a pair of levers 23 respectively.
  • Each pair of levers 23 are pivoted at a middle portion thereof to the upper and lower ends of the cylindrical member 13 and at the other end thereof to the lower and upper ends ofa pair of wedges 10 and 11 respectively, as seen in FIG. 2.
  • wedges 10 and 11 There are three pairs of such wedges 10 and 11 corresponding to the number of the hydraulic jacks 12, and these wedges 10 and 11 are provided with a tapered outer peripheral surface for intimate engagement with the downwardly and upwardly tapered inner peripheral surface portions 13b and 13a respectively of the cylindrical member 13.
  • the wedges l0 and 11 are serrated at their inner peripheral surface so as to releasably hold a pile.
  • the wedges 10 are used during driving of a pile into the earth, and the wedges 11 are used during drawing of the pile from the earth.
  • the wedges 11 and 10 can move upward and downward while engaging the upwardly tapered inner peripheral surface portion 13a and the downwardly tapered inner peripheral surface portion 13b respectively depending on the upward and downward movement of the pistons 22 in the hydraulic jacks 12.
  • a hollow cylindrical pile l is shown in FIG. 2.
  • This pile 1 has a sharply tapered lower end provided with an opening la, and a nozzle 4 extends obliquely downwardly through the end as shown in FIG. 2.
  • a highpressure water supply conduit 3 extends through the axis of the pile l to be connected at its lower end to the nozzle 4.
  • the pile 1 has an open lower end and a plurality of nozzles 4 are provided adjacent to the end to be connected to branch conduits of the high-pressure water supply conduit 3 extending through the axis of the pile 1.
  • An engine 16, an operators cab 17, a high-pressure water supply unit 18 and a hydraulic unit 19 are mounted on the caterpillar as shown in FIG.
  • a high-pressure water supply hose 2 is connected at one end thereof to the delivery port of the high-pressure water supply unit l8 and at the other end thereof to the upper end of the high-pressure water supply conduit 3.
  • the caterpillar In driving a pile 1 into the earth, the caterpillar is moved to a desired site and the pile l is inserted into the frame member 5. After determining the driving angle of the pile l, the hydraulic jacks 12 are actuated to urge the pistons 22 downward. The downward movement of the pistons 22 causes upward movement of the wedges 10 and the pile l is strongly held by the wedges 10. High-pressure water is then jetted from the nozzle 4 obliquely downward so as to loosen the underlying soil by the jet of high-pressure water. Subsequently, the hydraulic jacks 14 are actuated in the extending direction to cause downward movement of the cylindrical member 13. Therefore, the pile l is driven into the earth which has been preliminarily loosened by the jet of high-pressure water.
  • the pile l is rotated in a predetermined direction together with the means including the annular member 6, distortion preventing bars 15, cylindrical member 13 and wedges 10 by the operation of the hydraulic jacks 9.
  • the two hydraulic jacks 9 employed in the embodiment may be alternately actuated to cause continuous rotation of the annular member 6 or they may be simultaneously actuated to cause intermittent rotation of the annular member 6.
  • the pistons 22 in the hydraulic jacks 12 are restored to the original intermediate position to release the fastening force imparted to the pile l by the wedges 10, and the hydraulic jacks 14 are retracted to urge the cylindrical member 13 upward to restore same to the original position.
  • the hydraulic jacks 14 In drawing the pile 1 from the earth, the hydraulic jacks 14 are extended downward to urge the cylindrical member 13 to its lower position, and the pistons 22 of the hydraulic jacks 12 are urged upward to impart a strong fastening force to the pile l by the wedges 11. Then, the hydraulic jacks 14 are retracted to the original non-extended position and the hydraulic jacks 9 are actuated so that the pile 1 can be urged upward while being rotated around its axis. The operation above described is repeated to draw the pile 1 from the earth.
  • a jet of highpressure water fed from the obliquely downwardly directed nozzle 4 adjacent to the lower open end portion of the pile is utilized to preliminarily loosen the earth in the vicinity of the lower end of the pile 1, and after imparting a strong fastening force to the pile 1 by the wedges 11 or 10 by actuating the hydraulic jacks 12 depending on the pile driving or drawing operation, the hydraulic jacks l4 and 9 are actuated so as to drive or draw the pile 1 into or from the earth while rotating the pile 1 around its axis.
  • the pile 1 can be driven into the earth entirely noise-free and vibration-free due to the fact that the pile l is driven into the earth under rotation while softening the loosening the earth and sand by the jet of water under high pressure.
  • the apparatus is very stable because the frame member 5 is disposed at the center of the caterpillar.
  • the pile 1 can be driven, into and drawn from the earth very reliably due to the fact that the pile l is driven and drawn under rotation in the state in which the pile l is strongly fastened by a plurality of wedges and is prevented from undesirable distortion by the distortion preventing bars 15.
  • a pile driving and drawing apparatus comprising aframe member (5) securely mounted at a central portion of a caterpillar, an annular member (6) mounted to an upper annular supporting portion (20) of said frame member (5) so as to be rotatable relative to said frame member (5), said annular member (6) having a ratchet (6') formed on its outer peripheral surface, at least one hydraulic jack (9) pivoted to said frame member (5) so that said ratchet (6') can be engaged by a feed pawl (8) mounted at the free end of the piston rod of said hydraulic jack (9), a substantially cylindrical member (13) having a hollow inner space having an upwardly tapered inner peripheral surface portion (13a) and a downwardly tapered inner peripheral surface portion (l3b), a plurality of hydraulic jacks (14) depending from the lower surface of said annular member (6), said cylindrical member (13) being connected to the lower end of the piston rods of said hydraulic jacks (14), a plurality of wedges (1 1, l0) intimately engageable with

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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)
US00288630A 1971-11-08 1972-09-13 Pile driving and drawing apparatus Expired - Lifetime US3763654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46089287A JPS5117204B2 (enrdf_load_stackoverflow) 1971-11-08 1971-11-08

Publications (1)

Publication Number Publication Date
US3763654A true US3763654A (en) 1973-10-09

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US00288630A Expired - Lifetime US3763654A (en) 1971-11-08 1972-09-13 Pile driving and drawing apparatus

Country Status (3)

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US (1) US3763654A (enrdf_load_stackoverflow)
JP (1) JPS5117204B2 (enrdf_load_stackoverflow)
GB (1) GB1407496A (enrdf_load_stackoverflow)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891037A (en) * 1972-12-26 1975-06-24 Dale E Well Remotely operated seafloor coring and drilling method and system
US3964119A (en) * 1974-05-11 1976-06-22 Dr. -Ing. H.C.F. Porsche Aktiengesellschaft Support leg for bridges
US3992890A (en) * 1974-01-28 1976-11-23 Pynford Limited Method of forming foundations
WO1980002174A1 (en) * 1979-04-03 1980-10-16 Goudsche Machfab Bv A pipe clamp and a probing comprising a pipe clamp
US4248550A (en) * 1978-02-22 1981-02-03 Stahl-Und Apparatebau Hans Leffer Gmbh Pile extraction apparatus
US4398847A (en) * 1980-05-30 1983-08-16 Varitrac Ag Clamping device
FR2522344A1 (fr) * 1982-03-01 1983-09-02 Inst Gornogo Dela Sibirskogo O Organe de serrage d'un dispositif de percussion pneumatique pour l'enfoncement d'elements de tige dans le sol et pour leur extraction
EP0103283A3 (en) * 1982-09-13 1984-09-26 E.L.S.E. Edilizia Lavori Sottosuolo Estrazioni S.P.A. An apparatus for inserting a tool into the ground and continuously rotating it
US4614462A (en) * 1984-05-18 1986-09-30 Daido Concrete Kogyo Kabushiki Kaisha Rotation device for a foundation pile
US4659257A (en) * 1984-10-29 1987-04-21 Funderingstechnieken Verstraeten B.V. Method for making a hole in the ground, and hollow body open at the lower and upper sides and adapted for use in this method
EP0362424A1 (en) * 1988-10-05 1990-04-11 Nippon Sharyo Seizo Kabushiki Kaisha Casing driver
US4925345A (en) * 1989-02-10 1990-05-15 Powerlift Foundation Repair Building foundation stabilizing and elevating apparatus
EP0504506A1 (en) * 1991-03-18 1992-09-23 Fang, Harvard Hydraulic pressure pile driver
US5205673A (en) * 1991-07-18 1993-04-27 Power Lift Foundation Repair Foundation slab support and lifting apparatus
US5253958A (en) * 1993-02-08 1993-10-19 Serge Bellemare Device for driving a stake into the ground
US5291953A (en) * 1993-01-19 1994-03-08 Mitchhart Joel W Adjustable square post driver assembly
US5377770A (en) * 1993-03-23 1995-01-03 Ritter; Lester L. Apparatus for improving impact tool lubrication
US5772363A (en) * 1996-12-05 1998-06-30 Larson; John G. Piling remover
US5791820A (en) * 1995-09-15 1998-08-11 Rempel; Jake Method and apparatus for implanting screw-in pilings or anchors in the ground
US5811741A (en) * 1997-03-19 1998-09-22 Coast Machinery, Inc. Apparatus for placing geophones beneath the surface of the earth
WO1999031325A1 (en) * 1997-12-12 1999-06-24 Airi Raunisto A device performing hammering
US6152654A (en) * 1999-06-21 2000-11-28 Richard D. Ruiz, Llc Apparatus for mounting power cylinders for driving piers
US6447209B1 (en) 1999-06-21 2002-09-10 Richard D. Ruiz, Llc Apparatus for mounting power cylinders for driving piers
WO2003097945A1 (en) * 2002-05-17 2003-11-27 Raunisto Yrjoe A device producing hammering
RU2234571C1 (ru) * 2002-11-25 2004-08-20 Кубанский государственный аграрный университет Устройство для погружения в грунт электродов заземления и других подобных элементов
RU2281594C1 (ru) * 2005-04-11 2006-08-10 Федеральное государственное образовательное учреждение высшего профессионального образования Кубанский государственный аграрный университет Переносное заземляющее устройство
US20100006168A1 (en) * 2008-07-10 2010-01-14 Daiei Sangyo Co., Ltd. Jet-mixing method and jet-mixing apparatus
US20110200398A1 (en) * 2005-12-23 2011-08-18 Vincenzo Collina Foundation Pile Driver
US20110225855A1 (en) * 2009-09-30 2011-09-22 Scruggs Donald E Positioning and rotating apparatus for interring screw-in and self digging burial containers
US20150023739A1 (en) * 2012-04-20 2015-01-22 Tiroler Rohre GmbH Drive point for a pile
US20180298579A1 (en) * 2015-07-23 2018-10-18 Qingdao Jingli Engineering Co,. Ltd. Multifunctional wall clamping device of static piling machine
SE1830018A1 (sv) * 2018-01-17 2019-07-18 Berg & Betongfoerstaerkning Ab Förfarande för pålning, pålningsrigg för genomförande av förfarandet samt påle för användning i samband därmed

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222307A (en) * 1975-08-14 1977-02-19 Uemura Koichi Method of and apparatus for penetrating underground penetration member
JPS535807A (en) * 1976-07-06 1978-01-19 Saito Denki Kouji Kk Pile embedding and extracting apparatus
JPS54101777U (enrdf_load_stackoverflow) * 1977-12-27 1979-07-18
DE3535091A1 (de) * 1985-10-02 1987-04-16 Thyssen Nordseewerke Gmbh Eisbrechendes schiff
RU2529354C2 (ru) * 2012-08-08 2014-09-27 Владимир Викторович Бриж Способ подъема и подачи сваи в зев зажима сваепогружателя и устройство для его осуществления
JP6536292B2 (ja) * 2015-08-28 2019-07-03 株式会社大林組 ねじ締め装置及び管連結体の製造方法
CN113373928B (zh) * 2021-06-02 2022-08-26 国网湖北省电力有限公司襄阳供电公司 一种可矫正倾斜的沉浸式加固桩湿地安装装置
CN113931184A (zh) * 2021-11-08 2022-01-14 山河智能装备股份有限公司 一种搅拌静力压桩机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1293693A (en) * 1918-07-15 1919-02-11 Joseph Burns Process for sinking reinforced-concrete piles.
US2830788A (en) * 1954-09-10 1958-04-15 United States Steel Corp Pushing and pulling apparatus
US3096075A (en) * 1960-12-09 1963-07-02 Brown Oil Tools Hydraulic pipe snubber for oil wells

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1293693A (en) * 1918-07-15 1919-02-11 Joseph Burns Process for sinking reinforced-concrete piles.
US2830788A (en) * 1954-09-10 1958-04-15 United States Steel Corp Pushing and pulling apparatus
US3096075A (en) * 1960-12-09 1963-07-02 Brown Oil Tools Hydraulic pipe snubber for oil wells

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891037A (en) * 1972-12-26 1975-06-24 Dale E Well Remotely operated seafloor coring and drilling method and system
US3992890A (en) * 1974-01-28 1976-11-23 Pynford Limited Method of forming foundations
US3964119A (en) * 1974-05-11 1976-06-22 Dr. -Ing. H.C.F. Porsche Aktiengesellschaft Support leg for bridges
US4248550A (en) * 1978-02-22 1981-02-03 Stahl-Und Apparatebau Hans Leffer Gmbh Pile extraction apparatus
WO1980002174A1 (en) * 1979-04-03 1980-10-16 Goudsche Machfab Bv A pipe clamp and a probing comprising a pipe clamp
US4398847A (en) * 1980-05-30 1983-08-16 Varitrac Ag Clamping device
FR2522344A1 (fr) * 1982-03-01 1983-09-02 Inst Gornogo Dela Sibirskogo O Organe de serrage d'un dispositif de percussion pneumatique pour l'enfoncement d'elements de tige dans le sol et pour leur extraction
EP0103283A3 (en) * 1982-09-13 1984-09-26 E.L.S.E. Edilizia Lavori Sottosuolo Estrazioni S.P.A. An apparatus for inserting a tool into the ground and continuously rotating it
US4614462A (en) * 1984-05-18 1986-09-30 Daido Concrete Kogyo Kabushiki Kaisha Rotation device for a foundation pile
US4659257A (en) * 1984-10-29 1987-04-21 Funderingstechnieken Verstraeten B.V. Method for making a hole in the ground, and hollow body open at the lower and upper sides and adapted for use in this method
EP0362424A1 (en) * 1988-10-05 1990-04-11 Nippon Sharyo Seizo Kabushiki Kaisha Casing driver
US4925345A (en) * 1989-02-10 1990-05-15 Powerlift Foundation Repair Building foundation stabilizing and elevating apparatus
EP0504506A1 (en) * 1991-03-18 1992-09-23 Fang, Harvard Hydraulic pressure pile driver
US5205673A (en) * 1991-07-18 1993-04-27 Power Lift Foundation Repair Foundation slab support and lifting apparatus
US5291953A (en) * 1993-01-19 1994-03-08 Mitchhart Joel W Adjustable square post driver assembly
US5253958A (en) * 1993-02-08 1993-10-19 Serge Bellemare Device for driving a stake into the ground
US5377770A (en) * 1993-03-23 1995-01-03 Ritter; Lester L. Apparatus for improving impact tool lubrication
US5791820A (en) * 1995-09-15 1998-08-11 Rempel; Jake Method and apparatus for implanting screw-in pilings or anchors in the ground
US5772363A (en) * 1996-12-05 1998-06-30 Larson; John G. Piling remover
US5811741A (en) * 1997-03-19 1998-09-22 Coast Machinery, Inc. Apparatus for placing geophones beneath the surface of the earth
WO1999031325A1 (en) * 1997-12-12 1999-06-24 Airi Raunisto A device performing hammering
US6152654A (en) * 1999-06-21 2000-11-28 Richard D. Ruiz, Llc Apparatus for mounting power cylinders for driving piers
US6447209B1 (en) 1999-06-21 2002-09-10 Richard D. Ruiz, Llc Apparatus for mounting power cylinders for driving piers
WO2003097945A1 (en) * 2002-05-17 2003-11-27 Raunisto Yrjoe A device producing hammering
US20050199405A1 (en) * 2002-05-17 2005-09-15 Yrjo Raunisto Device producing hammering
RU2234571C1 (ru) * 2002-11-25 2004-08-20 Кубанский государственный аграрный университет Устройство для погружения в грунт электродов заземления и других подобных элементов
RU2281594C1 (ru) * 2005-04-11 2006-08-10 Федеральное государственное образовательное учреждение высшего профессионального образования Кубанский государственный аграрный университет Переносное заземляющее устройство
US20110200398A1 (en) * 2005-12-23 2011-08-18 Vincenzo Collina Foundation Pile Driver
US8608409B2 (en) * 2005-12-23 2013-12-17 So.L.E.S.-Societa' Lavori Edili E Serbatoi S.P.A. Foundation pile driver
US7874766B2 (en) * 2008-07-10 2011-01-25 Daiei Sangyo Co., Ltd. Jet-mixing method and jet-mixing apparatus
US20100006168A1 (en) * 2008-07-10 2010-01-14 Daiei Sangyo Co., Ltd. Jet-mixing method and jet-mixing apparatus
US20110225855A1 (en) * 2009-09-30 2011-09-22 Scruggs Donald E Positioning and rotating apparatus for interring screw-in and self digging burial containers
US8225537B2 (en) 2009-09-30 2012-07-24 Scruggs Donald E Positioning and rotating apparatus for interring screw-in and self digging burial containers
US20150023739A1 (en) * 2012-04-20 2015-01-22 Tiroler Rohre GmbH Drive point for a pile
US9725865B2 (en) * 2012-04-20 2017-08-08 Tiroler Rohre GmbH Drive point for a pile
US20180298579A1 (en) * 2015-07-23 2018-10-18 Qingdao Jingli Engineering Co,. Ltd. Multifunctional wall clamping device of static piling machine
US10604905B2 (en) * 2015-07-23 2020-03-31 Qingdao Jingli Engineering Co., Ltd. Multifunctional wall clamping device of static piling machine
SE1830018A1 (sv) * 2018-01-17 2019-07-18 Berg & Betongfoerstaerkning Ab Förfarande för pålning, pålningsrigg för genomförande av förfarandet samt påle för användning i samband därmed

Also Published As

Publication number Publication date
JPS4854709A (enrdf_load_stackoverflow) 1973-08-01
GB1407496A (en) 1975-09-24
JPS5117204B2 (enrdf_load_stackoverflow) 1976-06-01

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