EP0135479B1 - Vorrichtung zum Rammen und Ziehen - Google Patents

Vorrichtung zum Rammen und Ziehen Download PDF

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Publication number
EP0135479B1
EP0135479B1 EP84810448A EP84810448A EP0135479B1 EP 0135479 B1 EP0135479 B1 EP 0135479B1 EP 84810448 A EP84810448 A EP 84810448A EP 84810448 A EP84810448 A EP 84810448A EP 0135479 B1 EP0135479 B1 EP 0135479B1
Authority
EP
European Patent Office
Prior art keywords
reaction mass
cylinder
spring
driving
pressure
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
Application number
EP84810448A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0135479A1 (de
Inventor
Dionizy Simson
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.)
Simson und Partner
SIMSON AND PARTNER
Original Assignee
Simson und Partner
SIMSON AND PARTNER
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 Simson und Partner, SIMSON AND PARTNER filed Critical Simson und Partner
Priority to AT84810448T priority Critical patent/ATE31334T1/de
Publication of EP0135479A1 publication Critical patent/EP0135479A1/de
Application granted granted Critical
Publication of EP0135479B1 publication Critical patent/EP0135479B1/de
Expired 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
    • E02D7/18—Placing by vibrating
    • 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

Definitions

  • the present invention relates to a device according to the preamble of claim 1 for driving in and pulling out ramming material, such as piles or sheet piles, into or out of the ground by introducing forces acting periodically in the longitudinal direction on the ramming material (for example in accordance with FR-A-1 544841) .
  • ramming material such as piles or sheet piles
  • a device for driving in and pulling elongated pile material by means of periodically acting forces in the longitudinal direction is known (e.g. DE-A-2 732 934 or DE-A-1 634 305). Centrifugal forces from rotating unbalanced masses, which are driven electrically or hydraulically, or reaction forces from masses moved hydraulically in translation are used here. Such devices have the disadvantage that the reaction mass is accelerated and braked again by the pressure medium in each cycle. As a result, the output power remains relatively small compared to the drive power.
  • driving the reaction mass by means of the pressure medium alone i.e.
  • Devices are also known (e.g. according to CH-PS 594111) in which a mass is supported on springs and excited to vibrate by centrifugal forces, the excitation frequency being approximately the same as the natural frequency of the vibrating mass or being in resonance with it.
  • the vibrating mass bounces against a stop firmly connected to the pile, and the pile is set in motion in this way on the one hand by vibrations that are transmitted via the suspension and on the other hand into or out of the soil by the directional blows. Soil driven out.
  • Such devices have the disadvantage that the beat frequency can only be achieved by converting the device, i.e. can be changed to a different frequency by changing the springs and imbalances. The fact that the desired frequency must be a harmonic relative to the unbalance speed is also disturbing.
  • the attunement achieved is very unstable.
  • the energy requirement changes depending on the depth of penetration of the material to be driven. If the depth of penetration is small, it is more advantageous to work with high-frequency vibration, the noise being low here too.
  • the lateral friction in the pile increases, and the mass of the moving soil also increases. In this case, larger energy pulses are more effective.
  • the necessary ram depth cannot be achieved without impact, or the vibration devices required for this take on considerable dimensions, whereby the drive power can be hundreds of kW.
  • Ramming in rolling soil can be carried out more advantageously by means of vibration, in cohesive soil by means of impact or impact vibration. The power used is not used optimally.
  • the present invention has for its object to provide a device according to the preamble of claim 1, in which energy can be saved quite significantly.
  • the pile 5 is vibrated in suitable proportions, the frequency and thus the amplitude being able to be continuously adapted to the optimal pile conditions, with constant power, by influencing the number of pulses of the excitation force and simultaneously changing the spring constant, so that this brings the natural frequency of the reaction mass 1 into harmony with the excitation frequency.
  • the dead weight of the reaction mass 1 is compensated for so that, with the sum of the spring constants remaining the same, the preload pressure of the suspension is distributed such that the reaction mass 1 remains suspended between the two stops 4.
  • a control pulse is triggered, which by briefly switching on the pressure source removes the vibrating reaction mass 1 from the stop 4.
  • the device With increasing ramming resistance, the device is put into striking operation in that the reaction mass 1 from the suspended state between the two stops 4 is pressed onto one of the two stops 4 with a relatively small force, in this way that the control device, which causes the floating of the Reaction mass 1 monitored, switched off, and the bias pressure on both pneumatic springs 7 is changed so that the spring constant sum remains the same, but there is a slight difference in force.
  • the impact frequency and impact energy can be changed at will while the power remains the same and can be adapted to the driving conditions.
  • the operation of the device is briefly the following:
  • the reaction mass 1 is mounted on pneumatic springs 7, the spring constant of which is adapted to the reaction mass 1 and the excitation frequency so that the reaction mass 1 oscillates at the natural frequency.
  • the energy supplied in the form of a pulsating medium flow serves to cancel out the friction losses and is conducted to the pile 5 in the form of vibration or impact.
  • the reaction mass 1 does not have to be braked by the drive and accelerated anew each time it changes direction by means of pressure medium, since it vibrates by itself, thereby achieving considerable energy savings.
  • the reaction mass is accelerated in the first phase by two forces, namely by the medium pressure from the drive and by the pretensioned spring 7.
  • the pretensioning force of the spring 7 is reduced, and in the event that it the sign changes, it counteracts the drive pressure, the positive masses are accelerated in the same direction in which the stroke is directed.
  • the device according to the exemplary embodiment shown in FIGS. 2 and 3 has a frame 2 which surrounds the reaction mass 1 from all sides and forms stops 4 at both ends.
  • Axially arranged on the stops 4 are two stepped pistons 3, which are penetrated on the one hand by connecting lines 23 and 24, through which the inner cylinder spaces 30 communicate with a control valve 15 and the springs 7.
  • the stepped pistons from the two pressure medium channels 25 and 26, i.e. the inlet 25 and the outlet 26, which communicate with the outer cylinder spaces 31.
  • the frame 2 has a clamping device 6, by means of which the entire device is connected to the pile 5.
  • a suspension eye 19 with shock absorption 20 is attached to the top of the hammer frame 2.
  • roller-shaped reaction mass 1 there are axial stepped bores at both ends, which form cylinders and at the same time also slide and guide surfaces and two cylinder spaces 30 and 31, respectively.
  • the drive consists of a pressure and current-controlled pressure source 18, a current controller 12 for the pulsator drive, a flow divider 14, a control valve 15, an adjustable pressure differential valve 16 and an also adjustable pressure control valve 17 for controlling the suspension.
  • Elastic lines connect the drive unit to the device, the outlet 26 being provided with a filter 13.
  • the drive unit can form a separate unit equipped with its own drive motor or, which is more advantageous, can be integrated into the power hydraulics of a crane or excavator.
  • FIG. 4 shows a device with two reaction masses 1. This differs from a device provided with only one reaction mass 1 in that it has three-stage cylinder / piston units 3.
  • the additional cylinders in the two reaction masses 1 are connected to one another in a cross shape, each line being connected to the pressure medium inlet 25 by a check valve 28.
  • the lines and the cylinder spaces are filled with pressure medium via the check valves 28.
  • the cross lines 29 are each equipped with a pressure relief valve 27, which are connected to the discharge line 26.
  • pressure medium can flow through the check valves 28; if the synchronization is lost, the excess oil is pressed out of one of the cross lines 29 via the pressure relief valves 27 into the drain.
  • the set overflow pressure is higher than the working pressure of the drive, and both pressure relief valves 27 can also be regarded as safety valves.
  • the pressure difference valve 16 has the task of generating a pressure difference between the springs 7. This is necessary for a position of the ramming device that deviates from the horizontal.
  • the weight of the reaction mass 1 must be balanced. During impact operation, the contact force of the reaction mass 1 against the stop 4 and the direction of impact are determined by the pressure difference via this valve 16.
  • a hydraulic accumulator 11 is installed in the immediate vicinity of the pulse generator 10 and has the task of smoothing the pressure pulsation of the pressure medium under high pressure.
  • the natural frequency of a mass depends on the mass size and the spring constant of the spring on which the mass 1 is mounted:
  • the natural frequency can be influenced by changing the spring constant.
  • the pressure generated depends on the volume by which the gas bubble is reduced

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Telephone Function (AREA)
  • Control Of Multiple Motors (AREA)
EP84810448A 1983-09-19 1984-09-14 Vorrichtung zum Rammen und Ziehen Expired EP0135479B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84810448T ATE31334T1 (de) 1983-09-19 1984-09-14 Vorrichtung zum rammen und ziehen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH508183 1983-09-19
CH5081/83 1983-09-19

Publications (2)

Publication Number Publication Date
EP0135479A1 EP0135479A1 (de) 1985-03-27
EP0135479B1 true EP0135479B1 (de) 1987-12-09

Family

ID=4287620

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84810448A Expired EP0135479B1 (de) 1983-09-19 1984-09-14 Vorrichtung zum Rammen und Ziehen

Country Status (5)

Country Link
US (1) US4650008A (enrdf_load_stackoverflow)
EP (1) EP0135479B1 (enrdf_load_stackoverflow)
JP (1) JPS60226916A (enrdf_load_stackoverflow)
AT (1) ATE31334T1 (enrdf_load_stackoverflow)
DE (1) DE3468051D1 (enrdf_load_stackoverflow)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523165A1 (de) * 1985-06-28 1987-01-08 Mueller Ludwig & Soehne Vorrichtung zum rammen oder einpressen sowie zum ziehen von rammkoerpern
NL8800632A (nl) * 1988-03-15 1989-10-02 Ihc Holland Nv Werkwijze voor het aandrijven van een hydraulisch onderwater werktuig.
US5210918A (en) * 1991-10-29 1993-05-18 Wozniak Walter E Pneumatic slide hammer
DE19731732C2 (de) * 1997-07-23 2001-02-22 Wacker Werke Kg Schlagvorrichtung zum Freischlagen festgeklemmter Gegenstände
US6378951B1 (en) * 1997-07-23 2002-04-30 Hydroacoustics, Inc. Vibratory pavement breaker
US6058632A (en) * 1997-11-07 2000-05-09 Hawkins; Peter Arthur Taylor Tool holder with percussion member
GB2344547B (en) 1998-11-14 2002-12-18 Aldridge Piling Equipment Actuator apparatus
US6981558B2 (en) * 2001-05-02 2006-01-03 Wacker Construction Equipment Ag Controller for an unbalanced mass adjusting unit of a soil compacting device
US6997269B1 (en) * 2003-03-26 2006-02-14 Snap-On Incorporated Attachment for impact hammer
DE102004042369A1 (de) * 2004-09-01 2006-07-13 Eurodrill Gmbh Bodenbearbeitungsgerät und Verfahren zum Einbringen eines Arbeitselementes in den Boden
US7080958B1 (en) 2005-04-27 2006-07-25 International Construction Equipment, Inc. Vibratory pile driver/extractor with two-stage vibration/tension load suppressor
AT502044B1 (de) * 2005-10-27 2007-01-15 Neumag Saurer Austria Gmbh Vorrichtung zum nadeln eines vlieses
CA2744187C (en) 2008-11-21 2018-07-17 Hadar Magali Rebound-effector producing back and forth oscillating forces
EP2194191A1 (en) * 2008-12-04 2010-06-09 Fistuca B.V. A vibratory mechanism for a pile driver and a pile driver
JP5167302B2 (ja) * 2010-04-01 2013-03-21 新日鐵住金株式会社 脱気工程を含む鋼杭打設工法
US9249551B1 (en) 2012-11-30 2016-02-02 American Piledriving Equipment, Inc. Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles
US9371624B2 (en) 2013-07-05 2016-06-21 American Piledriving Equipment, Inc. Accessory connection systems and methods for use with helical piledriving systems
AU2015391736A1 (en) * 2015-04-17 2017-11-02 Junttan Oy A method for pile-driving
US10392871B2 (en) 2015-11-18 2019-08-27 American Piledriving Equipment, Inc. Earth boring systems and methods with integral debris removal
US9957684B2 (en) 2015-12-11 2018-05-01 American Piledriving Equipment, Inc. Systems and methods for installing pile structures in permafrost
US11338326B2 (en) * 2019-04-07 2022-05-24 Resonance Technology International Inc. Single-mass, one-dimensional resonant driver
DK4214366T3 (da) * 2020-09-17 2025-08-18 Cape Holland Holding B V Fastspændingsindretning til en vibrationsindretning til indføring af et fundamentselement, vibrationsindretning, som er forsynet dermed, og fremgangsmåde dertil
CA3153781A1 (en) 2021-03-31 2022-09-30 American Piledriving Equipment, Inc. Segmented ram systems and methods for hydraulic impact hammers

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1169664A (fr) * 1957-02-23 1959-01-05 Perfectionnements au fonçage et à l'arrachage de pieux, palplanches, tubages et analogues
US3004389A (en) * 1959-04-25 1961-10-17 Muller Ludwig Device for varying the frequency of a vibration exciter
GB1057248A (en) * 1962-10-17 1967-02-01 Christiani & Nielsen Ltd Improvements in the driving and extraction of piles and/or like structures
GB1158240A (en) * 1965-05-24 1969-07-16 Gen Dynamics Corp 62 1156824 Vibratory Impact Tool.
FR1544841A (fr) * 1967-09-28 1968-11-08 Vide Soc Gen Du Perfectionnements aux systèmes de suspension, des machines hydrauliques vibrantes, notamment pour le fonçage des pieux
FR1560409A (enrdf_load_stackoverflow) * 1968-01-03 1969-03-21
US3745885A (en) * 1971-10-07 1973-07-17 Continental Oil Co Hydraulic vibrator
US4026193A (en) * 1974-09-19 1977-05-31 Raymond International Inc. Hydraulically driven hammer system
CH594111A5 (enrdf_load_stackoverflow) * 1975-07-14 1977-12-30 Rohrer Marti Ulrich Ag
DE2732934C2 (de) * 1977-07-21 1985-09-12 Bomag-Menck GmbH, 5407 Boppard Verfahren und Vorrichtung zum Rammen und Ziehen
US4178838A (en) * 1977-11-03 1979-12-18 Conoco, Inc. Oil porting system for dual cylinder vibrator
DE2917830A1 (de) * 1979-05-03 1980-11-06 Tuenkers Maschinenbau Gmbh Hydraulischer impulsvibrationsbaer
JPS5920815B2 (ja) * 1980-05-23 1984-05-15 十三男 鈴木 油水圧圧入圧出装置

Also Published As

Publication number Publication date
ATE31334T1 (de) 1987-12-15
JPH0470445B2 (enrdf_load_stackoverflow) 1992-11-11
JPS60226916A (ja) 1985-11-12
EP0135479A1 (de) 1985-03-27
US4650008A (en) 1987-03-17
DE3468051D1 (en) 1988-01-21

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