EP1069244A2 - Méthode et dispositif pour contrôler un vibrateur de fond de trou - Google Patents

Méthode et dispositif pour contrôler un vibrateur de fond de trou Download PDF

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Publication number
EP1069244A2
EP1069244A2 EP00114397A EP00114397A EP1069244A2 EP 1069244 A2 EP1069244 A2 EP 1069244A2 EP 00114397 A EP00114397 A EP 00114397A EP 00114397 A EP00114397 A EP 00114397A EP 1069244 A2 EP1069244 A2 EP 1069244A2
Authority
EP
European Patent Office
Prior art keywords
rotation
leader
vibrator
unbalanced mass
strand
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
EP00114397A
Other languages
German (de)
English (en)
Other versions
EP1069244B1 (fr
EP1069244A3 (fr
Inventor
J. Dipl.-Ing. Berg
J. Dr. Köcher
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.)
Keller Grundbau GmbH
Original Assignee
Keller Grundbau GmbH
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 Keller Grundbau GmbH filed Critical Keller Grundbau GmbH
Publication of EP1069244A2 publication Critical patent/EP1069244A2/fr
Publication of EP1069244A3 publication Critical patent/EP1069244A3/fr
Application granted granted Critical
Publication of EP1069244B1 publication Critical patent/EP1069244B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/054—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil involving penetration of the soil, e.g. vibroflotation

Definitions

  • the invention relates to a method for compacting soils by means of a deep vibrator that goes from one to a vertical
  • the unbalanced mass encircling the longitudinal axis is excited and lowered into the ground and pulled out of it again.
  • the Invention a deep vibrator for performing the method with an elongated bomb-shaped housing with a longitudinal axis and a motor-driven coaxially mounted in the housing Axis of rotation and an unbalanced mass rotating with the axis of rotation.
  • the compaction of uneven soils (gravel and sand) by means of Deep vibrators at great depths and in any thickness has been tried and tested.
  • the application of the method to depths of 50 Meter is already running. Depths of 70 meters are targeted.
  • the vibrator work is carried out by driving an unbalanced mass in the vertically suspended vibrator housing by a arranged above driven electric or hydraulic motor becomes.
  • the deep vibrator is made by screwing on a pipe string, in which the supply lines run (electricity, water, Hydraulic oil), prepared for the desired depth. That so formed aggregate is on an excavator or a special Carrier with vertical leader held over a steel cable and guided.
  • the swinging and rotating suspension point is located at the top of the pipe string.
  • the deep vibrator is articulated by means of an articulated coupling.
  • the deep vibrator should remain at rest at the articulation point and a circular vibration with the vibrator tip below exercise.
  • the movement of the vibrator is thus one Cone wrapped with the tip at the top.
  • the movement of the Vibrator is determined by the frequency of rotation and the size of the unbalanced mass determines and does not necessarily correspond to the above Ideal case. Due to the rotation of the unbalanced mass, it happens a rotating torque on the vibrator housing, the to a twist of the vibrator and the pipe string and thus leads to the leader. This causes the supply lines to twist, which can be pinched off or off can tear out their fittings. This phenomenon is so far by attaching longitudinal outer swords on Housing of the deep vibrator or at least through the longitudinal one outside pipes not adequately counteracted been. Such means also increase the resistance to penetration of the deep vibrator disadvantageously.
  • the soil is compacted from bottom to top. To He will lower the deep vibrator to the intended final depth either pulled up continuously or gradually in increments of 20 to 100 cm, one at each level Stops for 20 to 60 seconds.
  • the compaction of the soil is naturally associated with a volume reduction that a funnel formation and concentric setting cracks around the funnel on the surface of the site and on an incline the terrain surface further points towards the funnel.
  • the object of the present invention is a method and to provide a deep vibrator with which the prevents malfunctions and the penetration behavior of the deep vibrator can be improved.
  • the solution to this lies in a process according to which the Unbalanced mass is driven with alternating direction of rotation.
  • the direction of rotation can be changed at a fixed time or depending on the rotation of the deep vibrator towards the leader.
  • the corresponding rotation can be done with suitable contactless transducers can be detected.
  • a suitable deep vibrator for carrying out the process is characterized in that it is a housing of purely rotationally symmetrical External shape and a reversible drive for has the unbalanced mass.
  • the deep vibrator gets an improved penetration behavior.
  • the fact that it is due to the reaction moment now come to a faster twisting in the borehole can, is not critical, since monitoring means for the twist angle of the deep vibrator compared to the leader and a preferably automated reversal of the damage-free Operation ensures.
  • Unbalance mass changes the direction of rotation of the reverse torque, so that the rotation that has occurred is canceled and the then occurring rotation in the opposite direction in repetitive Way is controlled and limited.
  • the effective unbalance mass remains unchanged.
  • Figure 1 is a torpedo-shaped deep vibrator according to the invention 11, the cross section of which is purely cylindrical and which shows a conical tip 12. At the top is a movable coupling 13 is provided to which a linkage section 14 connects.
  • a deep vibrator 21 according to FIG State of the art shown in addition to the matching Features of a conical tip 22, a coupling 23 and a linkage section 24, lateral line guides 25, 26 and recognize radially projecting swords 27, 28 placed thereover lets counteract a rotation of the vibrator in the ground.
  • the swords 27, 28 have the shape of radially projecting guide surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Earth Drilling (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP00114397A 1999-07-05 2000-07-05 Méthode pour contrôler un vibrateur de fond de trou Expired - Lifetime EP1069244B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19930885A DE19930885C2 (de) 1999-07-05 1999-07-05 Verfahren zur Steuerung eines Tiefenrüttlers
DE19930885 1999-07-05

Publications (3)

Publication Number Publication Date
EP1069244A2 true EP1069244A2 (fr) 2001-01-17
EP1069244A3 EP1069244A3 (fr) 2002-07-03
EP1069244B1 EP1069244B1 (fr) 2005-09-28

Family

ID=7913657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114397A Expired - Lifetime EP1069244B1 (fr) 1999-07-05 2000-07-05 Méthode pour contrôler un vibrateur de fond de trou

Country Status (3)

Country Link
EP (1) EP1069244B1 (fr)
AT (1) ATE305537T1 (fr)
DE (1) DE19930885C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992742A3 (fr) * 2007-05-16 2011-07-27 Gebr. van Leeuwen Harmelen B.V. Installation d'une fondation par vibration et liquéfaction
CN103439909A (zh) * 2013-06-23 2013-12-11 四川海普工控技术有限公司 一种避免振冲器反复停机的监控方法
US9494006B2 (en) 2012-08-14 2016-11-15 Smith International, Inc. Pressure pulse well tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10232314A1 (de) * 2002-07-17 2004-02-05 Bauer Spezialtiefbau Gmbh Vorrichtung und Verfahren zum Verdichten von Böden und zur Herstellung von säulenförmigen Körpern im Boden mit Hilfe von Tiefenrüttlern
DE102010029010A1 (de) * 2010-04-16 2011-10-20 Alexander Degen Tiefenrüttleranordnung mit Schneidplatte
CN104358248B (zh) * 2014-11-13 2016-04-27 中国水电基础局有限公司 振冲碎石桩机的伸缩式导杆
DE102016120382A1 (de) 2016-10-26 2018-04-26 Gmb Gmbh Methode, Prinzip, Steuerung und Ausrüstung zur Durchführung der selbsttätigen Verdichtung von mehrphasigen Korngemischen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629485A1 (de) 1975-07-07 1977-01-20 Kooten Bv V Bodenvibrierer
DE2948403A1 (de) 1979-12-01 1981-06-04 Fritz Pollems KG Spezialtiefbau, 1000 Berlin Vibrator zur verdichtung von erdreich
DE3205099A1 (de) 1981-11-28 1983-06-09 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Schlagwerk fuer einen tiefenruettler zum verdichten von erdreich

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3105611C2 (de) * 1981-02-16 1984-03-29 Zoltan Thomas Dipl.-Ing. 7640 Kehl Egey Verfahren und Vorrichtung zum Tiefverdichten
DE69013136D1 (de) * 1990-01-11 1994-11-10 Seiko Kogyo K K Doppelrohreinrichtung zum Bohren und Kneten und Methode zur Verbesserung von Fundamentgrund mit dieser Doppelrohreinrichtung zum Bohren und Kneten.
DE19628769C2 (de) * 1996-07-17 1998-06-10 Bul Sachsen Gmbh Verfahren und Einrichtung zur Tiefenverdichtung von bindigem und nichtbindigem Verdichtungsgut

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629485A1 (de) 1975-07-07 1977-01-20 Kooten Bv V Bodenvibrierer
DE2948403A1 (de) 1979-12-01 1981-06-04 Fritz Pollems KG Spezialtiefbau, 1000 Berlin Vibrator zur verdichtung von erdreich
DE3205099A1 (de) 1981-11-28 1983-06-09 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Schlagwerk fuer einen tiefenruettler zum verdichten von erdreich

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1992742A3 (fr) * 2007-05-16 2011-07-27 Gebr. van Leeuwen Harmelen B.V. Installation d'une fondation par vibration et liquéfaction
US9494006B2 (en) 2012-08-14 2016-11-15 Smith International, Inc. Pressure pulse well tool
CN103439909A (zh) * 2013-06-23 2013-12-11 四川海普工控技术有限公司 一种避免振冲器反复停机的监控方法

Also Published As

Publication number Publication date
DE19930885A1 (de) 2001-02-01
DE19930885C2 (de) 2003-04-24
ATE305537T1 (de) 2005-10-15
EP1069244B1 (fr) 2005-09-28
EP1069244A3 (fr) 2002-07-03

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