EP1069244B1 - Verfahren zur Steuerung eines Tiefenrüttlers - Google Patents
Verfahren zur Steuerung eines Tiefenrüttlers Download PDFInfo
- Publication number
- EP1069244B1 EP1069244B1 EP00114397A EP00114397A EP1069244B1 EP 1069244 B1 EP1069244 B1 EP 1069244B1 EP 00114397 A EP00114397 A EP 00114397A EP 00114397 A EP00114397 A EP 00114397A EP 1069244 B1 EP1069244 B1 EP 1069244B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- vibrator
- rotation
- deep
- leader
- pipe
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 title description 2
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 3
- 239000010959 steel Substances 0.000 claims abstract description 3
- 239000002689 soil Substances 0.000 claims description 6
- 238000005056 compaction Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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 of a circulating about a vertical longitudinal axis imbalance mass energized lowered into the ground and pulled out of this again.
- deep vibrator for carrying out the method are with an elongated bomb-shaped housing with a longitudinal axis and a coaxially mounted in the housing motor-driven Rotary axis and equipped with the rotation axis circulating imbalance mass.
- the compacting of rolling soil (gravels and sands) by means of deep vibrators in large Depths and in any thickness is tested.
- the application of the procedure to depths of 50 meters is already running. Depths of 70 meters are desired.
- the vibrator work is done by driving an imbalance mass in vertically suspended Vibrator housing by an electric or hydraulic motor located above is driven.
- the deep vibrator is by screwing a pipe string, in which the supply lines run (electricity, water, hydraulic oil), for the desired depth prepared.
- the aggregate thus formed is on an excavator or a special carrying device with a vertical broker held by a steel cable and guided.
- the swinging and rotating suspension point is located at the top End of the tubing.
- the deep vibrator At the lower end of the tubing is the deep vibrator means articulated a joint coupling.
- the deep vibrator should be at the point of articulation stay calm and with the bottom Haittlerspitze a circular oscillation exercise.
- the movement of the vibrator is thus of a cone with overhead Lace shrouded.
- the movement of the vibrator is determined by the orbital frequency and the size of the unbalanced mass determines and does not necessarily correspond to the aforementioned ideal case.
- Due to the rotation of the imbalance mass it comes to a reverse rotational moment on the vibrator housing, resulting in a twist the vibrator and the pipe string and thus leads to the leader.
- twist the supply lines, which are thereby disconnected can or can tear out of their fittings.
- This phenomenon is so far by attaching longitudinal external swords to the housing of the deep vibrator or at least by longitudinally guided outside piping only insufficiently counteracted. Incidentally, such agents increase the penetration resistance of the deep vibrator disadvantageously.
- the compaction of the soil takes place from bottom to top. After lowering the deep vibrator on the intended final depth, he is either continuously upward pulled or in stages in increments of 20 to 100 cm, taking on each Step for a while from 20 to 60 seconds.
- the compaction of the soil is naturally associated with a volume reduction, which is due to a funnel formation and concentric risers around the funnel on the terrain surface and at an inclination of the terrain surface further towards the funnel points.
- it is customary with a set rotational frequency to work and control the power absorbed by the vibrator motor. This is to be avoided on the one hand unacceptable burdens, on the other Compaction steps are interrupted with only low power consumption and the deep vibrator pulled to the next level.
- DE 26 29 485 A1, DE 29 48 403 A1 and DE 32 05 099 A1 are deep vibrators in which there are agents with which the effective imbalance mass be changed by changing the direction of rotation of the imbalance mass can.
- the present invention has for its object to provide a method with which the mentioned malfunctions prevented and the penetration of the deep vibrator can be improved.
- the solution to this consists in a method according to which the imbalance mass with alternating direction of rotation is driven, the direction of rotation depending is changed by the rotation of the deep vibrator against the broker.
- the corresponding rotation can be detected with suitable contactless sensors become.
- a suitable deep vibrator for carrying out the method is characterized in that that he a housing of purely rotationally symmetrical outer shape and a rotationally switchable drive for the imbalance mass has. With this purely rotationally symmetric Outside shape of the deep vibrator receives an improved penetration.
- monitoring means for the twist angle of the deep vibrator opposite the broker are provided and a preferably automated reversal the damage-free Operation secures. Changes with the change of the direction of rotation of the imbalance mass the direction of rotation of the return torque, so that the twist occurred is canceled again and the then entering twist in the opposite direction in itself repeatedly controlled and limited.
- the effective imbalance mass remains unchanged.
- FIG. 1 shows a torpedo-shaped deep vibrator 11 whose cross-section is pure is circular cylindrical and which reveals a conical tip 12. At the upper end a movable coupling 13 is provided, to which a linkage section 14 followed.
- FIG. 2 a deep vibrator 21 according to the prior art is shown in comparison to FIG. in addition to the matching features of a conical tip 22, a coupling 23 and a linkage section 24, lateral cable guides 25, 26 and overlying radially projecting swords 27, 28 can be seen, the Counteract a twisting of the vibrator in the ground.
- the swords 27, 28 have the shape of radially projecting fins.
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)
- Earth Drilling (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Description
- Figur 1
- zeigt einen Tiefenrüttler in Seitenansicht und im Querschnitt.
- Figur 2
- zeigt einen Tiefenrüttler nach dem Stand der Technik in Seitenansicht und im Querschnitt.
- Figur 3
- zeigt einen Tiefenrüttler mit eingeschraubtem Gestänge, angehängt an einem Kranfahrzeug.
Claims (1)
- Verfahren zum Verdichten von Böden mittels eines Tiefenrüttlers (11), der von einer um eine vertikale Längsachse umlaufenden Unwuchtmasse erregt in den Boden abgesenkt und aus diesem wieder gezogen wird, der an einem Mäkler oder dergleichen (18) mittels eines über eine Gelenkkupplung (13) angeschraubten Rohrstranges (14) und mittels eines im Mäkler (18) laufenden Stahlseiles (16) aufgehängt ist und der mit zumindest einem Kabel oder Schlauchstrang verbunden ist, der an den Rohrstrang (14) herangeführt ist, wobei die Unwuchtmasse mit abwechselnder Drehrichtung angetrieben wird,
dadurch gekennzeichnet, daß die Drehrichtung in Abhängigkeit von der Verdrehung des Tiefenrüttlers (11) gegenüber dem Mäkler (18) geändert wird.
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 EP1069244A2 (de) | 2001-01-17 |
| EP1069244A3 EP1069244A3 (de) | 2002-07-03 |
| EP1069244B1 true EP1069244B1 (de) | 2005-09-28 |
Family
ID=7913657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00114397A Expired - Lifetime EP1069244B1 (de) | 1999-07-05 | 2000-07-05 | Verfahren zur Steuerung eines Tiefenrüttlers |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1069244B1 (de) |
| AT (1) | ATE305537T1 (de) |
| DE (1) | DE19930885C2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358248A (zh) * | 2014-11-13 | 2015-02-18 | 中国水电基础局有限公司 | 振冲碎石桩机的伸缩式导杆 |
Families Citing this family (6)
| 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 |
| NL1033865C2 (nl) * | 2007-05-16 | 2008-11-18 | Van Leeuwen Harmelen Bv Geb | Funderen door trillen en fluïderen. |
| DE102010029010A1 (de) * | 2010-04-16 | 2011-10-20 | Alexander Degen | Tiefenrüttleranordnung mit Schneidplatte |
| 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 |
| DE102016120382A1 (de) | 2016-10-26 | 2018-04-26 | Gmb Gmbh | Methode, Prinzip, Steuerung und Ausrüstung zur Durchführung der selbsttätigen Verdichtung von mehrphasigen Korngemischen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7508079A (nl) * | 1975-07-07 | 1977-01-11 | Kooten Bv V | Grondtriller en werkwijze voor het in de grond brengen van een grondtriller. |
| DE2948403A1 (de) * | 1979-12-01 | 1981-06-04 | Fritz Pollems KG Spezialtiefbau, 1000 Berlin | Vibrator zur verdichtung von erdreich |
| DE3105611C2 (de) * | 1981-02-16 | 1984-03-29 | Zoltan Thomas Dipl.-Ing. 7640 Kehl Egey | Verfahren und Vorrichtung zum Tiefverdichten |
| DE3205099C2 (de) * | 1981-11-28 | 1984-04-05 | Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim | Tiefenrüttler zum Verdichten des Baugrundes |
| EP0436954B1 (de) * | 1990-01-11 | 1994-10-05 | Seiko Kogyo Kabushiki Kaisha | 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 |
-
1999
- 1999-07-05 DE DE19930885A patent/DE19930885C2/de not_active Expired - Fee Related
-
2000
- 2000-07-05 AT AT00114397T patent/ATE305537T1/de not_active IP Right Cessation
- 2000-07-05 EP EP00114397A patent/EP1069244B1/de not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358248A (zh) * | 2014-11-13 | 2015-02-18 | 中国水电基础局有限公司 | 振冲碎石桩机的伸缩式导杆 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19930885C2 (de) | 2003-04-24 |
| DE19930885A1 (de) | 2001-02-01 |
| EP1069244A3 (de) | 2002-07-03 |
| EP1069244A2 (de) | 2001-01-17 |
| ATE305537T1 (de) | 2005-10-15 |
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