EP1672125B1 - Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements - Google Patents

Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements Download PDF

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Publication number
EP1672125B1
EP1672125B1 EP04029612A EP04029612A EP1672125B1 EP 1672125 B1 EP1672125 B1 EP 1672125B1 EP 04029612 A EP04029612 A EP 04029612A EP 04029612 A EP04029612 A EP 04029612A EP 1672125 B1 EP1672125 B1 EP 1672125B1
Authority
EP
European Patent Office
Prior art keywords
injection
filling material
shaft
foundation
nozzle
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.)
Not-in-force
Application number
EP04029612A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1672125A1 (de
Inventor
Franz-Werner Dipl.-Ing. Gerressen
Georg Hofner
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.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen 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 Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to ES04029612T priority Critical patent/ES2308095T3/es
Priority to EP04029612A priority patent/EP1672125B1/de
Priority to DE502004007406T priority patent/DE502004007406D1/de
Priority to AT04029612T priority patent/ATE398708T1/de
Priority to JP2005353048A priority patent/JP3980612B2/ja
Publication of EP1672125A1 publication Critical patent/EP1672125A1/de
Application granted granted Critical
Publication of EP1672125B1 publication Critical patent/EP1672125B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E02D7/22—Placing by screwing down
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
    • 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

  • the invention relates to a civil engineering device for producing a foundation element according to the preamble of claim 1.
  • the invention further relates to a method for producing a foundation element in the ground according to the preamble of claim 6.
  • a drill head which has a conical body with laterally extending screw cutting and below two tips.
  • Another civil engineering device and a civil engineering process are from the EP 0 732 452 B1 known.
  • To stabilize cohesive soils with insufficient carrying capacity is taught to produce a pillar in the soil to produce columnar cavities under displacement of the surrounding soil material, wherein at the same time as the injection of bulk material is introduced into the resulting cavity.
  • the introduction of the bulk material in the cavity is supported by means of a screw conveyor.
  • a good filling of the cavity can be achieved with the bulk material, which is essential for a compact and therefore stable foundation column.
  • Another generic device and a generic method are from the DE-U 75 17 180.1 known. In contrast to the method described above, a drill pipe is pressed into the ground simultaneously with the punch or the displacer head.
  • Such foundation columns are used essentially when the foundation on soft soil layers is not possible and the loads are to be transferred to deeper, sustainable soil layers. In such soils, drilling methods can not or can not be used economically. Furthermore, such foundation columns are used to increase the storage density of a loosely stored soil.
  • the invention has for its object to provide a civil engineering device and a method for producing a foundation element, with which in a simple and reliable manner at the same time stable foundation elements can be generated in the ground.
  • the displacer head has at least one injection device for introducing an injection material, in particular a liquid, into the region of the foundation element.
  • an injection material which may be a specific chemical substance, in particular water
  • a desired hardening of the filling material can also be achieved in the inner region of the foundation column.
  • the displacer head has at least one material passage opening, in which the product to be conveyed from above can reach downwards so as to reliably fill the free space forming during the retraction of the displacer head as the core region of the foundation column.
  • This core area which is particularly important for the stability of the foundation element, can thus be adjusted in a targeted and reliable manner in terms of its strength behavior.
  • a development of the invention consists in that the shaft and the displacement head have an inner feed channel which is connected to the injection device.
  • the shaft can be designed as a hollow shaft, a so-called core tube, through which liquid can be passed under pressure up to the displacer head.
  • further injection devices may also be present along the shaft, so that targeted pre-moistening of the filling material can take place via this.
  • the injection device has at least one nozzle channel whose nozzle opening can be closed by means of a closing device.
  • a closing device By the closing device can be prevented that the supplied under pressure filling material can penetrate from the outside into the nozzle device.
  • different types of adjustable valves can be used as closing device.
  • a particularly reliable and durable closing device is achieved according to the invention in that the closing device has an inner sealing element and an outer cover element.
  • the cover element serves as a protection of the sensitive sealing element against relatively sharp-edged soil material or filling material. This allows the use of simple and thus cost-effective sealing elements, which ensure a reliable closure of the nozzle channel.
  • a particularly good injection is inventively achieved in that the injection device has a plurality of nozzle channels whose nozzle openings are arranged annularly to each other, and that the closing means comprises a sealing ring which covers a plurality of nozzle openings.
  • the sealing ring which may be an O-ring in particular, is a particularly simple and thus cost-effective sealing element.
  • the radial nozzle channels open into an annular groove along the substantially circular shaft of the displacer head, wherein in the annular groove of the sealing ring is inserted so that it closes the respective nozzle openings tight.
  • the sealing ring is dimensioned such that it releases the nozzle openings by elastic stretching only above a certain pressure, for example 1 bar overpressure.
  • This blocking pressure of the sealing ring is designed so that in particular the hollow shaft with a filled injection material can be transported hanging on a crane without the injection material exiting from the nozzle openings. In operation, this barrier pressure can then be exceeded by a corresponding increase in pressure by means of a pump, so that the injection material emerges in the desired manner from the nozzle openings.
  • a Drgutzu Entry is arranged with a product container through which the shaft protrudes and that the conveyor coil is designed so that when rotating drive filling material for forming the foundation element from the product container is conveyed into the ground.
  • a receiving container is provided for the injection material, which is connected via the feed channel with the at least one nozzle channel.
  • This receptacle which is in particular a water tank, ensures a sufficient water supply.
  • the liquid can be passed at the desired pressure to the nozzle openings.
  • the pump device can be controlled to a defined supply of the liquid, in particular depending on the supplied material Gugutmaterial and the respective drilling depth.
  • the inventive method is provided that when injecting and / or retracting the shaft via at least one nozzle opening in the displacer injection material is injected into the filling material supplied into the cavity.
  • a targeted adjustment of the properties of the foundation element is inventively achieved in that for injection, the at least one nozzle opening is closed with an elastic sealing element, wherein opening takes place by increasing the pressure of the injection material at the nozzle opening.
  • the barrier pressure of the elastic sealing element can be overcome by a corresponding adjustment of the pump for supplying the injection material.
  • a displacer head 10 has a lower displacement area 11, which can be connected via an upper connection area 12 to a shaft driven in rotation.
  • a tubular core element 14 is provided, which tapers from a cylindrical region over a conical region to the lower tip 15.
  • Verdrängerratln 13 are arranged, which fill when pressed into the ground with the contents and form a compact positive displacement tool.
  • a feed channel 16 extends, which opens in the region of the tip 15 into radially directed nozzle channels 22 of an injection device 20.
  • the drilled cylindrical nozzle channels 22 open with their nozzle openings 23 in an annular groove 27, which is initially conical and then rectangular in cross-section.
  • an O-ring seal made of an elastic material is provided for forming a closing device 24 as a sealing element 25, which is designed such that it lies in the annular groove 27 and reliably closes the nozzle openings 23.
  • annular cover element 26 made of a metal sheet is furthermore provided, which protects the sealing element 25 from damage from the outside.
  • the cover element 26 is arranged in the rectangular region of the annular groove 27 such that a clearance for the passage of liquid is ensured radially outward.
  • the feed channel 16 can be filled with a desired liquid, in particular water.
  • the elastic force of the elastic sealing element 25 is designed so that a discharge of liquid through the nozzle openings 23 is reliably prevented when the supply channel 16 is filled. If the fluid pressure in the supply channel 16 is increased by means of a pumping device, not shown, the sealing element 25 widens and liquid can pass through the nozzle openings 23 emerge radially outward, so as to wet in the desired manner the introduced contents, in particular when retracting the displacer 10 from the ground.
  • Fig. 2 shows the part of a shaft 30 which is like a module to the displacement head 10 according to Fig. 1 be installed then.
  • the shaft 30 has a male connection region 34 and a female connection region 35, the male connection region 34 corresponding to the connection region 12 of the displacement head 10 Fig. 1 equivalent.
  • the shaft 30 has a hollow core tube 31, on the outer circumference of a conveyor coil 32 is arranged. This is used for supplying filling material into the soil from a Gregutzu Installation, not shown, as is known from the prior art.
  • the shaft 30 has along its length one or more annular nozzle elements 38, with which liquid can also be sprayed radially outward already in the shaft region.
  • the injection device can be designed in a corresponding manner, as in connection with the injection device 20 of Fig. 1 has been described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Revetment (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Earth Drilling (AREA)
EP04029612A 2004-12-14 2004-12-14 Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements Not-in-force EP1672125B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES04029612T ES2308095T3 (es) 2004-12-14 2004-12-14 Dispositivo y metodo para la produccion de un elemento de cimentacion.
EP04029612A EP1672125B1 (de) 2004-12-14 2004-12-14 Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements
DE502004007406T DE502004007406D1 (de) 2004-12-14 2004-12-14 Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements
AT04029612T ATE398708T1 (de) 2004-12-14 2004-12-14 Tiefbauvorrichtung und verfahren zum herstellen eines gründungselements
JP2005353048A JP3980612B2 (ja) 2004-12-14 2005-12-07 基礎構築装置および基礎要素を造り出す方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04029612A EP1672125B1 (de) 2004-12-14 2004-12-14 Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements

Publications (2)

Publication Number Publication Date
EP1672125A1 EP1672125A1 (de) 2006-06-21
EP1672125B1 true EP1672125B1 (de) 2008-06-18

Family

ID=34927773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04029612A Not-in-force EP1672125B1 (de) 2004-12-14 2004-12-14 Tiefbauvorrichtung und Verfahren zum Herstellen eines Gründungselements

Country Status (5)

Country Link
EP (1) EP1672125B1 (es)
JP (1) JP3980612B2 (es)
AT (1) ATE398708T1 (es)
DE (1) DE502004007406D1 (es)
ES (1) ES2308095T3 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006023799B4 (de) * 2006-05-20 2014-05-15 Franki Grundbau Gmbh & Co.Kg Vorrichtung zur Herstellung von Gründungselementen
KR100951632B1 (ko) 2007-11-28 2010-04-09 강종호 선단 그라우트 주입장치를 이용한 입상재 지반 압밀주입공법
JP5064297B2 (ja) * 2008-05-21 2012-10-31 旭化成建材株式会社 スパイラルロッド
NL2008107C2 (nl) * 2012-01-11 2013-07-15 Decombi B V Samenstel voor het in een bodem vervaardigen van een langwerpig constructie-element en een verdringingslichaam.
NL2018729B1 (nl) * 2017-04-18 2018-10-29 Chinforce B V Boorpunt voor een grondverdringingsboor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7517180U (de) * 1975-05-30 1976-07-29 Stade, Heinrich, 2240 Heide Vorrichtung zur herstellung von kalkpfaehlen in zu stabilisierenden schluff- und tonboeden o.dgl.
JPH01312193A (ja) * 1988-06-13 1989-12-15 Shiomigumi:Kk アースオーガ装置に使用する掘削ヘッド
ATE188528T1 (de) * 1995-03-14 2000-01-15 Bauer Spezialtiefbau Verfahren und vorrichtung zur stabilisierung van bindigen böden mit ungenügender tragfähigkeit
DE69828604D1 (de) * 1998-09-24 2005-02-17 Hareninvest Wijnegem Verfahren zum Herstellen eines Ortbetonpfahles im Boden
DE10219862B4 (de) * 2002-05-03 2005-07-14 Bauer Spezialtiefbau Gmbh Verfahren und Tiefbauvorrichtung zur Herstellung einer Gründungssäule in einem Boden

Also Published As

Publication number Publication date
EP1672125A1 (de) 2006-06-21
DE502004007406D1 (de) 2008-07-31
ATE398708T1 (de) 2008-07-15
ES2308095T3 (es) 2008-12-01
JP3980612B2 (ja) 2007-09-26
JP2006169954A (ja) 2006-06-29

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