EP1916341A2 - Procédé et dispositif destinés à l'introduction de profilés dans la terre - Google Patents

Procédé et dispositif destinés à l'introduction de profilés dans la terre Download PDF

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Publication number
EP1916341A2
EP1916341A2 EP07020692A EP07020692A EP1916341A2 EP 1916341 A2 EP1916341 A2 EP 1916341A2 EP 07020692 A EP07020692 A EP 07020692A EP 07020692 A EP07020692 A EP 07020692A EP 1916341 A2 EP1916341 A2 EP 1916341A2
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EP
European Patent Office
Prior art keywords
profile
nozzle
nozzle head
rinsing
ground
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.)
Withdrawn
Application number
EP07020692A
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German (de)
English (en)
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EP1916341A3 (fr
Inventor
Lutz Stolze
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.)
Stolze Lutz
Original Assignee
Stolze Lutz
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Filing date
Publication date
Application filed by Stolze Lutz filed Critical Stolze Lutz
Publication of EP1916341A2 publication Critical patent/EP1916341A2/fr
Publication of EP1916341A3 publication Critical patent/EP1916341A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ

Definitions

  • the invention relates to a method for improved introduction of profiles into the ground for building enclosures or foundations by means of rinsing, which are promoted by Einbringrochrik Kunststoff Anlagenn at the same time with the introduction of the profile in the soil in the vicinity of the penetrating end of the profile and an apparatus for performing the method.
  • Sheet pile walls and rows of bored piles represent, with suitable geology, a very cost-effective and rapidly constructing construction method for a construction pit termination or building foundation.
  • Sheet piles are made by different manufacturers in various sizes and shapes. Basically, you have to distinguish two types of sheet piles: those with waterproof lock (sheet piles, sheet piling) and those without lock (channel boards). The most commonly used shapes are: sheet piles with U-profile, Z-profile and AZ-profile.
  • a pile driver today consists of the equipment rack, the leader with guide device for the Rammbär and the Rammgut, Rammbär or vibrator, from the Rammhaube and from winds to pull up the Rammgutes and possibly the Rammbgen.
  • the equipment carrier is usually a hydraulic excavator. If the sheet piles are guided or held by a special device, a "free-wheeling" ram, usually a jogger, use (free ramming), which is not led even at the leader.
  • the associated vibrations can compact a rolling ground, resulting in subsidence of buildings.
  • Rammer vibrations can migrate through the foundation into the buildings and, at high vibration speeds, lead to constructional damage and, at lower vibration velocities, to nuisance the inhabitants.
  • the vibration velocity is decisive. Since impact vibration in buildings is usually perceived as "exaggerated” and often overestimated with regard to their effects on the building, measurements should be carried out, in particular as part of evidence preservation.
  • the shaking and pressing are shown. Due to the vibrations, for example during high-frequency vibration for shaking the skin friction between soil / sheet pile wall is significantly reduced.
  • the "shaking method" is particularly well suited for drawing boards and beams.
  • the shaking is quiet compared to the ramming and for the introduced into the soil components (sheet piling, pile) gentler.
  • the risk of the castle blasting or the misalignment is less than when ramming, as the sheet pile stuck when hitting obstacles rather than stray.
  • a Bohrpress resin can be used;
  • a drilling auger works in the sheet pile valleys to facilitate the insertion process.
  • the cost of flushing according to the prior art or "predrilling" is inherently considerable, but only so can a firm ground Preventing the blistering.
  • steel profiles, which were selected only due to the static requirements, may be damaged so much during ramming that they can no longer fulfill their function as a construction pit closure. So it is possible that the planks are torn apart at the locks or split on obstacles in the ground (eg boulders). Often, such damage only during the excavation of the pit - if it is usually too late for countermeasures - noticed.
  • the cutting jet is additionally encased with compressed air, which allows larger diameters in much deeper areas.
  • a sheathed water jet cuts the soil separately in the triple process (especially for underpinning) and the cement suspension is introduced through a second nozzle below it.
  • Advantages of jet columns are the vibration-free working, the adaptability to the ground and the applicability even with limited height.
  • the disadvantage is that the columns can not be reinforced and the resulting "concrete floor" anyway less resilient than an in-situ concrete with recipe. This method is for example in the EP 0653518 B1 described.
  • the solution initially comprises the teaching that the soil is loosened with at least one rinsing agent jet in front of the head surface of the profile in the main extension direction of its cross section.
  • the rinsing agent jet is aligned by means of a predetermined position of a nozzle, and indeed according to several particular embodiments so that the rinsing agent is aligned depending on the shape of the profile concentric, fan-shaped or elliptical by appropriate selection of the nozzle.
  • Practice has shown that different soil qualities also allow for variable rinsing results when, for example, the rinse stream is elliptical or concentric.
  • the method can be further improved by the rinsing aid having a plurality of nozzles injecting a corresponding number of rinsing agent jets in front of a plurality of partial surfaces of the top surface of the profile to be rammed.
  • the rinsing aid having a plurality of nozzles injecting a corresponding number of rinsing agent jets in front of a plurality of partial surfaces of the top surface of the profile to be rammed.
  • the rinsing agent prefferably be acted upon by a pressure-controllable pump for the rinsing agent in order to reinforce the rinsing aid with increasing penetration depth of the profile, but not to have any significant pressure at the beginning of the work. This increases the safety of the operating personnel, as contrary to the prior art, the detergent jet is directed sideways and not towards the ground.
  • the solution further comprises a device for improved introduction of profiles into the ground for building enclosures and foundations by means of profile mounted Einganrochunk Kunststoffmaschinen, wherein the rinsing aid comprises a high-pressure tube with a nozzle head, which projects beyond the profile at the end to be introduced, and in the nozzle head at least one has orthogonal to the longitudinal axis of the tube arranged nozzle.
  • the high-pressure pipe is connected by means of spacers and the nozzle head directly along a profile edge with the profile, preferably welded. It is taken for reasons of stability and the exact alignment of the purge jet into account that the nozzle head may be lost if, for example, channel boards are not pulled back.
  • the nozzle head has a plurality of nozzles, so that at the same time several cross-sectional areas of the profile can be swept over with rinse aid jets.
  • nozzles are provided in the nozzle head with at least one connecting device for receiving the nozzles.
  • This may be a threading device with complementary threads to an external thread on the nozzle.
  • high-strength hard-blasting nozzles are used, which are screwed into the nozzle head.
  • FIG. 1 shows a sheet pile wall R of H-profiles 1, which was partly rammed. On the outer right side is still a profile 1 to ram, as the arrow indicates.
  • a pipe 2 is mounted on the profile 1 and protrudes down to the penetration end of the profile 1.
  • a wall F is ready concreted and the profile 1 'is pulled.
  • the tube 2 is used to introduce an injection solution 3 with a pump, not shown, into the slot under the drawn profile 1 '.
  • FIGS. 2 to 4 show the rinsing aid according to the invention in several views in the position of use.
  • the Hochtik Hugheseinbring Anlagen 10 of Figure 2 consists of a nozzle head 11, on the circumference of two high-pressure nozzles can be screwed; Here only mounting holes / openings 12 are shown for nozzles to be used, which can ever produce a detergent jet S in the direction of the arrow shown.
  • the perspective view of the round nozzle head 11 shows a release 13 or incorporation at a geometrically precisely defined point, which enables a secure welding of the nozzle head 11 with the profile 14 to be introduced, here a sheet pile wall Larsen 606.
  • the nozzle head 11 projects beyond the lower edge UK of the profile 14 such that the nozzle openings 12 lie just below the lower edge of the UK.
  • a conventional steel pipe 15 of about 20 to 30 millimeters in diameter is welded to the nozzle head 11.
  • the tubes 15 are welded tightly in commercial lengths by means of automatic orbital welding (not shown) with the addition of inert gas or provided with screw construction and brought to the required length of, for example, 30 meters at the site.
  • a Sch Strukturverschraubung is preferably attached and fixed axially by means of clamp on the profile 14; Thus, the clamp can be solved when placing another profile in the course of Rammfort suitss and also another tube to be welded.
  • a high-pressure pump is connected via a hose with which the rinsing liquid is injected through the high-pressure pipe 15 and the nozzles under the steel profile 14.
  • the otherwise free length of the tube 15 extends parallel to the steel profile 14 to be introduced and is held by means of short angle iron in a suitable longitudinal distance relative to the steel section 14. Only the two longitudinal legs of the angle iron are welded to the steel section 14. This type of attachment of the high pressure tube 15 of the flushing aid avoids the occurrence of harmful nodes during the introduction of the steel profile 14 and thus an impairment of the propulsion or the flow of the detergent.
  • FIG. 4 shows the situation according to FIG. 2 in a side view.
  • FIG. 3 is initially a schematic plan view of the situation as indicated in FIG. 4 by the arrow D.
  • FIG. 3 shows a schematic partial section through the nozzle head 11 as shown by the cutting position A ⁇ A in FIG. 4.
  • the nozzle head is designed so that the commercially available available carbide nozzles can be found for example by the company Düsen-Schlick GmbH, Coburg, DE use.
  • the nozzles should spray a pressure of up to 200 to 700 bar and quantities of up to 300 l per minute.
  • the variation of the atomization form as Full cone, hollow cone, smooth jet, flat jet or other with scattering cones of 30 ° - 160 ° with variable flow rates, depending on nozzle type, application and the desired drop size can be varied by the expert in a wide range and adapted to the rinsing task.
  • Suitable high-pressure water pumps for acting on the rinse aid are available, for example, from WOMA Apparatebau GmbH, Duisburg, DE.
  • the method therefore initially comprises the arrangement of a high-pressure tube on the steel profile; more precisely at an edge of the profile 14 as shown in Fig. 3.
  • the location of the flushing holes 12 is chosen exactly;
  • the nozzle head adapted for each ramming or pressing profile 14, so that after welding the nozzle head 11 on the profile 14 via rinse 15 supplied detergent in the case of Larssen profile shown a right beam R and a left beam L allows the front of the lower edge UK the respective cross-sectional areas loosen the ground during penetration of the profile 14.
  • a double sheet pile will be driven into the ground.
  • two high-pressure pipes 25, 26 which are welded at the edges 24, 28 of the composite screed profiles with these in the manner described above and parallel to the edges 24, 28 of the sheet piles 21, 23 from the upper end to the penetrating into the soil end run.
  • a nozzle head is mounted in each case and equipped with two nozzles whose orientation corresponds in the direction of extension of the sheet piles (over their cross-section).
  • the nozzle arrangement is only to be understood as an example here; In principle, the skilled person can just as well arrange at the other edges of the profiles 21, 23 nozzles and inject corresponding compartments. In this way, the exiting spray of the detergent cuts the ground in front of the head of the steel profile to be introduced "free".

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (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)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
EP07020692A 2006-10-23 2007-10-23 Procédé et dispositif destinés à l'introduction de profilés dans la terre Withdrawn EP1916341A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200610050307 DE102006050307A1 (de) 2006-10-23 2006-10-23 Verfahren und Vorrichtung zum Einbringen von Profilen in das Erdreich

Publications (2)

Publication Number Publication Date
EP1916341A2 true EP1916341A2 (fr) 2008-04-30
EP1916341A3 EP1916341A3 (fr) 2011-12-14

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Family Applications (1)

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EP07020692A Withdrawn EP1916341A3 (fr) 2006-10-23 2007-10-23 Procédé et dispositif destinés à l'introduction de profilés dans la terre

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EP (1) EP1916341A3 (fr)
DE (1) DE102006050307A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012023185A1 (de) * 2012-11-28 2014-05-28 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung eines Pfahls

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE446471C (de) * 1927-07-04 Johannes Guckes Verfahren zum Einspuelen von Spundwaenden
DE3108331A1 (de) * 1981-03-05 1982-09-23 Gkn Keller Gmbh, 6050 Offenbach "verfahren und vorrichtung fuer die herstellung von grundwasserbrunnen und fuer die grundwasserabsenkung"
EP0653518A1 (fr) * 1993-11-12 1995-05-17 Compagnie Du Sol Procédé de réalisation de parois minces dans le sol

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE446471C (de) * 1927-07-04 Johannes Guckes Verfahren zum Einspuelen von Spundwaenden
DE3108331A1 (de) * 1981-03-05 1982-09-23 Gkn Keller Gmbh, 6050 Offenbach "verfahren und vorrichtung fuer die herstellung von grundwasserbrunnen und fuer die grundwasserabsenkung"
EP0653518A1 (fr) * 1993-11-12 1995-05-17 Compagnie Du Sol Procédé de réalisation de parois minces dans le sol

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Publication number Publication date
DE102006050307A1 (de) 2008-04-30
EP1916341A3 (fr) 2011-12-14

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