EP1710355A1 - Rideau souterrain mixed-in-place avec des poutres filigranes - Google Patents

Rideau souterrain mixed-in-place avec des poutres filigranes Download PDF

Info

Publication number
EP1710355A1
EP1710355A1 EP06005788A EP06005788A EP1710355A1 EP 1710355 A1 EP1710355 A1 EP 1710355A1 EP 06005788 A EP06005788 A EP 06005788A EP 06005788 A EP06005788 A EP 06005788A EP 1710355 A1 EP1710355 A1 EP 1710355A1
Authority
EP
European Patent Office
Prior art keywords
elements
bars
wall
longitudinal bars
mixed
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Withdrawn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
EP06005788A
Other languages
German (de)
English (en)
Inventor
André Seidel
Peter Gollub
Jürgen Aidelsburger
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 Spezialtiefbau GmbH
Original Assignee
Bauer Spezialtiefbau 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 Spezialtiefbau GmbH filed Critical Bauer Spezialtiefbau GmbH
Publication of EP1710355A1 publication Critical patent/EP1710355A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • E02D5/187—Bulkheads or similar walls made solely of concrete in situ the bulkheads or walls being made continuously, e.g. excavating and constructing bulkheads or walls in the same process, without joints
    • 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
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor

Definitions

  • the invention describes a device for the concentrated introduction of force into unreinforced shoring walls or diaphragm walls in the ground, which are produced by the mixed-in-place method or as single-phase sealing walls with self-hardening support suspension.
  • the mixed-in-place method describes a manufacturing technique in which the pending soil is converted into a soil mortar by one or more rod-shaped agitators or slit-wall mill-like devices in the soil.
  • water and binder and possibly also additives or bentonite is added via the stirring tools or milling and mixed the soil into a mortar.
  • such walls are used in the mixed-in-place process to create waterproofing screens in the ground to retain the groundwater.
  • the compressive strength of these mixed-in-place walls is in the range of 1-2 N / mm 2 for pure sealing measures.
  • binders preferably cement-based, but also compressive strengths, which are between 5 and 15 N / mm 2 , and thus such walls can accommodate even larger loads.
  • statically effective mixed-in-place walls are that, firstly, there is no excavated material that has to be moved away, and second, the material of the wall is significantly cheaper than concrete diaphragm walls.
  • This back anchoring can be done in such a way that in these slot wall-like walls after the mixed-in-place process at intervals, pairs of rolled steel profiles are used, which are back-anchored with conventional injection anchors.
  • These steel profiles usually consist of IPB beams or welded structures with double U-beams.
  • the mixed-in-place wall between these vertical girders can remain unreinforced because, due to the wall thickness of about 40-80 cm between the individual girders, horizontal pressure vaults can form within the wall body which compresses the earth pressure forces in the fields Transfer carrier structures.
  • mixed-in-place retaining walls are generally only used for a short time, because the designs made of rolled steel profiles are expensive due to their longevity, the price of such temporary mixed-in-place retaining walls is unnecessarily increased.
  • diaphragm walls which are produced in the single-phase process with a self-curing support suspension of water, cement and bentonite.
  • the invention has the object to find a low-cost device, which still makes a concentrated application of force for anchoring back such unreinforced walls possible.
  • a special feature of the invention lies in the design of the elements 14 and their arrangement in the unreinforced mixed-in-place slot or in an unreinforced single-phase sealing wall.
  • the elements 14 consist of substantially mutually parallel longitudinal bars 1, 1 ', 1 "..., which are non-positively connected by zig-zag or wavy arranged diagonal bars 2.
  • a steel bar can be formed zigzag or wavy over a longer range (Figure 2) or single diagonal bars 2 'or individual substantially triangular curved bars 2 "are used ( Figures 6 and 7).
  • Static requirements may require that the longitudinal bars be connected to each other on two sides or through several layers of diagonal bars (Figure 1).
  • welds 4 are preferably arranged in the arcs or tips of the diagonal bars 2 and the dimensions of the diagonal bars 2 are chosen so that the longitudinal bars 1, 1 '... are as far outside in the wall and thus larger bending moments can be accommodated.
  • the inclination angles ⁇ , ⁇ ', with which the diagonal bars 2 run towards the longitudinal bars, are preferably in the range between 30 ° and 60 °.
  • the diagonal bars 2 between the longitudinal bars 1, 1 ' should be as straight as possible.
  • FIG. 5 shows a variant embodiment in which elements 14 are arranged triangular in relation to one another on the left side. On the right side, two elements 14 are combined to form a triangular element 19, in which a longitudinal bar 20 and longitudinal bars 1 'are non-positively and statically operatively welded to one another via two or more diagonal bars by welds 4, 4'. It may be expedient that in this case the size of the cross-sectional area of the longitudinal bar 20 is different than the cross-sectional area of the longitudinal bars 1 '.
  • the longitudinal bars 1, 1 '... and the diagonal bars 2 are preferably made of profiled or ribbed structural steels with circular cross sections. In principle, however, all cross-sectional shapes are conceivable.
  • the embodiment of the elements 14 can be made both of smooth steels, but preferably of steels, which have a certain roughness by mechanical processing or coating, which causes higher adhesive stresses in the floor mortar.
  • each element 14 Preferably, only one earth-side bar 1 and one air-side bar 1 'are arranged on each element 14, whose cross-sectional areas can also vary.
  • the diagonal bars can also be welded between the longitudinal bars (FIG. 7).
  • the elements 14 are preferably installed vertically and aligned so that their larger expanse area comes to lie across the plane of the mixed-in-place wall.
  • angles ⁇ and ⁇ 'of these surfaces to the wall normal are preferably in a range between -45 ° and + 45 °.
  • At least two or more elements 14 are combined with one another at the locations of the concentrated introduction of force.
  • the elements 14 are introduced into the freshly prepared mortar only after production of the mixed-in-place wall, which is done by pure impressions or easy vibrating, the elements 14 must be fixed by suitable binding plates 3, 3 ', 5 in their arrangement to each other.
  • the elements 14 are connected by constructive welds or by binding wire with the binding plates.
  • the binding plates can also be replaced by rods.
  • the binding plates 3, 3 ', 5 are arranged at intervals of about 0.5 to 2 m.
  • the concentrated application of force across the wall surface serves to absorb the horizontally acting earth pressure forces or the water pressure and takes place via injection anchors or bar injection piles.
  • Fig. 1 transmits the pull rod 9, which may consist of strands or steel bars, the forces from the earth pressure on a load-distributing head plate 8 on the wall surface 10 and this top plate is set only after exposure of the wall and straightening.
  • Anchoring means 7 are wedges or nuts. In this application, the anchor heads protrude over the wall surface.
  • FIG 3 an embodiment of the invention is shown, in which the force is not introduced by a support plate, which rests against the wall surface, but the support plate 12 is sunk.
  • the support plate 12 transmits the forces by welded web plates 13 on short pieces of angle iron 11 'or U-profiles eleventh Through these forces enter the elements 14 directly or indirectly.
  • the angle iron or U-profiles are welded to the elements 14 for this purpose.
  • the dimensions of the elements 14 are chosen so that they have sufficient steel coverage through the floor mortar within the floor mortar wall 6. It lies in the centimeter range.
  • FIG. 4 shows the static mode of operation of the back anchoring of an unreinforced wall produced according to the mixed-in-place method.
  • the device according to the invention makes it possible to use the mixed-in-place process economically also for back-anchored construction pit walls with the use of inexpensive installation elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)
  • Joining Of Building Structures In Genera (AREA)
EP06005788A 2005-03-26 2006-03-21 Rideau souterrain mixed-in-place avec des poutres filigranes Withdrawn EP1710355A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510013994 DE102005013994B4 (de) 2005-03-26 2005-03-26 Vorrichtung zur konzentrierten Krafteinleitung in unbewehrte Schlitzwände im Erdreich

Publications (1)

Publication Number Publication Date
EP1710355A1 true EP1710355A1 (fr) 2006-10-11

Family

ID=36888877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06005788A Withdrawn EP1710355A1 (fr) 2005-03-26 2006-03-21 Rideau souterrain mixed-in-place avec des poutres filigranes

Country Status (2)

Country Link
EP (1) EP1710355A1 (fr)
DE (1) DE102005013994B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057811A1 (de) * 2006-12-06 2008-06-19 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtwand mit Tragelementen aus Betonfertigteilen
DE102007003085A1 (de) * 2006-12-22 2008-07-03 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtwand mit optimierten Betonfertigteilen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2127227A5 (fr) * 1971-03-01 1972-10-13 Soletanche
DE3504161A1 (de) * 1985-02-07 1986-08-07 Frankipfahl Baugesellschaft mbH, 4000 Düsseldorf Verfahren zur herstellung von wandfoermigen bauwerken im erdreich und bewehrungsplatte zur durchfuehrung des verfahrens
EP0939168A2 (fr) * 1998-02-26 1999-09-01 Kurt G. Ross Méthode pour l'assainissement de murs de soutènement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4101015C2 (de) * 1991-01-15 1996-04-18 Dyckerhoff Ag Verfahren zur Herstellung einer Dichtungsschlitzwand
DE9308824U1 (de) * 1993-06-14 1994-10-27 Josef Riepl Bau-Aktiengesellschaft, 81477 München Wandelement
DE19526396C2 (de) * 1995-07-19 2000-11-02 Dyckerhoff Ag Baugrubenverbau, Verfahren zu seiner Herstellung sowie Baustoffgemenge dafür
DE19859407C2 (de) * 1998-12-22 2001-10-31 Bauer Spezialtiefbau Schlitzwandbewehrung für Ortbeton-Schlitzwände
DE10308540B4 (de) * 2003-02-27 2005-02-17 Bauer Maschinen Gmbh Verfahren und Vorrichtung zum Herstellen eines Gründungselementes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2127227A5 (fr) * 1971-03-01 1972-10-13 Soletanche
DE3504161A1 (de) * 1985-02-07 1986-08-07 Frankipfahl Baugesellschaft mbH, 4000 Düsseldorf Verfahren zur herstellung von wandfoermigen bauwerken im erdreich und bewehrungsplatte zur durchfuehrung des verfahrens
EP0939168A2 (fr) * 1998-02-26 1999-09-01 Kurt G. Ross Méthode pour l'assainissement de murs de soutènement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006057811A1 (de) * 2006-12-06 2008-06-19 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtwand mit Tragelementen aus Betonfertigteilen
DE102007003085A1 (de) * 2006-12-22 2008-07-03 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtwand mit optimierten Betonfertigteilen
DE102007003085B4 (de) * 2006-12-22 2011-04-28 Franki Grundbau Gmbh & Co.Kg Verfahren zur Herstellung einer Dichtwand mit optimierten Betonfertigteilen

Also Published As

Publication number Publication date
DE102005013994A1 (de) 2006-09-28
DE102005013994B4 (de) 2007-01-25

Similar Documents

Publication Publication Date Title
DE69611931T2 (de) Unterirdisches bauwerk, insbesondere für die herstellung von tunnels, unterführungen, tiefgaragen, etc. und sein herstellungsverfahren
EP3441527B1 (fr) Dispositif de blocage destiné à empêcher la circulation des véhicules terrestres
DE69032103T2 (de) Zellulare strukturen zum stützen von wänden
CH707671B1 (de) Stützmauerelement und Stützmauer aus Stützmauerelementen.
DE3215153C2 (de) Stützbauwerk und Verfahren zur Herstellung eines Stützbauwerks
DE69108246T2 (de) Verfahren zur errichtung einer gründungsstruktur für eine gebäude-unterkonstruktion.
AT391506B (de) Vorrichtung zur abfuehrung von waerme in den erdboden bzw. zur aufnahme der waerme aus dem erdboden
DE202019100752U1 (de) Verbauvorrichtung
DE2823950C2 (de) Schachtausbau, insbesondere für den Ausbau tiefer Schächte in nicht standfestem, wasserführendem Gebirge
DE102005013993B3 (de) Gründung für einen Hochwasserschutz
DE102005013994B4 (de) Vorrichtung zur konzentrierten Krafteinleitung in unbewehrte Schlitzwände im Erdreich
DE60007842T2 (de) Platte, zusammenbau solcher platten und verwendung zum aufnehmen schwerer lasten
EP1530662A1 (fr) Fondation de structures hydrauliques
DE102008009057A1 (de) Holzmastegründung
DE2022787B2 (de) Verfahren zur herstellung einer gegen auftrieb gesicherten unterwasserbetonsohle
AT519819B1 (de) Verfahren zur nachträglichen bodenverfestigung
DE1958814B1 (de) Bauelement aus Beton und daraus hergestellte Wand,insbesondere Kaimauer,Mole od.dgl.
EP3299524B1 (fr) Mur en elements prefabriques et son procede de fabrication
DE10327607B3 (de) Steifenanschluss
DE102014118543B4 (de) Abgrenzungsanordnung
EP4098802B1 (fr) Procédé géotechnique, ainsi qu'agencement géotechnique
DE3403745C2 (fr)
DE19820932C2 (de) Stahlspundwand
AT409984B (de) Feuchtigkeitssperre, isolierplatte für eine solche feuchtigkeitssperre, verfahren sowie vorrichtung zum herstellen der feuchtigkeitssperre und führungsstück zur verwendung bei diesem verfahren
DE202018106569U1 (de) Ausfachungssystem

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070412

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566