WO2017129319A1 - Enceinte pour trou de fondation et procédé servant à élaborer une enceinte pour trou de fondation - Google Patents

Enceinte pour trou de fondation et procédé servant à élaborer une enceinte pour trou de fondation Download PDF

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Publication number
WO2017129319A1
WO2017129319A1 PCT/EP2016/081441 EP2016081441W WO2017129319A1 WO 2017129319 A1 WO2017129319 A1 WO 2017129319A1 EP 2016081441 W EP2016081441 W EP 2016081441W WO 2017129319 A1 WO2017129319 A1 WO 2017129319A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiving bore
wall
sealing element
joint
vertical
Prior art date
Application number
PCT/EP2016/081441
Other languages
German (de)
English (en)
Inventor
Klaus IDDA
Andreas Ackermann
Christian Lorenz
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 WO2017129319A1 publication Critical patent/WO2017129319A1/fr

Links

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
    • E02D5/02—Sheet piles or sheet pile bulkheads
    • E02D5/14—Sealing joints between adjacent sheet piles
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/02—Restraining of open water

Definitions

  • the invention relates to a method for creating a construction pit enclosure in which a substantially vertical enclosure wall of slot wall panels is created in the ground, the vertical joints are sealed by a joint sealing strip, the soil is excavated within the Umsch widelyungswand, and provided a substantially horizontal bottom plate which adjoins the enclosing wall according to the preamble of claim 1.
  • the invention further relates to a construction pit enclosure having a substantially vertical enclosure wall in the bottom formed by slot wall panels whose vertical joints are sealed by a joint sealing strip and a substantially horizontal floor plate adjacent to the enclosure wall and sealing the excavation downwardly the preamble of claim 10.
  • the invention relates to a sealing element for such a method and such Baugrubenumsch proof.
  • the enclosure wall is composed of prefabricated reinforced concrete parts, which are arranged vertically one above the other and clamped together.
  • an enclosure wall is first created in the ground.
  • the enclosure wall is made up of individual stitches or slot wall panels which, when combined, form an annularly closed enclosure. form wall. Subsequently, the soil is excavated within the enclosure wall to form the excavation.
  • a bottom plate In a lower area, a bottom plate is provided, which seals the pit against a groundwater passage from below.
  • the bottom plate may be formed by a water-barrier bottom layer or made as a structural part. Between the vertical Schlitzwandpanelen form joints, which represent leaking areas.
  • a generic method for producing a slot wall for a Baugrubenumschhow is described in detail.
  • a slot is first created in the ground, which is filled with a curable composition.
  • a formwork element is used in the not yet cured mass, which is provided with a joint sealing tape.
  • the formwork element is removed leaving the joint sealing strip in a central area along the vertical butt joint between the two trench wall panels thus created.
  • the joint sealing tape ensures that no water flows laterally into the excavated excavation along the joint between the two slotted wall panels.
  • EP 2 549 021 B1 describes a water reservoir with a shaft wall made of slotted wall panels and a concrete floor slab.
  • the bottom plate is connected via dowels or a projection with the shaft wall.
  • a horizontal annular sealing device is provided in the corner region between shaft wall and bottom plate.
  • the invention is based on the invention of specifying a construction pit enclosure and a method for creating a construction pit enclosure, with which a particularly dense construction pit enclosure can be efficiently provided. It is another object of the invention to provide a sealing element for this purpose.
  • the object is achieved on the one hand by a method having the features of claim 1, a construction pit enclosure having the features of claim 10 or by a sealing element having the features of claim 13.
  • a method having the features of claim 1 a construction pit enclosure having the features of claim 10 or by a sealing element having the features of claim 13.
  • Preferred embodiments are given in the respective dependent claims.
  • the inventive method for creating a Baugrubenumsch well is characterized in that at least one vertical butt joint between two adjacent Schlitzwandpanelen in the Umsch conductedungswand a extending to the joint sealing tape receiving bore is introduced and that in the receiving bore a sealing element is introduced to form a horizontal seal.
  • the invention is based on the finding that when water enters a generously constructed excavation enclosure, the water substantially penetrates along the vertical joints in a region which extends between a substantially centrally located joint tape between the diaphragm wall panels and the floor slab.
  • the water can rise due to capillary forces vertically in the butt joint upwards and thus penetrate past the bottom plate in the excavation.
  • an approximately horizontal receiving bore is introduced at the vertical butt joint between two adjacent Schlitzwandpanelen in the Umsch thoroughlyungswand, which extends to the joint sealing tape.
  • a sealing element is introduced, wel- Seals the receiving bore and thus the critical area of the vertical butt joint between the vertical joint sealing strip and the adjacent bottom plate.
  • a preferred embodiment of the invention is that the at least one receiving bore is introduced at the level of the bottom plate in the Umsch widelyungswand.
  • the receiving bore can preferably be created horizontally or at an oblique angle. This allows the shortest possible and thus efficient bore.
  • the bottom plate may be formed by a water-barrier bottom layer, which is natural or sealed by gel injections, or as a structural part, such as concrete.
  • the receiving bore can be introduced directly over an existing base plate in the Umsch solvedungswand.
  • the bottom plate is created and that the at least one receiving bore is introduced before the bottom plate is produced.
  • the receiving bore can be created in particular at the height level of the bottom plate. After sealing, a bottom plate can then be made separately, such as by concreting.
  • the receiving bore is introduced from an inner side of the enclosing wall to the vertical joint sealing tape or beyond in the Umsch widelyungswand.
  • the receiving bore extends horizontally or at a certain angle of inclination until the receiving bore comes close to the joint sealing tape or this preferably contacted.
  • the receiving bore thus extends transversely to the vertical butt joint, so that capillary rising of water between the vertical joint sealing strip and the bottom plate is prevented after introduction of the sealing element.
  • the receiving bore can be introduced beyond the sealing strip into the enclosing wall. In doing so, the Gendichtband removed when introducing the bore in this area and then taken over the sealing function of the introduced sealing element.
  • the bottom plate adjoins the enclosing wall to form a horizontal butt joint, which is sealed with a horizontal seal.
  • the horizontal seal may be an annular sealing device, in particular a sealing tape which has been folded over the corner.
  • the horizontal seal extends annularly along the edge of the entire bottom plate.
  • the vertical joint sealing tape can be arranged between the individual slot wall panels in any suitable manner.
  • the slot wall panels also called sealing wall panels, can be made in any way by creating and filling a hole in the ground, such as by drilling.
  • the slot or sealing wall thus produced may be referred to as a bored pile wall.
  • a preferred embodiment of the invention is that the trench wall panels are made progressively by means of a trench grab or wall trench by creating slots in the ground which are filled with a curable composition and prior to curing the vertical joint sealant tape is inserted into the slot.
  • the insertion of the vertical joint sealing strip can in particular be effected in a known manner with a shuttering element, by means of which a defined side surface of each slot wall panel is predetermined.
  • the Abschalelement is removed in a known manner again from the slot.
  • the method according to the invention is further developed in a preferred manner in that the sealing element has a cylindrical outer circumference, which is suitably inserted into the receiving bore.
  • the sealing element has a length which is smaller, equal to or greater than the introduced is bore.
  • the sealing element is inserted with a press fit or clearance in the receiving bore.
  • the sealing element has a fixed metal sleeve which is fastened with a connecting mass and / or a fastening element in the receiving bore.
  • the sealing element is formed overall as a metal sleeve, wherein the metal sleeve may be a tubular body or an at least largely solid rod member.
  • the metal sleeve is preferably used with a defined clearance in the receiving bore, with a clearance between the bore wall and the outside of the metal sleeve is given. In this space, a mortar or other compound and sealant can be injected, through which the metal sleeve is anchored fluid-tight in the receiving bore.
  • any suitable material in particular a mortar, can be used as the sealing and anchoring compound.
  • the metal sleeve can extend over the entire length of the receiving bore or only over a partial area.
  • the metal sleeve can be anchored to the enclosing wall with a fastening element, such as an annular flange.
  • the sealing element has a flexible hose sleeve which is inserted with play in the receiving bore, and that the hose sleeve is filled with a filling compound which expands the hose sleeve and anchored firmly and sealingly in the receiving bore ,
  • the hose sleeve has a clearance fit to the diameter of the receiving bore, so that the hose sleeve can be easily used.
  • the hose may be formed of rubber, a plastic or a textile material.
  • a filling compound in particular a swellable and curable filling compound
  • the outer circumference of the hose sleeve is widened and pressed tightly against the wall of the receiving bore.
  • a sealing element fitting tightly in the receiving bore is produced.
  • the hose sleeve preferably extends over the entire length of the receiving bore or only over a partial area.
  • INS special may also be provided a combination of hose sleeve and metal sleeve, wherein one or more length ranges of the sealing element are each formed of a hose sleeve or a metal sleeve.
  • the invention further comprises a construction pit enclosure, which in particular is produced according to the method described above.
  • the construction pit enclosure according to the invention is characterized in that at at least one vertical butt joint between two adjacent Schlitzwandpanelen in the Umsch conductedungswand a extending to the joint sealing tape receiving bore is formed, and that in the receiving bore a sealing element is introduced for forming a horizontal seal.
  • a preferred development of the construction pit enclosure according to the invention is that a receiving bore with sealing element is arranged on each vertical butt joint.
  • a particularly reliable sealing is achieved according to a development of the invention in that the sealing element extends from an inner side of the enclosing wall at least as far as the joint sealing strip along the vertical butt joint.
  • the sealing element which is arranged horizontally or with a certain helix angle to the horizontal, so a reliable blocking of the vertical butt joint against rising water is achieved.
  • the invention comprises a sealing element for a method or a construction pit enclosure, which have been described above.
  • This is according to the invention characterized in that the sealing element is cylindrical and adapted to a receiving bore in a Umsch conductedungswand a Baugrubenumschmother.
  • the sealing element according to the invention the advantages described above can be achieved in a construction pit enclosure and a method for creating a construction pit enclosure.
  • a preferred embodiment according to the invention is that the sealing element has a solid metal sleeve.
  • the metal sleeve is fitting, in particular with a clearance fit, formed to the diameter of the receiving bore.
  • the solid metal sleeve is firmly and sealingly anchored in the receiving bore by means of a sealant.
  • the sealing element has a flexible hose sleeve, which is preferably filled with a swellable filling compound.
  • a swellable filling compound By swelling the filling compound, the elastic hose sleeve, which may be a rubber or plastic hose in particular, defined in diameter widens, so that the outer circumference of the hose sleeve tight and water-tight against the wall of the receiving bore.
  • the swellable filling compound can harden, so that a reliable and stable anchoring of the sealing element takes place in the enclosing wall.
  • Figure 1 is a cross-sectional view from above of a portion of a Umsch facedungswand with butt joint.
  • Fig. 2 is a cross-sectional view through the section A-A of Fig. 1 with the
  • FIG. 3 shows a schematic cross-sectional view through an enclosing wall with an inserted tubular sealing element
  • FIG. 4 shows a cross-sectional view corresponding to FIG. 3 with an inserted sleeve-shaped sealing element
  • FIG. 5 is a cross-sectional view through a Umsch facedungswand with an introduced first receiving bore.
  • Fig. 8 is a partial cross-sectional view from the side to the cutout of a
  • a construction pit enclosure 10 according to the invention is shown in fragmentary form.
  • the construction pit enclosure 10 has an annularly closed enclosure wall 12, of which only two slotted wall panels 14 according to FIG. 1 are shown partially.
  • the slot wall panels 14 have a substantially rectangular cross section. However, it is also possible to provide oval-shaped or circular cross-sections. Due to the process, the individual slot wall panels 14 are produced separately, with a vertical butt joint 16 forming between two adjacent slot wall panels 14.
  • the vertical butt joint 16 extends from a bottom portion to the upper end of the respective adjacent slot wall panels 14.
  • a joint tape 18 In a central region of the slot wall panels 14 extends transversely to the vertical butt joint 16, a joint tape 18.
  • the joint tape 18 is placed in the creation of the slot wall panels 14, even before the Slot wall panels 14 are cured.
  • the slot wall panels 14 are made in a conventional manner from a mortar or concrete and are optionally provided with a metal reinforcement.
  • the construction pit enclosure 10 has a base plate 20.
  • the bottom plate 20 is also made of concrete in the illustrated embodiment of FIG. 2 and is connected via a projection 22 form-fitting manner with the Umsch widelyungswand 12.
  • a horizontal butt joint 24 is formed, which forms in an annular manner along the enclosing wall 12 to the bottom plate 20.
  • a receiving bore 15 is introduced before creating the bottom plate 22 in the enclosing wall 12 in the region of the vertical butt joint 16.
  • a cylindrical sealing element 30 is inserted through wel- Ches the vertical joint 16 is sealed horizontally.
  • a horizontal seal 28 Adjacent to the sealing element 30, in the illustrated exemplary embodiment, a horizontal seal 28, which is formed as an annular sealing strip, is provided in the lower area of the base plate 20 along the horizontal butt joint 24. The horizontal seal 28 prevents ingress of moisture or water along the annular horizontal butt joint 24 on the bottom plate 20.
  • Fig. 3 is a detail view of the seal according to the invention is shown, wherein in the receiving bore 15 in the slot wall panel 14, a sealing element 30 is inserted, which is designed as a hose sleeve 34.
  • the hose sleeve 34 is completed on the one hand with a bottom.
  • the receiving bore 15 is brought down to the joint tape 18.
  • a sealing washer 36 may be provided from an elastic material. In principle, it is possible to introduce the sealing disc 36 before the creation of the receiving bore 15 with the joint tape 18 or in the created receiving bore 15.
  • the hose sleeve 34 is provided with a fillable filling material, through which the flexible hose sleeve 34 is widened in its circumference and is pressed so tight against the wall of the receiving bore 15.
  • the sealing element 30 is formed as a tubular metal sleeve 32 with a closed bottom portion. The bottom region adjoins the joint tape 18 in the slot wall panel 14 via a sealing washer 36.
  • the metal sleeve 32 is inserted into the receiving bore 15 substantially by means of a press fit, wherein on the outer circumference a sealant, not shown, for sealing the gap between the wall of the receiving bore 15 and the metal sleeve 32 may be provided.
  • the metal sleeve 32 is additionally anchored to the slot wall panel 14 at its end pointing to the inside of the enclosing wall 12 or to the interior of the excavation by means of an annular fastening element 33.
  • the fastener 33 is formed as a flange-shaped retaining ring.
  • the receiving bore 15 is initially introduced only to an intermediate portion 13 in the Umsch widelyungswand 12. Subsequently, a probing bore 19 with a small diameter, wherein the probing bore 19 is preferably carried out by hand. Once the joint sealing tape 18 is reached, the probing hole 19 is terminated and the receiving bore 15 is performed up to the final depth according to the probing hole 19. Then, a sealing washer 36 for sealing any damage to the joint sealing strip 18 and then the sealing element 30, not shown, are used.
  • FIG. 1 An alternative arrangement variant is shown in FIG.
  • the receiving bore 15 is created by the joint sealing tape 18 through.
  • the joint sealing strip 18 is pierced, so that the sealing element to be used takes over the function of the joint sealing strip 18 with.
  • FIGS. 7 and 8 a conventional excavation enclosure 10 'is shown in FIGS. 7 and 8 with an enclosing wall 12', shown only partially, of slotted wall panels 14 'and a floor panel 20'.
  • the vertical butt joints 16 'between adjacent Schlitzwandpanelen 14' are each sealed by a vertical joint sealing strip 18 ', so that no water from the bottom can penetrate into the pit laterally.
  • a horizontal butt joint 24 'formed between the horizontal bottom plate 20' and the vertical enclosing wall 12 ' is sealed by means of a horizontal seal 28'.
  • the enclosing wall 12 ' ends flush with the bottom plate 20'.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)

Abstract

L'invention concerne une enceinte pour trou de fondation et un procédé de fabrication d'une enceinte pour trou de fondation, selon lequel une paroi d'enceinte sensiblement verticale est réalisée dans le sol et est composée de panneaux en parois moulées dont le joint montant vertical est rendu étanche par une bande de joint d'obturation, le sol est excavé dans les limites de la paroi d'enceinte, et une dalle de béton sensiblement horizontale est prévue adjacente à la paroi d'enceinte. Selon l'invention, un orifice de réception est pratiqué au niveau d'au moins un joint montant vertical entre deux panneaux en paroi moulée adjacents, lequel orifice s'étend dans la paroi d'enceinte jusqu'à la bande de joint d'obturation et un élément d'étanchéité est introduit dans l'orifice de réception pour former une étanchéité horizontale.
PCT/EP2016/081441 2016-01-29 2016-12-16 Enceinte pour trou de fondation et procédé servant à élaborer une enceinte pour trou de fondation WO2017129319A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16153356.7A EP3199708B1 (fr) 2016-01-29 2016-01-29 Enceinte de fouille et procédé de fabrication d'une enceinte de fouille
EP16153356.7 2016-01-29

Publications (1)

Publication Number Publication Date
WO2017129319A1 true WO2017129319A1 (fr) 2017-08-03

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ID=55274989

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/081441 WO2017129319A1 (fr) 2016-01-29 2016-12-16 Enceinte pour trou de fondation et procédé servant à élaborer une enceinte pour trou de fondation

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Country Link
EP (1) EP3199708B1 (fr)
WO (1) WO2017129319A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172990B (zh) * 2019-11-11 2021-09-10 浙江省建筑设计研究院 预埋前后排钢筋套筒式预制地下连续墙竖向连接结构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008925C1 (nl) * 1998-03-13 1999-09-14 Alex Blokker Duik En Bergingsb Werkwijze en inrichting voor het vervaardigen van een drukvloer uit beton.
US6164873A (en) 1997-09-12 2000-12-26 Finic B.V. Double-wing deformable stop-end pipe for forming the joining surfaces of concrete-cast wall elements
DE10334730A1 (de) 2003-07-30 2005-02-24 Ed. Züblin Ag Konstruktion einer wasserdichten Innenschale bei einem Bauwerk, welches in Deckelbauweise hergestellt wird und im Grundwasserhorizont einbindet
DE102005052162A1 (de) 2004-11-12 2006-05-18 Ed. Züblin Ag Vorab wärmegedämmte Schlitzwand als Begrenzung eines temperaturhaltenden Speichers für Fluide und Herstellung solcher Speicher
EP2549021B1 (fr) 2011-07-18 2013-09-11 Bauer Spezialtiefbau GmbH Centrale d'accumulation par pompage et son procédé de fabrication
EP2647765A1 (fr) 2012-04-03 2013-10-09 Bauer Spezialtiefbau GmbH Elément de coffrage pour une paroi moulée et procédé de fabrication de cette paroi

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6164873A (en) 1997-09-12 2000-12-26 Finic B.V. Double-wing deformable stop-end pipe for forming the joining surfaces of concrete-cast wall elements
NL1008925C1 (nl) * 1998-03-13 1999-09-14 Alex Blokker Duik En Bergingsb Werkwijze en inrichting voor het vervaardigen van een drukvloer uit beton.
DE10334730A1 (de) 2003-07-30 2005-02-24 Ed. Züblin Ag Konstruktion einer wasserdichten Innenschale bei einem Bauwerk, welches in Deckelbauweise hergestellt wird und im Grundwasserhorizont einbindet
DE102005052162A1 (de) 2004-11-12 2006-05-18 Ed. Züblin Ag Vorab wärmegedämmte Schlitzwand als Begrenzung eines temperaturhaltenden Speichers für Fluide und Herstellung solcher Speicher
EP2549021B1 (fr) 2011-07-18 2013-09-11 Bauer Spezialtiefbau GmbH Centrale d'accumulation par pompage et son procédé de fabrication
EP2647765A1 (fr) 2012-04-03 2013-10-09 Bauer Spezialtiefbau GmbH Elément de coffrage pour une paroi moulée et procédé de fabrication de cette paroi

Also Published As

Publication number Publication date
EP3199708B1 (fr) 2018-12-19
EP3199708A1 (fr) 2017-08-02

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