EP0190409A1 - Parois moulées dans le sol comportant des membranes étanches - Google Patents

Parois moulées dans le sol comportant des membranes étanches Download PDF

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Publication number
EP0190409A1
EP0190409A1 EP85114254A EP85114254A EP0190409A1 EP 0190409 A1 EP0190409 A1 EP 0190409A1 EP 85114254 A EP85114254 A EP 85114254A EP 85114254 A EP85114254 A EP 85114254A EP 0190409 A1 EP0190409 A1 EP 0190409A1
Authority
EP
European Patent Office
Prior art keywords
grooves
tube
outer tube
sealing
connecting elements
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.)
Granted
Application number
EP85114254A
Other languages
German (de)
English (en)
Other versions
EP0190409B1 (fr
Inventor
Aloys Schlütter
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.)
Niederberg-Chemie GmbH
Original Assignee
Niederberg-Chemie 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 Niederberg-Chemie GmbH filed Critical Niederberg-Chemie GmbH
Priority to AT85114254T priority Critical patent/ATE38066T1/de
Publication of EP0190409A1 publication Critical patent/EP0190409A1/fr
Application granted granted Critical
Publication of EP0190409B1 publication Critical patent/EP0190409B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • 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
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18—Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • E02D19/185—Joints between sheets constituting the sealing aprons

Definitions

  • diaphragm walls are z. B. created by filling the excavated earth slots with a thixotropic mass.
  • a thixotropic mass z. B. serve Bentonitschlempe. It is a key.
  • the purpose of the thixotropic mass is to keep the side walls of the earth slot stable.
  • concrete slabs made of waterproof concrete can be introduced or the bentonite slurry filled with a suitable concrete so that the diaphragm wall remains watertight and prevents the passage of adjacent liquids.
  • the special behavior of thixotropic masses facilitates the introduction of concrete slabs or suitable concrete.
  • Thixotropic masses form a relatively solid structure in the rest position. I.e.
  • the diaphragm walls are 15-20 cm wide. However, diaphragm walls with a thickness of 50 cm and more are also used.
  • the effort for such diaphragm walls can be reduced by using sealing sheets made of plastic for the diaphragm walls, which are provided with nubs on one side and provided with a thin layer of in-situ concrete at the construction site, so that slabs are formed which are instead of the usual ones Let the concrete slabs easily sink into the thixotropic mass filling the respective earth slot.
  • the sealing membrane elements are preferably between 1 and 10 m wide and the in-situ concrete layer is between 2 and 3 cm thick.
  • Both PVC soft films and ethylene copolymers (Carbofol) can be used as the waterproofing membrane.
  • the sealing membrane elements are provided at the butt ends with connecting elements which ensure a non-positive and tight connection between the individual sealing membrane elements.
  • Pipes made of a related plastic material can serve as connecting elements.
  • the pipes are welded to the butt ends of the sheets.
  • the diameters of the pipes are dimensioned so that they are inserted into one another. I.e. the diameter of one tube is chosen so that it can be plugged onto the other tube.
  • the larger pipe to be attached is slotted on the outside on one side to such an extent that the sealing membrane welded to the pipe does not hinder the connection process when attached.
  • a solid material can also be used instead of the inner tube.
  • the fit for the two pipes to be inserted into one another is either selected so that a force-locking connection is created just by plugging into one another, or this connection is created when the two sealing membrane elements cannot be avoided with a slight tensile load.
  • each sealing membrane element has the same length of 8 m and the same height of 4 m, which cannot be seen in the drawing due to the cross-sectional representation.
  • a sealing membrane of any length can be produced by joining together the various sealing membrane elements 1. While this results in an excess length compared to the earth slot to be excavated, the sealing membrane is rolled up at one end or the sealing membrane can be cut to length there. Cutting to length is possible with the plastic materials provided and without any noteworthy work.
  • Each geomembrane element 1 has at one end a welded tube 4 made of the same material and at the other end a welded tube 2 made of the same material.
  • the tube 2 is designed so that it can include the tube 4 - as shown in the drawing. This requires an inner diameter that is slightly larger than the outer diameter of the tube 4 and a slot over the entire length of the tube 2. The longitudinal slot enables the tube 2 to slide past the sealing membrane of the sealing membrane element 1 over the tube 4.
  • the sealing membrane elements 1 To assemble the sealing membrane elements 1, these are either erected individually or up to a partial length or the entire length with tubes 2 and 4 inserted into one another. The installation takes place directly on the thixotropic mass (bentonite slurry) of the excavated earth slot. Thereafter, in-situ concrete is applied from the bottom to the nubbed back of the waterproofing membrane. The in-situ concrete is shown in the drawing on one of the sealing membrane elements 1 and is designated by 3. The in-situ concrete is applied in layers, with the individual layers extending over the length of the waterproofing membrane.
  • thixotropic mass bentonite slurry
  • This in-situ concrete application causes the sealing membrane elements to slowly sink into the thixotropic mass, so that the thixotropic mass itself forms a formwork or support for the sealing membrane elements 1 with the sprayed-on in-situ concrete until it is set.
  • the waterproofing membrane can also be weighted down with a steel rail, which causes the waterproofing membrane to sink in.
  • the sealing membrane 1 taking into account the knobs, has a thickness of 4 mm and is therefore in a preferred range of 3 to 5 mm.
  • the tubes 2 and 4 can also each be arranged such that a sealing membrane 1 is provided with a tube 2 at each end and the corresponding sealing membranes are provided with a tube 4 at each end and vice versa.
  • a particularly advantageous application of the diaphragm walls according to the invention is the sealing of landfills, liquid-carrying and liquid-holding systems.
  • landfills there is often the problem of preventing toxins from entering the groundwater from the landfill.
  • earth slots with a depth to a safe subsoil are dug around the landfill or on dangerous sides.
  • the geomembrane elements according to the invention are introduced into the earth slots after filling with bentonite slurry.
  • This method can also be applied to liquid-carrying systems such as river courses and the like.
  • the river water can be kept in his bed with the help of diaphragm walls according to the invention. This is particularly advantageous in dry zones and in sewer construction.
  • Liquid holding systems are e.g. B. ponds or lakes or dams, the liquid to be retained can also be other than water.
  • the geomembrane elements 1 have a length of 0.5 to 2 m and are provided laterally instead of the tubes 2 with welded tubes 6 and instead of the tubes 4 with welded solid material 8.
  • the tubes 6 have grooves or grooves 7 on the inside.
  • the other solid material 8 is provided with webs 9, so that the material 8 with these webs 9 can be inserted into the grooves 7 of the neighboring tube 6 and slide downward therein.
  • a tongue and groove system ensures the sealing of the pipe connections and at the same time serves to stiffen the elements with one another.
  • the diameters of the two nested parts are to be coordinated so that the inner material 8 exerts a kind of wedge effect on the outer tube 6 and the wedges are pressed firmly into the groove. This creates a labyrinth seal.
  • the outer tube 6 and the solid material 8 are preferably made of polyethylene.
  • the polyethylene develops a higher sliding effect at higher pressures. This is extremely beneficial to the press fit according to the invention between the tube 6 and the solid material 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Paleontology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Revetment (AREA)
  • Laminated Bodies (AREA)
EP85114254A 1985-02-07 1985-11-08 Parois moulées dans le sol comportant des membranes étanches Expired EP0190409B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85114254T ATE38066T1 (de) 1985-02-07 1985-11-08 Schlitzwaende mit abdichtungsbahnen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853504119 DE3504119A1 (de) 1985-02-07 1985-02-07 Schlitzwaende mit abdichtungsbahnen
DE3504119 1985-02-07

Publications (2)

Publication Number Publication Date
EP0190409A1 true EP0190409A1 (fr) 1986-08-13
EP0190409B1 EP0190409B1 (fr) 1988-10-19

Family

ID=6261877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85114254A Expired EP0190409B1 (fr) 1985-02-07 1985-11-08 Parois moulées dans le sol comportant des membranes étanches

Country Status (3)

Country Link
EP (1) EP0190409B1 (fr)
AT (1) ATE38066T1 (fr)
DE (2) DE3504119A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112922353A (zh) * 2021-02-01 2021-06-08 中建八局第三建设有限公司 一种钢结构框架外幕墙顺逆结合的施工方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4418629A1 (de) * 1994-05-27 1995-11-30 Sued Chemie Ag Verfahren zur Herstellung von Dichtwänden
CN102505701B (zh) * 2011-09-28 2014-01-29 中国水利水电第七工程局成都水电建设工程有限公司 一种自密实砂浆及其深孔帷幕灌注施工方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR916315A (fr) * 1945-06-12 1946-12-03 Perfectionnements apportés aux palplanches
NL7102851A (fr) * 1971-03-03 1972-09-05
EP0086001A1 (fr) * 1982-02-08 1983-08-17 Volker Stevin Beton- En Waterbouw B.V. Méthode pour la réalisation d'un écran obstruant le passage d'eau souterraine
WO1984003315A1 (fr) * 1983-02-22 1984-08-30 Finic Bv Barriere de protection de l'environnement pour excavations profondes
NL8300596A (nl) * 1983-02-17 1984-09-17 Stork Kst B V Bodemscheidingswand, alsmede bouwelement bestemd voor toepassing bij deze bodemscheidingswand.
DE3416568A1 (de) * 1983-05-10 1984-11-15 Schlegel Corp., Rochester, N.Y. Membransperre gegen unterirdische fluidstroemungen und abschnitt dafuer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR916315A (fr) * 1945-06-12 1946-12-03 Perfectionnements apportés aux palplanches
NL7102851A (fr) * 1971-03-03 1972-09-05
EP0086001A1 (fr) * 1982-02-08 1983-08-17 Volker Stevin Beton- En Waterbouw B.V. Méthode pour la réalisation d'un écran obstruant le passage d'eau souterraine
NL8300596A (nl) * 1983-02-17 1984-09-17 Stork Kst B V Bodemscheidingswand, alsmede bouwelement bestemd voor toepassing bij deze bodemscheidingswand.
WO1984003315A1 (fr) * 1983-02-22 1984-08-30 Finic Bv Barriere de protection de l'environnement pour excavations profondes
DE3416568A1 (de) * 1983-05-10 1984-11-15 Schlegel Corp., Rochester, N.Y. Membransperre gegen unterirdische fluidstroemungen und abschnitt dafuer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112922353A (zh) * 2021-02-01 2021-06-08 中建八局第三建设有限公司 一种钢结构框架外幕墙顺逆结合的施工方法
CN112922353B (zh) * 2021-02-01 2022-04-12 中建八局第三建设有限公司 一种钢结构框架外幕墙顺逆结合的施工方法

Also Published As

Publication number Publication date
DE3565700D1 (en) 1988-11-24
ATE38066T1 (de) 1988-11-15
EP0190409B1 (fr) 1988-10-19
DE3504119A1 (de) 1986-08-07

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