EP0740033A1 - Dispositif pour l'application d'une méthode d'injection de trous forés - Google Patents

Dispositif pour l'application d'une méthode d'injection de trous forés Download PDF

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Publication number
EP0740033A1
EP0740033A1 EP96106553A EP96106553A EP0740033A1 EP 0740033 A1 EP0740033 A1 EP 0740033A1 EP 96106553 A EP96106553 A EP 96106553A EP 96106553 A EP96106553 A EP 96106553A EP 0740033 A1 EP0740033 A1 EP 0740033A1
Authority
EP
European Patent Office
Prior art keywords
tube
injection
outlet
nuts
sleeve
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Withdrawn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
EP96106553A
Other languages
German (de)
English (en)
Inventor
Gerd Dipl.-Ing. Pleyers
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0740033A1 publication Critical patent/EP0740033A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0203—Arrangements for filling cracks or cavities in building constructions
    • E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection

Definitions

  • the present invention relates to a device for carrying out a borehole injection method according to the preamble of patent claim 1.
  • Chemical well injection methods in particular pressure injection methods, play a leading role among the known methods based on mechanical, electrophysical or chemical principles for retrofitting a horizontal barrier against rising wall moisture.
  • the packer consists of a tube 2 with an external thread.
  • the following components are successively screwed or plugged onto this tube 2: a nut 3, a washer 4, a spacer tube 5, a washer 6, a rubber sleeve 7, a washer 8 and a nut 15 '.
  • the rubber sleeve 7 of the packer inserted into the borehole is compressed by tightening the nut 3, as a result of which it spreads radially into the borehole.
  • the injection solution is pressed through a tube coupling (not shown) onto the valve nipple 1 through the tube 2 into the borehole and fills it first off. Only then does the injection solution penetrate into the surrounding masonry area. However, if there is a major crack or cavity in the area of the borehole, the solution for injection will drain there. An attempt must then be made to either fill the cavity with cement suspension or to bypass it through a new hole, which is often not possible.
  • DE-PS 588 407 It is also known from DE-PS 588 407 a method for injecting a detergent into damaged structures, rock or the like. This is to prevent the detergent flow from seeking the path of least resistance and flushing only larger cracks, gaps or cavities become. To solve this problem, it is proposed there to carry out the injection in an area delimited in the direction of the borehole.
  • the device described there for carrying out the method, in which the flushing agent emerges between two spaced-apart inflatable bellows has considerable disadvantages. It is much too complicated to set up and operate, since it requires additional units such as a compressed air or hydraulic pump for its use, which must also be connected with hoses. These additional devices are then also time-consuming to clean. It is too susceptible to use in harsh everyday construction site situations. On page 2, line 105 it is described that the hoses must even be protected from sharp drill holes. The hemp net described on page 2, line 101 ff. Also easily sticks to the wall when it is inserted and exported into the borehole. The thin compressed air lines are susceptible to mechanical deformation and blockages. Furthermore, it is not easy to adapt to different depths of use.
  • the outlet sleeve has a plurality of openings which are regularly or irregularly distributed on the circumference and in the longitudinal direction thereof and are designed as bores, elongated holes, slots or the like.
  • outlet sleeve is designed as a (commercially available) perforated tube.
  • the tube can have a circumferential groove in the area of the outlet opening / openings.
  • the elastic sleeves consist of a pressure hose.
  • the tube is provided with an external thread along its entire length, there is a further preferred embodiment.
  • elastic sleeves, outlet sleeves and spacer tubes of different lengths can be combined with one another in a modular principle, without the position of the parts being restricted by the position of the external thread. This makes it easy to adapt to different conditions on the construction site.
  • a spacer tube between the outer nut and the one elastic sleeve.
  • the packer 20 consists of a tube 2 with an external thread.
  • This tube 2 has at its outer end an internal thread into which a valve nipple 1 is screwed.
  • the tube 2 is closed at its inner end by a screwed cap nut 15.
  • the following components are successively screwed or plugged onto the tube 2 between the valve nipple 1 and the cap nut 15: a nut 3, a washer 4, a spacer tube 5, a washer 6, a rubber sleeve 7, a washer 8, an outlet sleeve 11, one Washer 12, a further rubber sleeve 13 and a washer 14.
  • the tube 2 also has an outlet opening 10 in the region of the outlet sleeve 11, i.e. below this, from which the injection solution introduced into the injection nipple 1 emerges.
  • Several or even only one outlet opening 10 can be provided in the tube 2. In the latter case in particular, it makes sense if the tube 2 and / or the outlet sleeve 11 then has a circumferential groove in this area, through which the injection solution is distributed in the circumferential direction.
  • the outlet sleeve 11 is provided with slots 9 through which the injection solution distributed under the outlet sleeve 11 can exit.
  • These slots 9 can be made in the usual way, e.g. introduced into the outlet sleeve 11 by cutting, filing, milling etc. or together with this in a molding process such as e.g. Injection molding.
  • the spacer sleeve 5 can be dispensed with in those applications in which the injection solution has to be introduced into an area near the outer surface of the wall and it is therefore not necessary to insert the injection packer 20 far into the borehole.
  • the spacer sleeve 5 (and the tube 2) must be chosen so long that the nut 3 can still be tightened when the packer 20 is in the borehole.
  • the spacer sleeve 5 is preferably cut to the required length from commercially available pipe material.
  • FIG. 2 A further embodiment of an injection packer 22 is shown in FIG. 2, with the same parts bearing the same reference numbers.
  • This injection packer 22 differs from that shown in FIG. 1 in that it has a perforated tube 23 with holes 24 instead of the slotted outlet sleeve 11.
  • the perforated tube 23 is therefore particularly suitable as an outlet sleeve, since it is a standardized prefabricated component that only has to be cut to the desired length on the construction site.
  • Pieces of commercially available pressure hoses are preferably used as rubber sleeves 7 and 13 in both embodiments, since they can easily be replaced by cutting off a hose supply when worn, etc. So that the diameter of the rubber sleeves 7 and 13 increases evenly when the nut 3 is tightened, they are of the same length and consist of the same material. In special applications, however, different rubber sleeves can also be used with regard to the length, the diameter, the wall thickness and / or the material.
  • a borehole 17 is made in the masonry 16 to be renovated.
  • the rubber sleeves 7 and 13 are pressed together and spread into the borehole 17, as a result of which the injection packer 20 is firmly clamped therein.
  • the injection solution can then be pressed in through the valve nipple 1.
  • the injection solution is stopped, the injection packer 20 is released again and either further inserted into or withdrawn from the borehole 17 until the outlet slots 9 of the outlet sleeve 11 are in an area which does not communicate with the cavity 18 or the crack 19 .
  • the injection packer 20 is clamped again and the injection route continues.
  • the optimal injection zone can also be determined by other methods, e.g. Preliminary investigations with core drilling or similar and also in adaptation to known cavities such as between two-layer masonry.
  • a decisive advantage over the conventional injection packer is the defined delimitation of the injection zone.
  • the two rubber sleeves 7 and 13 can penetrate into the surrounding porous masonry 16 in borehole 17 only in the area of the longitudinally slotted outlet sleeve 11.
  • an injection packer built in a modular system tubes of different lengths, spacer sleeves, rubber sleeves and outlet sleeves
  • an adjustment can be made on site.
  • the size and position of the injection zone can be adapted in a simple manner, for example to cavities, cracks or to existing double-layer masonry. Cavities are bridged in a targeted manner, saving valuable injection solution.
  • targeted solutions can be introduced into the porous environment or, for example, cement suspensions into cavities.
  • Another considerable advantage is that only the forces caused by the diameter increase of the rubber sleeves 7 and 13 act on the masonry 16.
  • the injection packer 20 cannot break out of the masonry 16 so easily, particularly in the area near the masonry outside.
  • the device according to the invention for carrying out the method which has been explained above by way of example with reference to preferred embodiments, achieves the above object in a simple and particularly economical manner.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
EP96106553A 1995-04-29 1996-04-25 Dispositif pour l'application d'une méthode d'injection de trous forés Withdrawn EP0740033A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19515816 1995-04-29
DE19515816A DE19515816C1 (de) 1995-04-29 1995-04-29 Vorrichtung zur Durchführung eines Bohrlochinjektionsverfahrens

Publications (1)

Publication Number Publication Date
EP0740033A1 true EP0740033A1 (fr) 1996-10-30

Family

ID=7760702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106553A Withdrawn EP0740033A1 (fr) 1995-04-29 1996-04-25 Dispositif pour l'application d'une méthode d'injection de trous forés

Country Status (2)

Country Link
EP (1) EP0740033A1 (fr)
DE (1) DE19515816C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2334072A (en) * 1997-09-03 1999-08-11 Michael Edward Brown Dispenser and delivery arrangement of a flowable preparation
EP0901626B1 (fr) * 1996-05-24 1999-11-17 Gerd Dipl.-Ing. Pleyers Procede et dispositif pour la mesure de l'humidite dans les materiaux de construction

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338592A1 (de) * 1973-07-30 1975-02-13 Alfons Harke Verschalungselement zum buendigen ausfuellen von loechern, rissen oder dgl
GB2137273A (en) * 1983-03-30 1984-10-03 Alan Geoffrey Barnett Improvements in or relating to wall ties
EP0351668A1 (fr) * 1988-07-15 1990-01-24 Mächtle GmbH Goujon pour façades
GB2228520A (en) * 1989-02-28 1990-08-29 Marcrist Ind Ltd Wall tie
WO1993023640A1 (fr) * 1992-05-13 1993-11-25 Rascor Spezialbau Gmbh Procede visant a edifier des murs en beton en utilisant des coffrages precontraints et dispositif permettant la mise en ×uvre dudit procede

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883196A (en) * 1930-01-20 1932-10-18 Louis S Wertz Process of repairing masonry structures
DE588407C (de) * 1932-03-27 1933-11-24 Werke Kiel Akt Ges Deutsche Verfahren zum Einpressen eines Spuelmittels in schadhafte Bauwerke, Gestein o. dgl.
DE1534902C3 (de) * 1965-11-05 1975-08-14 Deutsche Solvay-Werke Gmbh, 5650 Solingen Verfahren zum Abdichten und Füllen von Rissen, Fehlerstellen und dgl. in Bauteilen bzw. Bauwerken sowie Vorrichtung zur Durchführung des Verfahrens
DE3117286A1 (de) * 1981-04-30 1982-11-18 Bau + Silikat Chemie GmbH, 8000 München Vorrichtung zum einpressen von injektionsgut
DE8229583U1 (de) * 1982-10-21 1984-03-29 IPA-Bauchemie GmbH, 8000 München Injektionsanker zum einpressen von injektionsmaterial in loecher von gesteinen, bauwerkteilen, erzgaengen, erdformationen, salzstoecken und dgl.
DE3929848C3 (de) * 1989-09-08 1997-07-17 Pflieger Lieselotte Injektionsschlauch für abzudichtende Fugen in Betonbauwerken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338592A1 (de) * 1973-07-30 1975-02-13 Alfons Harke Verschalungselement zum buendigen ausfuellen von loechern, rissen oder dgl
GB2137273A (en) * 1983-03-30 1984-10-03 Alan Geoffrey Barnett Improvements in or relating to wall ties
EP0351668A1 (fr) * 1988-07-15 1990-01-24 Mächtle GmbH Goujon pour façades
GB2228520A (en) * 1989-02-28 1990-08-29 Marcrist Ind Ltd Wall tie
WO1993023640A1 (fr) * 1992-05-13 1993-11-25 Rascor Spezialbau Gmbh Procede visant a edifier des murs en beton en utilisant des coffrages precontraints et dispositif permettant la mise en ×uvre dudit procede

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0901626B1 (fr) * 1996-05-24 1999-11-17 Gerd Dipl.-Ing. Pleyers Procede et dispositif pour la mesure de l'humidite dans les materiaux de construction
GB2334072A (en) * 1997-09-03 1999-08-11 Michael Edward Brown Dispenser and delivery arrangement of a flowable preparation
GB2334072B (en) * 1997-09-03 2002-01-02 Michael Edward Brown Delivery arrangement for use with a dispenser of a flowable preparation

Also Published As

Publication number Publication date
DE19515816C1 (de) 1997-02-13

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