DE3226113C1 - Process for producing a waterproof wall of prefabricated components in the subterraneous curtain process - Google Patents

Process for producing a waterproof wall of prefabricated components in the subterraneous curtain process

Info

Publication number
DE3226113C1
DE3226113C1 DE19823226113 DE3226113A DE3226113C1 DE 3226113 C1 DE3226113 C1 DE 3226113C1 DE 19823226113 DE19823226113 DE 19823226113 DE 3226113 A DE3226113 A DE 3226113A DE 3226113 C1 DE3226113 C1 DE 3226113C1
Authority
DE
Germany
Prior art keywords
cement
bentonite
bentonite suspension
producing
suspension
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.)
Expired
Application number
DE19823226113
Other languages
German (de)
Inventor
Giselher Dipl.-Ing. 6940 Weinheim Beinbrech
Helmut 6800 Mannheim Hilbert
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.)
Bilfinger SE
Original Assignee
Bilfinger und Berger Bau AG
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 Bilfinger und Berger Bau AG filed Critical Bilfinger und Berger Bau AG
Priority to DE19823226113 priority Critical patent/DE3226113C1/en
Application granted granted Critical
Publication of DE3226113C1 publication Critical patent/DE3226113C1/en
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
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/20—Bulkheads or similar walls made of prefabricated parts and concrete, including reinforced concrete, in situ

Abstract

From a slot in the soil which is filled with a pure bentonite suspension and into which prefabricated plates have been introduced, the remaining bentonite suspension is transferred by pumping around in zones and, at the same time, an agent, for example cement, which effects hardening of the bentonite suspension is mixed in. The proportion of cement to be admixed differs depending on the ultimate strength which is to be reached by the then hardening bentonite/cement suspension in the individual regions and is restricted to the quantity required for this purpose.

Description

Patentansprüche: 1. Verfahren zur Herstellung einer wasserdichten Fertigteilwand im Schlitzwandverfahren, wozu Fertigteilplatten in einen abschnittsweise hergestellten, mit Bentonitsuspension gefüllten Bodenschlitz aneinandergereiht eingebracht werden und danach der im Bodenschlitz verbliebenen Bentonitsuspension ein Mittel zu ihrer Erhärtung beigemischt wird, dadurch gekennzeichnet, daß die Bentonitsuspension innerhalb eines SchlitzwandabschnittS in waagerechten Bereichen unterschiedlicher Höhenlagen durch ein Gemisch von Bentonitsuspension plus Mittel zu ihrer Erhärtung ersetzt wird, wozu in den einzelnen Bereichen die der dort zu erbringenden Endfestigkeit entsprechende Menge des Mittels zur Erhärtung beigemischt wird.Claims: 1. A method for producing a waterproof Prefabricated wall in the diaphragm wall method, including prefabricated panels in sections produced, filled with bentonite suspension bottom slot introduced in a row and then the bentonite suspension remaining in the bottom slot an agent is added to their hardening, characterized in that the bentonite suspension within a diaphragm wall section different in horizontal areas Altitudes by a mixture of bentonite suspension plus means for its hardening is replaced, including the final strength to be achieved in the individual areas The appropriate amount of the hardening agent is added.

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Bentonitsuspension jeweils entlang der Unterkante des zu behandelnden Bereichs abgesaugt und nach Beimischung des das Erhärten bewirkenden Mittels entlang der Oberkante dieses Bereichs wieder eingeleitet wird. 2. The method according to claim 1, characterized in that the bentonite suspension sucked off along the lower edge of the area to be treated and after admixture the hardening agent along the upper edge of this area again is initiated.

3. Verfahren nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Bentonitsuspension Zement als Mittel zu ihrer Erhärtung beigemischt wird.. 3. The method according to claims 1 and 2, characterized in that that cement is added to the bentonite suspension as a means of hardening it ..

Die Erfindung betrifft ein Verfahren zur Herstellung einer wasserdichten Fertigteilwand im Schlitzwandverfahren, wie sie als wasserdichte Stützwände gegen den anstehenden Erddruck, z. B. bei der Herstellung von Geländeeinschnitten, zum Durchführen einer Straße, von tiefen Baugruben etc. erforderlich sind. The invention relates to a method for producing a waterproof Precast wall using the diaphragm wall method as opposed to watertight retaining walls the upcoming earth pressure, e.g. B. in the production of terrain cuts, for Carrying out a road, deep construction pits, etc. are required.

Aus der AT-PS 358 997 ist es bekannt, bei der Herstellung einer Fertigungsschlitzwand nach der Fertigstellung des Aushubes ein Fertigteil in den Schlitz einzubringen und die Bentonitsuspension durch ein Füllmaterial zu ersetzen, das die Aufgabe hat, die kraftschlüssige Verbindung zwischen Boden und Fertigungsteil herzustellen. Als Füllmaterial ist ein Bentonitzementgemisch genannt. From AT-PS 358 997 it is known in the manufacture of a manufacturing diaphragm wall After the excavation has been completed, insert a prefabricated part into the slot bring in and to replace the bentonite suspension with a filling material that has the task of to establish the positive connection between the floor and the production part. as Filling material is called a bentonite cement mixture.

Die vorliegende Erfindung hat zur Aufgabe, ein Verfahren zur Herstellung einer Schlitzwand in Fertigteilbauweise zu erbringen, bei der das in den Bodenschlitz eingebrachte Füllmaterial hinsichtlich seiner Festigkeit den jeweiligen Erfordernissen von oben nach unten in Streifen variierend eingebracht werden soll. The object of the present invention is to provide a method of production to provide a diaphragm wall in prefabricated construction, in which the in the bottom slot introduced filling material with regard to its strength to the respective requirements should be introduced in strips varying from top to bottom.

Diese Aufgabe wird erfindungsgemäß mit den im Kennzeichen des Hauptanspruchs angegebenen Mitteln gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche. According to the invention, this object is given in the characterizing part of the main claim specified means resolved. Advantageous embodiments of the invention are the subject of the subclaims.

Mit dem erfindungsgemäßen Verfahren ergibt sich als Vorteil, daß über die Höhe des Bodenschlitzes jeweils nur soviel das Erhärten der dort eingefüllten Bentonitsuspension bewirkendes Mittel verwendet wird, wie zum Erreichen der erforderlichen Festigkeit in den verschiedenen Höhenbereichen der Schlitzwand erforderlich ist. With the method according to the invention there is an advantage that over the height of the bottom slot only so much the hardening of the filled there Bentonite suspension inducing agent is used as required to achieve the required Strength in the various height ranges of the diaphragm wall is required.

Die Erfindung ist nachstehend anhand der Zeichnung beispielsweise beschrieben. Es zeigt F i g. 1 einen Längsschnitt durch die Schlitzwand, F i g. 2 einen Querschnitt durch die Schlitzwand. The invention is illustrated below with reference to the drawing, for example described. It shows F i g. 1 shows a longitudinal section through the diaphragm wall, FIG. 2 shows a cross section through the trench wall.

In den mit reiner Bentonitsuspension gefüllten Bodenschlitz 1 werden wandbildende Fertigteilplatten 2 eingehängt. Mit einer Dickstoffpumpe 3 wird aus der Unterkante 4 des zu behandelnden Bereichs 5, hier z. B. In the bottom slot 1 filled with pure bentonite suspension wall-forming precast panels 2 suspended. With a thick matter pump 3 is off the lower edge 4 of the area to be treated 5, here z. B.

Claims (1)

aus dem Fußbereich, die noch reine Bentonitsuspension angesaugt und tangential in einen runden Mischbehälter 6 eingepumpt. Über eine an den Mischbehälter 6 angeschlossene Schleuse 7 mit oberem und unterem Schieber wird Zement in den Förderstrom der Pumpe eingemischt, der dann über die Druckleitung 8 mit Abzweigungen 9, 10, 11, 12 entlang der Oberkante 13 des zu behandelnden Bereichs 5 ausströmt, dort erneut angesaugt und zur intensiven Vermischung mehrfach wie beschrieben umgepumpt wird.from the foot area, the still pure bentonite suspension is sucked in and pumped tangentially into a round mixing container 6. Via one to the mixing container 6 connected sluice 7 with upper and lower slide, cement is in the delivery stream mixed in with the pump, which is then connected to branches 9, 10, 11, 12 flows out along the upper edge 13 of the area 5 to be treated, there again sucked in and pumped around several times as described for intensive mixing.
DE19823226113 1982-07-13 1982-07-13 Process for producing a waterproof wall of prefabricated components in the subterraneous curtain process Expired DE3226113C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19823226113 DE3226113C1 (en) 1982-07-13 1982-07-13 Process for producing a waterproof wall of prefabricated components in the subterraneous curtain process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823226113 DE3226113C1 (en) 1982-07-13 1982-07-13 Process for producing a waterproof wall of prefabricated components in the subterraneous curtain process

Publications (1)

Publication Number Publication Date
DE3226113C1 true DE3226113C1 (en) 1983-11-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823226113 Expired DE3226113C1 (en) 1982-07-13 1982-07-13 Process for producing a waterproof wall of prefabricated components in the subterraneous curtain process

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Country Link
DE (1) DE3226113C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627872A1 (en) * 1986-08-16 1988-02-18 Zueblin Ag Mixing apparatus for constructing a diaphragm wall
DE19530827A1 (en) * 1995-08-22 1997-02-27 Bauer Spezialtiefbau Slurry cutoff trenching as two-phase lift and binder-infilling operation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE869177C (en) * 1951-08-02 1953-04-20 Hans Dr-Ing Lorenz Process for the production of watertight basic structures of all kinds
DE2121893A1 (en) * 1970-06-16 1971-12-23 Soletanche, Paris Method of making a sealed continuous wall
DE2142894A1 (en) * 1970-10-15 1972-04-20 Soletanche, Paris Sealed continuous wall as a foundation or civil engineering plant and process for their production
DE1784137B2 (en) * 1968-07-11 1976-02-12 Grün & Bilfinger AG, 6800 Mannheim PROCESS FOR PRODUCING SLOTTED WALLS FROM CONCRETE OR REINFORCED CONCRETE
AT358997B (en) * 1976-08-31 1980-10-10 Mischek Fertigbau Aktiengesell METHOD FOR PRODUCING A SLOT WALL

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE869177C (en) * 1951-08-02 1953-04-20 Hans Dr-Ing Lorenz Process for the production of watertight basic structures of all kinds
DE1784137B2 (en) * 1968-07-11 1976-02-12 Grün & Bilfinger AG, 6800 Mannheim PROCESS FOR PRODUCING SLOTTED WALLS FROM CONCRETE OR REINFORCED CONCRETE
DE2121893A1 (en) * 1970-06-16 1971-12-23 Soletanche, Paris Method of making a sealed continuous wall
DE2142894A1 (en) * 1970-10-15 1972-04-20 Soletanche, Paris Sealed continuous wall as a foundation or civil engineering plant and process for their production
AT358997B (en) * 1976-08-31 1980-10-10 Mischek Fertigbau Aktiengesell METHOD FOR PRODUCING A SLOT WALL

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627872A1 (en) * 1986-08-16 1988-02-18 Zueblin Ag Mixing apparatus for constructing a diaphragm wall
DE19530827A1 (en) * 1995-08-22 1997-02-27 Bauer Spezialtiefbau Slurry cutoff trenching as two-phase lift and binder-infilling operation
DE19530827C2 (en) * 1995-08-22 1999-04-01 Bauer Spezialtiefbau Method and device for producing diaphragm walls

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8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee