DE655614C - Process for the production of place posts from concrete - Google Patents

Process for the production of place posts from concrete

Info

Publication number
DE655614C
DE655614C DEA77415D DEA0077415D DE655614C DE 655614 C DE655614 C DE 655614C DE A77415 D DEA77415 D DE A77415D DE A0077415 D DEA0077415 D DE A0077415D DE 655614 C DE655614 C DE 655614C
Authority
DE
Germany
Prior art keywords
concrete
pipe
production
liquid
vibrations
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
DEA77415D
Other languages
German (de)
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.)
PAOLO ALBERTI
Original Assignee
PAOLO ALBERTI
Publication date
Priority to DEA77415D priority Critical patent/DE655614C/en
Application granted granted Critical
Publication of DE655614C publication Critical patent/DE655614C/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/04Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts

Description

Verfahren zur Herstellung",yon Ortpfählen aus Beton Es ist bereits bekannt, bei der Herstellung von Ortpfählen aus Beton den in das Vortreibrohr eingebrachten Beton durch Eintauchen von schwingungserzeugenden Rüttelgeräten oder durch Beklopfen des Vortreibrohres zu verdichten. Die Erschütterungen des Rohres übertragen sich aber nur unvollkommen auf dien Beton und werden infolge der festen Umklammerung des Rohres durch den Boden stark gedämpft. Die Verdichtung der Betonschüttungen durch eintauchende Rüttelgeräte ist nicht überall anwendbar und insbesondere nicht bei dem vorliegenden Verfahren, das sich darauf bezieht, daß der Beton mittels einer stets in den bereits eingebrachten Beton endigenden Leitung mit dem notwendigen überdruck ,eingebracht wird.Method of manufacturing "of concrete piles It is already known, in the manufacture of cast-in-place piles made of concrete, the one introduced into the jacking pipe Concrete by immersing vibration generating devices or by knocking on it of the jacking pipe to compress. The vibrations of the pipe are transmitted but only imperfectly on the concrete and are due to the firm grip of the pipe is strongly damped by the ground. The compaction of the concrete fill by submerged vibrators is not applicable everywhere and especially not in the present method, which relates to the fact that the concrete by means of a always in the already introduced concrete ending pipe with the necessary overpressure, is introduced.

Nach der Erfindung wird die Übertragung der hochfrequenten Schwingungen durch die Flüssigkeitssäule bewirkt, welche das Rohr anfüllt und über dem Beton steht. Die in der Flüssigkeitssäule erzeugten Schwingungen übertragen sich mit großer Gleichmäßigkeit über die praktisch nicht zusammendrückbare Wassersäule auf die darunterliegende Betonmasse. Sie verleihen dieser eine starke Verdichtung und bewirken, daß der Beton in alle Hohlräume und Unebenheiten des umgebenden Bodens e.aindringt.According to the invention, the transmission of high-frequency vibrations caused by the column of liquid that fills the pipe and above the concrete stands. The vibrations generated in the column of liquid are transmitted at a great rate Uniformity over the practically non-compressible water column on the one below Concrete mass. They give this a strong compaction and cause the concrete penetrates into all cavities and unevenness in the surrounding floor.

Um die Erfindung zu erläutern, ist sie auf der Zeichnung meinem Ausführungsbeispiel dargestellt. Abb. i zeigt die Verhältnisse zu Beginn und Abb. 2 zum Schluß der Pfahlherstellung.To explain the invention, it is my embodiment on the drawing shown. Fig. I shows the situation at the beginning and Fig. 2 at the end of the pile production.

Das Vortreibrohr i ist in üblicher Weise ,in den Bodeneingegraben. Ein erster Guß Beton wird dann eingeführt, um einen unteren Abschluß 4 zu bilden. Der Beten wird mittels der Leitung 2 durch Pumpen oder andere geeignete Vorrichtungen, welche vorteilhafterweise unmittelbar auf dem Rohr angeordnet sind, unter Druck zugeführt. Dann läßt man in das Vortreibrohr so viel Wasser oder eine .andere Flüssigkeit durch das Rohr 3 ein, daß der freie Raum-5 ganz gefüllt ist. Die verwendete Flüssigkeit kann noch einen anderen geeigneten Stoff in Lösung oder Suspension enthalten. Im oberen Teil des Vortreibrohres und in Berührung mit der Flüssigkeitssäule ist bei 6 ,ein beliebiges bekanntes Rüttelgerät angeordnet, welches geeignet ist, der Flüssigkeit hochfrequente Schwingungen zu erteilen. Dieses Rüttelgerät wird in Tätigkeit gesetzt, sobald das Vortreibrohr mit der Flüssigkeit vollkommen gefüllt ist. Es bleibt während des allmählichen Eindringens, des Betons durch das Rohr 2 in Tätigkeit, dessen. Mündung stets etwa in Höhe des unteren Endes des Vortreibrohres gehalten wird.The propulsion pipe i is buried in the ground in the usual way. A first pour of concrete is then poured in to form a lower end 4. The prayer is carried out by means of the line 2 by pumps or other suitable devices, which are advantageously arranged directly on the pipe, under pressure fed. Then as much water or some other liquid is allowed into the propulsion pipe through the pipe 3 that the free space-5 is completely filled. The liquid used may contain another suitable substance in solution or suspension. in the upper part of the propulsion pipe and in contact with the liquid column is at 6, any known vibrating device is arranged, which is suitable for the liquid to give high frequency vibrations. This vibrator is put into action, as soon as the propulsion pipe is completely filled with the liquid. It stays during of the gradual penetration, of the concrete through the pipe 2 in action, of which. Muzzle is always held approximately at the level of the lower end of the propulsion pipe.

Wenn vor Beginn des. Betonierens in bekannter Weise eine Eisenbewehrung 7 angeordnet wurde, wird diese fest in den Beton !eingeschlossen.If before the start of concreting, iron reinforcement in a known manner 7, it is firmly enclosed in the concrete!

Infolge des auf den Beton in bekannter Weise ausgeübten verstärkten Druckes hebt sich das Vortreibrohr allmählich in dem Maße, in dem die Betonierung des Pfahlschaftes nach oben vorwärts geht. In Abb.2 ist dargestellt, wie .der gegossene Pfahl 4' aus dem Vertreibrohr heraustritt und der umgebende Boden dem Betonüberdruck nachgibt. Naturgemäß kann das allmähliche Wiedergewinnen des Vortreibrohres durch geeignete Vorrichtungen, z. B. durch Benutzung einer Winde, unterstützt werden.As a result of the reinforcement exerted on the concrete in a known manner The jacking pipe rises gradually to the extent to which the concrete is poured of the stake shaft goes up and forward. Figure 2 shows how the cast Pile 4 'emerges from the expeller pipe and the surrounding soil is exposed to the concrete overpressure gives way. Naturally, the progressive recovery of the jacking pipe can take place through suitable devices, e.g. B. by using a winch can be supported.

Um das Armfließen des Betons aus dem Rohr 2 zu erleichtern, kann man dieses Rohr ebenfalls geeigneten Schwingungen unterwerfen.To make it easier for the concrete to flow out of the pipe 2, one can subject this pipe to suitable vibrations as well.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Ortpfählen aus. Beton, bei denen der Beton mittels einer in dem bereits eingebrachten Beton endigenden Leitung in das mit Wasset .oder mit einer anderen Flüssigkeit gefüllte Vortreibrohr unter Druck eingebracht wird, dadurch gekennzeichnet, daß die über dem Beton Stehende Flüssigkeitssäule während der Einleitung des Betons in hochfrequente Schwingungen versetzt wird, so. daß der unter dem Einfluß der Schwingungen der Wassersäule stehende Beton stark verdichtet wird.PATENT CLAIM: Process for the production of in-place piles from. Concrete, in which the concrete ends by means of a in the concrete that has already been introduced Line into the propulsion pipe filled with water or another liquid is introduced under pressure, characterized in that the standing above the concrete Column of liquid during the introduction of the concrete into high-frequency vibrations is moved so. that the one under the influence of the vibrations of the water column Concrete is heavily compacted.
DEA77415D Process for the production of place posts from concrete Expired DE655614C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA77415D DE655614C (en) Process for the production of place posts from concrete

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA77415D DE655614C (en) Process for the production of place posts from concrete

Publications (1)

Publication Number Publication Date
DE655614C true DE655614C (en) 1938-01-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
DE (1) DE655614C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974948C (en) * 1951-04-15 1961-06-08 Wilhelm Dipl-Ing Degen Process to improve the load-bearing capacity of natural soil layers and artificial heaps by introducing load-bearing material under rocking
DE975428C (en) * 1949-06-30 1961-11-23 Ignaz Dipl-Ing Zeissl Device for the production of in-situ concrete piles
US3060694A (en) * 1957-10-31 1962-10-30 Holmpress Piles Ltd Reinforced concrete piles
DE3400741A1 (en) * 1984-01-11 1985-07-18 Stump Bohr Gmbh, 8045 Ismaning Method and device for producing structural elements in foundation soil, such as piles, injection anchors, trench walls or the like
DE3410830A1 (en) * 1984-03-23 1985-10-03 Stump Bohr Gmbh, 8045 Ismaning Method of producing construction elements in foundation soil, such as piles, anchors, trench walls or the like, and an apparatus for carrying out this method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975428C (en) * 1949-06-30 1961-11-23 Ignaz Dipl-Ing Zeissl Device for the production of in-situ concrete piles
DE974948C (en) * 1951-04-15 1961-06-08 Wilhelm Dipl-Ing Degen Process to improve the load-bearing capacity of natural soil layers and artificial heaps by introducing load-bearing material under rocking
US3060694A (en) * 1957-10-31 1962-10-30 Holmpress Piles Ltd Reinforced concrete piles
DE3400741A1 (en) * 1984-01-11 1985-07-18 Stump Bohr Gmbh, 8045 Ismaning Method and device for producing structural elements in foundation soil, such as piles, injection anchors, trench walls or the like
DE3410830A1 (en) * 1984-03-23 1985-10-03 Stump Bohr Gmbh, 8045 Ismaning Method of producing construction elements in foundation soil, such as piles, anchors, trench walls or the like, and an apparatus for carrying out this method

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