DE912559C - Method for reducing interlock friction when driving sheet piles - Google Patents

Method for reducing interlock friction when driving sheet piles

Info

Publication number
DE912559C
DE912559C DEL12247A DEL0012247A DE912559C DE 912559 C DE912559 C DE 912559C DE L12247 A DEL12247 A DE L12247A DE L0012247 A DEL0012247 A DE L0012247A DE 912559 C DE912559 C DE 912559C
Authority
DE
Germany
Prior art keywords
sheet piles
driving sheet
pile
reducing
friction
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
DEL12247A
Other languages
German (de)
Inventor
Dr-Ing Kurt Lenk
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.)
Wayss and Freytag AG
Original Assignee
Wayss and Freytag 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 Wayss and Freytag AG filed Critical Wayss and Freytag AG
Priority to DEL12247A priority Critical patent/DE912559C/en
Application granted granted Critical
Publication of DE912559C publication Critical patent/DE912559C/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/20—Placing by pressure or pulling power

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Description

Verfahren zur Verminderung der Schloßreibung beim Einrammen von Spundbohlen Die Erfindung betrifft ein Verfahren zur Verminderung der Schloßreibung beim Einrammen von Spundbohlen. Wenn schwache Spundbohlen größerer Länge eingerammt werden, so treten wegen der geringen Steifigkeit solcher Bohlen Ausbiegungen auf, die in der Schloßverbindung starke Reibungskräfte hervorrufen. Auch schon beim Einfädeln zweier Bohlen entstehen derartige Auswirkungen und Reibungskräfte. Zur Verminderung der Ausbiegungen beim Rammen ist es bereits bekanntgeworden, die Bohle mittels einer an ihrem unteren Ende angreifenden Rammjungfer gewissermassen in den Boden hineinzuziehen. Bei Spundbohlen, also Bohlen, die mittels Schloßverbindung ineinandergreifen, genügt aber diese Maßnahme allein nicht, um die Reibungskräfte in der Schloßverbindung um ein genügendes Maß herabzusetzen, da beim Einrammen einer Bohle die bereits gerammte Nachbarbohle durch die Rammschläge Ausbiegungen erleiden kann, die wiederum Reibungskräfte hervorrufen.Method for reducing interlock friction when driving sheet piles The invention relates to a method for reducing lock friction when driving of sheet piles. If weak sheet piles of greater length are driven in, so occur because of the low rigidity of such planks deflections in the Interlock connections cause strong frictional forces. Even when threading two Such effects and frictional forces arise from planks. To reduce the It has already become known to deflect the pile when ramming the screed by means of a Rammjungfer attacking at its lower end to a certain extent pull it into the ground. In the case of sheet piles, i.e. planks that interlock by means of a lock connection, is sufficient but this measure alone does not reduce the frictional forces in the lock connection in order to reduce it to a sufficient extent, since when a plank is driven in, the one that has already been rammed The neighboring pile can suffer from bends due to the ramming, which in turn creates frictional forces cause.

Die Erfindung hilft diesem Übelstand dadurch ab, daß während des Einfädelns und Einrammens der Bohle die bereits eingerammte Nachbarbohle der Wirkung von nach oben gerichteten Zugkräften unterworfen wird. Diese Zugkräfte können z. B. dadurch hervorgerufen werden, daß in das obere Ende der bereits gerammten Bohle ein Zughaken eingehängt wird oder daß das obere Bohlenende gegenüber dem Erdboden abgestützt wird.The invention remedies this drawback by the fact that during the threading and ramming the screed into the already driven neighboring screed for the effect of after is subjected to tensile forces directed upwards. These tensile forces can, for. B. thereby caused that in the upper end of the already rammed screed a draw hook is hung or that the upper end of the plank is supported against the ground will.

Claims (1)

PATENTANSPRUCH: Verfahren zur Verminderung der Schloßreibung beim Einrammen von Spundbohlen, bei dem die zu rammende Bohle durch Rammschläge auf eine am unteren Ende der Bohle angreifende Jungfer in den Boden gezogen wird, dadurch gekennzeichnet, daB während des Einfädelns und Einrammens der Bohle die bereits eingerammte 1N achbarbohle der Wirkung von nach oben gerichteten Zugkräften unterworfen wird. Angezogene Druckschriften: Deutsche Patentschrift Nr. 30.a.757. PATENT CLAIM: A method for reducing interlock friction when driving sheet piles, in which the pile to be rammed is pulled into the ground by ramming a maiden attacking the lower end of the pile, characterized in that the 1N that has already been driven in during the threading and ramming of the pile achbarbohle is subjected to the effect of upward tensile forces. Referenced publications: German Patent No. 30.a.757.
DEL12247A 1952-05-01 1952-05-01 Method for reducing interlock friction when driving sheet piles Expired DE912559C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL12247A DE912559C (en) 1952-05-01 1952-05-01 Method for reducing interlock friction when driving sheet piles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL12247A DE912559C (en) 1952-05-01 1952-05-01 Method for reducing interlock friction when driving sheet piles

Publications (1)

Publication Number Publication Date
DE912559C true DE912559C (en) 1954-05-31

Family

ID=7259119

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL12247A Expired DE912559C (en) 1952-05-01 1952-05-01 Method for reducing interlock friction when driving sheet piles

Country Status (1)

Country Link
DE (1) DE912559C (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE304757C (en) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE304757C (en) *

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