AT46833B - Procedure for lowering groundwater in construction pits. - Google Patents
Procedure for lowering groundwater in construction pits.Info
- Publication number
- AT46833B AT46833B AT46833DA AT46833B AT 46833 B AT46833 B AT 46833B AT 46833D A AT46833D A AT 46833DA AT 46833 B AT46833 B AT 46833B
- Authority
- AT
- Austria
- Prior art keywords
- procedure
- construction pits
- groundwater
- posts
- lowering
- Prior art date
Links
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
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Verfahren zum Absenken von Grundwasser in Baugruben.
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Pfosten, die allein oder in Verbindung mit zwischen ihnen angeordneten Baugrubenwäuden zum Zurückhalten des Erdreiches dienen, Brunnenrohre zur Entwässerung der Baugrube oder zur Senkung des Grundwasserspiegels eingesetzt werden.'
Fig. 1 und 2 zeigen den Schnitt und den Grundriss der Baugrube einer Untergrundbahn, deren Aussteifung gemäss dem neuen Verfahren erfolgt ist.
Die in Fig. 3 bis n näher dargestellten, für den vorliegenden Zweck besonders geeigneten Pfosten bestehen je aus zwei U-Eisen c. dz die durch ein Flacheisengitterwerk e miteinander verbunden sind und deren Zwischenraum derart mit Betonmasse ausgefüllt ist. dass innen die Bohrung c verbleibt und dass an den Seitenflächen die Zwischenräume zwischen den Flacheisen c bündig ausgefüllt sind.
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so werden die Schellen entfernt und das Bohrrohr allein weitergesenkt, bis die für den Brunnen nötige Tiefe erreicht ist.
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versteifen.
Sofern es, wie bei dem Ausführungsbeispiel a angenommen, nötig ist, die die Brunnenrohre miteinander verbindende Saugleitung k tiefer als die Köpfe der Pfosten anzuordnen, werden zweckmässig in dem die U-Eisen verbindenden Gitterwerk Zwischenräume o vorgesehen. An diesen Stellen wird nach dem Ausschachten die Betonwand des Pfostens zertrümmert, so dass durch die entstehende Öffnung das in der Baugrube angebrachte
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verbunden werden kann.
Die beschriebene Anordnung wird mit besonderem Vorteil dann verwendet, wenn mit Rücksicht auf benachbarte Gebäude ein Einrammen von Pfosten gefährlich ist und die Pfosten daher nach Art von Brunnen eingesenkt werden. Alsdann wird beim Einbringen eines Pfostens bereits ein wesentlicher Teil der Bohrarbeit für den Brunnen geleistet und
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Procedure for lowering groundwater in construction pits.
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Posts which serve alone or in connection with building pit walls arranged between them to hold back the soil, well pipes are used to drain the building pit or to lower the groundwater level. '
1 and 2 show the section and the floor plan of the excavation of an underground railway, the stiffening of which was carried out according to the new method.
The posts shown in more detail in Fig. 3 to n, which are particularly suitable for the present purpose, each consist of two U-irons c. dz which are connected to each other by a flat iron lattice and the space between them is filled with concrete mass. that inside the hole c remains and that the spaces between the flat iron c are filled flush on the side surfaces.
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so the clamps are removed and the drill pipe is lowered further until the depth required for the well is reached.
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stiffen.
If, as assumed in embodiment a, it is necessary to arrange the suction line k connecting the well pipes to one another lower than the heads of the posts, spaces o are expediently provided in the latticework connecting the U-bars. After excavation, the concrete wall of the post is smashed at these points, so that the opening that has been made in the excavation pit
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can be connected.
The arrangement described is used with particular advantage when, with consideration for neighboring buildings, it is dangerous to ram posts and the posts are therefore sunk in the manner of a well. Then a substantial part of the drilling work for the well is already done when a post is inserted
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Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE46833X | 1908-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT46833B true AT46833B (en) | 1911-03-10 |
Family
ID=5625420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT46833D AT46833B (en) | 1908-09-08 | 1909-09-01 | Procedure for lowering groundwater in construction pits. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT46833B (en) |
-
1909
- 1909-09-01 AT AT46833D patent/AT46833B/en active
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