DE607868C - Method for sealing construction pits - Google Patents

Method for sealing construction pits

Info

Publication number
DE607868C
DE607868C DES94648D DES0094648D DE607868C DE 607868 C DE607868 C DE 607868C DE S94648 D DES94648 D DE S94648D DE S0094648 D DES0094648 D DE S0094648D DE 607868 C DE607868 C DE 607868C
Authority
DE
Germany
Prior art keywords
layer
construction pits
sealing
sealing construction
sheet pile
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
DES94648D
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.)
Siemens Bauunion GmbH
Original Assignee
Siemens Bauunion GmbH
Publication date
Priority to DES94648D priority Critical patent/DE607868C/en
Application granted granted Critical
Publication of DE607868C publication Critical patent/DE607868C/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
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
    • E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Description

Verfahren zum Abdichten von Baugruben Die Erfindung betrifft ein Verfahren zum Abdichten von durch Spundwände o. dgl. umschlossenen Baugruben durch wasserdichtes Verfestigen des Bodens der Baugrubensohle.Method for sealing construction pits The invention relates to a method for sealing construction pits enclosed by sheet piling or the like by watertight Consolidation of the soil of the excavation base.

Es ist bereits bekanntgeworden, Sohlen von Baugruben zum Schutz gegen Wassereinbrüche zu betonieren. Das Ausbetonieren der Baugrubensohlen ist jedoch kostspielig, da man sehr viel Beton zum Abdichten benötigt, wenn der Druck des Grundwassers groß ist.It has already become known to protect the soles of construction pits against Concrete ingress of water. However, concreting of the excavation pit is costly, as you need a lot of concrete for sealing when the pressure of the groundwater is great.

Gemäß der Erfindung wird beim Abdichten von Baugruben der erwähnten Art? folgendermaßen verfahren: Die Spundwände werden so tief hinabgeführt und die verfestigte Dichtungsschicht wird so tief unterhalb der Baugrubensohle hergestellt, daß die über der Dichtungsschicht liegenden, unverfestigt bleibenden Erdmassen, durch welche die das Verfestigungsmittel zuführenden Rohre hindurchgeführt sind, ein ausreichendes Gegengewicht gegen den Auftrieb des Grundwassers bilden.According to the invention, when sealing construction pits, the mentioned Kind? proceed as follows: The sheet pile walls are led down that deep and the The solidified sealing layer is created deep below the base of the construction pit, that the earth masses lying above the sealing layer and remaining unconsolidated, through which the pipes feeding the solidifying agent are passed, form a sufficient counterweight against the buoyancy of the groundwater.

Es ist zwar bereits bekanntgeworden, über der zu verfestigenden Schicht eine Erdschicht geringer Stärke stehenzulassen, welche verhindern soll, daß das eingespritzte Verfestigungsmittel nach oben entweicht. -Bei dem Verfahren nach der Erfindung wird dagegen die Stärke der stehenbleibenden Erdschicht so bemessen, daß diese Erdschicht noch einem anderen Zweck,dient, nämlich, daB durch ihr Gewicht dem auf die Sohle der verfestigten Schicht einwirkenden Auftrieb das Gleichgewicht gehalten wird.It has already become known about the layer to be consolidated to leave a layer of earth of little thickness to prevent that injected solidifying agent escapes upwards. -In the procedure according to the Invention, however, the thickness of the remaining layer of earth is so dimensioned that this layer of earth serves another purpose, namely, that by its weight the buoyancy acting on the bottom of the solidified layer is in equilibrium is held.

In der Zeichnung wird das neue Verfahren an Hand eines Ausführungsbeispieles erläutert.In the drawing, the new method is illustrated using an exemplary embodiment explained.

Die durch Spundwände i begrenzte Baugrube 2 hat die Sohle 3. Mittels Einspritzrohr 4 werden in den Baugruben Bodenversteinerungsmittel eingeführt, so daß zwischen den unteren Enden der Spundwände i eine versteinerte Schicht 5 entsteht. Über der wasserdichten Versteinerungsschicht 5 läßt man den Boden 6 stehen, und zwar in solcher Höhe, daß er ein ausreichendes Gegengewicht gegen den Grundwasserauftrieb 7 bildet.The building pit 2, bounded by sheet pile walls i, has the bottom 3. Medium Injection pipe 4 are introduced into the construction pits of soil petroleum, see above that between the lower ends of the sheet pile walls i a petrified layer 5 is formed. The ground 6 is allowed to stand over the watertight petrification layer 5, and although at such a height that it provides a sufficient counterweight to the groundwater buoyancy 7 forms.

Der stehenbleibende Boden 6 vermag die Grubensickerwasser 8 aufzunehmen, die mittels Pumpen 9 zu Tage gefördert werden können, so daß die Baugrubensohle 3 stets trocken bleibt.The remaining soil 6 is able to absorb the pit seepage water 8, which can be promoted to days by means of pumps 9, so that the bottom of the excavation 3 always stays dry.

Die Mächtigkeit der als Gegengewicht gegen den Grundwasserdruck stehenbleibenden Auflastschicht wird mit wachsender Größe des Grundwasserdruckes stärker ausgebildet; sie nimmt gegebenenfalls mit der Festigkeit und Dicke der Verfestigungsschicht ab.The thickness of those standing as a counterweight to the groundwater pressure The ballast layer becomes stronger as the groundwater pressure increases; it may decrease with the strength and thickness of the strengthening layer.

Claims (1)

PATENTANSPRUCH: Verfahren zum Abdichten von durch Spundwände o. dgl. umschlossenen Baugruben durch wasserdichtes Verfestigen des Bodens der Baugrubensohle, dadurch gekennzeichnet, daß die Spundwände (i) so tief hinabgeführt werden und die verfestigte Dichtungsschicht (5) so tief unterhalb der Baugrubensohle (3) hergestellt wird, daß die über der Dichtungsschicht (5) liegenden, unverfestigt bleibenden Erdmassen (6), durch welche die das Verfestigungsmittel zuführenden Rohre (4) hindurchgeführt sind, ein ausreichendes Gegengewicht gegen den Auftrieb (7) des Grundwassers bilden. PATENT CLAIM: Method for sealing construction pits enclosed by sheet pile walls or the like by waterproofing the soil of the excavation base, characterized in that the sheet pile walls (i) are led down so deep and the solidified sealing layer (5) is so deep below the excavation base (3) it is produced that the earth masses (6) lying above the sealing layer (5) and remaining unconsolidated, through which the pipes (4) supplying the consolidating agent are passed, form a sufficient counterweight against the buoyancy (7) of the groundwater.
DES94648D Method for sealing construction pits Expired DE607868C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES94648D DE607868C (en) Method for sealing construction pits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES94648D DE607868C (en) Method for sealing construction pits

Publications (1)

Publication Number Publication Date
DE607868C true DE607868C (en) 1935-01-10

Family

ID=7518831

Family Applications (1)

Application Number Title Priority Date Filing Date
DES94648D Expired DE607868C (en) Method for sealing construction pits

Country Status (1)

Country Link
DE (1) DE607868C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867677C (en) * 1943-08-11 1953-02-19 Hoerder Huettenunion Ag Process for the establishment of foundation bodies, cage dams or the like in less load-bearing soil layers
EP0157398A2 (en) * 1984-04-02 1985-10-09 Jan Erik Johansson Device for relieving floors on ground in buildings
NL8403709A (en) * 1984-12-06 1986-07-01 Verstraeten Funderingstech Bv METHOD AND APPARATUS FOR FORMING A SEALING WALL IN THE SOIL
FR2589898A2 (en) * 1985-11-07 1987-05-15 Crambes Michel Application of the method for the compaction of ground and the construction of buried structures embedded in compacted or decompacted ground, for creating plane or complex structures

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867677C (en) * 1943-08-11 1953-02-19 Hoerder Huettenunion Ag Process for the establishment of foundation bodies, cage dams or the like in less load-bearing soil layers
EP0157398A2 (en) * 1984-04-02 1985-10-09 Jan Erik Johansson Device for relieving floors on ground in buildings
EP0157398A3 (en) * 1984-04-02 1986-10-22 Jan Erik Johansson Device for relieving floors on ground in buildings
NL8403709A (en) * 1984-12-06 1986-07-01 Verstraeten Funderingstech Bv METHOD AND APPARATUS FOR FORMING A SEALING WALL IN THE SOIL
FR2589898A2 (en) * 1985-11-07 1987-05-15 Crambes Michel Application of the method for the compaction of ground and the construction of buried structures embedded in compacted or decompacted ground, for creating plane or complex structures

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