DE6905206U - DOUBLE TUBE SIOMETER. - Google Patents

DOUBLE TUBE SIOMETER.

Info

Publication number
DE6905206U
DE6905206U DE6905206U DE6905206U DE6905206U DE 6905206 U DE6905206 U DE 6905206U DE 6905206 U DE6905206 U DE 6905206U DE 6905206 U DE6905206 U DE 6905206U DE 6905206 U DE6905206 U DE 6905206U
Authority
DE
Germany
Prior art keywords
tube
tensiometer
manometer
mercury
pvc
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
DE6905206U
Other languages
German (de)
Inventor
Gerhard Voelkner
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE6905206U priority Critical patent/DE6905206U/en
Publication of DE6905206U publication Critical patent/DE6905206U/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00Investigation of foundation soil in situ
    • E02D1/02Investigation of foundation soil in situ before construction work

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil 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)
  • Sampling And Sample Adjustment (AREA)

Claims (2)

Beschreibung des Doppelrohrtensiometers. Tensiometer dienen zur Messung der Saugkraft des Bodens. Es besteht aus einem mit wassergefüllten Plexiglasrohr, welches oben verschlossen ist und unten eine festeingebaute Keramikkerze hat, deren größte Porenweite 2 my beträgt. Stellt man das Tensiometer mit festem Schluß in den Boden, so entzieht dieser durch die Kerze Wasser aus dem Tensiometerrohr. Hier entsteht ein Unterdruck, der mil einem Quecksilbermanometer gemessen wird. Bei den bisherigen Konstruktionen war dieses Quecksilbermanometer mit ■ nverstellbarer Skala fest in das Tensiometerrohr eingebaut una mit einem Stopfen verschlossen. Bei meiner Neukonstruktion ist das Quecksilbermanometer ein getrennter Bauteil. Es wird in das Tensiometerrohr eingeführt und mit einem PVC Schraubfitting mit Gummiringdichtung vakuumdicht verschloss n. Das Quecksilbermanometer besteht aus einem Plexiglasrohr, an dem eine Kunststoffkanüle so angeklebt ist, daß es ein U-Manometer ergibt. Der eine Schenkel befindet sich in dem Rohr und wird zum anderen Schenkel nach außen geführt. Das Plexiglasrohr wird unten mit einem Kunstharz luftdicht vergossen, oben in dem Oberteil des PVC Fittings fest verklebt. Der auf dem Plexiglasrohr außen angebrachte Schenkel des Quecksilbermanometers liegt nach Einführung in das Tensiometerrohr im Unterdruck. Dar innere Schenkel im Manometerrohr hat nach oben durch den PVC Fitting Zugang zur Atmosphäre. Im Inneren des Manometerrohres ist eine hb'henverstellbare Skala angebracht, die nach Fixierung des Nullpunktes mit einer Feststellschraube gesichert wird. Der Fortschritt gegenüber den bisher gekannten Konstruktionen besteht in der Vereinfachung der Herstellung, größere Vakuumdichtheit und vereinfachte Handhabung. Für den Transport können Tensiomefcerrohr und Quecksilbermanometer getrennt werden. Dadurch sind Tensiometer in jeder Länge transportierbar. Schutzanspruch:Description of the double tube tensiometer. Tensiometers are used to measure the suction force of the floor. It consists of a water-filled Plexiglas tube, which is closed at the top and has a permanently installed ceramic candle at the bottom, the largest pore size of which is 2 my. If you place the tensiometer firmly in the ground, it will draw water from the tensiometer tube through the candle. This creates a negative pressure that is measured with a mercury manometer. In the previous designs, this mercury manometer with an adjustable scale was built into the tensiometer tube and closed with a stopper. In my new design, the mercury manometer is a separate component. It is inserted into the tensiometer tube and sealed vacuum-tight with a PVC screw fitting with a rubber ring seal. The mercury manometer consists of a plexiglass tube to which a plastic cannula is glued in such a way that it becomes a U-manometer. One leg is located in the pipe and is led to the outside of the other leg. The Plexiglas tube is sealed airtight with a synthetic resin at the bottom and firmly glued to the upper part of the PVC fitting. The leg of the mercury manometer attached to the outside of the Plexiglas tube is under negative pressure after it has been inserted into the tensiometer tube. The inner leg in the manometer tube has upward access to the atmosphere through the PVC fitting. A height-adjustable scale is attached inside the manometer tube, which is secured with a locking screw after the zero point has been fixed. The progress compared to the previously known constructions consists in the simplification of the production, greater vacuum tightness and simplified handling. Tensiometer tube and mercury manometer can be separated for transport. This means that tensiometers can be transported in any length. Protection claim: 1.) Tensiometer, dadurch gekennzeichnet, daß ein separates Quecksilbermanometer in das Tensiometerrohr eingeführt und mit einem PVC Schraubfitting vakuumdicht verschlossen wird.1.) Tensiometer, characterized in that a separate mercury manometer introduced into the tensiometer tube and sealed vacuum-tight with a PVC screw fitting. 2.) Einschubquecksilberraanometer für Tensiometerrohre nach Anspruch 1, dadurch gekennzeichnet, daß eine Kanüle an einem Plexiglasrohr angebracht ist, sodaß der eine Schenkel im Inneren, der andere an der Außenseite des Rohres verläuft. Das Rohr ist unten vakuumdicht verschlossen, oben in einen PVC Schraubfitting eingeklebt. Durch den PVC Schraubfitting hat das Rohrinnere Zugang zur Atmosphäre. In dem Manometerrohr befindet sich eine bewegliche, feststellbare Skala.2.) Insertable mercury nanometer for tensiometer tubes according to claim 1, characterized in that a cannula is attached to a plexiglass tube so that one leg is inside, the other runs on the outside of the pipe. The tube is closed vacuum-tight at the bottom and in a PVC screw fitting at the top glued in. The inside of the pipe has access to the atmosphere through the PVC screw fitting. In the manometer tube is located a movable, lockable scale.
DE6905206U 1969-02-10 1969-02-10 DOUBLE TUBE SIOMETER. Expired DE6905206U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE6905206U DE6905206U (en) 1969-02-10 1969-02-10 DOUBLE TUBE SIOMETER.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE6905206U DE6905206U (en) 1969-02-10 1969-02-10 DOUBLE TUBE SIOMETER.

Publications (1)

Publication Number Publication Date
DE6905206U true DE6905206U (en) 1969-05-29

Family

ID=34085927

Family Applications (1)

Application Number Title Priority Date Filing Date
DE6905206U Expired DE6905206U (en) 1969-02-10 1969-02-10 DOUBLE TUBE SIOMETER.

Country Status (1)

Country Link
DE (1) DE6905206U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911151A1 (en) * 1989-04-06 1990-10-11 Joachim Schmidt Measuring device for determining soil properties

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911151A1 (en) * 1989-04-06 1990-10-11 Joachim Schmidt Measuring device for determining soil properties

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