EP0705941B1 - Pressiometer mit zwei Piezometer - Google Patents

Pressiometer mit zwei Piezometer Download PDF

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Publication number
EP0705941B1
EP0705941B1 EP94400638A EP94400638A EP0705941B1 EP 0705941 B1 EP0705941 B1 EP 0705941B1 EP 94400638 A EP94400638 A EP 94400638A EP 94400638 A EP94400638 A EP 94400638A EP 0705941 B1 EP0705941 B1 EP 0705941B1
Authority
EP
European Patent Office
Prior art keywords
piston
tube
pressure
membrane
piezometer
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 - Lifetime
Application number
EP94400638A
Other languages
English (en)
French (fr)
Other versions
EP0705941A1 (de
Inventor
Khalil Fahmy Iskander
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
Priority to FR9211210A priority Critical patent/FR2696003B1/fr
Application filed by Individual filed Critical Individual
Priority to EP94400638A priority patent/EP0705941B1/de
Priority to DE1994624787 priority patent/DE69424787T2/de
Publication of EP0705941A1 publication Critical patent/EP0705941A1/de
Application granted granted Critical
Publication of EP0705941B1 publication Critical patent/EP0705941B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/008—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/022—Investigation of foundation soil in situ before construction work by investigating mechanical properties of the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/027—Investigation of foundation soil in situ before construction work by investigating properties relating to fluids in the soil, e.g. pore-water pressure, permeability
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/006—Measuring wall stresses in the borehole

Definitions

  • This device has the same advantages and the same defects as the one described (2.1) but the rework in this case is the result of repression.
  • the device consists of a single cell probe preceded by a thin-walled corer carrying the membrane cell of measured.
  • the English device additionally includes a pressure sensor interstitial in the middle of the membrane cell, this membrane cell is fitted with springs with gauges deformations.
  • the device object of the invention can be in two categories based on the method of implementing the probe.
  • Type I Piezoinclined diaphragm diaphragm device
  • Type II Membrane apparatus for piezo-inclined drilling
  • the porous stone of the piezometer (5) is fitted by a cylinder (10) which serves to prevent clogging during penetration of the system and to avoid the re-entry of small grains of soil in the piston oil chamber (13) (8).
  • the space (20) allows the establishment of links (14).
  • the pressurized fluid flowing in the pipeline (2) prevents displacement of the cylinder (10) relative to the porous piezometer stone (5).
  • the pressurized fluid flowing in the pipeline (2) prevents displacement of the cylinder (10) relative to the porous piezometer stone (5).
  • the piezometer (5) approaches level (6), it emerges from cylinder (10) which remains in place by the effect of the link (14).
  • the maneuvering tube (12) containing the piezometer (5) continues to run up to level (6).
  • the fluid in the pipe (2) is evacuated through the porous stone of the piezometer (5).
  • the operating tube (12) of the piston (8) fits into the cylinder (10) and drives it in its movement.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Paleontology (AREA)
  • Soil Sciences (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Geophysics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Claims (5)

  1. Verfahren zur Messung der mechanischen Eigenschaften von Böden, darin bestehend, eine Zellmembran (7) senkrecht in den Boden zu treiben oder mittels Bohrung einzuführen, wobei in diese Zellmembran unter Druck eine Flüssigkeit eingeführt wird, um die volumenmäßige Ausdehnung der Zellmembran (7) auf Grundlage des ausgeübten Drucks zu messen; gekennzeichnet durch die Tatsache, dass ab dem genau über der Zellmembran (7) befindlichen Teil ein Druckmesser schräg in den Boden eingeführt wird, bis er sich auf der Ebene (6) des maximalen Verformungsgrads der Zellmembran befindet, um die Druckschwankungen des sich auf besagter Ebene befindlichen Druckmessers (6), auf Grundlage des Drucks in der Zellmembran (7), zu messen, um somit den Porenwasserdruck in der Nähe der Zellmembran (7) messen zu können.
  2. Eine Vorrichtung zur Messung der mechanischen Eigenschaften des Bodens, gemäß der Festlegung in Anspruch 1, wobei die besagte Vorrichtung aus einem senkrechten Rohr als Zwischenteil, versehen mit einer Zellmembran (7), besteht; gekennzeichnet durch die Tatsache, dass besagte Vorrichtung eine Ummantelung aufweist, ausgerüstet mit einem Kolben (8), der in schräger Lage im Verhältnis zum Achse des senkrechten Zwischenrohrs liegt. Am Ende des Drehrohrs des Kolbens (8) ist ein Piezometer (5) mit einem Porenwasser-Druckmesser und eine hydraulische Vorrichtung zur Vermeidung einer Verschlammung des Piezometers (5) angebracht.
  3. Eine Vorrichtung gemäß der Festlegung unter Anspruch 2, dadurch gekennzeichnet, dass besagte Vorrichtung die durch ein Zwischenrohr mit Druck versorgte Zellmembran, sowie zusätzlich drei Rohrleitungen aufweist, wobei die unter Druck stehenden Rohrleitungen (1,3) dazu bestimmt sind, das Drehrohr (12) des Kolbens (8) rückwärts und vorwärts zu bewegen, während die doppelt ausgelegte Rohrleitung (2) dazu dient, über den einen Weg den Porenwasser-Druckmesser mit einem Mess-Computer (15) zu verbinden, und über den anderen Weg Druckflüssigkeit zu liefern, um die Entschlammung des Piezometers (5) zu gewährleisten.
  4. Eine Vorrichtung gemäß Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Rohrleitung (2) in einem festen Rohr (17) eingefügt wird, um sie vor den Auswirkungen des Öldrucks in der Ölkammer (13) des schräg positionierten Kolbens (8) zu schützen.
  5. Eine Vorrichtung gemäß eines jedweden der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass das Piezometer (5) mit einem Schutzzylinder (10) versehen ist, und durch Befestigungen (14) gesichert wird.
EP94400638A 1992-09-21 1994-03-24 Pressiometer mit zwei Piezometer Expired - Lifetime EP0705941B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR9211210A FR2696003B1 (fr) 1992-09-21 1992-09-21 Procédé et dispositif pour mesurer des caractéristiques mécaniques du sol.
EP94400638A EP0705941B1 (de) 1992-09-21 1994-03-24 Pressiometer mit zwei Piezometer
DE1994624787 DE69424787T2 (de) 1994-03-24 1994-03-24 Pressiometer mit zwei Piezometer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9211210A FR2696003B1 (fr) 1992-09-21 1992-09-21 Procédé et dispositif pour mesurer des caractéristiques mécaniques du sol.
EP94400638A EP0705941B1 (de) 1992-09-21 1994-03-24 Pressiometer mit zwei Piezometer

Publications (2)

Publication Number Publication Date
EP0705941A1 EP0705941A1 (de) 1996-04-10
EP0705941B1 true EP0705941B1 (de) 2000-05-31

Family

ID=26137482

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400638A Expired - Lifetime EP0705941B1 (de) 1992-09-21 1994-03-24 Pressiometer mit zwei Piezometer

Country Status (2)

Country Link
EP (1) EP0705941B1 (de)
FR (1) FR2696003B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2375398A (en) * 2001-05-11 2002-11-13 Local Link Internat Ltd Piezometric pressure sensor
WO2003029614A2 (en) * 2001-09-28 2003-04-10 Shell Internationale Research Maatschappij B.V. Tool and method for measuring properties of an earth formation surrounding a borehole
BE1019322A3 (fr) * 2010-04-30 2012-06-05 Iskander Khalil Fahmy Procede et dispositif de mesure des caracteristiques mecaniques du sol.
CN114295810B (zh) * 2021-12-31 2024-01-12 深圳大学 一种室外土体蓄水能力的测量装置及其测量方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2303727A (en) * 1941-06-10 1942-12-01 Leslie A Douglas Means for testing underground strata for the fluid content thereof
NL7301924A (de) * 1973-02-09 1974-08-13
US3858441A (en) * 1973-07-12 1975-01-07 Henri Jules Comeau Soil testing apparatus
US4408481A (en) * 1982-03-12 1983-10-11 The United States Of America As Represented By The Secretary Of The Air Force Pore pressure probe assembly and two-stage emplacement thereof
FR2631654B1 (fr) * 1988-05-19 1990-08-24 Rech Geolog Miniere Procede et appareil de mesure de la pression interstitielle dans un sol sature

Also Published As

Publication number Publication date
EP0705941A1 (de) 1996-04-10
FR2696003B1 (fr) 1995-03-03
FR2696003A1 (fr) 1994-03-25

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