CA2792313A1 - Method and device for measuring mechanical characteristics of the ground - Google Patents

Method and device for measuring mechanical characteristics of the ground Download PDF

Info

Publication number
CA2792313A1
CA2792313A1 CA2792313A CA2792313A CA2792313A1 CA 2792313 A1 CA2792313 A1 CA 2792313A1 CA 2792313 A CA2792313 A CA 2792313A CA 2792313 A CA2792313 A CA 2792313A CA 2792313 A1 CA2792313 A1 CA 2792313A1
Authority
CA
Canada
Prior art keywords
cable
hypodermic needle
cell
ground
membrane
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.)
Granted
Application number
CA2792313A
Other languages
French (fr)
Other versions
CA2792313C (en
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
Application filed by Individual filed Critical Individual
Publication of CA2792313A1 publication Critical patent/CA2792313A1/en
Application granted granted Critical
Publication of CA2792313C publication Critical patent/CA2792313C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Geophysics (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (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)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

Procédé et dispositif consiste à introduire une cellule à membrane (7) dans un forage dans le sol. Un gaz sous pression alimente la cellule, et l'augmentation du volume de la cellule (7) est alors mesurée en fonction de la pression exercée. Un tube vertical (10) juste au- dessus de la cellule à membrane (7) est équipé par un revolver incliné (8), sa balle est une aiguille hypodermique menu d'un capteur (5), à tirer dans le sol jusqu'au niveau de déformations maximale (6) de la cellule à membrane ainsi que à son voisinage, à mesurer la pression interstitiel en fonction de la pression exercée et le volume de la cellule à membrane.Method and device consists in introducing a membrane cell (7) into a borehole in the ground. A pressurized gas feeds the cell, and the increase in the volume of the cell (7) is then measured as a function of the pressure exerted. A vertical tube (10) just above the membrane cell (7) is equipped with an inclined revolver (8), its bullet is a hypodermic needle with a sensor (5), to be shot in the ground up to at the level of maximum deformations (6) of the membrane cell as well as in its vicinity, measuring the interstitial pressure as a function of the pressure exerted and the volume of the membrane cell.

Claims (4)

1)Procédé de mesure des caractéristiques mécaniques des sols du type consistant à enfoncer dans le sol ou par forage une cellule à membrane (7) dans laquelle, on introduit sous pression un liquide ou un gaz, à mesurer l'augmentation de volume de la cellule à membrane en fonction de la pression exercée caractérisé en ce qu'il consiste à
tirer dans le sol, à partir d'un revolver (8), selon une direction inclinée à
partir de la partie juste supérieure à la cellule à membrane (7), une aiguille hypodermique (5) menu d'un capteur jusqu'au niveau (6) central des déformations maximale de la cellule à
membrane (7) et à mesurer le changement de la valeur de la pression interstitielle au niveau central (6) ainsi qu'au voisinage de la cellule à membrane (7) en fonction de la pression dans la cellule à membrane (7). 1) Method for measuring the mechanical characteristics of soils of the type consisting for driving into the ground or drilling a membrane cell (7) in which, we introduced under pressure a liquid or a gas, to measure the increase of volume of the membrane cell according to the pressure exerted characterized in that consists of pulling in the ground, from a revolver (8), in a direction inclined to from the just superior to the membrane cell (7), a hypodermic needle (5) menu from a sensor to the central level (6) of the maximum deformations of the cell to membrane (7) and to measure the change in the value of the pressure interstitial central level (6) and in the vicinity of the membrane cell (7) in function of the pressure in the membrane cell (7). 2) Dispositif pour mesurer des caractéristiques mécanique des sols pour la mise en oeuvre du procédé selon la revendication 1, du type comprenant un tube vertical (9) comportant une cellule à membrane (7), caractérisé en ce qu'il consiste à
introduire dans le tube (9), un tube vertical (10) de diamètre inférieur, à appuyer sur support (1) et muni d'un guide (3), à assurer le bout d'une aiguille hypodermique (5) face au centre de trou (2) couvert par caoutchouc, le tube vertical (10) comprend un revolver incliné (8) par rapport à l'axe du tube vertical (9), servant d'intermédiaire entre la cellule à
membrane (7) et la surface du sol, et en ce que le tir de l'aiguille hypodermique (5) est effectué par la traction par un câble (14) qui raccorde la détente (12) du revolver (8) à la surface du sol. 2) Device for measuring mechanical characteristics of soils for the setting process according to claim 1, of the type comprising a tube vertical (9) comprising a membrane cell (7), characterized in that it consists of introduce in the tube (9), a vertical tube (10) of smaller diameter, to be pressed support (1) and provided with a guide (3), to ensure the tip of a hypodermic needle (5) facing the center of hole (2) covered by rubber, the vertical tube (10) includes a revolver inclined (8) relative to the axis of the vertical tube (9), serving as an intermediate between cell to membrane (7) and the ground surface, and in that the needle shot hypodermic (5) is pulled by a cable (14) which connects the trigger (12) of the revolver (8) at the ground surface. 3) Dispositif selon la revendication 2 caractérisé en ce que le capteur de l'aiguille hypodermique (5) est raccordé par un câble (16) à un ordinateur (15) destiné à
l'enregistrement des valeurs de mesures, et aussi l'aiguille hypodermique (5) est raccordée par un autre câble (17) destiné à retenir l'aiguille hypodermique (5) dans la position souhaitée, lorsqu'elle est projetée, grâce à un noeud (4) sur le câble (17) à une distance de l'aiguille hypodermique (5) égale à la longueur du chemin de sa position initiale jusqu'au niveau (6) de mesure. Le câble (17) sert également à retirer l'aiguille hypodermique (5) vers sa position initiale dans le revolver (8) par le retrait mécanique ou manuel par le câble (17). 3) Device according to claim 2 characterized in that the sensor of the hypodermic needle (5) is connected by a cable (16) to a computer (15) intended to the recording of measurement values, and also the hypodermic needle (5) is connected by another cable (17) for retaining the hypodermic needle (5) in the desired position, when projected, by means of a knot (4) on the cable (17) to a distance of the hypodermic needle (5) equal to the length of the path of its position initial up to the level (6) of measurement. The cable (17) is also used to remove needle hypodermic (5) to its initial position in the revolver (8) by the withdrawal mechanical or manual by the cable (17). 4) Dispositif selon l'une quelconque des revendications 2 et 3 caractérisé en ce que le bout de l'aiguille hypodermique (5) est emboîté par une capsule qui se colle et reste dans le sol lors du retrait de l'aiguille hypodermique (5) par le câble (17) pour éviter que l'aiguille hypodermique (5) ne se colle dans le sol. Le retrait du tube (10) jusqu'à la surface du sol est effectué par la traction par le câble (11). 4) Device according to any one of claims 2 and 3 characterized in this that the tip of the hypodermic needle (5) is fitted by a capsule which glue and remains in the soil when the hypodermic needle (5) is removed by the cable (17) for avoid that the hypodermic needle (5) sticks in the ground. The withdrawal of tube (10) to the ground surface is performed by pulling the cable (11).
CA2792313A 2010-04-30 2011-04-29 Method and device for measuring mechanical characteristics of the ground Expired - Fee Related CA2792313C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE2010/0269 2010-04-30
BE2010/0269A BE1019322A3 (en) 2010-04-30 2010-04-30 METHOD AND DEVICE FOR MEASURING THE MECHANICAL CHARACTERISTICS OF SOIL.
PCT/BE2011/000026 WO2011134028A1 (en) 2010-04-30 2011-04-29 Method and device for measuring mechanical characteristics of the ground

Publications (2)

Publication Number Publication Date
CA2792313A1 true CA2792313A1 (en) 2011-11-03
CA2792313C CA2792313C (en) 2014-08-19

Family

ID=43607681

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2792313A Expired - Fee Related CA2792313C (en) 2010-04-30 2011-04-29 Method and device for measuring mechanical characteristics of the ground

Country Status (7)

Country Link
EP (1) EP2563974B1 (en)
CN (1) CN103201434B (en)
BE (1) BE1019322A3 (en)
CA (1) CA2792313C (en)
DE (1) DE112011101504T5 (en)
GB (1) GB201215550D0 (en)
WO (1) WO2011134028A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
FR2696003B1 (en) 1992-09-21 1995-03-03 Iskander Khalil Method and device for measuring mechanical characteristics of the soil.
JP4642070B2 (en) * 2004-03-23 2011-03-02 ベンシック・ジオテック・プロプライエタリー・リミテッド An improved ball penetration tester for soft soil investigations.
DE102004016277A1 (en) * 2004-03-29 2005-10-20 Gbm Wiebe Gleisbaumaschinen Gm Apparatus and method for determining the condition of the superstructure of railways, roads or earth layers
CN101575847B (en) * 2009-06-02 2011-06-15 中铁第四勘察设计院集团有限公司 Effective stress spade

Also Published As

Publication number Publication date
WO2011134028A8 (en) 2012-12-13
CN103201434A (en) 2013-07-10
EP2563974A1 (en) 2013-03-06
BE1019322A3 (en) 2012-06-05
WO2011134028A1 (en) 2011-11-03
DE112011101504T5 (en) 2013-11-28
CN103201434B (en) 2015-08-19
GB201215550D0 (en) 2012-10-17
CA2792313C (en) 2014-08-19
EP2563974B1 (en) 2014-06-11

Similar Documents

Publication Publication Date Title
CN101576422B (en) Optical fiber grating anchor stress sensor
FR2817344A1 (en) Variable energy dynamic penetrometer for determination of soil density, in which deformation of constraint gauges in a Wheatstone Bridge is converted into an electric signal which varies in proportion to shock load
CN209673574U (en) Vertical Hopkinson pressure bar test device
EP2817607A1 (en) Measuring head intended to be fitted to a dynamic penetrometer and method of measurement using such a measuring head
JP2013088277A (en) Soil hardness measuring instrument
CN106872089A (en) High range dynamic pressure measurement device and its measuring method
CA2792313A1 (en) Method and device for measuring mechanical characteristics of the ground
CN209741940U (en) Pile foundation sinking distance measuring device
CN208586612U (en) A kind of steel pile casting leading truck
WO2019016448A1 (en) Static penetrometer and associated measurement method
CN203583454U (en) Probe-free self-propelled static sounding instrument
CN208109584U (en) A kind of whole plant root system drawing instrument
JP2000080635A (en) Cohesive ground foundation penetration test method and its device
EP3835487B1 (en) Self-drilling static penetrometer
CN115235362A (en) Deep high-geostress roadway surrounding rock strain monitoring method based on optical fiber sensing technology
CN206680981U (en) Foundation bearing capacity and side friction measurement apparatus
CN108442897A (en) Clinometer probe fisher
JP5180952B2 (en) Specific gas concentration meter
FR3100326A1 (en) Device for measuring the perimeter of a deformable object, use of the device for plethysmography by inductance or on an inflatable shutter, devices for measuring by pressurizing the subsoil and by compressing a sample of soil or rock
CN220820006U (en) Desert vegetation soil moisture survey device
CN220565200U (en) Soft soil foundation settlement measuring device
CN204385778U (en) The uplift resistance of pile tube mechanical meshing connector detects fixture
EP0705941A1 (en) Membrane apparatus with inclined piezometer
CN106768864A (en) A kind of optical cable crosses pulley combined test apparatus and its test method
CN109540651B (en) Assembled self-balancing in-situ drawing test device suitable for various nonplanar surfaces

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180430