WO2010058045A2 - Perfectionnements apportés à des oedomètres pour l'application de charges dans des cellules oedométriques - Google Patents

Perfectionnements apportés à des oedomètres pour l'application de charges dans des cellules oedométriques Download PDF

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Publication number
WO2010058045A2
WO2010058045A2 PCT/ES2009/000536 ES2009000536W WO2010058045A2 WO 2010058045 A2 WO2010058045 A2 WO 2010058045A2 ES 2009000536 W ES2009000536 W ES 2009000536W WO 2010058045 A2 WO2010058045 A2 WO 2010058045A2
Authority
WO
WIPO (PCT)
Prior art keywords
cells
loads
frame
application
edometric
Prior art date
Application number
PCT/ES2009/000536
Other languages
English (en)
Spanish (es)
Other versions
WO2010058045A3 (fr
Inventor
José Luis JUSTO ALPAÑÉS
Percy Durand Neyra
Manuel VÁZQUEZ BOZA
Original Assignee
Universidad De Sevilla
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 Universidad De Sevilla filed Critical Universidad De Sevilla
Publication of WO2010058045A2 publication Critical patent/WO2010058045A2/fr
Publication of WO2010058045A3 publication Critical patent/WO2010058045A3/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12—Pressure testing
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0001—Type of application of the stress
    • G01N2203/0003—Steady
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0019—Compressive
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0058—Kind of property studied
    • G01N2203/0076—Hardness, compressibility or resistance to crushing
    • G01N2203/0085—Compressibility
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0262—Shape of the specimen
    • G01N2203/0266—Cylindrical specimens
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0284—Bulk material, e.g. powders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials

Definitions

  • the present invention refers to improvements in edometers for application of loads in oedometric cells.
  • the Oedometer has in principle the purpose of measuring the degree of one-dimensional compression of a soil, based on the improvements of the invention in means of adaptation of the Oedometer to be able to apply loads in oedometric cells up to 210 mm in diameter with or without control of the suction.
  • the application of the invention is part of the scientific series of field engineering and mechanical engineering.
  • the activity and technology sectors in which the invention would be applicable would be the fields of soil mechanics, dams, road embankments, foundations and also scientific devices.
  • the conventional edometer as usual element in a soil mechanics laboratory, is designed for oedometric cells up to 150 mm in diameter, with maximum heights of 90 mm.
  • the invention proposes improvements in edometers for application of loads in oedometric cells up to 210 mm in diameter with or without suction control.
  • the improvements of the invention comprise two well-differentiated parts with characteristic structures with respect to the background in their field of application.
  • a first part consists of a new load application frame, which is composed of two lateral rods and a crossbar in which a regulating screw is placed that allows adjustment between the load application system and the oedometric cell. This frame is coupled to the body of an oedometer, thus allowing a perfect coupling that is made by screwing procedure or other suitable system.
  • a second part consisting of a reaction frame, consisting of a lintel with adjustable height depending on the size of the load transducer used and two supports screwed into their bases through the corresponding anchor plates and screws, being feasible for installation in any type of surface.
  • the load transducer is thus anchored to the lintel of the reaction frame through a screw that performs the function of prisoner.
  • Both the load application frame and the reaction frame have been conceived with bolted joints that allow easy assembly and disassembly, facilitating the change of the conventional edometer configuration for both cells of usual sizes and for large diameter cells.
  • Figure 1. Shows an exploded perspective view of the improvements in edometers for application of loads in oedometric cells, object of the invention.
  • Figure 2. Shows a perspective view of an oedometer with the improvements of the invention.
  • the improvements in edometers comprise in principle a first set of outer reaction frame (15) of larger dimension and a second set of inner frame (16) loading application that is smaller than the first.
  • the reaction frame (15) in turn comprises a lintel (3) coupled in two lateral columns (4) constituting the support of the frame (15), so that such lateral columns (4) have upper threaded sections (18) which are complemented with through holes (19) of the lintel (3) to allow the height-adjustable coupling thereof, each position being fixed with the help of a couple of nuts (5) coupled in the aforementioned threaded sections (18) with interposition of some washers (5 1 ).
  • a load transducer (7) can be housed that is fixed to it through a captive screw (8), which allows the digital registration of the variable force.
  • All this first outer frame assembly (15) is fixed in its final position through base plates (17) arranged at the lower ends of the side columns (4), base plates (17) that are anchored to any surface by screws (6) and their corresponding plugs not shown in the figures or other suitable fixing means.
  • the second inner frame assembly (16) comprises two lateral rods (11) with lower threaded sections (21 ') and other upper threaded sections (21) where a crossbar (10) is affected by complementary through holes (20) with such upper threaded sections (21) of the lateral rods (11) to facilitate their coupling with respect to the upper crossbar (10) with the help of nuts (13) and washers (13 ').
  • fixing parts (12) are coupled, which have through holes (26) where their threaded lower sections (21 1 ) are adjusted. ), ensuring the union by means of nuts (27) and washers (27 ').
  • This described interior frame structure (16) is connected to a conventional oedometric bench (1) (figure 1) through the aforementioned fixing pieces (12) that have recesses (23) where fixed stops (24) are fixed of the sides of said bed (1), ensuring the connection by means of a screwed joint in which screws (14), nuts (22) and washers (22 ') participate.
  • the upper cross member (10) of the load application frame (16) incorporates an adjustment screw (9) with locknut (25) that allows the adjustment of said load application frame (16), an oedometric cell (2) and the load transducer (7), whose lower end is in contact with the head of said adjustment screw (9).

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement Of Force In General (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

Les perfectionnements consistent en des moyens d'adaptation de l'oedomètre en vue de rendre possible l'application de charges dans des cellules oedométriques pouvant atteindre 210 mm de diamètre avec ou sans commande d'aspiration. A cet effet, les perfectionnements comprennent essentiellement un premier cadre extérieur (15) de réaction de dimension plus importante qui comporte un transducteur de charge (7), ainsi qu'un second cadre intérieur (16) d'application de charge qui se fixe sur un bâti oedométrique (1) assurant le support d'une cellule oedométrique (2) sur laquelle vient appuyer un élément réglable en hauteur (9) ancré dans le cadre intérieur (16), élément avec lequel vient à son tour entrer en contact l'extrémité inférieure du transducteur de charge (7) fixé au cadre extérieur (15).
PCT/ES2009/000536 2008-11-18 2009-11-17 Perfectionnements apportés à des oedomètres pour l'application de charges dans des cellules oedométriques WO2010058045A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ESP200803283 2008-11-18
ES200803283A ES2349967B1 (es) 2008-11-18 2008-11-18 Perfeccionamientos en edometros para aplicacion de cargas en celulas edometricas.

Publications (2)

Publication Number Publication Date
WO2010058045A2 true WO2010058045A2 (fr) 2010-05-27
WO2010058045A3 WO2010058045A3 (fr) 2010-07-15

Family

ID=42198580

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2009/000536 WO2010058045A2 (fr) 2008-11-18 2009-11-17 Perfectionnements apportés à des oedomètres pour l'application de charges dans des cellules oedométriques

Country Status (2)

Country Link
ES (1) ES2349967B1 (fr)
WO (1) WO2010058045A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013134538A1 (fr) * 2012-03-07 2013-09-12 Saudi Arabian Oil Company Dispositif mobile et méthode de test d'agent de soutènement sur le terrain
CN104458430A (zh) * 2014-11-05 2015-03-25 大连理工大学 一种多功能非饱和土固结仪及测试方法
CN108680723A (zh) * 2018-04-03 2018-10-19 温州大学 固结仪
CN110108852A (zh) * 2019-04-26 2019-08-09 武汉科技大学 一种加载可控和尺寸可调的相似模拟试验装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690204A (en) * 1951-06-05 1953-04-15 George William Stockton Apparatus for use in determining the characteristics of coated metal sheets
US2760370A (en) * 1954-05-17 1956-08-28 Us Rubber Co Motor-driven load-deflection tester
US2811038A (en) * 1954-07-19 1957-10-29 Reuben H Karol Apparatus for the consolidation of materials
FR1586414A (fr) * 1968-08-01 1970-02-20
GB1224314A (en) * 1967-03-09 1971-03-10 Wykeham Farrance Engineering L Improvements relating to oedometers
GB1501083A (en) * 1973-12-22 1978-02-15 Parry R Testing of soils and like materials
US6332364B1 (en) * 1999-04-23 2001-12-25 Bio Syntech Canada Inc. Universal mechanical testing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB690204A (en) * 1951-06-05 1953-04-15 George William Stockton Apparatus for use in determining the characteristics of coated metal sheets
US2760370A (en) * 1954-05-17 1956-08-28 Us Rubber Co Motor-driven load-deflection tester
US2811038A (en) * 1954-07-19 1957-10-29 Reuben H Karol Apparatus for the consolidation of materials
GB1224314A (en) * 1967-03-09 1971-03-10 Wykeham Farrance Engineering L Improvements relating to oedometers
FR1586414A (fr) * 1968-08-01 1970-02-20
GB1501083A (en) * 1973-12-22 1978-02-15 Parry R Testing of soils and like materials
US6332364B1 (en) * 1999-04-23 2001-12-25 Bio Syntech Canada Inc. Universal mechanical testing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013134538A1 (fr) * 2012-03-07 2013-09-12 Saudi Arabian Oil Company Dispositif mobile et méthode de test d'agent de soutènement sur le terrain
US9557254B2 (en) 2012-03-07 2017-01-31 Saudi Arabian Oil Company Portable device and method for field testing proppant
CN104458430A (zh) * 2014-11-05 2015-03-25 大连理工大学 一种多功能非饱和土固结仪及测试方法
CN108680723A (zh) * 2018-04-03 2018-10-19 温州大学 固结仪
CN110108852A (zh) * 2019-04-26 2019-08-09 武汉科技大学 一种加载可控和尺寸可调的相似模拟试验装置

Also Published As

Publication number Publication date
ES2349967B1 (es) 2011-11-11
WO2010058045A3 (fr) 2010-07-15
ES2349967A1 (es) 2011-01-13

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