Hoek Cells

Hoek Cells

Description

The Hoek triaxial cells are offered in five models of different size; each one consists of the following:
  • A cell body, complete with two quick release self sealing couplings, for the introduction of the hydraulic oil and cell pressure, and for air outlet  and saturation of the chamber respectively.
  • Lower cylinder with enlarged base and collar support that assures the vertical position of the cell even when not subjected to load.
  • Upper lower loading cap with spherical coupling.
  • One female spherical seating connected to the loading upper cap for the correct transmission of the axial load from the loading frame of the compression machine to the specimen.
  • A rubber sealing sleeve to separate the specimen from the cell fluid. Although each sleeve can be used for several tests, an order of five spare sleeves is recommended. See accessories.

Measurements of axial and radial strain are carried out with the use of electric strain gauges, both in vertical and horizontal direction, directly glued on the lateral surface of the specimen. The wiring connections are passed within the rubber sleeve  trough the cell body and loading cap. Each strain gauge must be connected to a proper device (see 82-P0398) to complete and balance the Wheatstone bridge.

The strain gauge measurements can be performed by automatic or semi automatic testing systems (see Related Products below). 

It is also recommended the use of a Specimen extruder to extrude the rock sample from its jacket thus avoiding to empty the confining fluid. (see Related Products)
  • Various Hoek cells dimensions are available: AX, 1.5", BX, NX and HQ types
  • Designed for high pressure capability
  • All models are fitted with two quick-release self-sealing coupling
  • One rubber sleeve is already included with the Hoek cell
  • Collar support that assures the vertical position of the cell even when not subjected to load inclued.

Label/Normering

  ASTM D5407‰ASTM D7012

Technische specificaties

Technical Specifications

CodeD.C.D.M.A.
Reference		Specimen size
d x h [mm]		Total height
[mm]		Weight
[kg]
32-D0553/HCAX30.10x602132.50
32-D0554/HC1.5 in.38.10x752644
32-D0555/HCBX42.04x852636.50
32-D0556/HCNX54.74x10830413
32-D0557/HCHQ63.50x12731015

 

Order nummers

32-D0553/HC:

Hoek triaxial cell AX (30.2 mm dia. sample), one rubber sealing sleeve included.

32-D0554/HC:

Hoek triaxial cell 1.5in (38.1 mm dia. sample), one rubber sealing sleeve included.

Accessoires & toebehoren

 

32-D0553/1: Spare sealing sleeves 32-D0554/1: Spare sealing sleeves 32-D0555/1: Spare sealing sleeves 32-D0556/A: Pair of load spreader 32-D0556/B: Distance pad32-D0555/HC:

Hoek triaxial cell BX (42.04 mm dia. sample), one rubber sealing sleeve included.

32-D0556/HC:

Hoek triaxial cell NX (54.74 mm dia. sample), one rubber sealing sleeve included.

32-D0557/HC:

Hoek triaxial cell HQ (63.5mm dia. sample), one rubber sealing sleeve included.

: 32-D0556/1: Spare sealing sleeves 32-D0557/1: Spare sealing sleeves for Hoek cell size HQ code 45-D0557

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