The hydraulic pressure cell consists of a flatjack (fluid filled pressure pad) connected to a hydraulic or pneumatic diaphragm transducer which in turn is connected by flexible tubing to a read-out unit. Pressure transferred from the surrounding soil, rock or concrete to the flatjack is measured by balancing the fluid pressure in the cell by a pressure applied to the reverse side of the transducer diaphragm. The cell is intended as a means of measuring total pressure changes in soil, earth, rockfill, concrete, or at the interface between any of these materials. It may also be used to measure pressure changes in rock when installed in a machined slot. Typical applications are in earth or fill embankments, dams and dam foundations, retaining walls, and behind or within tunnel linings. (TRRL)

  • Availability:
  • Corporate Authors:

    Pergamon Press, Incorporated

    Headington Hill Hall
    Oxford OX30BW,    
  • Publication Date: 1980-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00334081
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Sep 16 1981 12:00AM