MEASUREMENT OF SOIL SUCTION USING THE MCS 6000 SENSOR

A study was undertaken at the University of Saskatchewan to examine the possibility of using the MCS 6000 sensor as a suitable device for measuring soil suction. The study included an evaluation of the accuracy and response of the sensor to changes in ambient temperature. The hysteretic effects of the sensor are also investigated. The MCS 6000 sensor was found to be relatively sensitive and accurate in measuring suction below 100 kpa, with a variation of plus or minus 6 kpa when compared to the tensionmeter readings. The sensor commenced losing its sensitivity at higher suction values. When the suction was greater than 2 atmosphere, the results showed considerable scatter. It was observed that changes in the ambient temperature would somewhat affect the suction readings. One of the major problems associated with the use of the MCS sensor is the difficulty to achieve an adequate contact between the porous block and the soil. The cost of the sensor and the measuring equipment may also be prohibitive in many cases. Nevertheless, the MCS 6000 sensor should be considered as a means to measure soil suction in some geotechnical engineering applications. (Author/TRRL)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 50-54
  • Serial:
    • Issue Number: 84/3

Subject/Index Terms

Filing Info

  • Accession Number: 00389690
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0-85825-219-8
  • Files: ITRD, TRIS, ATRI
  • Created Date: Mar 29 1985 12:00AM