Field measurement of suction, water content and water permeability

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Suction and (volumetric) water content play a key role in the mechanical and hydraulic behavior of unsaturated geomaterials, and their field measurement is therefore a fundamental issue in engineering applications. Techniques for suction measurement in the laboratory and field have widely been reviewed in the literature [BUL 08, DUR 05, MAR 08, RID 96a, RID 98, SCA 02, TAR 08, YOU 02], in addition to techniques for water content measurements based on dielectric methods
[GAR 01, JON 02, NOR 01, O’CO 99, ROB 03, TAR 08]. The reader may refer to these publications for a comprehensive discussion on these techniques. The aim of this chapter is to present the basic principles of field measurement of suction and water content to help new readers systematize the large information available in the literature. A brief overview of the methods to determine the hydraulic conductivity
in the field is also presented at the end of the chapter.
Original languageEnglish
Title of host publicationMechanics of unsaturated geomaterials
EditorsLyesse Laloui
Pages129-154
Publication statusPublished - 7 Sep 2010

Keywords

  • field monitoring
  • partially saturated soil
  • suction
  • water content
  • tensiometer
  • porous block sensors
  • psychrometer
  • filter paper
  • capacitance sensor
  • ADR sensor
  • TDR sensor

Cite this