Effect of suction on the strength of unsaturated soil

Mohd. Raihan Taha, Md Kamal Hossain, Syed Abdul Mofiz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Unsaturated soil condition which give rise to negative pore pressure is important in evaluating the stability of geotechnical structures such as slopes, retaining walls, excavations and footings. Its importance is more so in tropical countries, where rainfall and intense chemical weathering have resulted in the formation of such soils. In this study, the shear strength characteristics of granite residual soil were investigated using consolidated drained triaxial tests with special emphasis on the effects of the negative pore pressure, i.e. the matric suction. These tests involved shearing under either a constant net confining pressure and varying matric suctions or under a constant matric suction and varying net confining pressure. The influence of confining pressure and matric suction on shear strength was analyzed and a linear relationship was found to relate matric suction and shear strength.

Original languageEnglish
Title of host publicationGeotechnical Special Publication
PublisherASCE
Pages210-221
Number of pages12
Edition99
Publication statusPublished - 2000
EventThe GeoDenver 2000 - Unsaturated Soils Sessions 'Advances in Ultrasound Geotechnical' - Denver, CO, USA
Duration: 5 Aug 20005 Aug 2000

Other

OtherThe GeoDenver 2000 - Unsaturated Soils Sessions 'Advances in Ultrasound Geotechnical'
CityDenver, CO, USA
Period5/8/005/8/00

Fingerprint

strength (mechanics)
Shear strength
suction
Pore pressure
Soils
shear strength
confining pressure
soil
Retaining walls
Granite
pore pressure
Weathering
Shearing
Excavation
Rain
residual soil
granite
footing
retaining wall
chemical weathering

ASJC Scopus subject areas

  • Soil Science
  • Building and Construction
  • Architecture

Cite this

Taha, M. R., Hossain, M. K., & Mofiz, S. A. (2000). Effect of suction on the strength of unsaturated soil. In Geotechnical Special Publication (99 ed., pp. 210-221). ASCE.

Effect of suction on the strength of unsaturated soil. / Taha, Mohd. Raihan; Hossain, Md Kamal; Mofiz, Syed Abdul.

Geotechnical Special Publication. 99. ed. ASCE, 2000. p. 210-221.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Taha, MR, Hossain, MK & Mofiz, SA 2000, Effect of suction on the strength of unsaturated soil. in Geotechnical Special Publication. 99 edn, ASCE, pp. 210-221, The GeoDenver 2000 - Unsaturated Soils Sessions 'Advances in Ultrasound Geotechnical', Denver, CO, USA, 5/8/00.
Taha MR, Hossain MK, Mofiz SA. Effect of suction on the strength of unsaturated soil. In Geotechnical Special Publication. 99 ed. ASCE. 2000. p. 210-221
Taha, Mohd. Raihan ; Hossain, Md Kamal ; Mofiz, Syed Abdul. / Effect of suction on the strength of unsaturated soil. Geotechnical Special Publication. 99. ed. ASCE, 2000. pp. 210-221
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