Experimental study of a naturally weathered stiff clay

Marco Rosone, Camillo Airo' Farulla, Maria Clorinda Mandaglio, Nicola Moraci

Risultato della ricerca: Article

12 Citazioni (Scopus)

Abstract

Studying the shear strength of a naturally weathered clay is important to understand rain-induced slope failures in weathered soils. However, experimental studies on naturally weathered soils are limited. The paper focuses on the laboratory experimental investigation carried out to analyse the shear strength of a naturally weathered stiff clay that can be found in unsaturated conditions in situ. This has an important practical relevance in the evaluation of the stability conditions of natural slopes at clay outcrops. Different experimental techniques of suction measurement were used to obtain the soil-water retention curve of the clay over a wide range of suctions. Scanning electronic microscope (SEM) observations and results of mercury intrusion porosimetry (MIP) tests are also presented to highlight the considerable fabric arrangement modifications at the microstructural level induced by wetting-drying processes. Moreover, isotropic consolidated drained triaxial compression tests on undisturbed and reconstituted saturated specimens and controlled-suction triaxial compression tests on unsaturated undisturbed specimens were carried out. The test results allowed examination of the saturated mechanical behaviour of clay and comparison of the mechanical behaviour of the saturated material with that in an unsaturated condition.
Lingua originaleEnglish
pagine (da-a)2047-2057
Numero di pagine11
RivistaCanadian Geotechnical Journal
Volume53
Stato di pubblicazionePublished - 2016

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Clay
experimental study
clay
suction
Soils
Shear strength
shear strength
compression
slope failure
water retention
wetting
Rain
Wetting
Drying
outcrop
Microscopes
soil
soil water
Scanning
test

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

Cita questo

Experimental study of a naturally weathered stiff clay. / Rosone, Marco; Airo' Farulla, Camillo; Mandaglio, Maria Clorinda; Moraci, Nicola.

In: Canadian Geotechnical Journal, Vol. 53, 2016, pag. 2047-2057.

Risultato della ricerca: Article

Rosone, Marco ; Airo' Farulla, Camillo ; Mandaglio, Maria Clorinda ; Moraci, Nicola. / Experimental study of a naturally weathered stiff clay. In: Canadian Geotechnical Journal. 2016 ; Vol. 53. pagg. 2047-2057.
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