A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Undrained cyclic response of a silicate-grouted sand for liquefaction mitigation purposes
An experimental comparative study of a silicate-grouted sand is presented. The experimental procedure adopted for preparing high-quality treated samples is accurately described together with test procedures. The overall experimental investigation comprises unconfined compressive strength (UCS) tests, undrained monotonic simple shear (SS) tests, undrained cyclic simple shear and triaxial (TX) tests. A gain in strength due to the sodium-silicate grout is apparent from both undrained monotonic and cyclic test results. The influence of loading mode on undrained cyclic stress-strain-strength behaviour of treated sand samples is explored based on a comparison between simple shear and conventional triaxial stress conditions. The simple shear device is properly adopted to allow a reliable assessment of liquefaction resistance improvement in untreated sand samples. The paper highlights that, regardless of test conditions, similarities exist between the behaviour of loose-treated samples and that of dense- untreated samples, in terms of undrained cyclic shear strength. Time effects are also explored taking into account the variation of curing time and loading frequency.
Undrained cyclic response of a silicate-grouted sand for liquefaction mitigation purposes
An experimental comparative study of a silicate-grouted sand is presented. The experimental procedure adopted for preparing high-quality treated samples is accurately described together with test procedures. The overall experimental investigation comprises unconfined compressive strength (UCS) tests, undrained monotonic simple shear (SS) tests, undrained cyclic simple shear and triaxial (TX) tests. A gain in strength due to the sodium-silicate grout is apparent from both undrained monotonic and cyclic test results. The influence of loading mode on undrained cyclic stress-strain-strength behaviour of treated sand samples is explored based on a comparison between simple shear and conventional triaxial stress conditions. The simple shear device is properly adopted to allow a reliable assessment of liquefaction resistance improvement in untreated sand samples. The paper highlights that, regardless of test conditions, similarities exist between the behaviour of loose-treated samples and that of dense- untreated samples, in terms of undrained cyclic shear strength. Time effects are also explored taking into account the variation of curing time and loading frequency.
Undrained cyclic response of a silicate-grouted sand for liquefaction mitigation purposes
Porcino, Daniela (author) / Marciano, Vincenzo (author) / Granata, Raffaella (author)
Geomechanics and Geoengineering ; 6 ; 155-170
2011-09-01
16 pages
Article (Journal)
Electronic Resource
English
Undrained cyclic response of a silicate-grouted sand for liquefaction mitigation purposes
| Online Contents | 2011
Cyclic and Damping Properties of Silicate-Grouted Sand
| British Library Online Contents | 2000
Liquefaction Potential of Grouted Sand
| British Library Conference Proceedings | 2000
Dynamic Undrained Shear Strength Behavior of Bentonite–Grouted Sand
| Springer Verlag | 2019
Dynamic Undrained Shear Strength Behavior of Bentonite–Grouted Sand
| Online Contents | 2019