TY - JOUR
T1 - Effect of Void Ratio on K 0 of a Sand by Means of Triaxial Stress-Path Testing
AU - Santana, Teresa
AU - Candeias, Mariline
N1 - sem pdf conforme despacho.
PY - 2018/2/1
Y1 - 2018/2/1
N2 - This paper presents an experimental technique using a computer controlled triaxial test to evaluate K0, not requiring the use of any radial measurement transducers. It uses commercial software that applies a ramp of radial stress with back volume measurement and control. The method is applicable only to saturated specimens in drained conditions. The equipment used is briefly described, as well as the testing procedures. Results of laboratory tests on Toyoura sand specimens, with four different initial void ratios, are presented. For the preparation of all specimens tested, a dry funnel deposition method with undercompaction was used. It was concluded that, for the initial void ratios tested and for the stress level induced, stress-strain behavior fell in a narrow range the K0NC values were slightly higher for looser specimens, although lower than predicted by Jaky’s equation.
AB - This paper presents an experimental technique using a computer controlled triaxial test to evaluate K0, not requiring the use of any radial measurement transducers. It uses commercial software that applies a ramp of radial stress with back volume measurement and control. The method is applicable only to saturated specimens in drained conditions. The equipment used is briefly described, as well as the testing procedures. Results of laboratory tests on Toyoura sand specimens, with four different initial void ratios, are presented. For the preparation of all specimens tested, a dry funnel deposition method with undercompaction was used. It was concluded that, for the initial void ratios tested and for the stress level induced, stress-strain behavior fell in a narrow range the K0NC values were slightly higher for looser specimens, although lower than predicted by Jaky’s equation.
KW - Coefficient of earth pressure at rest
KW - Laboratory triaxial test
KW - Toyoura sand
KW - Void ratio
UR - http://www.scopus.com/inward/record.url?scp=85027306234&partnerID=8YFLogxK
U2 - 10.1007/s10706-017-0324-7
DO - 10.1007/s10706-017-0324-7
M3 - Article
AN - SCOPUS:85027306234
SN - 0960-3182
VL - 36
SP - 257
EP - 266
JO - Geotechnical and Geological Engineering
JF - Geotechnical and Geological Engineering
IS - 1
ER -