TY - JOUR
T1 - Blast densification
T2 - A proposed methodology to quantify the amount of densification required to prevent liquefaction and flow in sandy soils
AU - Vega-Posada, Carlos Alberto
AU - Zapata-Medina, David Guillermo
AU - Ramos-Cañon, Alfonso Mariano
N1 - Funding Information:
Financial support for the first author was provided by the Infrastructure Technology Institute (ITI) of Northwestern University and the National Science Foundation. The laboratory test results used for the sample calculation were carried out at Northwestern University while the first author was a graduate research assistant in the Department of Civil and Environmental Engineering. The author wishes to thank Dr. Richard Finno, professor at Northwestern University, for his valuable comments and encouragement.
PY - 2016
Y1 - 2016
N2 - This paper presents a methodology to quantify the amount of blast densification or number of passes required for a given project to prevent liquefaction and flow in saturated, loose sandy soils. The proposed methodology is based on the concepts of the critical state soil mechanics, and the number of passes is chosen so that the final state of stresses of the blasted layer is located below the critical state line of the soil, where a dilative response is expected. Field and laboratory results of a blast densification program conducted at a waste disposal landfill located in South Carolina, USA, are presented and used to evaluate the proposed approach. A step-by-step example is presented in detail for this purpose. This methodology could provide to engineers a rational manner to estimate how much improvement is required in the soil to meet the design objective of a particular project and the costs associated with it.
AB - This paper presents a methodology to quantify the amount of blast densification or number of passes required for a given project to prevent liquefaction and flow in saturated, loose sandy soils. The proposed methodology is based on the concepts of the critical state soil mechanics, and the number of passes is chosen so that the final state of stresses of the blasted layer is located below the critical state line of the soil, where a dilative response is expected. Field and laboratory results of a blast densification program conducted at a waste disposal landfill located in South Carolina, USA, are presented and used to evaluate the proposed approach. A step-by-step example is presented in detail for this purpose. This methodology could provide to engineers a rational manner to estimate how much improvement is required in the soil to meet the design objective of a particular project and the costs associated with it.
KW - Blast densification
KW - Densification
KW - Liquefaction
KW - Loose sands
KW - Soil improvementj
UR - http://www.scopus.com/inward/record.url?scp=84995428195&partnerID=8YFLogxK
U2 - 10.17533/udea.redin.n80a07
DO - 10.17533/udea.redin.n80a07
M3 - Article
AN - SCOPUS:84995428195
SN - 0120-6230
VL - 2016
SP - 56
EP - 62
JO - Revista Facultad de Ingenieria
JF - Revista Facultad de Ingenieria
IS - 80
ER -