Studies on the dynamic porewater pressure response induced by single shallow-buried detonations in saturated sand are limited. A series of single shallow-buried detonation tests was conducted in a large pit filled with saturated sand. The objective of the tests was to study the influence of charge weight and burial depth on porewater pressure generation. Comparisons of excess porewater pressures obtained from the tests and previous liquefaction studies on fully contained explosions are presented. For a given cube-root scaled distance, the excess porewater pressure ratio (PPR) induced by a shallowburied detonation is much lower than that of a fully contained explosion. The burial depth of the explosive, which is not considered in previous empirical formulas, is a significant parameter in addition to the scaled distance. A modified empirical model as a function of the scaled burial depth and other conventional factors is proposed and shown to provide valuable information for predicting the PPR induced by single shallow-buried explosions in saturated sand.ICE Publishing: all rights reserved NOTATION C u uniformity coefficient D 10 effective grain size (mm) D 50 average grain size (mm) D 60 control grain size (mm) D R relative density (%) d burial depth of explosive charge (m) G s soil particle density q t cone tip resistance (kPa) R distance from explosive source (m) W equivalent weight of TNT (kg) Δu porewater pressure increment (kPa) γ sat total unit weight of saturated sand (kN/m 3 ) σ′ v0 initial vertical effective stress (kPa)
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.