One of the main issues in design bases and foundations on water-saturated soils conditions possible seismic impacts is geotechnical substantiation possibil-ity construction. Among influencing factors, one can single out assessment ability sandy soil to resist vibration liquefaction. The paper presents re-sults studying behavior samples under triaxial cyclic loading, which equivalent strength ac...

SoilEngineering is a user-friendly, interactive Microsoft Excel spreadsheet program for the geotechnical and geophysical analysis of soils. The influence of soil behavior on earthquake characteristics and/or structural design is one of the major elements in investigating earthquake forces, and thus the structural response with static and dynamic loads. With its interactive nature, the program p...

Torrefaction is an effective pretreatment method to improve the uniformity and quality of lignocellolosic biomass before further thermal processing (e.g., gasification, combustion). The objective of this study was to determine the impacts of torrefaction as a pretreatment before liquefaction. Wood chips were torrefied for 2 h at three different temperatures (230, 260, 290 °C) and then subjected...

The determination of liquefaction potential is required to take into account a large number of parameters, which creates a complex nonlinear structure of the liquefaction phenomenon. The conventional methods rely on simple statistical and empirical relations or charts. However, they cannot characterise these complexities. Genetic algorithms are suited to solve these types of problems. A genetic...

This paper documents the successful application of explosive compaction technology for the densification of granular soils using case history data from a number of sites. The data include densification projects in urban areas, for dam foundations and for offshore structures. The paper provides general background information on the theory of explosive compaction of soils, design considerations, ...

The microwave liquefaction kinetics of corn stover in the presence of ethylene glycol (EG) using sulfuric acid as a catalyst was studied. The liquefaction apparent rate constant (k) was examined using a first-order reaction model. The k values of corn stover increased from 0.080 min -1 to 0.165 min -1 , with the reaction temperature increasing from 120 o C to 180 o C. The k value of cellulose a...

Earthquake An earthquake is the shaking or trembling of the earth, which may be natural or man-made (e.g., due to atomic explosion) in origin. An earthquake is a sudden, strong movement or slipping of the earth’s crust that result in a sudden release of energy. Earthquakes occur at certain locations where the tectonic plates which form the earth’s crust, coincide. Populations that live near the...

Abstract By conducting numerical simulations of Treasure Island site in 1989 Loma Prieta earthquake, the Hilbert-Huang transform was used to study soil liquefaction. The UBC3D-PLM constitutive model simulate dynamic behavior sand, non-liquefied simulated by Hardening Small Strain model, and seismic information recorded PEER database for deconvolution analysis one-dimensional equivalent linear m...

Liquefaction is a major concern, especially in loose soil subjected to vibrations, which may lead severe damage buildings and infrastructure. In this paper, the influence of vertical vibrational loading on liquefaction potential natural sabkha was numerically examined understand effects different parameters, potential. The parameters considered study include displacement amplitude, frequency, m...

Liquefaction is one of the causesof ground and structural damages during earthquake. The occurrence liquefaction earthquake caused by contractive behavior loose sands subjected to cyclic loading. Due this phenomenon, soil deposits will lose its strength, causing deformation settlement. In study, seismic response road embankment with proposed countermeasures analyzedby conducting a centrifuge mo...