We present an information architecture using Web services for exchanging and utilizing geotechnical information, which is of critical interest to a large number of municipal, state and federal agencies as well as private enterprises involved with civil infrastructures. For example, in the case of soil liquefaction hazard assessment, insurance companies rely on the availability of geotechnical d...

Following the 2012 Emilia-Romagna seismic sequence, widespread liquefaction of silty sands was observed, providing opportunity to enhance our knowledge influence fines content on hazard and mitigation works. This paper presents results a thorough geotechnical investigation performed in connection with full-scale controlled blast tests Bondeno, Italy, small village that suffered 2012. Piezocone ...

This study describes a general liquefaction flow instability criterion for elastoplastic soils based on the concept of loss of uniqueness. We apply the criterion to the general case of axisymmetric loading and invoke the concepts of effective stresses and loss of controllability to arrive at a general criterion for the onset of liquefaction flow. The criterion is used in conjunction with an ela...

During transportation, there will be vaporization of LNG producing boil-off gas (BOG) and its re-liquefaction is required considering that large volume of BOG to be vented out. A cryogenic refrigeration cycle is utilized in order to re-liquefy the BOG and returns it to the cargo tank. Kapitza and claude are the usually used LNG re-liquefaction cycles. The developments in the processes adopted f...

The lower Cimanuk catchment area which will be developed as industrial is dominated by Quaternary deposits are susceptible againts liquefaction if large earthquakes occurred. presence of Subang, Cirebon 1 and 2 active fault segments trigger earthquake potentially liquefaction. This study aims to characterize the type sedimentary facies induced hazard in area, Indramayu, West Java. research meth...

Iran is an active seismic region. Earthquake damage is commonly controlled by three interacting factors including source and path characteristics, local geological and geotechnical conditions and type of the structures. Obviously, all of this would require analysis and presentation of a large amount of geological, seismological and geotechnical data. In this paper, nonlinear geotechnical seismi...

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...

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...

Soil liquefaction is a phenomenon that can occur when soil loses strength and behaves like liquid during an earthquake. A site investigation essential for determining site’s susceptibility to liquefaction, these investigations frequently generate project-specific geotechnical reports. However, many of reports are stored unused after construction projects completed. This study suggests consolida...