The fly ash is a waste produced mostly from the burning of coal in thermal power station which contributes to environmental pollution. It is naturally-cementitious coal combustion by-product. Many studies have been reported in the literature on the performance evaluation of soil – fly ash system as well soil-fly ashfiber system. Although ample studies have been reported with randomly distribute...

The long-term goal of this project is to develop techniques to collect and use remotely sensed acoustic data to make robust predictions of seafloor physical, acoustic and geotechnical properties in denied areas at spatial and temporal scales appropriate for tactical applications. The work described is a collaboration of research groups at the University of New Hampshire (CCOM) and the Universit...

The experiences of developing engineering geological models in karst areas for designing and construction purposes prove the necessity of considering at least three basic submodels: sedimentological, structural-tectonic and the weathering one. The research presented here deals with very important and frequently neglected segments in each of the submodels. Therefore, particular attention should ...

In recent years, geotechnical engineers have paid much attention on reliability-based design. The probability density functions (PDFs) of the uncertain soil parameters are required for the reliability-based design. Once these PDFs are obtained, reliability analysis can be conducted, and reliability-based design can be achieved. Among the soil parameters, soil strengths play important roles in g...

Over the last few years or so, the use of artificial neural networks (ANNs) has increased in many areas of engineering. In particular, ANNs have been applied to many geotechnical engineering problems such as to predict pile capacity, settlement, liquefaction etc. The correlations between shear strength parameters and other soil properties individually are common among Geotechnical engineers. Bu...

This paper aims to investigate the train-induced ground vibration and appropriate countermeasures using numerical modeling by Abaqus. First, the effect of appropriate boundary modeling in wave propagation studies is addressed by illustrating the application of nonreflecting boundaries in Abaqus using infinite elements. Second, the propagation of waves in the ground was investigated by applying ...

Construction projects are inherently risky undertakings. They are exposed to uncertainties that can either result in failures or the impediment of the project to achieve some of its objectives. This is particularly true in the case of geotechnical engineering. Uncertainties of ground conditions can adversely affect project time, costs as well as safety on any construction project. Conventional ...

Outlier is attached importance in statistics and engineering, because it might result misleading identification results. However, there significant uncertainty the outlier detection, when an outlying observation lies close to boundary between outliers regular data or are sparse observations. The associated of mostly results from statistical parameters, such as mean value standard deviation. unk...

One of the main distinctions between geomaterials and other engineering materials is the spatial variation of their properties in different directions. This characteristic of geomaterials -so called heterogeneity- is studied herewith. Several spatial distributions are introduced to describe probabilistic variation of geotechnical properties of soils. Among all, the absolute normal distribution ...