There are a number of parameters influencing the dynamic and seismic response of bridges. Of these, two important parameters warranting special notice include: the properties of the neoperenes in the state of connection between girders and columns and the shear stiffness of underlying soil in the level of bridge substructure’s connectivity to the ground. In &#10this paper, the effects of these ...

Introduction: One of NASA’s current objectives is to send humans to an asteroid. To make this goal feasible, it is critical to perform in-situ measurements to characterize these surfaces in order to understand the environment that astronauts, vehicles, and equipment will be exposed to while exploring. Currently, there is very little knowledge about the geophysical and geotechnical properties of...

It is a famous q uote that “Every structur e is supported on soils or rock, t hose that aren’t, either fly, float, or fall over”. Soils are natural deposits on which humans have no control. Soils at no two sites are likely to be the same. Even, at a particular point at a sit e, different types of soils exist at different depths. Several theories and formulas have been developed since the birth ...

This paper proposes a new mathematical model for the open pit mine planning problem, based on continuous functional analysis. The traditional models for this problem have been constructed by using discrete 0−1 decision variables, giving rise to large-scale combinatorial and Mixed Integer Programming (MIP) problems. Instead, we use a continuous approach which allows for a refined imposition of s...