Porosity and water saturation percent, or their product—the water content—are important parameters for most hydrogeologic studies. Geophysical methods, especially the resistivity method, are routinely applied to studying ...

O GEORADAR é um equipamento que permite a prospeção de terrenos e/ou materiais, cuja técnica se baseia na propagação de ondas eletromagnéticas em meios contínuos, e na reflexão destas ondas em interfaces entre materiais ...

Population growth and social and economic development demand increasing volumes of water for public supply, especially in scenarios where surface sources such as rivers may not meet the basic demands for the population. ...

Soil thermal characterization is an important aspect affecting the performance of Ground Heat Exchangers (GHE) in a Shallow Geothermal Energy (SGE) system application. Thermal conductivity and specific heat capacity are ...

The municipality of Lisbon is currently planning the construction of two drainage tunnels in order to control the periodic flooding that occurs in the city during the winter. The first tunnel is 5 km long with DN5500 diameter, ...

Rail transport is the most efficient way of transport from an energetic and environmental point of view. The integration of geosynthetics im the rehabilitation solutions has grown substantially in the last decade, such as ...

Initially, the subsidence geometry due to tunnelling is described using an empirical Gaussian function. Then, an analytical expression for estimating the displacement field is discussed, considering the effects of ovalization ...

This paper presents an embedded data acquisition system for the mobile probe liner integrity survey method using one matrix of electrodes. The mobile probe is used for landfill fault detection on barriers systems. These ...

A sanitary landfill for municipal solid waste (MSW), generated in the Seixal and Almada municipalities, has been constructed. It is being developed in phases, covering an area of 14 ha, which will serve the region sufficiently ...

As geomembranas de polietileno de alta densidade são utilizadas em várias aplicações em geotecnia, permanecendo, por vezes, expostas às condições climáticas por longos períodos. Para avaliar a evolução das propriedades ...