An experimental study was carried out to investigate seabed-pipeline interactions with regard soil liquefaction. For a high proportion (30 60%) of fine sediment, four groups tests were configured reproduce liquefaction around pipelines for different initial pipe depths, densities and wave conditions (wave height period). The focused on verifying the theoretically computed areas failure by analy...

For years, geotechnical engineers have been concerned about expansive soils. Expansive soils are characterized by large volumetric changes related to variations in moisture content. Variations soil water content may take place naturally during seasonal or maybe manmade caused dewatering activities. The quantity of shrinkage and swell is influenced numerous parameters, including the minerals cla...

The province of Tandjile is one the 23 provinces Republic Chad. drinking water supply rate in this region remains low. Part population obtains its through open wells and / or surface water. Climatic anthropogenic variations recent years have shown how much groundwater can be influenced both terms quality quantity to used. objective study provide knowledge on state hydrodynamic hydrochemical par...

offshore pipelines used for oil and gas transportation are often buried to avoid damage from fishing activities and to provide thermal insulation. thermal expansion and contraction of the pipeline during operation can lead to lateral or upheaval buckling. a safe buried pipeline design must take into account a reliable evaluation of soil uplift resistance and pipe embedment depth. while the cost...

The study area belongs to the southern edge of central High Atlas. It is limited North by Sub-atlasic accident and South extension Eastern Anti Atlas formations. To determine depositional environments Senonian series, a sedimentological analysis facies was carried out based on field observations recognition sedimentary structures textures. An exoscopic quartz grains also systematic prospecting ...