The geology of a proposed major industrial site is thought to consist of a thin layer...

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Civil Engineering

The geology of a proposed major industrial site is thought toconsist of a thin layer (1-5m) of unconsolidated sandy materialoverlying dolerite bedrock. The dolerite is known to have a veryirregular upper surface and maybe highly weathered in places.Describe geophysical investigation techniques that may be suitablefor mapping the thickness of the unconsolidated sand and also thedistribution of unweathered basalt at shallow depths. For eachmethod you recommend, outline: a) the basic physical principles ofthe technique, b) the expected outcomes of the survey.

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The geophysical investigation methods that I recommend for determining the thickness of unconsolidated sand and distribution of basalt are a seismic refraction method b 2D electrical resistivity Imaging SEISMIC REFRACTION BASIC PRINCIPLES AND SCOPE The seismic refraction method is one of the geophysical investigation technique to determine the characteristics of soil and rock Basic principle A seismic signal is introduced into the subsurface via a shot point using explosives hammer blow dropped weight or an elastic wave generator The energy generated travels either directly through the See Answer

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