Data collection for quantity assessment

The information required to estimate the volume of suitable fill available generally consists of  

This information can be used to identify and delimit the fill deposits that may be covered, intersected and/or underlain by unsuitable materials. The number of boreholes, vibrocores and/or Cone Penetration Tests can be reduced by carrying out a geophysical survey. Seismic reflection or refraction surveys and geo-electrical surveys are the most common techniques. Reference is made to Chapter 3. 

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