Supplementing Borehole Investigations with Geophysical Techniques in HDD
While boreholes remain the primary method for gathering subsurface data, there are instances where the results may be inconclusive or incomplete, necessitating additional analysis. Shallow geophysical methods, such as seismic surveys, ground-penetrating radar, electromagnetic surveys, and electrical resistivity surveys, can provide valuable supplementary data. However, the effectiveness of these techniques depends on the specific soil and bedrock conditions at the site. It's important to note that these geophysical methods should complement, not replace, borehole investigations. When used in combination with borehole data, these techniques can enhance the accuracy of subsurface interpretations, although relying on them alone can lead to difficulties in interpretation, especially in challenging soil conditions.
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