Abstract

MOYA-GUTIERREZ, Anyelo José; TORRES-PENA, Jairo Alberto  and  CONTRERAS-MARTINEZ, Manuel. Site characterization using geophysical and geotechnical Prospecting. Case study main road North Central Trunk (National Route 55) at Km 68 + 500 in the Municipality of Pamplona, North of Santander, Colombia. Bol. cienc. tierra [online]. 2020, n.48, pp.30-45.  Epub Feb 01, 2022. ISSN 0120-3630.  https://doi.org/10.15446/rbct.n48.85411.

In the present investigation, geophysical and geotechnical techniques were applied to characterize the subsoil at the height of Km 68 + 500 in the municipality of Pamplona, define the electrical resistivity, seismic velocity type P and S, dynamic parameters of the soil, type of soil profile and acceleration spectrum curve using NSR10 title A, carrying out two phases: one in the field, where topographic survey was performed, two (2) SPT tests, four (4) SEV, two (2) TRS lines, two (2) of MASW 1D and 2D; and the data processing phase to generate 2D images of the profile, interpret and correlate, resulting in P wave velocities between 499m / s and 1714m / s, S wave velocities between 210m / s and 466m / s and resistivities between 6.06 Ω -m and 581.05 Ω-m., Type D soil profiles composed of rigid materials, sands with the presence of clay and saturated silty clay.

Keywords : geophysics; geotechnics; bearing capacity; s wave; p wave; refraction; elastic wave.

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