RT Journal Article SR Electronic(1) A1 DUTTA, N. P.YR 1984 T1 SEISMIC REFRACTION METHOD TO STUDY THE FOUNDATION ROCK OF A DAM* JF Geophysical Prospecting, VO 32 IS 6 SP 1103 OP 1110 DO https://doi.org/10.1111/j.1365-2478.1984.tb00757.x PB European Association of Geoscientists & Engineers, SN 1365-2478, AB Abstract Dynamic elastic moduli like E, μ, K and μ of the foundation rock of a dam have been determined by finding Vp‐ and Vs‐velocities by seismic refraction with a hammer as source. Some parameters such as “fracture frequency” and “rock quality designation” (RQD) of the foundation rock have been derived using “average regression curves” and Vp‐velocities. By comparing K/μ with Vp/Vs, a few locations showing weathered conditions have been demarcated. This compares well with RQD values of those locations., UL https://www.earthdoc.org/content/journals/10.1111/j.1365-2478.1984.tb00757.x