Portable test set SET SEISMIC CROSS HOLE

compactautomatic

The SET CROSS HOLE SEISMIC is our set of instruments for borehole surveys specifically designed for a thorough geophysical investigation of the subsurface and for the measurement of seismic waves of compression and shear specifically designed for the seismic survey of concrete dams, soil materials and embankments Cross-Hole test consists in the direct measurements of horizontally travelling compression (P) and shear (Sv) seismic waves at test sites (i.e soil materials, concrete dams, embankments, etc) in order to get Elastic modules and local site characteristics. Two specific borehole seismic sources are used to generate a seismic wave train.. One or more receivers are used to detect the arrival of the seismic wave train in offset borings; the distance between boreholes at the test depths is measured using a borehole deviation survey (Inclis DH). Wave velocity is calculated from the measured distance and travel time for the respective wave train. APPLICATIONS • Seismic cross-hole (2 or 3 bore holes) • Seismic down-hole • Seismic tomography • Estimation of ground elastic moduli • Cavities / faults detection • Seepages detection SOLGEO SPARKER TM is an automatic source used to generate P waves; it works at many different levels of power (from 100J to 500J) ensuring frequency contents from 1 it must be used in boreholes filled with water.