Downhole Shear Wave VelocityThis method is a variation of the seismic refraction method employing a downhole tri-axial geophone and a surface energy source or a downhole source. The energy propagates from the source to the downhole tri-axial geophone and can be recorded as compression and/or shear waves. This method provides detailed layer velocity information and the data can be used to evaluate the compression wave and shear wave velocities of the subsurface soils versus depth. These values can be used to help calculate certain dynamic moduli for modeling the seismic response of a site. |
Power Plant, Combined Cycle UnitsNinyo & Moore performed geophysical and geotechnical evaluations relative to the construction of a power station consisting of two separate 500 megawatt power plants. The facilities included tur- bine/generator units with stacks, cooling towers, condensing units, water treatment structures, control buildings, and electrical switching facilities. Design-phase services included... |
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