Module 1 : Site Exploration and Geotechnical Investigation
Lecture 2 : Boring Methods of Exploration [ Section 2.1 : Different Types of Boring Methods ]
   
  Applications
The various applications are:
Depth and characterization of the bed rock surfaces,
Buried channel location,
Depth of the water table,
Depth and continuity of the stratigraphy interfaces,
Mapping of faults and other structural features.
Disadvantages :
Complete picture of stratification of layer upto 10m depth.
Refraction observations generally employ fewer source and receiver locations and are thus relatively cheap to acquire.
Little processing is done on refraction observations with the exception of trace scaling or filtering to help in the process of picking the arrival times of the initial ground motion.
 
Because such a small portion of the recorded ground motion is used, developing models and interpretations is no more difficult than our previous efforts with other geophysical surveys.
 
Provides seismic velocity information for estimating material properties.
Provides greater vertical resolution than electrical, magnetic, or gravity methods.
Data acquistion requires very limited intrusive activity is non-destructive.
 
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