Page 38 - The Consequences of an Incorrect Seismic Survey

Conclusions

1. The need for correct ground information is vital to engineering design.

2. Some consequences to the design/construction owing to information

deficiencies are presented.

3. At the example project site, physical boreholes showed shallow bedrock

prevailing over the northern half of the site but with very deep bedrock
at the south.

4. The seismic refraction survey provided a picture of shallow bedrock over

the entire site.

5. Pile foundation construction showed that the seismic survey was

incorrect over most areas of the site.

6. The adoption of the dual pile system allowed piles construction to
respond efficiently to the incorrect bedrock depths suggested by the

seismic refraction survey.

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