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1810.3.2.8 Justification of Higher Allowable Stresses
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Use of allowable stresses greater than those specified in Section 1810.3.2.6 shall be permitted where supporting data justifying such higher stresses is filed with the building official. Such substantiating data shall include the following:
- A geotechnical investigation in accordance with Section 1803.
- Load tests in accordance with Section 1810.3.3.1.2, regardless of the load supported by the element.
The design and installation of the deep foundation elements shall be under the direct supervision of a registered design professional knowledgeable in the field of soil mechanics and deep foundations who shall submit a report to the building official stating that the elements as installed satisfy the design criteria.
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