ASTM D4945 PDF

Dynamic Pile Testing. ASTM D Pile Driving Analyzer ®. Garland Likins, Pile Dynamics, Inc. PDCA Professor’s Institute. Garland Likins, Pile Dynamics. ASTM D Standard Test Method for High-Strain Dynamic Testing of Deep Foundations. standard by ASTM International, 11/01/ View all product. 1 Jan Buy ASTM D TEST METHOD FOR HIGH-STRAIN DYNAMIC TESTING OF DEEP FOUNDATIONS from SAI Global.

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It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. Factors that may affect the axial static capacity estimated from dynamic tests include, but are not limited to the: It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Force and velocity are typically derived from measured strain and acceleration.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard. In addition, they are representative of the significant digits that should generally be retained.

For a specific precautionary statement, see Note 4. No other units of measurement are included in this standard. Link to Active This link will always route to the current Active version of the standard. Already Subscribed to this document. The analysis of a dynamic test will under predict the ultimate axial static compression capacity if the pile movement during the impact event is too small. In addition, they are representative of the significant digits that should generally be retained.

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Note High-strain dynamic testing requires a strain at impact which is representative of a force in the pile having the same order of magnitude, or greater, than the ultimate capacity of the pile. Add to Alert PDF. This standard is also available to be included in Standards Subscriptions. Subscription pricing is determined by: This test method is applicable to deep foundation units that function in a manner similar to foundation piles, regardless of their method of installation provided that they are receptive to high strain impact testing.

Although interpretation of the dynamic test analysis may provide an estimate of the pile’s tension uplift capacity, users of this standard are cautioned to interpret conservatively the side resistance estimated from analysis of a single dynamic measurement location, and to avoid tension capacity estimates altogether for piles with less than 10 m atsm length.

Imperative sentences indicate mandatory provisions. Additional transducers embedded near the pile toe may also help improve tension capacity estimates. Historical Version s – view previous versions of standard. A permanent net penetration of as little as 2 mm per impact may indicate that sufficient movement has occurred during the impact event to fully mobilize the capacity.

Static capacity may also decrease or increase over time after the pile installation, and both static and dynamic tests represent the capacity at the time of the respective test.

It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. Imperative sentences indicate mandatory provisions. Active view current version of standard. Correlations between measured ultimate axial static compression capacity and dynamic test estimates generally improve when using dynamic restrike tests that account for soil strength changes with time see 6.

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It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

ASTM D – 00 Standard Test Method for High-Strain Dynamic Testing of Piles

Asmt other units of measurement are included in this standard. You may delete a document from your Alert Profile at any time. Users of this test method are zstm that compliance with Practice D does not in itself assure reliable results. A qualified engineer should directly supervise the acquisition of field data and the interpretation of the test results so as to predict the actual performance and adequacy of deep foundations used in the constructed foundation.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

If the document is revised or amended, you will be notified by email. This standard is not included in any packages. However, high displacement driven piles may require greater movement to avoid under predicting the static capacity, and cast-in-place piles often require a larger cumulative permanent net asmt for a series of test blows to fully mobilize the capacity.

The quality of the result produced by this test method is dependent on the competence of the personnel performing it, and the suitability of the equipment and facilities used.

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