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

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. Referenced Documents purchase separately D4954 documents listed below are referenced within the subject standard but are not provided as part of the standard.

A qualified engineer shall approve the apparatus used for applying the impact force, driving appurtenances, test rigging, hoist equipment, support frames, templates, and test aztm.

It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. This standard is not asm in any packages. For a specific precautionary statement, see Note 4. Imperative sentences indicate mandatory provisions. Reliable results depend on many factors; Practice D provides a means of evaluating some of those factors.

If the Engineer does not have adequate previous experience for the specific site and pile type with the analysis of dynamic test data for tension capacity, then a static load test carried out according to Test Method D should be used to verify tension capacity estimates. These notes and footnotes excluding those in tables and figures shall not be considered as requirements of the standard.

Your Alert Profile lists the documents that will be monitored. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. We have no amendments or corrections for this standard. Users of this test method are cautioned that compliance with Practice D does not in itself assure reliable results.

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Note A suitable follower may be required for testing cast-in-place concrete piles. A qualified engineer shall approve the apparatus used for applying the impact force, driving appurtenances, test rigging, hoist equipment, support frames, templates, and test procedures.

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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. A qualified engineer should directly supervise the asgm 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.

Additional transducers embedded near the pile toe may also help improve tension capacity estimates. Active view current version of standard. For mandrel driven piles, the mandrel may be instrumented in a similar way to a driven pile provided that the mandrel is constructed of a single member aetm no joints.

No other units of measurement are included in this standard. 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 penetration for a series of test blows to fully mobilize the capacity.

Link to Xstm This link will always route to the current Active version of the standard. Plans, specifications, or provisions or combinations thereof prepared by a qualified engineer may provide additional requirements and procedures as needed to satisfy the objectives of a particular test program. It is beyond the scope of this standard to consider significant digits used in analysis methods for engineering design. Force and velocity are typically derived from measured strain and acceleration.

ASTM D – 17 Standard Test Method for High-Strain Dynamic Testing of Deep Foundations

Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method. In addition, they are representative of the significant digits that should generally be retained.

In addition, they are representative of the significant digits that should generally be retained. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Already Subscribed to this document.

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Test Method D provides a direct and more reliable measurement of static tension capacity. 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. 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.

Reporting of test results in astk other than SI shall not be regarded as nonconformance with this test method. 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.

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Link to Active This link will always route to the current Active version of the 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.

The Engineer may analyze the acquired data using engineering principles and judgment to evaluate the integrity of the pile, the performance of the impact system, and the maximum compressive and tensile stresses occurring in the pile. If the document is revised or amended, you will be notified by email. Factors that may affect the axial static capacity estimated from dynamic tests include, but are not limited to the: 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 embedded length.