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ASTM D 4945 : 2012

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Standard Test Method for High-Strain Dynamic Testing of Deep Foundations
Available format(s)

Hardcopy , PDF

Superseded date

11-11-2014

Language(s)

English

Published date

05-01-2012

1.1 This dynamic test method covers the procedure for applying an axial impact force with a pile driving hammer or a large drop weight that will cause a relatively high strain at the top of an individual vertical or inclined deep foundation unit, and for measuring the subsequent force and velocity response of that deep foundation unit. High-strain dynamic testing applies to any deep foundation unit, also referred to herein as a pile, which functions in a manner similar to a driven pile or a cast-in-place pile regardless of the method of installation, and which conforms with the requirements of this test method.

1.2 This standard provides minimum requirements for dynamic testing of deep foundations. 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. The engineer in responsible charge of the foundation design, referred to herein as the Engineer, shall approve any deviations, deletions, or additions to the requirements of this standard.

1.3 The proper conduct and evaluation of high-strain dynamic tests requires special knowledge and experience. 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. 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.

1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. The word shall indicates a mandatory provision, and the word should indicates a recommended or advisory provision. Imperative sentences indicate mandatory provisions.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.

1.7 The method used to specify how data are collected, calculated, or recorded in this standard is not directly related to the accuracy to which the data can be applied in design or other uses, or both. How one applies the results obtained using this standard is beyond its scope.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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. For a specific precautionary statement, see Note 4.

Committee
D 18
DocumentType
Test Method
Pages
9
PublisherName
American Society for Testing and Materials
Status
Superseded
SupersededBy
Supersedes

ACI 376 : 2011 CODE REQUIREMENTS FOR DESIGN AND CONSTRUCTION OF CONCRETE STRUCTURES FOR THE CONTAINMENT OF REFRIGERATED LIQUEFIED GASES AND COMMENTARY
ASCE 20 96 : 1997 STANDARD GUIDELINES FOR THE DESIGN AND INSTALLATION OF PILE FOUNDATIONS
S6.1-14 Commentary on S6-14, Canadian Highway Bridge Design Code
PIP STS02465 : 2012 AUGERED CAST-IN-PLACE PILES INSTALLATION SPECIFICATION
ACI 371R : 2016 GUIDE FOR THE ANALYSIS, DESIGN, AND CONSTRUCTION OF ELEVATED CONCRETE AND COMPOSITE STEEL-CONCRETE WATER STORAGE TANKS
ASTM D 6760 : 2016 Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing
ICC 2012 INTERNATIONAL BUILDING CODE : 2012 INTERNATIONAL BUILDING CODE
ACI 543R : 2012 GUIDE TO DESIGN, MANUFACTURE, AND INSTALLATION OF CONCRETE PILES
AASHTO T 298 : 2015 METHOD OF TEST FOR HIGH-STRAIN DYNAMIC TESTING OF PILES
MIL-HDBK-1007-3 Base Document:1997 SOIL DYNAMICS AND SPECIAL DESIGN ASPECTS
ACI 376M : 2011 CODE REQUIREMENTS FOR DESIGN AND CONSTRUCTION OF CONCRETE STRUCTURES FOR THE CONTAINMENT OF REFRIGERATED LIQUEFIED GASES (METRIC)
ASTM D 6760 : 2016 : REDLINE Standard Test Method for Integrity Testing of Concrete Deep Foundations by Ultrasonic Crosshole Testing

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