ASTM D7383-10
(Test Method)Standard Test Methods for Axial Compressive Force Pulse (Rapid) Testing of Deep Foundations
Standard Test Methods for Axial Compressive Force Pulse (Rapid) Testing of Deep Foundations
SIGNIFICANCE AND USE
Based on the measurements of force and displacement at the pile top, possibly combined with those from acceleration or strain transducers located further down the pile, these test methods measure the pile top deflection in response to an axial compressive force pulse. The relatively long duration of the force pulse compared to the natural period of the test pile causes the pile to compress and translate approximately as a unit during a portion of the pulse, simultaneously mobilizing compressive axial static capacity and dynamic resistance at all points along the length of the pile for that portion of the test. The Engineer may analyze the acquired data using engineering principles and judgment to evaluate the performance of the force pulse apparatus, and the characteristics of the pile's response to the force pulse loading.
If significant permanent axial movement occurs during the axial force pulse event, the Engineer may analyze the results of the test to estimate, after assessing inertial effects and the dynamic soil and rock response along the side and bottom of the pile, the ultimate axial static compression capacity (see Note 2). The scope of this standard does not include analysis for either ultimate or design foundation capacity. Factors that may affect the axial static capacity estimated from force pulse tests include, but are not limited to, the: (1) pile installation equipment and procedures, (2) elapsed time since initial installation, (3) pile material properties and dimensions, (4) type, density, strength, stratification, and saturation of the soil, or rock, or both adjacent to and beneath the pile, (5) quality of force pulse test data, (6) foundation settlement, (7) analysis method, and (8) engineering judgment and experience. If the Engineer does not have adequate previous experience with these factors, and with the analysis of force pulse test data, then a static load test carried out according to Test Method D1143 should be used to verify estimate...
SCOPE
1.1 These test methods cover procedures for testing an individual vertical or inclined deep foundation to determine the displacement response to an axial compressive force pulse applied at its top. These test methods apply to all deep foundation units, referred to herein as “piles,” that function in a manner similar to driven or cast-in-place piles, regardless of their method of installation.
1.2 Two alternative procedures are provided:
1.2.1 Procedure A uses a combustion gas pressure apparatus to produce the required axial compressive force pulse.
1.2.2 Procedure B uses a cushioned drop mass apparatus to produce the required axial compressive force pulse.
1.3 This standard provides minimum requirements for testing deep foundations under an axial compressive force pulse. Plans, specifications, provisions (or combinations thereof) prepared by a qualified engineer, may provide additional requirements and procedures as needed to satisfy the objectives of a particular deep foundation 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.
1.4 The proper conduct and evaluation of force pulse testing 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 force pulse, rigging and hoisting equipment, support frames, templates, and test procedures.
1.5 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” indica...
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Designation: D7383 − 10
Standard Test Methods for
Axial Compressive Force Pulse (Rapid) Testing of Deep
1
Foundations
This standard is issued under the fixed designation D7383; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope mandatory provision, and the word “should” indicates a
recommended or advisory provision. Imperative sentences
1.1 These test methods cover procedures for testing an
indicate mandatory provisions.
individualverticalorinclineddeepfoundationtodeterminethe
displacement response to an axial compressive force pulse
1.6 The values stated in SI units are to be regarded as
applied at its top. These test methods apply to all deep
standard. No other units of measurement are included in this
foundation units, referred to herein as “piles,” that function in
standard.
a manner similar to driven or cast-in-place piles, regardless of
their method of installation. 1.7 All observed and calculated values shall conform to the
guidelines for significant digits and rounding established in
1.2 Two alternative procedures are provided:
Practice D6026.
1.2.1 ProcedureAuses a combustion gas pressure apparatus
to produce the required axial compressive force pulse.
1.8 The method used to specify how data are collected,
1.2.2 Procedure B uses a cushioned drop mass apparatus to
calculated or recorded in this standard is not directly related to
produce the required axial compressive force pulse.
the accuracy to which the data can be applied in the design or
1.3 This standard provides minimum requirements for test- other uses, or both. How one uses the results obtained using
ing deep foundations under an axial compressive force pulse. this standard is beyond its scope.
Plans, specifications, provisions (or combinations thereof)
1.9 ASTM International takes no position respecting the
prepared by a qualified engineer, may provide additional
validity of any patent rights asserted in connection with any
requirementsandproceduresasneededtosatisfytheobjectives
item mentioned in this standard. Users of this standard are
of a particular deep foundation test program. The engineer in
expresslyadvisedthatdeterminationofthevalidityofanysuch
responsible charge of the foundation design, referred to herein
patent rights, and the risk of infringement of such rights, are
as the “Engineer,” shall approve any deviations, deletions, or
entirely their own responsibility.
additions to the requirements of this standard.
1.10 This standard may involve hazardous materials,
1.4 The proper conduct and evaluation of force pulse testing
operations, and equipment. This standard does not purport to
requires special knowledge and experience. A qualified engi-
neer should directly supervise the acquisition of field data and address all of the safety concerns, if any, associated with its
use. It is the responsibility of the user of this standard to
the interpretation of the test results so as to predict the actual
performance and adequacy of deep foundations used in the establish appropriate safety and health practices and deter-
constructed foundation. A qualified engineer shall approve the mine the applicability of regulatory limitations prior to use.
apparatus used for applying the force pulse, rigging and
Section 7 provides a partial list of specific hazards and
hoisting equipment, support frames, templates, and test proce-
precautions.
dures.
2. Referenced Documents
1.5 The text of this standard references notes and footnotes
which provide explanatory material. These notes and footnotes 2
2.1 ASTM Standards:
(excluding those in tables and figures) shall not be considered
D653 Terminology Relating to Soil, Rock, and Contained
as requirements of the standard. The word “shall” indicates a
Fluids
1
These test methods are under the jurisdiction ofASTM Committee D18 on Soil
2
and Rock and is the direct responsibility of Subcommittee D18.11 on Deep For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Foundations. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved July 1, 2010. Published August 2010. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 2008 as D7383–08. DOI: 10.1520/D7383-10. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7383 − 10
D1143 Test Method for Piles Under Static Axial Compres- 3.2.3 driven pile, n—a deep foundation unit made of pre-
3
sive Load (Withdrawn 20
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D7383–08 Designation: D7383 – 10
Standard Test Methods for
Axial Compressive Force Pulse (Rapid) Testing of Deep
1
Foundations
This standard is issued under the fixed designation D7383; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 These test methods cover procedures for testing an individual vertical or inclined deep foundation to determine the
displacement response to an axial compressive force pulse applied at its top.These test methods apply to all deep foundation units,
referred to herein as “piles,” that function in a manner similar to driven or cast-in-place piles, regardless of their method of
installation.
1.2 Two alternative procedures are provided:
1.2.1 Procedure A uses a combustion gas pressure apparatus to produce the required axial compressive force pulse.
1.2.2 Procedure B uses a cushioned drop mass apparatus to produce the required axial compressive force pulse.
1.3 This standard provides minimum requirements for testing deep foundations under an axial compressive force pulse. Plans,
specifications, provisions (or combinations thereof) prepared by a qualified engineer, may provide additional requirements and
procedures as needed to satisfy the objectives of a particular deep foundation 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.
1.4 The proper conduct and evaluation of force pulse testing requires special knowledge and experience. A qualified engineer
shoulddirectlysupervisetheacquisitionoffielddataandtheinterpretationofthetestresultssoastopredicttheactualperformance
and adequacy of deep foundations used in the constructed foundation. A qualified engineer shall approve the apparatus used for
applying the force pulse, rigging and hoisting equipment, support frames, templates, and test procedures.
1.5 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.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice
D6026.
1.8 The method used to specify how data are collected, calculated or recorded in this standard is not directly related to the
accuracytowhichthedatacanbeappliedinthedesignorotheruses,orboth.Howoneusestheresultsobtainedusingthisstandard
is beyond its scope.
1.9 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item
mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights,
and the risk of infringement of such rights, are entirely their own responsibility.
1.10 This standard may involve hazardous materials, operations, and equipment. 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. Section 7 provides a partial list
of specific hazards and precautions.
2. Referenced Documents
2
2.1 ASTM Standards:
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D1143 Test Method for Piles Under Static Axial Compressive Load
1
These test methods are under the jurisdiction ofASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.11 on Deep Foundations.
Current edition approved Oct. 1, 2008. Published October 2008. DOI: 10.1520/D7383-08.
Current edition approved July 1, 2010. Published August 2010. Originally approved in 2008 as D7383–08. DOI: 10.1520/D7383-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM S
...
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