ASTM D4428/D4428M-14
(Test Method)Standard Test Methods for Crosshole Seismic Testing (Withdrawn 2023)
Standard Test Methods for Crosshole Seismic Testing (Withdrawn 2023)
SIGNIFICANCE AND USE
5.1 The seismic crosshole method provides a designer with information pertinent to the seismic wave velocities of the materials in question (1).2 This data may be used as follows:
5.1.1 For input into static/dynamic analyses;
5.1.2 For computing shear modulus, Young's modulus, and Poisson's ratio (provided density is known or assumed);
5.1.3 For determining Seismic Site Class using the appropriate Building Code; and
5.1.4 For assessing liquefaction potential.
5.2 Fundamental assumptions inherent in the test methods are as follows:
5.2.1 Horizontal layering is assumed.
5.2.2 Snell’s law of refraction applies to P-waves and S-waves and to the velocities derived from crosshole tests. If Snell’s law of refraction is not considered in the analysis of Crosshole seismic testing data, the report shall so state, and the P-wave and S-wave velocities obtained may be unreliable for certain depth intervals near changes in stratigraphy (2). Note 1—The quality of the results produced by these test methods is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection and so forth. Users of these test methods are cautioned that compliance with Practice D3740 does not in itself assure reliable results. Reliable results depend on many factors; Practice D3740 provides a means of evaluating some of those factors.
SCOPE
1.1 These test methods are limited to the determination of the velocity of two types of horizontally travelling seismic waves in soil materials; primary compression (P-wave) and secondary shear (S-wave) waves. The standard assumes that the method used to analyze the data obtained is based on first arrival times or interval arrival times over a measured distance.
1.2 Acceptable interpretation procedures and equipment, such as seismic sources, receivers, and recording systems are discussed. Other items addressed include borehole spacing, drilling, casing, grouting, deviation surveys, and actual test procedures.
1.3 These test methods are primarily concerned with the actual test procedure, data interpretation, and specifications for equipment which will yield uniform test results.
1.4 All recorded and calculated values shall conform to the guide for significant digits and rounding established in Practice D6026.
1.4.1 The procedures used to specify how data are collected/recorded and calculated in these test methods are regarded as the industry standard. The procedures used do not consider material variation, purpose for obtaining the data, special purpose studies, or any considerations for the user’s objectives. Measurements made to more significant digits or better sensitivity than specified in these test methods shall not be regarded a nonconformance with this standard.
1.5 Units—The values stated in either SI units or inch-pound units [presented in brackets] are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Reporting of test results in units other than SI shall not be regarded as nonconformance with this test method.
1.6 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.
WITHDRAWN RATIONALE
These test methods are limited to the determination of the velocity of two types of horizontally travelling seismic waves in soil materials; primary compression (P-wave) and secondary shear (S-wave) waves. The standard assumes that the method used t...
General Information
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D4428/D4428M − 14
Standard Test Methods for
1
Crosshole Seismic Testing
This standard is issued under the fixed designation D4428/D4428M; 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* test results in units other than SI shall not be regarded as
nonconformance with this test method.
1.1 These test methods are limited to the determination of
1.6 This standard does not purport to address all of the
the velocity of two types of horizontally travelling seismic
safety concerns, if any, associated with its use. It is the
waves in soil materials; primary compression (P-wave) and
responsibility of the user of this standard to establish appro-
secondary shear (S-wave) waves. The standard assumes that
priate safety and health practices and determine the applica-
the method used to analyze the data obtained is based on first
bility of regulatory limitations prior to use.
arrival times or interval arrival times over a measured distance.
1.2 Acceptable interpretation procedures and equipment,
2. Referenced Documents
such as seismic sources, receivers, and recording systems are
2.1 ASTM Standards:
discussed. Other items addressed include borehole spacing,
D653 Terminology Relating to Soil, Rock, and Contained
drilling, casing, grouting, deviation surveys, and actual test
Fluids
procedures.
D3740 Practice for Minimum Requirements for Agencies
1.3 These test methods are primarily concerned with the
Engaged in Testing and/or Inspection of Soil and Rock as
actual test procedure, data interpretation, and specifications for
Used in Engineering Design and Construction
equipment which will yield uniform test results.
D6026 Practice for Using Significant Digits in Geotechnical
1.4 All recorded and calculated values shall conform to the
Data
guide for significant digits and rounding established in Practice
D6026. 3. Terminology
1.4.1 Theproceduresusedtospecifyhowdataarecollected/
3.1 Definitions:
recorded and calculated in these test methods are regarded as
3.1.1 For definitions of common technical terms in this
the industry standard. The procedures used do not consider
standard, refer to Terminology D653.
material variation, purpose for obtaining the data, special
3.2 Definitions of Terms Specific to This Standard:
purpose studies, or any considerations for the user’s objectives.
3.2.1 seismic wave train—the recorded motion of a seismic
Measurements made to more significant digits or better sensi-
disturbance with time.
tivity than specified in these test methods shall not be regarded
a nonconformance with this standard.
4. Summary of Test Method
1.5 Units—The values stated in either SI units or inch-
4.1 The Crosshole Seismic Test makes direct measurements
pound units [presented in brackets] are to be regarded sepa-
of P-wave velocities, or S-wave velocities, in boreholes ad-
rately as standard.The values stated in each system may not be
vanced primarily through soil. At selected depths down the
exact equivalents; therefore, each system shall be used inde-
borehole, a borehole seismic source is used to generate a
pendentlyoftheother.Combiningvaluesfromthetwosystems
seismic wave train. Downhole receivers are used to detect the
may result in non-conformance with the standard. Reporting of
arrival of the seismic wave train in offset borings at a
recommended spacing of 3 to 6 m [10 to 20 ft]. The distance
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between boreholes at the test depths is measured using a
These test methods are under the jurisdiction ofASTM Committee D18 on Soil
and Rock and are the direct responsibility of Subcommittee D18.09 on Cyclic and
borehole deviation survey. The borehole seismic source is
Dynamic Properties of Soils.
connected to and triggers a data recording system that records
Current edition approved March 1, 2014. Published April 2014. Originally
the response of the downhole receivers, thus measuring the
approved in 1984. Last previous edition approved in 2007 as D4428/D4428M – 07.
travel time of the wave train between the source and receivers.
DOI: 10.1520/D4428_D4428M-14.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D4428/D4428M − 14
The P-wave or S-wave velocity is calculated from the mea- 6. Apparatus
sured distance and travel time for the respective wave train.
6.1 The basic data acquisition system consists of the fol-
lowing:
5. Significance and Use
6.1.1 Energy Sources—The source shall be rich in the type
5.1 The seismic cr
...
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