ASTM D4633-86
(Test Method)Test Method For Stress Wave Energy Measurment For Dynamic Penetrometer Testing Systems (Withdrawn 1995)
Test Method For Stress Wave Energy Measurment For Dynamic Penetrometer Testing Systems (Withdrawn 1995)
SCOPE
1.1 This test method describes the procedure for measuring that part of the drive weight (hammer) kinetic energy that enters the penetrometer connector rod column during dynamic (hammer impact) penetrometer testing of soil.
1.2 This test method has particular application to the comparative evaluation of hammer systems, and, to a lesser degree of accuracy, hammer-operator systems, that are used for the penetration testing of soils.
1.3 This test method applies to penetrometers driven from above the ground surface. It is not intended for use with down-hole hammers.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are provided for information only.
1.5 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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.
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Standards Content (Sample)
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~~ OeslgnaHon: 0 4633 - 86
AMERICAN SOCIETY FOR TESTING AND MATERIALS
1916 Race St. Philadelphia. Pa. 19103
Reprinted Irom the Annual Book 01 ASTM Siandards •. Copyrlghl AST~
1/ nol listed In Ihe currenl combined Index. Will appear In the next edilion.
Standard Test Method for
STRESS WAVE ENERGY MEASUREMENT FOR DYNAMIC
1
PENETROMETER TESTING SYSTEMS
This standard is issued under the fixed designation 04633; 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 ep5i1on (.) indicates an editorial change since the last revision or reapproval.
l.Scope
penetrometer connector rods for the purpose of
sensing that part of the drive weight (hammer)
1.1 This test method describes the procedure
kinetic energy that is transmitted into the pene
for measuring that part of the drive weight (ham
trometer connector rods.
mer) kinetic energy that enters the penetrometer
connector rod column during dynamic (hammer NOlll I-Some hammer energy is lost at impact
during the transfer of kinetic energy in the hammer to
impact) penetrometer testing of soil.
compression wave energy in the penetrometer connec
1.2 This test method has particular applica
tor rods. This impact-transfer loss can vary significantly
tion to the comparative evaluation of hammer
with the shape of the hammer or the anvil, or both.
systems, and, to a lesser degree of accuracy, ham
with the mass of the anvil. and with the properties of
any impact cushion at the anvil.
mer-operator systems, that are used for the pen
etration testing of soils.
2.1.4 penetrometer~any sampler, cone.
1.3 This test method applies to penetrometers
blade, or other instrument placed at the bottom
driven from above the ground surface. It is not
of the connector rods where the penetration re
intended for use with down-hole hammers.
sistance in (hammer blows/penetration distance)
1.4 The values stated in inch-pound units are
is used as an index to one or more soil engineer
to be regarded as the standard. The values in
ing properties.
parentheses are provided for information only.
2.1.5 processing instrument-an instrument
I.S This standard may involve hazardous ma
which receives the signal from the load cell after
terials, operations, and equipment. This standard
a hammer blow and processes it to produce com
does not purport to address all of the safety prob
puted E/ or ER/ values (see 2.2.2 and 2.2.3).
lems associated with its use. It is the responsibil
2.1.6 string-cllt drop-supporting a hammer
ity of the IIser of this standard to establish appro
on a string at a stipulated distance above the
priate safety and health practices and determine
anvil and cutting the string to obtain an un
the applicability ofregu{atory limitations prior to
impeded hammer drop.
use.
2.2 Symbols:
2.2.1 E·-the nominal kinetic energy in a
2. Terminology
drive weight of stipulated mass after a gravita
tional free fall from a stipulated fall height (the
2.1 Descriptions of Terms Specific to This
Standard: Newtonian kinetic energy at impact).
2.2.2 Er-the energy content of the initial
2.1.1 connector rods-the drill rods that con
(first) compression wave that is produced by a
nect the drive weight system above the ground
hammer impact.
surface to the penetrometer below the surface.
2.1.2 engineer-the engineer, geologist, or
I This test method is under the jurisdiction of ASTM Com
or their represent
other responsible professional,
mittee 0-18 on Soil and Rock and is the direct responsibility of
ative.
Subcommittee D18.02 on Sampling and Related Field Testing
for Soil Investigations.
2.1.3 load cell-any instrument placed
Current edition approved Oct. 31. 1986. Published December
around, on, or Within a continuous column of
1986.
~OprRIGHT ASTM International
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04633
2.2.3 ERI = (E;/E*) 100 %-measured stress reproduce environmental influences must be
considered.
wave energy ratio.
2.2.4 L-length between the hammer impact 3.5 This test method has been found useful
surface and the bottom of the penetrometer. for such purposes as:
2.2.5 L'-length between the load cell and 3.5.1 Comparing the dynamic penetration re
the bottom of the penetrometer. sistances produced by different equipment or
2.2.6 AL = L - L'. operators performing the same type of test at a
project.
3, Significance and Use
3.5.2 Comparing project penetration resist
3.1 Various types of driven penetrometers are ance with similar design reference data.
used to evaluate in situ the engineering behavior 3.5.3 An organization performing internal
of soils. The penetration resistance of soil to a evaluations of their hammer-operator-rig com-
particular driven penetrometer depends not only binatio
...
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