ASTM D7299-20
(Practice)Standard Practice for Verifying Performance of a Vertical Inclinometer Probe
Standard Practice for Verifying Performance of a Vertical Inclinometer Probe
SIGNIFICANCE AND USE
4.1 Inclinometer monitoring programs often run several years or more. During this time, hundreds of surveys can be collected. Each new survey is processed by comparing it to a baseline survey.
4.2 Over a period of years, normal wear and tear can gradually degrade the probe’s ability to produce new surveys that are directly comparable to the baseline survey. This may go unnoticed for some time, because the quality of readings may degrade in very small increments.
4.3 When function tests are incorporated into an inclinometer monitoring program, the degradation of reading quality can be avoided. Probes that pass the tests can be used with confidence. Probes that fail the tests shall be returned to the probe manufacturer for servicing. It shall be noted that manufacturers calibrate inclinometer probes using high-precision, electronically-controlled equipment in temperature-controlled environments. Ordinary users do not have access to such equipment, so the pass/fail criteria suggested for these tests accommodate typical results produced by less precise equipment in a less controlled environment.
Note 1: The quality of the result produced by this standard is dependent on the competence of the personnel performing it and the suitability of the equipment and facilities used. Agencies that meet the criteria of Practice D3740 are generally considered capable of competent and objective testing/sampling/inspection/etc. Users of this standard 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 This practice describes three function tests that together can be used to verify that a vertical traversing inclinometer probe is working properly.
1.2 This practice does not address calibration routines, electronic diagnostics, or repair of the probe, nor does it address inspection of the probe’s mechanical parts.
1.3 This practice is not intended to replace manufacturers’ recommendations for servicing and calibration of inclinometer equipment, nor is it intended to replace maintenance and calibration schedules established by users as part of their quality programs.
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice D6026.
1.6 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s many unique aspects. The word “standard” in the title of this document means only that the document has been approved through the ASTM consensus process.
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D7299 − 20
Standard Practice for
1
Verifying Performance of a Vertical Inclinometer Probe
This standard is issued under the fixed designation D7299; 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* ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
1.1 This practice describes three function tests that together
mendations issued by the World Trade Organization Technical
can be used to verify that a vertical traversing inclinometer
Barriers to Trade (TBT) Committee.
probe is working properly.
2. Referenced Documents
1.2 This practice does not address calibration routines,
2
electronic diagnostics, or repair of the probe, nor does it
2.1 ASTM Standards:
address inspection of the probe’s mechanical parts.
D653 Terminology Relating to Soil, Rock, and Contained
Fluids
1.3 This practice is not intended to replace manufacturers’
D3740 Practice for Minimum Requirements for Agencies
recommendations for servicing and calibration of inclinometer
Engaged in Testing and/or Inspection of Soil and Rock as
equipment, nor is it intended to replace maintenance and
Used in Engineering Design and Construction
calibration schedules established by users as part of their
D6026 Practice for Using Significant Digits in Geotechnical
quality programs.
Data
1.4 Units—The values stated in SI units are to be regarded
as standard. No other units of measurement are included in this
3. Terminology
standard.
3.1 For definitions of common technical terms used in this
1.5 All observed and calculated values shall conform to the
standard, refer to Terminology D653.
guidelines for significant digits and rounding established in
3.2 Definitions of Terms Specific to This Standard:
Practice D6026.
3.2.1 inclinometer casing, n—a special-purpose pipe, typi-
1.6 This practice offers a set of instructions for performing
cally installed in boreholes, with internal guide grooves that
one or more specific operations. This document cannot replace
control the orientation of the inclinometer probe and that
education or experience and should be used in conjunction
provide a flat surface for repeatable tilt measurements.
with professional judgment. Not all aspects of this practice may
3.2.2 inclinometer survey, n—a set of readings obtained
be applicable in all circumstances. This ASTM standard is not
with the inclinometer probe and readout.
intended to represent or replace the standard of care by which
3.2.3 vertical inclinometer probe, n—an instrument com-
the adequacy of a given professional service must be judged,
prised of a downhole probe which uses internal sensors to
nor should this document be applied without consideration of
detect its own orientation relative to the force of gravity, with
a project’s many unique aspects. The word “standard” in the
a wheel assembly for lowering into the inclinometer casing
title of this document means only that the document has been
along the alignment grooves, connected by a cable to a readout
approved through the ASTM consensus process.
or datalogger at the surface.
1.7 This standard does not purport to address all of the
3.2.4 zero offset, n—non-zero values reported by the A-axis
safety concerns, if any, associated with its use. It is the
and B-axis sensors when the probe is held precisely vertical.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
4.1 Inclinometer monitoring programs often run several
1.8 This international standard was developed in accor-
years or more. During this time, hundreds of surveys can be
dance with internationally recognized principles on standard-
collected. Each new survey is processed by comparing it to a
baseline survey.
1
This practice is under the jurisdiction of ASTM Committee D18 on Soil and
Rock and is the direct responsibility of Subcommittee D18.23 on Field Instrumen-
2
tation. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2020. Published November 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2006. Last previous edition approved in 2012 as D7299 – 12. DOI: Standardsvolume information, refer to the standard’s Document Summary page on
10.1520/D7299-20. the ASTM web
...
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: D7299 − 12 D7299 − 20
Standard Practice for
1
Verifying Performance of a Vertical Inclinometer Probe
This standard is issued under the fixed designation D7299; 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 This practice describes three function tests that together can be used to verify that a vertical traversing inclinometer probe is
working properly.
1.2 This practice does not address calibration routines, electronic diagnostics, or repair of the probe, nor does it address inspection
of the probe’s mechanical parts.
1.3 This practice is not intended to replace manufacturers’ recommendations for servicing and calibration of inclinometer
equipment, nor is it intended to replace maintenance and calibration schedules established by users as part of their quality
programs.
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.5 All observed and calculated values shall conform to the guidelines for significant digits and rounding established in Practice
D6026.
1.6 This practice offers a set of instructions for performing one or more specific operations. This document cannot replace
education or experience and should be used in conjunction with professional judgment. Not all aspects of this practice may be
applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the
adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project’s
many unique aspects. The word “standard” in the title of this document means only that the document has been approved through
the ASTM consensus process.
1.7 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.8 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
1
This practice is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.23 on Field Instrumentation.
Current edition approved July 1, 2012Nov. 1, 2020. Published September 2012November 2020. Originally approved in 2006. Last previous edition approved in 20062012
as D7299 – 06.12. DOI: 10.1520/D7299-12.10.1520/D7299-20.
*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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D7299 − 20
2. Referenced Documents
2
2.1 ASTM Standards:
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in
Engineering Design and Construction
D6026 Practice for Using Significant Digits in Geotechnical Data
3. Terminology
3.1 For definitions of common technical terms used in this practice,standard, refer to Terminology D653.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 inclinometer casing, n—Aa special-purpose pipe, typically installed in boreholes, with internal guide grooves that control
the orientation of the inclinometer probe and that provide a flat surface for repeatable tilt measurements.
3.2.2 inclinometer survey, n—Aa set of readings obtained with the inclinometer probe and readout.
3.2.3 vertical inclinometer probe, n—A wheeled device used to measure the tilt of inclinometer casing that is installed in a vertical
borehole. The wheels of the device track the grooves of the inclinometer casing and also keep the body of the probe centralized
within the casing. Typically there are two sensors inside the device, each capable of reporting positive and negative values. One
sensor measures tilt in the plane of the wheels and is commonly known a
...
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