1、Designation:D729912Standard Practice forVerifying Performance of a Vertical Inclinometer Probe1This standard is issued under the fixed designation D7299;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A numb
2、er in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This practice describes three function tests that togethercan be used to verify that a vertical inclinometer probe isworking properly.1.2 This
3、 practice does not address calibration routines,electronic diagnostics,or repair of the probe,nor does itaddress inspection of the probes mechanical parts.1.3 This practice is not intended to replace manufacturersrecommendations for servicing and calibration of inclinometerequipment,nor is it intend
4、ed to replace maintenance andcalibration schedules established by users as part of theirquality programs.1.4 UnitsThe values stated in SI units are to be regardedas standard.No other units of measurement are included in thisstandard.1.5 This practice offers a set of instructions for performingone or
5、 more specific operations.This document cannot replaceeducation or experience and should be used in conjunctionwith professional judgment.Not all aspects of this practice maybe applicable in all circumstances.This ASTM standard is notintended to represent or replace the standard of care by whichthe
6、adequacy of a given professional service must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word“standard”in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.1.6 This standard does no
7、t purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D
8、653 Terminology Relating to Soil,Rock,and ContainedFluidsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and Construction3.Terminology3.1 For definitions of terms used in this practice,refer toTerminology D653.3.2
9、 Definitions of Terms Specific to This Standard:3.2.1 inclinometer casing,nA special-purpose pipe,typi-cally installed in boreholes,with internal guide grooves thatcontrol the orientation of the inclinometer probe and thatprovide a flat surface for repeatable tilt measurements.3.2.2 survey,nA set of
10、 readings obtained with the incli-nometer probe and readout.3.2.3 vertical inclinometer probe,nA wheeled deviceused to measure the tilt of inclinometer casing that is installedin a vertical borehole.The wheels of the device track thegrooves of the inclinometer casing and also keep the body ofthe pro
11、be centralized within the casing.Typically there are twosensors inside the device,each capable of reporting positiveand negative values.One sensor measures tilt in the plane ofthe wheels and is commonly known as the A-axis sensor.Theother sensor measures tilt in the plane normal to the wheels andis
12、commonly known as the B-axis sensor.3.2.4 zero offset,nNon-zero values reported by the A-axisand B-axis sensors when the probe is held precisely vertical.4.Significance and Use4.1 Inclinometer monitoring programs often run severalyears or more.During this time,hundreds of surveys can becollected.Eac
13、h new survey is processed by comparing it to abaseline survey.1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.23 on Field Instrumen-tation.Current edition approved July 1,2012.Published September 2012.Originallyappro
14、ved in 2006.Last previous edition approved in 2006 as D7299 06.DOI:10.1520/D7299-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandardsvolume information,refer to the standards Document Summary page on
15、the ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2 Over a period of years,normal wear and tear cangradually degrade the probes ability to produce new surve
16、ysthat are directly comparable to the baseline survey.This maygo unnoticed for some time,because the quality of readingsmay degrade in very small increments.4.3 When function tests are incorporated into an inclinom-eter monitoring program,the degradation of reading qualitycan be avoided.Probes that pass the tests can be used withconfidence.Probes that fail the tests should be returned to theprobe manufacturer for servicing.It should be noted thatmanufacturers calibrate inclinometer probes using