ASTM_D_6230_-_13.pdf

Designation:D623013Standard Test Method forMonitoring Ground Movement Using Probe-TypeInclinometers1This standard is issued under the fixed designation D6230;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number 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 test method covers the use of inclinometers tomonitor the internal movement of ground.The test methodcovers types of instruments,installation procedures,operatingprocedures,and maintenance requirements.It also providesformulae for data reduction.1.2 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026 unless superseded by this test method.1.2.1 The procedures used to specify how data are collected,recorded or calculated in this test method are regarded as theindustry standard.In addition,they are representative of thesignificant digits that generally should be retained.The proce-dures used do not consider material variation,purpose forobtaining the data,special purpose studies,or any consider-ations for the users objectives;it is common practice toincrease or reduce significant digits of reported data to becommensurate with these considerations.It is beyond the scopeof this test method to consider significant digits used inanalytical methods for engineering design.1.3 The values stated in SI units are to be regarded as thestandard.The inch-pound units given in parentheses are forinformation only.1.4 This standard does not 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 health and safety practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D653 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 ConstructionD6026 Practice for Using Significant Digits in GeotechnicalDataD7299 Practice for Verifying Performance of a VerticalInclinometer Probe3.Terminology3.1 Definitions:3.1.1 For definitions of general terms,see TerminologyD653.3.1.2 Definitions of terms specific to this test method areincluded in Section 5.4.Significance and Use4.1 An inclinometer is a device for measuring deformationnormal to the axis of a pipe by passing a probe along the pipeand measuring the inclination of the probe with respect to theline of gravity.Measurements are converted to distances usingtrigonometric functions.Distances are summed to find theposition of the pipe.Successive measurements give differencesin position of the pipe and indicate deformation normal to theaxis of the pipe.In most cases the pipe is installed in anear-vertical hole.Measurements indicate subsurface horizon-tal deformation.In some cases the pipe is installed horizontallyand the measurements indicate vertical deformation.4.2 Inclinometers are also called slope inclinometers orslope indicators.Typical applications include measuring therate of landslide movement and locating the zone of shearing,monitoring the magnitude and rate of horizontal movementsfor embankments and excavations,monitoring the settlementand lateral spread beneath tanks and embankments,and moni-toring the deflection of bulkheads,piles or structural walls.NOTE1Notwithstanding the statements on precision and bias con-tained in this test method,the precision of this test method is dependent onthe competence of the personnel performing it and the suitability of theequipment and facilities used.Agencies that meet the criteria of PracticeD3740 are generally considered capable of competent and objectivetesting.Users of these test methods are cautioned that compliance withPractice D3740 does not in itself ensure reliable results.Reliable testing1This test method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.23 on Field Instrumen-tation.Current edition approved Jan.15,2013.Published February 2013.Originallyapproved in 1998.Last previous edition approved in 2005 as D6230 98(2005).DOI:10.1520/D6230-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe 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 depends on many factors;Practice D3740 provides a means of evaluatingsome of those factors.5.Apparatus5.1 The probe type inclinometer uses sensors inside a probeto indicate the orientation o