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ASTM D6230-98(2005)

Current Reaffirmation

Standard Practices for Monitoring Earth or Structural Movement Using Inclinometers

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1.1 This test method covers the use of inclinometers to monitor the internal movement of ground. The test method covers types of instruments, installation procedures, operating procedures and maintenance requirements. It also provides formulae for data reduction.

1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are for information only.

1.3 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 health and safety practices and determine the applicability of regulatory limitations prior to use.


An inclinometer is a device for measuring deformation normal to the axis of a pipe by passing a probe along the pipe and measuring the inclination of the probe with respect to the line of gravity. Measurements are converted to distances using trigonometric functions. Distances are summed to find the position of the pipe. Successive measurements give differences in position of the pipe and indicate deformation normal to the axis of the pipe. In most cases the pipe is installed in a near-vertical hole. Measurements indicate subsurface horizontal deformation. In some cases the pipe is installed horizontally and the measurements indicate vertical deformation.

Inclinometers are also called slope inclinometers or slope indicators. Typical applications include measuring the rate of landslide movement and locating the zone of shearing, monitoring the magnitude and rate of horizontal movements for embankments and excavations, monitoring the settlement and lateral spread beneath tanks and embankments, and monitoring the deflection of bulkheads, piles or structural walls.

SDO ASTM: ASTM International
Document Number D6230
Publication Date Nov. 1, 2005
Language en - English
Page Count 6
Revision Level 98(2005)
Supercedes
Committee D18.23
Publish Date Document Id Type View
June 1, 2021 D6230-21E01 Revision
June 1, 2021 D6230-21 Revision
Jan. 15, 2013 D6230-13 Revision
Feb. 10, 1998 D6230-98 Revision
Nov. 1, 2005 D6230-98R05 Reaffirmation