We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
Standard Practice for Extensometers Used in Rock
STANDARD published on 15.8.2012
Designation standards: ASTM D4403-12
Note: WITHDRAWN
Publication date standards: 15.8.2012
SKU: NS-27091
The number of pages: 11
Approximate weight : 33 g (0.07 lbs)
Country: American technical standard
Category: Technical standards ASTM
Earthworks. Excavations. Foundation construction. Underground works
Keywords:
convergence, data analysts, deformation, displacement, extensometers, field testing, installation, monitoring, rock, settlement, tunnels, underground environments, ICS Number Code 93.020 (Earth works. Excavations. Foundation construction. Underground works)
Significance and Use | ||||
4.1 Extensometers are widely used in the field of engineering and include most devices used to measure displacements, separation, settlements, convergence, and the like. 4.2 For tunnel instrumentation, extensometers are generally used to measure roof and sidewall movements and to locate the tension arch zone surrounding the tunnel opening. 4.3 Extensometers are also used extensively as safety monitoring devices in tunnels, in underground cavities, on potentially unstable slopes, and in monitoring the performance of rock support systems. 4.4 An extensometer should be selected on the basis of its intended use, the preciseness of the measurement required, the anticipated range of deformation, and the details accompanying installation. No single instrument is suitable for all applications. 1.1 This practice covers the
description, application, selection, installation, data collecting,
and data reduction of the various types of extensometers used in
the field of rock mechanics.
1.2 Limitations of each type of extensometer system are covered in Section 5. 1.3 The values stated in inch-pound units are to be regarded as the standard. The SI values given in parentheses are provided for information purposes only. 1.4 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.5 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 judgement. Not all aspects of this guide 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. 1.6 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 and health practices and determine the applicability of regulatory limitations prior to use. |
||||
2. Referenced Documents | ||||
|
Historical
15.1.2010
Historical
1.7.2008
Historical
1.7.2008
Historical
1.7.2008
Historical
15.9.2008
Historical
1.1.2013
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
Latest update: 2024-05-19 (Number of items: 2 902 277)
© Copyright 2024 NORMSERVIS s.r.o.