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These classification systems may also be of use in work on rippability of rock, quality of construction materials, and erosion resistance. Although widely used classification systems are treated in this standard, systems not included here may be more appropriate in some situations, and may be added to subsequent editions of this standard.
Further, the person or persons using this standard shall have had field experience in studying rock-mass behavior. An appropriate reference for geotechnical mapping of large underground openings in rock is provided by Guide D It does not include detailed guidance for application to all engineering purposes for which a particular system might be validly used.
Detailed descriptions of the first five systems are presented in STP 1 , 2 with abundant references to source literature. Details of two other classification systems and a listing of seven Japanese systems are also presented.
This standard summarizes the major fields of application up to this time of each of the seven classification systems.
The values given in parentheses are mathematical conversions to inch-pounds units that are provided for information only and are not considered standard. 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. This document cannot replace education ore experience and shall be used in conjunction with professional judgement.
Not all aspects of this standard 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 shall this document be applied without consideration of a project's many unique aspects. ASTM D Status :. Em Vigor. Idioma :. Organismo :. Objetivo :.
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