1、Designation:D321313Standard Practices forHandling,Storing,and Preparing Soft Intact Marine Soil1This standard is issued under the fixed designation D3213;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 These practices cover methods for project/cruisereporting,and handling,transporting and storing soft cohesiveintact marine soil.Procedures fo
3、r preparing soil specimens fortriaxial strength,and consolidation testing are also presented.1.2 These practices may include the handling and transport-ing of sediment specimens contaminated with hazardous ma-terials and samples subject to quarantine regulations.1.3 The values stated in SI units are
4、 to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.4 These practices offer a set of instructions for performingone or more specific operations.This document cannot replac
5、eeducation or experience and should be used in conjunctionwith professional judgment.Not all aspects of these practicesmay be applicable in all circumstances.This ASTM standard isnot intended to represent or replace the standard of care bywhich the adequacy of a given professional service must bejud
6、ged,nor should this document be applied without consid-eration of a projects many unique aspects.The word“Stan-dard”in the title means only that the document has beenapproved through the ASTM consensus process.1.5 This standard does not purport to address all of thesafety concerns,if any,associated
7、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.Specific precau-tionary statements are given in Sections 1,2 and 7.2.Referenced Documents2.1 ASTM Standards:
8、2D653 Terminology Relating to Soil,Rock,and ContainedFluidsD1587 Practice for Thin-Walled Tube Sampling of Soils forGeotechnical PurposesD2435 Test Methods for One-Dimensional ConsolidationProperties of Soils Using Incremental LoadingD2488 Practice for Description and Identification of Soils(Visual-
9、Manual Procedure)D2850 Test Method for Unconsolidated-Undrained TriaxialCompression Test on Cohesive SoilsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4186 Test Method for One-Dimensional Conso
10、lidationProperties of Saturated Cohesive Soils Using Controlled-Strain LoadingD4220 Practices for Preserving and Transporting SoilSamplesD4452 Practice for X-Ray Radiography of Soil Samples3.Terminology3.1 DefinitionsThe definitions of terms used in thesepractices shall be in accordance with Termino
11、logy D653.4.Summary of Practice4.1 Procedures are presented for handling,transporting,storing,and preparing very soft and soft,fine-grained marinesediment specimens that minimize disturbance to the testspecimen from the time it is initially sampled at sea to the timeit is placed in a testing device
12、in the laboratory.5.Significance and Use5.1 Disturbance imparted to sediments after sampling cansignificantly affect some geotechnical properties.Careful prac-tices need to be followed to minimize soil fabric changescaused from handling,storing,and preparing sediment speci-mens for testing.NOTE1The
13、quality of the result produced by this standard isdependent on the competence of the personnel performing it,and thesuitability of the equipment and facilities used.Agencies that meet thecriteria of Practice D3740 are generally considered capable of competentand objective testing/sampling/inspection
14、,etc.Users of this standard arecautioned that compliance with Practice D3740 does not in itself assurereliable results.Reliable results depend on may factors;Practice D3740provides a means of evaluating some of those factors.5.2 The practices presented in this document should be usedwith soil that h
15、as a very soft or soft shear strength(undrainedshear strength less than 25 kPa(3.6 psi)consistency.1These practices are under the jurisdiction ofASTM Committee D18 on Soil andRock and are the direct responsibility of Subcommittee D18.02 on Sampling andRelated Field Testing for Soil Evaluations.Curre
16、nt edition approved Nov.1,2013.Published December 2013.Originallyapproved in 1991.Last previous edition approved in 2008 as D3213 08.DOI:10.1520/D3213-13.2For 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 Dr
