1、Designation:D3550/D3550M17Standard Practice forThick Wall,Ring-Lined,Split Barrel,Drive Sampling ofSoils1This standard is issued under the fixed designation D3550/D3550M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of las
2、t revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This practice covers procedure for thick
3、 wall,split barreldrive sampling of soil to obtain representative samples of soilfor classification and laboratory testing.The sampler is con-sidered to be a thick wall sampler with sharpened cutting shoeand ball check vent.The middle barrel section is split barreldesign containing ring liners.The s
4、ampler is often driven,butcan also be pushed in softer deposits.Penetration resistancedata may be recorded.This standard uses procedures similar toTest Method D1586 on Penetration Resistance and Split BarrelSampling of Soils.However,in this practice,differing hammerweights,drop heights,and different
5、 size samplers are used,sothe data must not be reported as conforming to Test MethodD1586 and cannot be used to determine Normalized penetra-tion resistance data for sands in accordance with PracticeD6066.1.2 This practice involves use of rotary drilling equipment(Guide D5783,Practice D6151).Other d
6、rilling and samplingprocedures(Guide D6286,Guide D6169)are available andmay be more appropriate.Considerations for hand driving orshallow sampling without boreholes are not addressed.Sub-surface explorations should be recorded in accordance withGuide D5434.Soil samples should be classified in accord
7、ancewith Practice D2488.1.3 The soil samples from this test will have some degree ofdisturbance because the sampler is a driven thick walledsample tube.Table 2 of Guide D6169 on Soil and RockSampling provides guidance for selection of soil samplers forsamples that may require intact samples defined
8、by Terminol-ogy D653 for laboratory testing.The degree of disturbancemust be evaluated by the user(engineer)to determine thesuitability of the sample for use in laboratory tests.If samplesare not suitable for laboratory testing,other soil samplersshould be used(see 4.4.1).1.4 The values stated in ei
9、ther inch-pound units or SI unitspresented in brackets are to be regarded separately asstandard.The values stated in each system may not be exactequivalents;therefore,each system shall be used independentlyof the other.Combining values from the two systems mayresult in non-conformance with the stand
10、ard1.5 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this standard.1.6 This practice offers an organized collection of informa-tion or a series of options and does not recommend a specificcourse
11、 of action.This document cannot replace education orexperience and should be used in conjunction with professionaljudgement.Not all aspects of this practice may be applicable inall circumstances.This ASTM standard is not intended torepresent or replace the standard of care by which theadequacy of a
12、given professional service must be judged,norshould this document be applied without consideration of aprojects many unique aspects.The word“Standard”in thetitle of this document means only that the document has beenapproved through the ASTM consensus process.1.6.1 This practice does not purport to
13、comprehensivelyaddress all of the methods and the issues associated with soilsampling.Users should seek qualified professionals for thedecisions as to the proper equipment and methods that wouldbe most successful for their site exploration.Other methodsmay be available for monitoring soil sampling a
14、nd qualifiedprofessionals should have flexibility to exercise judgement asto possible alternatives not covered in this practice.1.7 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 app
15、ro-priate safety and health practices.The user must comply withprevalent regulatory codes,such as OSHA(OccupationalHealth and Safety Administration)guidelines while using this1This practice is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommitt
16、ee D18.02 on Sampling andRelated Field Testing for Soil Evaluations.Current edition approved April 1,2017.Published April 2017.Originallyapproved in 1977.Last previous edition approved in 2007 as D3550 01(2007),which was withdrawn January 2016 and reinstated in April 2017.DOI:10.1520/D3550_D3550M-17.*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 StatesThis international standar
