1、Designation:D6067/D6067M17Standard Practice forUsing the Electronic Piezocone Penetrometer Tests forEnvironmental Site Characterization and Estimation ofHydraulic Conductivity1This standard is issued under the fixed designation D6067/D6067M;the number immediately following the designation indicates
2、theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 The electronic cone penetrometer test often is used to
3、determine subsurface stratigraphy for geotechnical and envi-ronmental site characterization purposes(1).2The geotechnicalapplication of the electronic cone penetrometer test is dis-cussed in detail in Test Method D5778,however,the use of theelectronic cone penetrometer test in environmental site cha
4、r-acterization applications involves further considerations thatare not discussed.For environmental site characterization,it ishighly recommended to use the Piezocone(PCPT or CPTu)option in Test Method D5778 so information on hydraulicconductivity and aquifer hydrostatic pressures can be evalu-ated.
5、1.2 The purpose of this practice is to discuss aspects of theelectronic cone penetrometer test that need to be consideredwhen performing tests for environmental site characterizationpurposes.1.3 The electronic cone penetrometer test for environmentalsite characterization projects often requires stea
6、m cleaning thepush rods and grouting the hole.There are numerous ways ofcleaning and grouting depending on the scope of the project,local regulations,and corporate preferences.It is beyond thescope of this practice to discuss all of these methods in detail.A detailed explanation of grouting procedur
7、es is discussed inGuide D6001.1.4 Cone penetrometer tests are often used to locate aquiferzones for installation of wells(Practice D5092/D5092M,Guide D6274).The cone test may be combined with directpush soil sampling for confirming soil types(Guide D6282/D6282M).Direct push hydraulic injection profi
8、ling(PracticeD8037/D8037M)is another complementary test for estimatinghydraulic conductivity and direct push slug tests(D7242/D7242M)and used for confirming estimates.Cone penetrom-eters can be equipped with additional sensors for groundwaterquality evaluations(Practice D6187).Location of other sens
9、orsmust conform to requirements of Test Method D5778.1.5 This practice is applicable only at sites where chemical(organic and inorganic)wastes are a concern and is notintended for use at radioactive or mixed(chemical and radio-active)waste sites due to specialized monitoring requirementsof drilling
10、equipment.1.6 UnitsThe values stated in either SI units or in-lb units(presented 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.Units for conductivity are either m/s or cm
11、/sdepending on the sources cited.1.7 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this standard.1.8 This standard does not purport to address all of thesafety concerns,if any,associated with it
12、s use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.9 This practice offers a set of instructions for performingone or more specific operations.This doc
13、ument cannot replaceeducation or experience and should be used in conjunctionwith professional judgment.Not all aspects of this practice maybe applicable in all circumstances.This ASTM standard is notintended to represent or replace the standard of care by whichthe adequacy of a given professional s
14、ervice must be judged,nor should this document be applied without consideration ofa projects many unique aspects.The word Standard in thetitle means only that the document has been approved throughthe ASTM consensus process.1.10 This international standard was developed in accor-dance with internati
15、onally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.1This practice is under the jurisdiction of ASTM Commit
16、tee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.21 on Groundwater andVadose Zone Investigations.Current edition approved Dec.15,2017.Published February 2018.Originallyapproved in 1996.Last previous edition approved in 2010 as D606710.DOI:10.1520/D6067_D6067M-17.2The boldface numbers in parentheses refer to the list of references at the end ofthis guide.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,