1、Designation:D578218Standard Guide forUse of Direct Air-Rotary Drilling for GeoenvironmentalExploration and the Installation of Subsurface Water-QualityMonitoring Devices1This standard is issued under the fixed designation D5782;the number immediately following the designation indicates the year ofor
2、iginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This guide covers how direct(straight)air-rotary drill-ing procedur
3、es may be used for geoenvironmental explorationand installation of subsurface water-quality monitoring de-vices.NOTE1The term direct with respect to the air-rotary drilling methodof this guide indicates that compressed air is injected through a drill-rodcolumn to a rotating bit.The air cools the bit
4、 and transports cuttings to thesurface in the annulus between the drill-rod column and the borehole wall.NOTE2This guide does not include considerations for geotechnicalsite characterizations that are addressed in a separate guide.1.2 Direct air-rotary drilling for geoenvironmental explora-tion will
5、 often involve safety planning,administration,anddocumentation.This guide does not purport to specificallyaddress exploration and site safety.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.4 This standard does not purport to
6、address all of thesafety concerns,if any,associated with its 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.1.5 All observed and calculated values are
7、 to conform to theguidelines for significant digits and rounding established inPractice D6026.The procedures used to specify how data arecollected/recorded or calculated in this standard are regarded asthe industry standard.In addition,they are representative of thesignificant digits that generally
8、should be retained.The proce-dures used do not consider material variation,purpose forobtaining the data,special purpose studies,or any consider-ations for the users objective;and it is common practice toincrease or reduce the significant digits of reported data to becommensurate with these consider
9、ations.It is beyond the scopeof this standard to consider significant digits used in analysismethod or engineering design.1.6 This guide offers an organized collection of informationor a series of options and does not recommend a specificcourse of action.This document cannot replace education orexpe
10、rience and should be used in conjunction with professionaljudgment.Not all aspects of this guide may be applicable in allcircumstances.This ASTM standard is not intended to repre-sent or replace the standard of care by which the adequacy ofa given professional service must be judged,nor should thisd
11、ocument be applied without consideration of a projects manyunique aspects.The word“Standard”in the title of thisdocument means only that the document has been approvedthrough the ASTM consensus process.1.7 This international standard was developed in accor-dance with internationally recognized princ
12、iples 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.2.Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil,Ro
13、ck,and ContainedFluidsD1452 Practice for Soil Exploration and Sampling by AugerBoringsD1586 Test Method for Standard Penetration Test(SPT)andSplit-Barrel Sampling of SoilsD1587 Practice for Thin-Walled Tube Sampling of Fine-Grained Soils for Geotechnical PurposesD2113 Practice for Rock Core Drilling
14、 and Sampling ofRock for Site ExplorationD3550 Practice for Thick Wall,Ring-Lined,Split Barrel,Drive Sampling of Soils1This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rockand is the direct responsibility of Subcommittee D18.21 on Groundwater andVadose Zone Investigations.Curren
15、t edition approved Jan.1,2018.Published February 2018.Originallyapproved in 1995.Last previous edition approved in 2012 as D5782 95(2012).DOI:10.1520/D5782-18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTM
16、Standards 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 Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations i