ASTM_D_1586_-_11.pdf

Designation:D158611Standard Test Method forStandard Penetration Test(SPT)and Split-Barrel Samplingof Soils1This standard is issued under the fixed designation D1586;the number immediately following the designation indicates the year oforiginal 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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This test method describes the procedure,generallyknown as the Standard Penetration Test(SPT),for driving asplit-barrel sampler to obtain a representative disturbed soilsample for identification purposes,and measure the resistanceof the soil to penetration of the sampler.Another method(TestMethod D3550)to drive a split-barrel sampler to obtain arepresentative soil sample is available but the hammer energyis not standardized.1.2 Practice D6066 gives a guide to determining the nor-malized penetration resistance of sands for energy adjustmentsof N-value to a constant energy level for evaluating liquefac-tion potential.1.3 Test results and identification information are used toestimate subsurface conditions for foundation design.1.4 Penetration resistance testing is typically performed at5-ft depth intervals or when a significant change of materials isobserved during drilling,unless otherwise specified.1.5 This test method is limited to use in nonlithified soilsand soils whose maximum particle size is approximately lessthan one-half of the sampler diameter.1.6 This test method involves use of rotary drilling equip-ment(Guide D5783,Practice D6151).Other drilling andsampling procedures(Guide D6286,Guide D6169)are avail-able and may be more appropriate.Considerations for handdriving or shallow sampling without boreholes are not ad-dressed.Subsurface investigations should be recorded in ac-cordance with Practice D5434.Samples should be preservedand transported in accordance with Practice D4220 usingGroup B.Soil samples should be identified by group name andsymbol in accordance with Practice D2488.1.7 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this test method.1.8 The values stated in inch-pound units are to be regardedas standard,except as noted below.The values given inparentheses are mathematical conversions to SI units,whichare provided for information only and are not consideredstandard.1.8.1 The gravitational system of inch-pound units is usedwhen dealing with inch-pound units.In this system,the pound(lbf)represents a unit of force(weight),while the unit for massis slugs.1.9 Penetration resistance measurements often will involvesafety planning,administration,and documentation.This testmethod does not purport to address all aspects of explorationand site safety.This standard does not purport to address all ofthe safety concerns,if any,associated 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.Performance of thetest usually involves use of a drill rig;therefore,safetyrequirements as outlined in applicable safety standards(forexample,OSHA regulations,2NDA Drilling Safety Guide,3drilling safety manuals,and other applicable state and localregulations)must be observed.2.Referenced Documents2.1 ASTM Standards:4D653 Terminology Relating to Soil,Rock,and ContainedFluidsD854 Test Methods for Specific Gravity of Soil Solids byWater Pycnometer1This method is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.02 on Sampling andRelated Field Testing for Soil Evaluations.Current edition approved Nov.1,2011.Published December 2011.Originallyapproved in 1958.Last previous edition approved in 2008 as D1586 08a.DOI:10.1520/D1586-11.2Available from Occupational Safety and Health Administration(OSHA),200Constitution Ave.,NW,Washington,DC 20210,http:/www.osha.gov.3Available from the National Drilling Association,3511 Center Rd.,Suite 8,Brunswick,OH 44212,http:/.4For 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 Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 D1587 Practice for Thin-Walled Tube Sampling of Soils forGeotechnical PurposesD2216 Test Methods for Laboratory Determination of Water(Moisture)Content of Soil and Rock by MassD2487 Practice for Classification of Soils for EngineeringPurposes(Unified Soil Classification System)D2488 Practice for Description and Identifi