1、Designation:D3689/D3689M07(Reapproved 2013)1Standard Test Methods forDeep Foundations Under Static Axial Tensile Load1This standard is issued under the fixed designation D3689/D3689M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,th
2、e 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.1NOTEDesignation was editorially corrected to match units information in June 2013.1.Scope1.1 The test methods described in
3、this standard measure theaxial deflection of a vertical or inclined deep foundation whenloaded in static axial tension.These methods apply to all deepfoundations,referred to herein as“piles,”that function in amanner similar to driven piles or cast in place piles,regardlessof their method of installa
4、tion,and may be used for testingsingle piles or pile groups.The test results may not representthe long-term performance of a deep foundation.1.2 This standard provides minimum requirements for test-ing deep foundations under static axial tensile load.Plans,specifications,provisions,or any combinatio
5、n thereof preparedby a qualified engineer may provide additional requirementsand procedures as needed to satisfy the objectives of aparticular test program.The engineer in responsible charge ofthe foundation design,referred to herein as the engineer,shallapprove any deviations,deletions,or additions
6、 to the require-ments of this standard.1.3 This standard allows the following test procedures:ProcedureTestSectionAQuick Test8.1.2BMaintained Test(optional)8.1.3CLoading in Excess of Maintained Test(optional)8.1.4DConstant Time Interval Test(optional)8.1.5EConstant Rate of Uplift Test(optional)8.1.6
7、FCyclic Loading Test(optional)8.1.71.4 Apparatus and procedures herein designated“optional”may produce different test results and may be used only whenapproved by the engineer.The word“shall”indicates amandatory provision,and the word“should”indicates arecommended or advisory provision.Imperative se
8、ntencesindicate mandatory provisions.1.5 A qualified geotechnical engineer should interpret thetest results obtained from the procedures of this standard so asto predict the actual performance and adequacy of piles used inthe constructed foundation.See Appendix X1 for commentsregarding some of the f
9、actors influencing the interpretation oftest results.1.6 A qualified engineer shall design and approve all load-ing apparatus,loaded members,support frames,and testprocedures.The text of this standard references notes andfootnotes which provide explanatory material.These notes andfootnotes(excluding
10、 those in tables and figures)shall not beconsidered requirements of the standard.This standard alsoincludes illustrations and appendices intended only for ex-planatory or advisory use.1.7 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values sta
11、ted ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.8 The gravitational system of inch-pound units is usedwhen dealing with inch-pound units.In this system,t
12、he poundlbf represents a unit of force weight,while the unit for massis slugs.The rationalized slug unit is not given,unless dynamicF=ma calculations are involved.1.9 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026.1.
13、10 The method used to specify how data are collected,calculated,or recorded in this standard is not directly related tothe accuracy to which the data can be applied in design or otheruses,or both.How one applies the results obtained using thisstandard is beyond its scope.1.11 ASTM International take
14、s no position respecting thevalidity of any patent rights asserted in connection with anyitem mentioned in this standard.Users of this standard areexpressly advised that determination of the validity of any such1These test methods are under the jurisdiction ofASTM Committee D18 on Soiland Rock and a
15、re the direct responsibility of Subcommittee D18.11 on DeepFoundations.Current edition approved June 15,2013.Published July 2013.Originallyapproved in 1978.Last previous edition approved in 2007 as D3689 07.DOI:10.1520/D3689_D3689M-07R13.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700
16、,West Conshohocken,PA 19428-2959.United States1 patent rights,and the risk of infringement of such rights,areentirely their own responsibility.1.12 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 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soi