1、Designation:D727716Standard Test Method forPerformance Testing of Articulating Concrete Block(ACB)Revetment Systems for Hydraulic Stability in Open ChannelFlow1This standard is issued under the fixed designation D7277;the number immediately following the designation indicates the year oforiginal ado
2、ption 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.Scope1.1 The purpose of this test method is to provide specifica-tions for the hydrauli
3、c testing of full-scale articulating concreteblock(ACB)revetment systems under controlled laboratoryconditions for purposes of identifying stability performance insteep slope,high-velocity flows.The testing protocols,includ-ing system installation,test procedures,measurementtechniques,analysis techn
4、iques,and reporting requirements aredescribed in this test method.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in brackets are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.Reporting or use of uni
5、ts otherthan inch-pound shall not be considered non-conformance aslong as the selected parameters described regarding flumeconstruction by the inch-pound system used in this method aremet as a minimum.1.2.1 The gravitational system of inch-pound units is usedwhen dealing with inch-pound units.In thi
6、s system,the pound(lbf)represents a unit of force(weight),while the unit for massis slugs.The rationalized slug unit is not given,unless dynamic(F=ma)calculations are involved.1.3 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPrac
7、tice D6026.1.3.1 The procedures used to specify how data are collected,recorded and calculated in this Guide are regarded as theindustry standard.In addition they are representative of thesignificant digits that generally be retained.The proceduresused do not consider material variation,purpose of o
8、btainingthe data,special purpose studies or any considerations for theusers objectives;and it is common practice to increase orreduce significant digits of reported data to be commensuratewith these considerations.It is beyond the scope of thisstandard to consider significant digits used in analysis
9、 methodsfor engineering design.1.4 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
10、prior to use.NOTE1The quality of the result produced by this standard isdependent on the competence of the personnel performing it and thesuitability of the equipment and facilities used.Agencies that meet criteriaof Practice D3740 are generally considered capable of competent andobjective testing.U
11、sers of this standard are cautioned that compliancewith Practice D3740 does not in itself assure reliable results.Reliableresults depend on many factors and Practice D3740 provides a means ofevaluating some of these factors.2.Referenced Documents2.1 ASTM Standards:2D422 Test Method for Particle-Size
12、 Analysis of Soils(With-drawn 2016)3D653 Terminology Relating to Soil,Rock,and ContainedFluidsD698 Test Methods for Laboratory Compaction Character-istics of Soil Using Standard Effort(12,400 ft-lbf/ft3(600kN-m/m3)D1556 Test Method for Density and Unit Weight of Soil inPlace by Sand-Cone MethodD2216
13、 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)D3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock
14、 asUsed in Engineering Design and ConstructionD4318 Test Methods for Liquid Limit,Plastic Limit,and1This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rockand is the direct responsibility of Subcommittee D18.25 on Erosion and SedimentControl Technology.Current edition approved Apr
15、il 1,2016.Published April 2016.Originallyapproved in 2008.Last previous edition approved in 2008 as D7277-08.DOI:10.1520/D7277-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,
16、refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Plasticity Index of SoilsD5195 Test Method for Density of Soil and Rock In-Place atDepths Below Surface by Nuclear MethodsD6026 Practice for Using Significant Digits in GeotechnicalData3.Terminology3.1 Definitions:3.1.1 For common definitions