Soilsoil 系统标签: soilclassificationunifiedsoilsgravelgrained FromChapter5 U.S.Army(1997)MilitarySoilsEngineering.FieldManual5-410. On-lineathttp://.adtdl.army.mil/cgi-bin/atdl.dll/fm/5-410/toc.htm UnifiedSoilClassificationSystem SOILCATEGORIES–CoarseSoils Soilsseldomexistinnatureseparatelyassand,gra...
Designation: D2487 − 11Standard Practice forClassification of Soils for Engineering Purposes (UnifiedSoil Classification System) 1This standard is issued under the fixed designation D2487; the number immediately following the designation indicates the year oforiginal adoption or, in the case of ...