土的三相组成比例指标换算公式名称符号三相比例表达式常用换算式常见的数值范围含水率(%)ω%100smm1dsrGeS20~60土粒比重GswswsssVmG1esGss黏性土:2.72~2.75粉土:2.70~2.71砂土:2.65~2.69密度(g/cm3)Vm)1(dwseG1)1(1.6~2.0干密度(g/cm3)dVmsdeGwSd111.3~1.8饱和密度(g/cm3)satVVmwvssateeGwssat1)(1.8~2.3有效密度(g/cm3)'VVmwss'wsat'eGws1)1('0.8~1.3孔隙比esvVVe1dwsGe1)1(wsGe20~6020~60孔隙率(%)n%100VVnvwsdGeen11黏性土和粉土:0.40~1.20砂土:25~45饱和度(%)Sr%100vwrVVSwdsrneGS0~100)1(000eHHeeii即,001eeHH(2015.1.5)