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土的干容重是表达土体密度大小的定量指标。目前国内普遍采用土体容重测试方法,将取土环刀平放在铲平的土层上,用人工锤击打入土层,再用铁锹挖起装满土的环刀,修平环刀上下口的余土称其重量,由下式得出湿容重: 湿容重γ(克/厘米~3)=湿土重W(克)/环体积V(厘米~3) 再测得土的含水量,由下式得出干容重: 干容重γd(克/厘米~3)=湿容重γ(克/厘米3)/1+含水量ω(%)
The dry weight of the soil is a quantitative indicator of the size of the soil. At present, the test method for soil bulk density is commonly used in the country. The soil-removing ring knife is placed on a flat earth layer and hammered into the soil layer with an artificial hammer. Then, a shovel filled with soil is used to dig up the ring knife, and the ring knife is trimmed. The residual amount of the mouth is called the weight, and the wet bulk density is given by the following equation: Wet bulk density γ (g/cm~3) = wet soil weight W (grams)/ring volume V (cm~3) The measured water content of the soil The dry bulk density is given by the following formula: Dry bulk density γd (g/cm~3) = Wet bulk density γ (g/cm3)/1+ Water content ω (%)