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目前我国各土工试验单位的液限试验,一致采用了苏联瓦西里耶夫圆锥式液限仪,且一般都在直径4公分高度2公分的液限杯内测定,这种操作仪器及其规格,早已为大家所公认;但我们认为在杯内测定还有不方便的地方,因此建议原在杯内测定的方法,改为直接在调土碗中测定(操作与杯中相同,将土刮至与碗边齐平,但土体约占碗一半),试验证明了这样做的结果是正确的,同时大大提高了工作效率,兹将试验对比资料列于表1。表中资料表明在杯中或在碗中测定,其结果实际上是完全一致的。
At present, the liquid limit tests of various geotechnical test units in China have consistently adopted the Soviet Vasilyev Cone Liquid Limiter, which is generally measured within a liquid limit cup with a diameter of 4 cm and a height of 2 cm. This type of operation instrument and its specifications It has long been recognized by everyone; but we think that there is inconvenience in the determination of the cup, so it is recommended that the original method of determination in the cup, instead of measuring directly in the adjusting bowl (the same operation with the cup, the soil will be scraped to It is flush with the bowl edge, but the soil accounts for about half of the bowl. Experiments have proved that the result of doing so is correct, and at the same time, the work efficiency has been greatly improved. We will compare the test data in Table 1. The data in the table shows that the results are virtually identical in the cup or in the bowl.