水利工程的土壤地基探驗工作,已逐渐提到重要地位。但是土样經常粘在取土器的襯管上而致破裂,無法作为力学試驗之用。这一問題總是没有好的解决办法。我們会試用在襯管內多塗油的办法,但是因为土样常常滑落,取不上土样來;也曾在襯管內部襯上臘紙或玻璃布,也都没成功。经过我們不断鑽研,到底想出了解决方法,並且簡單而有效。办法是:在襯管插入取土器,未放進孔裏取土以前,將取土器加熱,然後將已經化开的石臘灌到襯管里面。石臘冷却后就形成一層薄薄的臘皮;然後將取土器接在鑽桿上,再採取土样。结果很好,完全避免了土样破裂的現象。 Hydraulic foundation soil foundation inspection work, has gradually mentioned an important position. However, the soil sample often sticks to the liner of the earth borrower and ruptures, which can not be used as a mechanical test. There is always no good solution to this problem. We will try to apply more oil in the liner, but we have not succeeded in lining the lining with wax paper or glass cloth because the soil often slips off and does not get the soil sample. After we continue to study, in the end came up with a solution, and simple and effective. The method is: before the lining pipe is inserted into the earth borrower and before the earth is put into the hole, the earth borrower is heated, and then the already opened stone wax is poured into the lining pipe. After the wax is cooled down, a thin layer of lard is formed. Then the earth borrower is connected to the drill pipe and the earth sample is taken. The results are good, completely avoiding the phenomenon of soil rupture.