软基地质勘探中的一项主要工作,是用土钻取原状土样。但是,由于现有取土器的构造技术没有过关,遇到砂、松散的砂性土和软粘土等,往往取不出原状土样,遇到较硬的粘性土则又压不进去,因此,不易为设计提供可靠的依据。为了解决这个问题,我们吸取国内外现有的取土器的优点,自行设计并制造了一种橡皮垫上提气密活门式取土器。这种取土器,结构简单,操作方便,保持气密性能良好,仅用一根 One of the major tasks in soft ground geological prospecting is to use unqualified soil samples. However, due to the fact that the construction technology of existing earth finders does not pass through, sand, loose sandy soil and soft clay are often encountered, and undisturbed soil samples are often not obtained, and the hard clay soil cannot withstand pressure. It is not easy to provide a reliable basis for design. In order to solve this problem, we took advantage of the existing earth pickers at home and abroad, and designed and manufactured a kind of pneumatic pick-up gate type earth pick-up device on the rubber pad. This type of earth finder has a simple structure, is easy to operate, and maintains a good airtight performance, using only one