Sediment sampler and sampling determination method using same

Abstract

According to the sediment sampler and the sampling and measuring method using the sampler, the sampling pipe part is designed to be U-shaped, so that when the sediment with high water content and low shear strength such as ocean soft soil is sampled, a soil sample can be naturally left in the sampling pipe, and a complicated pipe structure does not need to be used for preventing the soil sample from sliding off from the sampling pipe; the U-shaped pipe can provide stable air pressure at pipe orifices at the two ends during sampling, so that the interior of a soil sample cannot be extruded due to the change of the air pressure in the pipe, and high-precision pressure-maintaining sampling is realized; the detachable design of the U-shaped pipe avoids the weighing error caused by the dead weight of the sampler, and the accuracy of parameter measurement is greatly improved. 本申请一种沉积物的采样器及使用该采样器的采样测定方法，采样管部分设计为U形，使得在对海洋软土等含水量高、抗剪强度低的沉积物进行采样时，土样能够自然地留在采样管中，无需使用复杂的管结构来防止土样从采样管中滑落；U形管在采样时能够在两端的管口提供稳定的气压，使得土样内部不会因管内气压变化而发生挤压，实现高精度的保压采样；U形管的可拆除设计避免了采样器自重引入的称量误差，大大提高参数测定的准确性。