Ball valve type deposited soil undisturbed soil sample sampling device and sampling method thereof

• Main Authors: YOU XINHUA, SONG FUYUAN, YANG CHUNYING
• Format: Patent
• Language: English
• Published: 11.03.2015
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a ball valve type deposited soil undisturbed soil sample sampling device and a sampling method thereof. The device comprises a handle, a rotary shaft, a counterweight bearing table, a shoe, an openable and closeable blade, a shaft cover and at least one extension rod, and further comprises a plurality of counterweights. The using method of the device comprises the following steps: 1) determining the pitch number of the extension rods and the number of the counterweights, passing the free end of a traction rope to symmetrical through holes of the counterweights along grooves of the counterweights, rotating the handle to be vertical to the ground, sleeving the required counterweights on the extension rods by virtue of the handle, and rotating the handle to be parallel to the ground; 2) putting the sampling device into water, maintaining the water flow channel smooth and inserting the shoe into a mud soil layer to sample; 3) lifting the traction rope and closing the lower end opening of the shoe; 4) unloading the counterweights and taking out a sludge sample. The device disclosed by the invention is simple in structure, convenient to detach and easy to carry, and maintains the original characters of the sludge sample, so that the device is particularly suitable for interface sampling with relatively high river level and water depth of lake.