Impact osmometer and operating method

Abstract

The invention discloses an impact osmometer, belonging to the technical field of a test instrument. An osmotic pressure chamber consists of an osmotic ring cutter, a permeable stone, a water inlet pipe, a water outlet pipe, an open base, an open lower cover and an open upper cover; the water inlet pipe is connected with the upper part of the osmotic pressure chamber, and the water outlet pipe is connected with the lower part of the osmotic pressure chamber; the lower part of the osmotic pressure chamber is connected with the open lower cover, and the upper part of the osmotic pressure chamber is connected with the open upper cover; a piezometer wire and a data collection line can pass through the open base and the open lower cover, a rubber ring pad is connected with the open lower cover, a pore water pressure gauge is arranged in the rubber ring pad, the permeable stone is circular, a circle is formed in the middle of the permeable stone which is connected with the lower part of the osmotic pressure chamber, and another circle is formed in the middle of the open upper cover; an impact load applying device consists of a first circular steel plate and a second circular steel plate, the first circular steel plate is welded with a reinforcing rib, and a pounder is connected with a rubber pad; and a piezometer wire and a data collection line are connected with a dynamic strain meter and are connected with output equipment which is connected with a computer. The impact osmometer is a testing tool for researching and testing the static and dynamic osmotic property of a soil body.

Description

technical field [0001] The invention relates to an impact osmotic piezometer and an operation method, belonging to the technical field of test instruments. Background technique [0002] At present, the permeameter used at home and abroad is a common method to study and test the permeability characteristics of soil. When using the penetrometer to study and test the permeability characteristics of the soil, first cut the ring knife into the soil sample for sample preparation, then put the ring knife and the soil sample into the penetrometer for saturation, connect the water inlet pipe 11 and the water outlet pipe 12, and flow to the water inlet pipe 11 Inject pure water, adjust the water level, open the 11 clamps of the water inlet pipe, start the stopwatch when water overflows from the water outlet, and record the changes of the water head and time at predetermined time intervals. Conventional permeameters cannot apply static or dynamic loads, so they can only use undisturbe...

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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an impact osmometer and its operation method, which can fill in the inability of the general osmometer in the existing geotechnical experiment instruments to dynamically test the pore water pressure and seepage of the soil under the action of static pressure or impact load. Based on the impact seepage test, it provides a method that can not only dynamically measure the change of pore water pressure in the soil sample when the soil is subjected to different static pressure or impact load, but also can monitor the permeability characteristics of the soil sample in real time. dynamic observation and recording

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