Multifunctional automatic permeameter for soil detection

Abstract

The invention relates to a multifunctional automatic permeameter for soil detection. The automatic permeameter is characterized by comprising an injection system, a model system and a data acquiring and processing system; the digital and modular acquiring and processing system is used for providing accurate measurement and control data for the whole permeameter, and a thermostat is used for simulating the soil temperature under the natural condition. Accordingly, measurement results are more accurate, a database, a report and a curve chart can be formed without a watch man or a large number of tedious test processes, and the application is flexible.

Description

technical field [0001] The invention relates to the fields of geological engineering and geotechnical test instruments, in particular to a multifunctional automatic permeameter for soil detection. Background technique [0002] Soil penetrometers measure the permeability of clay soils. Penetration tests are generally carried out under variable water head. Existing soil infiltration meters are all manual testers, mainly composed of air compressor, pressure regulating valve, pressure gauge, dial indicator, metering tube, base, permeable stone, ring knife, rubber water stop ring, directional sheet, compactor Ring, guide ring, pressure cap, steel ball, collar, water supply tank and water collection tank. [0003] The gas source used in the injection system of the general soil testing permeameter is used as the power source, the connection structure between the model system and the liquid storage container is complex and cumbersome, and the same gas source cannot be shared betwe...

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Problems solved by technology

The experimental results need to record the height of the metering tube, the volume difference of the metering tube, the permeation time and other data, and then calculate the test result according to the formula. The test process is cumbersome and the test result has low accuracy.

[0004] A grassland soil infiltration meter as described in Chinese Patent No. 201520597501.2, the grassland soil infiltration meter includes a water supply part and a water receiving part, and the water supply part is composed of a measuring cylinder, a measuring cylinder scale, a water hole, a valve and an instrument panel; The water part is composed of a buckle, a rubber sealing ring, and a ring knife; the measurement reading method adopted by the permeameter is prone to errors, and the measurement results require a lot of counting and calculation, and the process is cumbersome and complicated. It takes a lot of time to complete. Analytical calculation, low degree of systematization and automation

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