Full-automatic constant-temperature and constant-pressure soil permeameter

Abstract

The invention provides a full-automatic constant-temperature and constant-pressure soil permeameter. The full-automatic constant-temperature and constant-pressure soil permeameter comprises a workingplatform, a boosting water pump, a measuring cylinder, a test sample container, a control platform and a water tank, wherein the water tank is arranged in the working platform; the water tank is connected with the boosting water pump at one side; the test sample container is arranged at the upper end of the working platform; the measuring cylinder is mounted at one side of the test sample container and the control platform is arranged at the other side of the test sample container; a water taking opening is formed in the test sample container; the water taking opening is matched with the measuring cylinder; the control platform is provided with a pressure controller, a temperature controller and a water flowing valve; the test sample container is connected with the boosting water pump through a water inlet pipe. According to the permeameter provided by the invention, the pressure controller is matched with the temperature controller, so that the temperature of water in the water tank and the pressure value of the boosting water pump can be ensured, and a data range of a penetration test is effectively enlarged; meanwhile, the penetration test can be carried out only if temperatureand pressure are directly set after the permeameter is mounted, and the permeameter is convenient to operate.

Description

technical field [0001] The invention relates to the technical field of infiltration meters, in particular to a fully automatic constant temperature and constant pressure soil infiltration meter. Background technique [0002] The soil infiltration meter can measure the penetration test of sandy soil and non-cohesive soil containing a small amount of gravel under constant water head. The existing soil infiltration meter mainly includes a top cover, a base, a sleeve, a screw and a water inlet pipe. The top cover is fixed on On the base, the upper cover is provided with a water inlet hole, and the base is provided with a water outlet hole. The sleeve includes a beam and a vertical rod connected vertically to each other. The vertical rod is fixed on the base; the screw is connected to the beam of the sleeve, and the bottom of the screw The end is pushed on the upper cover, and the water inlet pipe is connected with the water inlet hole of the upper cover. When the above-mentione...

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Problems solved by technology

The soil infiltration meter with the above structure has the characteristics of simple structure and convenient operation, but because the pressure of its water inlet only depends on the water pressure of the water inlet pipe, on the one hand, the data range of the infiltration test is not wide, and it cannot be used for the case of high water inlet pressure. On the other hand, because the pressure of the water inlet only depends on the water pressure of the water inlet pipe, the water inlet pipe is required to have a corresponding height, which makes the volume of the instrument larger

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