Laboratory experiment device capable of evaluating anti-erosion characteristic of saturated soil

Abstract

The invention discloses a laboratory experiment device capable of evaluating the anti-erosion characteristic of saturated soil. The laboratory experiment device comprises a water storage device I, a water storage device II, a water suction pump, a water storage device III, a filter, a test sample, pressure sensors, a turbidimeter, a water storage device IV, an electronic balance and a data acquisition instrument, wherein the water storage device I is filled with etching liquid which is conveyed to the water storage device II by the water suction pump through a guide pipe, and the water storage device II is placed in the water storage device III; etching liquid in the water storage device III flows backwards to the water storage device I through a guide pipe; etching liquid in the water storage device II flows to the filter through a guide pipe, and the filter is connected with the test sample in the downstream direction; the pressure sensors are arranged on the two ends of the test sample, a through hole, through which the etching liquid flows, is formed in the center of the test sample, and the test sample is connected with the turbidimeter in the downstream direction; the turbidimeter is connected with the water storage device IV through a guide pipe; the water storage device IV is placed on the electronic balance; and the pressure sensors, the turbidimeter and the electronic balance are connected with the data acquisition instrument. The laboratory experiment device has the characteristics of continuation, accuracy, convenience and the like on testing of the erosion rate of a soil body, and provides an effective test means for search and evaluation on the anti-erosion characteristic of foundation oil for dams, roads and the like.

Description

technical field [0001] The invention relates to a test device for evaluating the anti-erosion characteristics of saturated soil, in particular to an indoor test device capable of continuously, accurately and conveniently testing the erosion rate of saturated soil in the field of geotechnical engineering. Background technique [0002] With the continuous development of engineering construction, the safety of infrastructure such as dams and roadbeds has attracted more and more attention. There are many factors that cause damage or destruction of structures such as dams and roadbeds, and soil erosion is one of the important reasons. . Taking Australia as an example, the surface layer of the ground is covered with a large amount of erodible soil. With the alternation of warm and cold climate, a large amount of soil loss and embankment landslides are caused. The cohesion force is reduced, and the soil is easily eroded by external forces such as rainwater and wind, which will cau...

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Problems solved by technology

[0004] Purpose of the invention: The technical problem to be solved by the present invention is to propose a test device for continuous and quantitative evaluation of the anti-erosion characteristics of saturated soil that can be used in the field of geotechnical engineering for the quantitative evaluation of the erosion rate of saturated soil that cannot be carried out in China at present.

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