Multifunctional self-circulating experimental apparatus for seepage teaching

Abstract

The invention discloses a multifunctional self-circulation filtration teaching experiment device, which is characterized by the following: setting upstream and downstream water level overflow plates on two sides of gate base; setting water gate floor on the top of gate base with gate on the top of water gate floor; connecting left and right ends of gate base with upstream backwater pipe and downstream backwater pipe; setting the colorful liquid inlet pipe among the control upstream water level overflow plate, control downstream water level overflow plate and gate base; setting water-in pipe on the left down end upstream of gate base, which connects pump with reservoir; setting the pump controller on the pump. When experimenting, the colorful liquid inlet pipe inserts on the top of gate base. The device demonstrates the earth dam and gate filtration as well as observing drafted phreatic line and flow net picture, which generates the filtration pressure and distribution under the gate base and average filtration slope-drop of each downstream outlet net flow.

Description

technical field [0001] The invention relates to a multifunctional self-circulating seepage teaching experimental device capable of simultaneously or separately demonstrating the seepage of earth dams and sluices by using an automatic circulation system, and belongs to the teaching of disciplines including civil engineering, geotechnical engineering, agricultural engineering, and hydraulic engineering. Instrument technology field. Background technique [0002] The shape and size of the voids in the soil are extremely irregular, so the penetration of water in the voids of the soil is a very complicated phenomenon. Since the voids in the soil are generally very small, the viscosity of water flowing in the soil The hysteresis is large and the flow velocity is slow, so the flow state is mostly laminar flow. However, there is no teaching experimental device that shows this laminar flow characteristic in the experiment, so whether it is in the teaching of civil engineering, geotec...

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Problems solved by technology

However, there is no teaching experimental device that shows this laminar flow characteristic in the experiment, so whether it is in the teaching of civil engineering, geotechnical engineering, agricultural engineering or hydraulic engineering, teachers cannot demonstrate the phenomenon of water seepage in soil voids. Students also fail to gain a perceptual understanding of laminar motion

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