Riverway cross-section two-dimensional underground seepage hydraulic experiment device

Abstract

The invention belongs to an equipment manufacturing technology in the field of seepage hydraulics, and relates to a riverway cross-section two-dimensional underground seepage hydraulic experiment device. The front fa.ade is uniformly provided with sand sampling holes; an unsaturated zone and an underground seepage region are positioned above and below a phreatic line respectively; a sand packing is filled in a fa.ade steel framework groove body; the bottom of an underground seepage region water outlet vertical shaft is provided with a tee joint and a blow-down pipe valve which are fixedly connected with an underground water level adjusting tank; pressure measuring pipes on a pressure measuring row are fixedly connected with the sand sampling holes through hoses; the upstream tank bottom of a first overflow clapboard in the middle of a riverway water level adjusting tank is fixedly connected with a riverway water inlet hose, a flowmeter and a valve, and the downstream tank bottom is connected with an overflow pipe; the middle of the underground water level adjusting tank is provided with a second overflow clapboard; and a gravimetric method metering water tank is fixedly provided with a drain pipe valve, and is arranged on an electronic platform scale. The device is simple in structure, convenient to operate, easy to manufacture and master, flexible to control and adjust and environment-friendly.

Description

Technical field: [0001] The invention belongs to the equipment manufacturing technology in the field of seepage hydraulics, and relates to a basic experiment and systematic research equipment for the two-dimensional underground seepage hydraulics of the cross-section of the river channel, in particular to a two-dimensional underground seepage hydraulics experiment of the cross-section of the river channel device. Background technique: [0002] Seasonal rivers in the arid and semi-arid areas of northern my country often dry up. When the flood season comes, the first few floods will cause obvious water seepage loss along the river. The seepage along the channel during the flood period directly affects the evolution of the flood process, the fluctuation of the flood peak, the size and volume of the flood peak, and other water information such as the amount and process of groundwater recharge. For example, the underground reservoir located in the valley plain of the lower reache...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art, seek to design and provide a two-dimensional underground seepage hydraulics experimental device for the cross-section of a river, which is used for accurate forecasting of seasonal river flood peaks in the arid and semi-arid areas of northern my country, calculation of groundwater recharge and Grasp the mechanism and effect of river seepage affecting flood evolution, provide accurate technical methods and experimental devices, and solve the problems of unsaturated two-dimensional seepage in the vadose zone, surface precipitation, and changes in river water level and groundwater level that cannot be considered in conventional experimental devices

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