Back pressure recovery side slope drainage system and method

Abstract

The invention provides a back pressure recovery side slope drainage system which comprises a drilled hole, a siphon, a water tank, an exhaust pipe, a drainage pipe, a drainage pipe valve, and a gas generator, wherein the gas generator comprises a left gas cylinder, a right gas cylinder, a flow guide pipe, a pressure gauge, a gas guide pipe, a branch pipe, a gas guide pipe valve and a one-way valve; the left gas cylinder contains a sodium carbonate solution; the right gas cylinder contains an acetic acid solution; the left gas cylinder is connected with the right gas cylinder through the flow guide pipe; the pressure gauge is arranged in the middle of the flow guide pipe; an inlet end of the gas guide pipe is arranged in the left gas cylinder; the gas guide pipe valve is mounted on the gasguide pipe; one end of the branch pipe is connected with the gas guide pipe; the one-way valve is mounted on the branch pipe; the water inlet of the siphon is formed in the drilled hole in a side slope; a water outlet of the siphon is formed in the sealed water tank; the exhaust pipe is mounted at the top of the water tank; a inlet end of the drainage pipe is connected with the bottom of the watertank; an outlet of the drainage pipe is formed in a drain ditch at the lower part of the side slope; and the drainage pipe valve is mounted at an outlet of the drainage pipe.

Description

technical field [0001] The invention belongs to the field of water conservancy engineering, and in particular relates to a reverse pressure recovery type slope drainage system and method, which is especially suitable for drainage of accumulated soil slopes in areas with abundant rainfall. Background technique [0002] Siphon technology is widely used in the field of water conservancy engineering, such as slope drainage, debris flow, water and rock separation, soft soil foundation drainage, etc. Among them, siphon technology is the most in-depth and extensive research in the field of slope drainage, and it is of great significance to the control of landslide disasters . [0003] Because the groundwater of the slope body is often deep, a high-lift siphon is required. In its practical application, air tends to accumulate in the siphon, mainly because the air is generally dissolved in the liquid, and the gas solubility in the liquid is related to the equilibrium distribution of ...

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Problems solved by technology

[0004] The present invention aims at the technical defect of low siphon start-up efficiency of existing slopes, and provides a reverse pressure recovery type slope drainage system and method, which can repeatedly perform siphon start-up during the use of the siphon drainage system, and solve the problems caused by siphon tube failure during the use of siphon drainage. Problems with internal air buildup that require periodic restarts and restoration of the siphon

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