Irrigation and drainage integrated farmland underground pipe simulation device and method for determining underground pipe combinations

Abstract

The invention provides an irrigation and drainage integrated farmland underground pipe simulation device and a method for determining underground pipe combinations, and belongs to the technical fieldof agricultural engineering. The irrigation and drainage integrated farmland underground pipe simulation device and the method for determining the underground pipe combinations aim at solving the problems that in the prior art, a method for determining the intervals and the burial depths of underground pipes is complex, time and labor are wasted, and drainage of the underground pipes is difficultunder the farmland unsaturated condition. The simulation device comprises a box body, a water collecting box, inserted type underground pipes or wooden plugs cooperating with underground pipe inserting holes, an underground water simulation structure, air nozzles and seven piezometer tubes. Multiple underground pipe water holes are formed in the portions, located in the box body, of the inserted type underground pipes, one ends of the inserted type underground pipes communicate with the water collecting box through underground pipe water supply units, and the other ends of the inserted type underground pipes communicate with an external collecting facility. The underground water simulation structure communicates with the water collecting box through an underground water supply unit. The air nozzles are arranged at the forming positions of sensor inserting holes formed in the outer surface of the box body. The seven piezometer tubes are arranged at the center axis position of one side face of the box body from top to bottom, form a row and have equal altitude differences.

Description

technical field [0001] The invention belongs to the technical field of agricultural engineering, and in particular relates to an irrigation and drainage integrated farmland concealed pipe simulation device and a method for determining the combination of concealed pipes. Background technique [0002] Underground drainage pipes are widely used in anti-waterlogging areas and saline-alkali land improvement areas because they can effectively control the rise of groundwater, reduce the salinity of groundwater, improve the physical and chemical properties of soil, save land, and increase food production. The spacing and depth of buried pipes restrict the drainage efficiency and economic benefits of the project, and directly affect the popularization and application of plastic concealed pipe drainage and stain reduction technology. The burial depth of the underground pipe is mainly determined by the burial depth of groundwater required to ensure the normal growth of crops, while con...

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Problems solved by technology

[0007] The purpose of the present invention is to propose an irrigation and drainage integrated farmland concealed pipe simulation device and a method for determining the combination of concealed pipes, so as to solve the complex, time-consuming, laborious and unsaturated conditions of farmland existing in the prior art for determining the distance between concealed pipes and buried depth Difficulty in draining underground pipes; determine the optimal spacing and buried depth of irrigation and drainage in underground pipes from the water migration mechanism, and also visually see the soil water migration process from the outside of the box body

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