Preparation method of drainage underground pipe device with seepage guiding function

Abstract

The invention relates to the technical field of the farmland drainage and in particular to a preparation method for a buried pipe drainage device in unsaturation soil conditions. The preparation method for the drainage buried pipe device with a guide seepage effect comprises the following steps: manufacturing a drainage buried pipe; manufacturing a macro-pore flow guide pipe; manufacturing a connector; and assembling the drainage buried pipe device with the guide seepage effect. The preparation method has the following advantages: the technology is simple, raw materials are easily obtained, the method is economical and practical, the manufactured drainage buried pipe device can actively produce a macro-pore flow in unsaturation soil, the guide seepage effect is achieved on soil moisture, the elution of a salic horizon is promoted in the drip irrigation condition, and the drainage effect of the buried pipe in the unsaturation soil can be achieved. The preparation method for the drainageburied pipe device with the guide seepage effect is simple and convenient in operation, and strong in feasibility.

Description

technical field The invention relates to the technical field of farmland drainage, in particular to a preparation method of a device for performing underground pipe drainage under unsaturated soil conditions. Background technique The current underground pipe drainage technology and equipment in farmland are mainly suitable for drainage and leaching of soil salt under the condition of soil saturated flow. It has a very long application history and mature use methods, as well as a relatively complete design theory. However, the current underground drainage pipes rely on soil water gravity potential and pressure potential for drainage. Under unsaturated soil conditions, the drainage effect is not ideal. Therefore, it is difficult to exert its drainage and leaching salt under the condition of water-saving irrigation. role. Under the condition of drip irrigation, the soil moisture depth is shallow and the soil is in an unsaturated state, so it is difficult for the soil salt to ...

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Problems solved by technology

But in this way, it is difficult for the water in the unsaturated soil to infiltrate to such a depth, making it very difficult for the water to wash the soil salt

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