Design method for concealed conduit with externally coated filter material

Abstract

The invention provides a design method for an agricultural drain concealed conduit with an externally coated filter material. The method is integrating a filter material layer and a drain concealed conduit, so as to form an integral finished product, wherein the filter material layer comprises a straw rope layer and a geotextile layer. The method comprises the following steps: winding a straw rope tightly on the outer wall of the drain concealed conduit, so as to form a straw coated layer; coating geotextile on the straw rope; and winding a nylon rope on the geotextile layer, so as to ensure that the geotextile and the part in the geotextile are integrated without loosing. The diameter of the straw rope is 2 to 3 cm; and the geotextile comprises cloth strips which are 20 cm in width. The invention has the advantages that the water seepage capability of the passage of the agricultural drain concealed conduit is improved; the drain effect of the agricultural drain concealed conduit is improved; the mechanized construction is more convenient; and the burying process of the agricultural drain concealed conduit is simplified.

Description

technical field [0001] The invention belongs to the technical field of agricultural water and soil engineering, and in particular relates to a design method for a farmland drainage hidden pipe with an outsourcing filter material. Background technique [0002] The outsourcing filter material of the underground pipe is an important link to improve the water seepage capacity of the underground pipe channel and the drainage capacity of the underground pipe, so its structural design is an important aspect of the drainage engineering design of the plastic underground pipe in the farmland. Due to the small construction scale of the traditional farmland underground pipe drainage project, pipe trench excavation, filter material filling, underground pipe laying and earthwork backfilling are all done manually. With the continuous expansion of the construction scale of plastic concealed pipe drainage projects in farmland and the increasing popularity of mechanized construction, the proc...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a farmland drainage dark pipe with outsourcing filter material in order to overcome the defects of the traditional farmland dark pipe drainage engineering process, which is cumbersome and the engineering effect is not obvious. The pipe design method can not only optimize the construction method of the plastic concealed pipe drainage project in the farmland, but also realize the function of improving the drainage and seepage capacity of the plastic concealed pipe in the farmland and preventing the silting of the suction pipe

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