Irrigation pipes are very important in agriculture. Their function is to provide crops with sufficient water to achieve high yield and high efficiency. Adequate water sources can ensure the growth of crops and have a certain inhibitory effect on the occurrence of pests and diseases in the land. At present, irrigation pipes can be divided into above ground irrigation pipe and underground irrigation pipes. Underground irrigation pipes are pipes that transport water from the water source to the inside of the field for irrigation. The length, diameter, material, and other parameters of the pipes are the key to determining their use effect.
Calculation method of underground irrigation pipe
1. Calculation method of pipe length
The length of the underground irrigation pipe is determined by the size and shape of the field, and can generally be calculated by manual survey and measurement. The specific method is: to calculate the total area based on parameters such as the length, width, height, and slope of the field, and then arrange the drainage equipment according to certain design principles based on the relationship between the field and groundwater, and finally determine the length of the pipe.
2. Calculation method of pipe diameter
The diameter of the underground irrigation pipe determines the flow rate and flow of the water flow, which is generally calculated by the cross-sectional area of the pipe. The specific method is: to design according to the size of the designed irrigation area, the height of the uplift, and the level of waterlogging, determine the liquid flow rate, and then select the pipe material according to the characteristics of the pipe material, and finally determine the pipe diameter.
3. Selection method of pipe material
Underground irrigation pipe is mainly made of plastic, cast iron, cement, etc. Each material has different characteristics and should be selected according to the actual use environment and needs. The specific method is: to determine the soil quality of the field, soil permeability, groundwater level, pressure on the pipe, ambient temperature, and corrosion resistance, and then make a comprehensive comparison based on economic factors, and finally make a selection. At present, the most commonly used plastic irrigation pipes are PVC and PE.
Application and construction
Underground irrigation pipe has a wide range of applications, including but not limited to farmland irrigation. Its advantages are good material, anti-aging, smooth inner wall, and customizable wall thickness. This kind of pipe is not only suitable for ground laying but also can be buried underground, especially for use in greenhouses in winter. It can not only properly replenish water, but also will not increase the humidity in the greenhouse, thus effectively reducing the occurrence of diseases.
The construction process of underground irrigation pipe includes several key steps: construction preparation, measurement and layout, trench excavation, pipeline installation, segmented pressure test, segmented backfilling, and overall pressure test. In this process, specific measuring instruments and professional surveyors are used for precise measurement and positioning to ensure the correct installation of the pipeline. Mechanical excavation is used for earth excavation, supplemented by manual cleaning to ensure construction efficiency and safety.
The calculation and construction of underground irrigation pipes have an important impact on the irrigation effect of the field and the service life of the equipment. Through reasonable calculation and material selection, the irrigation needs of farmland can be met and the yield of crops can be increased.
