关键词: 土壤液化；荸荠；采收船；砂壤土；挖掘器

Abstract:

Water chestnut grows in a special environment，and its harvest still relies on the traditional manual mining. The labor efficiency is low, and labor intensity is big. It is difficult to dig net. When as, it is difficult for potato harvest machinery to adapt to the rice field to harvest water chestnut. By analyzing the composition of soil where water chestnut grows in, a small experimental platform was built to carry out a test simulation of the mechanism of water chestnut digging according to the principle of soil liquefaction. A set of process suitable for rice paddy crop water chestnut mechanical mining and screening was put forward, and the theory of digging was explored. According to the analysis of experimental data, the main factors affecting water chestnut harvest have been obtained. The research showed that sandy loam can be liquefied by using the principle of soil liquefaction. The study provided a basis for the principle used for water chestnut harvest and provided design reference for water chestnut excavator prototype trial.

Key words: soil liquefaction, water chestnuts, harvesting ship, sandy loam, digging device