论文部分内容阅读
目前国家对土地整理、中底产田改造等项目投资日益增加,其中机井灌溉项目较多,根据地质的不同施工工艺也不同,目前用于农用机井的主要方法有冲击式、潜孔锤钻和反正循环等种类,下面主要简述农用机井反循环工艺施工程序及要点。
At present, the state invests more and more in projects such as land consolidation and conversion of mid-field farmland, among which there are more irrigation projects in wells and different construction technologies according to geological conditions. Currently, the main methods used in agricultural wells include impacting, downhole hammer drilling and Anyway, recycling and other types, the following briefly describes the agricultural well reverse circulation process construction procedures and points.