推土机、挖掘机、挖坑机是实施平底坑开挖作业的首选机械，装载机、起重机为辅助作业机械。 作业前，应用标桩或就便材料标出平底坑的中心线及进出斜坡的起止点，标示物应设在机器作业活动界限之外。根据地形条件、土壤性质、天气情况、平底坑尺寸及开挖后安放构架的时间，确定 Bulldozers, excavators, digging machine is the implementation of the first choice of pit excavation machinery, loaders, cranes as auxiliary machinery. Before operation, mark the bottom line of the pit and the starting and ending points of the incline by stakes or convenient materials. The markings shall be located outside the limits of the operating activities of the machine. According to the terrain conditions, soil properties, weather conditions, pit size and the time of placing the structure after excavation, determine