Based on the working principle the adjusting range of construction and working p arameters were determined for the design of a spade soil opener for a punch pla nter.

• 根据铲式成穴器的成穴机理确定了其结构参数和工作参数的设计变化范围，并按照二次回归试验设计方法进行了成穴器参数对成穴性能影响的试验。