In the test,the heaps were constructed by the longhole blasting.In order to control the heap shape and the ore grain size,the method and parameters of longhole caving were analyzed.

• 试验中，采用了深孔爆破落矿筑堆，为了控制筑堆形状和矿石粒度，对深孔落矿方式和参数作了分析研究；