西北水利科学研究所在凤翔万亩喷灌试点中将灰土暗管应用于喷灌系统中。它的突出优点是输水有效利用率可达95％,由于大幅度降低了输水损失,深井喷灌区能耗比土渠可节省50％,比用混凝土衬砌的明渠节省投资38.8％,可减少占地1.2～2％,省去了联结和交叉建筑物;管径200mm的灰土暗管,采用流量36m~3/s的泵井可供 Northwest Institute of Water Resources in Fengxiang mu acres of sprinkler irrigation pilot will be used in sprinkler irrigation system. Its outstanding advantage is the effective utilization of water delivery can reach 95%, due to a substantial reduction of water loss, energy consumption in deep well sprinkler area than the canal can be saved 50%, compared with the concrete lining of the open channel to save 38.8% investment can be reduced Covers an area of ​​1.2 ~ 2%, eliminating the need to connect and cross buildings; pipe diameter of 200mm ash pipe, the use of flow 36m ~ 3 / s pump wells available