ISWC OpenIR  > 水保所知识产出(1956---)
均匀坡微灌毛管适宜布置形式优选
鞠学良1; 吴普特1; Weckler R Paul2; 张林1; 朱德兰3
2016
Source Publication农业机械学报
Volume47Issue:5Pages:123-128
Abstract

根据微灌毛管水力解析模型,通过分析微灌双向布置和单向顺坡布置形式对流量偏差率及毛管进口工作水
头的影响,得出均匀坡微灌毛管双向布置的适用条件为最佳支管位置参数大于0. 13,当最佳支管位置参数不大于0. 13
时,微灌毛管宜单向顺坡布置。给出了考虑适宜布置形式的均匀坡微灌毛管设计步骤。通过2 个设计实例表明: 利用最
佳支管位置参数标准可有效选取适宜的毛管布置形式,设计步骤简便可行,可直接应用于微灌工程实践中。

Other Abstract

The chosen of lateral layout is the basis of hydraulic design of micro-irrigation laterals.
A simple and easily adaptable analytical approach was developed for the hydraulic design of microirrigation
laterals laid on uniformly sloping grounds based on the appropriate layouts. Two indictors for
comparing the emitter flow variation and inlet working pressure head from the paired layout and single
downhill layout were proposed based on the analytical models of micro-irrigation laterals. By evaluating
the effects of micro-irrigation laterals layouts on the emitter flow variation and working pressure head,the
application condition for paired layout was suggested as the best manifold position is not less than 0. 13.
When the best manifold position is less than 0. 13,the micro-irrigation lateral was proposed to use the
single downhill layout in order to save the extra cost of material and installation from the paired layout.
The design procedure for hydraulic design of micro-irrigation laterals was revised by considering the
determination of appropriate layout. Two design cases covering various conditions indicated that the best
manifold position criterion for determining the appropriate layout is more effective than the value of ground
slope proposed by Keller method. The proposed approach could produce accurate results for practical
purposes. This research could provide valuable information for improving the hydraulic design of microirrigation
systems.

Keyword微灌 布置形式 双向毛管 解析模型
Indexed By中文核心期刊要目总览
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8645
Collection水保所知识产出(1956---)
Affiliation1.西北农林科技大学水土保持研究所
2.俄克拉荷马州立大学生物系统与农业工程系
3.中国旱区节水农业研究院
Recommended Citation
GB/T 7714
鞠学良,吴普特,Weckler R Paul,等. 均匀坡微灌毛管适宜布置形式优选[J]. 农业机械学报,2016,47(5):123-128.
APA 鞠学良,吴普特,Weckler R Paul,张林,&朱德兰.(2016).均匀坡微灌毛管适宜布置形式优选.农业机械学报,47(5),123-128.
MLA 鞠学良,et al."均匀坡微灌毛管适宜布置形式优选".农业机械学报 47.5(2016):123-128.
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