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在对几种常用的喷灌管道进行了沿程水头损失试验的基础上,提出了一系列管道沿程水头损失的计算公式,分析了这些公式理论上的完备性和实用上的可行性。本文提出的沿程水头损失公式与目前常用的三个国外经验公式相比,其精确程度可以提高20～60％;与我国国家标准《喷灌工程技术规范》(GBJ85-85)相比,部分数据更趋合理;与我国各喷灌测试基地以往多次试验结果基本一致。
Based on the test of head loss of several conventional sprinkler pipes, a series of formulas for calculating the head loss along the pipelines are proposed, and the theoretical completeness and practicability of these formulas are analyzed. Compared with the commonly used three foreign empirical formulas, the accuracy of the head loss formula along the way proposed in this paper can be increased by 20-60%. Compared with the national standard “Sprinkler Irrigation Engineering Specifications” (GBJ85-85), some data More reasonable; sprinkler irrigation test base in our country in the past many times the test results are basically the same.