Position: Home > Articles > Canal Down-Flow Method-A New Method to Measure Water Seepage Loss for Anti-seepage Canal
Water Saving Irrigation
2014
(6)
87-90
顺时法——一种测算防渗渠道输水损失的新方法
作 者：
高惠嫣;杨路华;赵小点;任希文;孙建峰
单 位：
河北农业大学;石津灌区管理局
关键词：
顺时法;动水法;静水法;渗漏强度
摘 要：
基于明渠均匀流原理提出渠道输水损失测定的改进动水法:顺时法,对此方法的试验原理、试验过程、计算方法进行详细论述。在石津灌区选取有代表性的渠道,进行了静水法、动水法、顺时法测算防渗渠道输水损失效果的对比试验。试验结果表明:顺时法测定的渗漏强度为5.255 6L/(m2·h),渗漏强度的离差均值为16.9931%,均比动水法测定结果小,与静水法测定值更接近。顺时法不仅可以满足渠道测流试验要求,水流流态要求较低,测算精度较高,而且操作简单、对仪器及人员配备要求低,不影响渠道正常输水使用,可用于衬砌渠道的选型及灌区日常的测流工作中。
译 名：
Canal Down-Flow Method-A New Method to Measure Water Seepage Loss for Anti-seepage Canal
作 者：
GAO Hui-yan;YANG Lu-hua;ZHAO Xiao-dian;REN Xi-wen;SUN Jian-feng;Agricultural University of Hebei;Irrigation District Bureau of Shijin;
关键词：
Canal down-flow method;;Dynamic water table method;;Hydrostatic method;;Seepage rate
摘 要：
Canal down-flow method,a new modified and improved canal dynamic water method,was put forward on the basis of open canal uniform flow.Experimental principle,process,and calculation formula about canal down-flow method were elaborated and deduced.An experiment of canal down-flow method was conducted on the representative canal in Shijin irrigation district in comparison with the hydrostatic method and dynamic water table method.The results showed that the seepage rate and its mean errors of canal down-flow method were 5.259 9L/(m2·h)and 20.223%,respectively,and both were smaller than those of dynamic water table method and more similar to those of hydrostatic method;canal down-flow method could meet the demand of canal seepage loss measurement;it also took advantages of simple operation,low demand of device and staff,non-interfering canal flow,etc;it could be widely used in flow loss measurement in irrigation area.
导出引用
计量
文章访问数: 16
HTML全文浏览量: 0
PDF下载量: 0
所属期刊
