论文部分内容阅读
一、概述在水利工程设计中常遇到许多试算问题,如土坝稳定分析中C、ρ值的反算,河道水面线计算,均质土坝下游无排水设施浸润线逸出点计算等等。以往采用手工和计算器进行试算工作量大。为了满足一定的精度要求,往往需要反复取值试算,而且每一次都要凭经验合理取值。用图表法虽然不需要试算,但图表法精度不高,误差大。当前,应用pc-1500计算机进行试算取值采用许多方法,有迭代法,线性插值法,拉格朗日插值法和柳条插值法等等,
I. Overview In trial design of hydraulic engineering, many trial calculation problems are commonly encountered, such as the back calculation of C and ρ values in the stability analysis of earth dam, the calculation of surface water line, the calculation of the escape point of non-drainage facilities and so on . In the past using manual and calculator trial workload. In order to meet the requirements of a certain precision, it is often necessary to repeatedly test the value, and each time should be based on experience reasonable value. Although the chart method does not require trial calculation, but the accuracy of chart method is not high, the error is large. At present, there are many methods for calculating the trial value using pc-1500 computer, including iterative method, linear interpolation method, Lagrange interpolation method and wicker interpolation method,