CAJ | 학술논문

在Philip与Nestingen土壤水运动计算方法基础上,推导出描述单环变水头入渗试验中水深变化过程的计算公式,提出了确定土壤垂向渗透系数的MP方法.利用土壤非饱和数值模拟及室内土槽入渗试验得到的单环水位变化过程,验证了MP方法推求土壤垂向渗透系数的可靠性.结果表明:MP方法推求的土壤垂向渗透系数比目前采用的Philip方法、Nestingen方法及Green-Ampt方法精度更高,具有广泛的应用前景.
재Philip여Nestingen토양수운동계산방법기출상,추도출묘술단배변수두입삼시험중수심변화과정적계산공식,제출료학정토양수향삼투계수적MP방법.이용토양비포화수치모의급실내토조입삼시험득도적단배수위변화과정,험증료MP방법추구토양수향삼투계수적가고성.결과표명:MP방법추구적토양수향삼투계수비목전채용적Philip방법、Nestingen방법급Green-Ampt방법정도경고,구유엄범적응용전경.
Based on the Philip's method and the Nestingen's method for soil water infiltration computation, a new modified Philip (MP) method describing the variation of water depth in a single-ring permeameter is proposed for estimating vertical hydraulic conductivity.The MP method was validated on the basis of water depths in the single-ring permeameter from a numerical simulation and experiment results with in indoor troughs.The result indicates that the estimated vertical hydraulic conductivity using the MP method is more accurate than those of using the original Philip method, the Nestingen method, and the Green-Ampt method, which shows prospects for future applications.