吉林大学学报(地球科学版) ›› 2020, Vol. 50 ›› Issue (6): 1854-1861.doi: 10.13278/j.cnki.jjuese.20180323
• 地质工程与环境工程 • 上一篇
邱淑伟1,2,3, 吴亚敏1,2,3, 柯昱琪1,2,3, 闫佰忠1,2,3
Qiu Shuwei1,2,3, Wu Yamin1,2,3, Ke Yuqi1,2,3, Yan Baizhong1,2,3
摘要: 为了解决传统的Theis配线法在求参过程中无法利用全部抽水试验数据、手动配线效率较低、求参过程受人为主观因素影响较大等问题,利用抽水试验数据,以Theis公式和叠加原理为理论基础,以理论计算降深与实测降深的Nach-Sutcliffe效率系数值达到最大为目标函数,基于Matlab软件编程,再利用遍历搜索算法对导水系数(T)、贮水系数(S)在其对应范围内进行遍历,实现了水文地质参数的自动精确求解。将遍历搜索算法应用于2个抽水试验实例的水文地质参数求解,并与传统求参方法的计算结果进行比较分析。结果表明:利用遍历搜索算法求参的计算结果与传统求参方法的计算结果相近,表明利用遍历搜索算法求解水文地质参数有效可靠;2个抽水实例利用遍历搜索算法得到的参数对应的理论计算降深与实测降深的Nach-Sutcliffe效率系数值分别为0.996 5、0.970 8,且相比传统的求参方法而言更接近1.000 0,说明其拟合程度更好。
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