基于水力层析法的渗漏通道反演研究

发布时间：2018-03-17 12:50

本文选题：水力层析法　切入点：抽水试验　出处：《人民黄河》2017年03期 　论文类型：期刊论文

【摘要】：渗漏通道反演研究对探测堤坝渗漏起着非常重要的作用。通过数值抽水试验,运用水力层析法对含水层渗漏通道进行了反演研究。建立了一个二维垂直饱和渗漏含水层,含水层大小为18 m×18 m,渗漏含水层布设3口斜井。通过非稳定流抽水试验,在监测点监测不同时刻的水头响应数据,运用连续线性估计方法(SSLE)对含水层储水系数进行反演,结果表明:通过非稳定流抽水试验刻画渗漏含水层储水系数的详细分布,能够有效识别渗漏通道分布情况;斜井多的情况下,可以揭露更多的含水层信息,获得更多的水头响应数据,最终的识别效果好于斜井少的情况;地质资料齐全的情况下,非稳定流水力层析法能够准确探明渗漏通道的位置。
[Abstract]:The research of seepage channel inversion plays an important role in detecting the leakage of dike dam. Through numerical pumping test, the seepage channel of aquifer is inversed by hydraulic chromatography. A two-dimensional vertical saturated seepage aquifer is established. The aquifer size is 18 m 脳 18 m and the seepage aquifer is set up with 3 inclined wells. Through the unsteady flow pumping test, the water head response data at different times are monitored at the monitoring point, and the water storage coefficient of the aquifer is inversed by using the continuous linear estimation method (SSLEE). The results show that the detailed distribution of the water storage coefficient of the leakage aquifer can be effectively identified by the unsteady flow pumping test, and more aquifer information can be disclosed when there are many inclined wells. More water head response data are obtained, and the final recognition effect is better than that in inclined wells. Under the condition of complete geological data, the unsteady income force chromatography can accurately determine the location of leakage passage.
【作者单位】：石家庄职业技术学院;
【分类号】：TV698.12

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