Sensitivity analysis of seepage field in groundwater reservoir based on orthogonal test method

Jiahuan He,Xiaoyu Wang,Yue Zhang,Xin Gao,Dong Lei,R Weerasinghe,C.-H Weng,J Wu

doi:10.1051/e3sconf/202019405019

Jiahuan He, Xiaoyu Wang + Show 6 more

Open Access

https://doi.org/10.1051/e3sconf/202019405019

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Abstract

Based on the ADINA-T finite element software, the effects of different underground dam depths, widths and permeability coefficients on the seepage field in the underground reservoir were studied. Based on the sensitivity analysis and calculation of the three parameters of the underground dam based on the orthogonal experiment method, the depth and permeability coefficient of the underground dam have a significant effect on the sensitivity of the groundwater level drop height in front of the dam, the width and the permeability coefficient have a significant effect on the maximum flow velocity, and depth has great influence on seepage flow.

Highlights

The groundwater reservoir is a kind of water conservancy project that uses porous loose media as a water storage medium
The orthogonal test method is widely used in the sensitivity analysis of the model parameters of water conservancy projects[4]
The height Δh, the maximum flow velocity vmax, and the single-wide flow q are used as calculation indexes, and filled in Table 4, and the sensitivity of each parameter of the underground dam to the test index is solved according to the range analysis method

Summary

Introduction

The groundwater reservoir is a kind of water conservancy project that uses porous loose media as a water storage medium. It has the advantages of low construction cost, low risk, and small negative effect on the operating environment. The orthogonal test method is widely used in the sensitivity analysis of the model parameters of water conservancy projects[4]. Based on the finite element software ADINA-T module, the analysis and analysis of the influence law and sensitivity characteristics of underground dam parameters on the seepage field of underground water reservoirs are provided, which provide reliable seepage for design analysis Basis of load calculation

Seepage calculation finite element model

Conclusion