COMPARATIVE ANALYSIS OF INFILTRATION WELLS EFFICACY USING GEOSTUDIO SIMULATION AND FULL-SCALE EXPERIMENTAL TEST

Authors

  • Bambang Setiawan Sebelas Maret University
  • Galuh Chrismaningwang Universitas Sebelas Maret Surakarta
  • Yusep Muslih Purwana Universitas Sebelas Maret Surakarta
  • Niken Silmi Surjandari Universitas Sebelas Maret Surakarta
  • Raden Harya Dananjaya Universitas Sebelas Maret Surakarta
  • Siti Nurlita Fitri Universitas Sebelas Maret Surakarta

Keywords:

Infiltration well, Sandy soil, GeoStudio SEEP/W, 3D numerical modeling, Full-scale test model

Abstract

This study evaluates the performance of infiltration wells using full-scale field experiments and 3D numerical modeling with GeoStudio SEEP/W, focusing on sandy soils. Infiltration wells are essential for improving groundwater recharge, lowering urban runoff, and controlling flood risks. However, differences in soil qualities and external environmental circumstances are the leading causes of the frequent disparities between modeled predictions and field observations. The process consists of two primary steps: numerical modeling to duplicate these conditions and compare results and field testing to measure the amount of water absorbed by the soil during an hour. Detailed records of the attributes of the soil, including water content and grain-size distribution, as well as hydraulic conductivity, were made. The field results indicate a logarithmic increase in water infiltration, reflecting rapid initial infiltration that gradually plateaued, demonstrating the changes in soil saturation. However, the numerical model predicted a more consistent infiltration rate across similar intervals, highlighting a significant field-model discrepancy. Comparative analysis revealed that soil heterogeneity and initial moisture content significantly influence the infiltration rates, which were not accounted for entirely in the numerical model. External factors such as atmospheric conditions and unanticipated groundwater movement complicate accurate modeling. Enhancement of model parameters, incorporating comprehensive soil data, and integration of laboratory experiments are suggested to bridge the gaps between the numerical and field measurements. Furthermore, this research contributes to the sustainable management of groundwater resources by optimizing the design and implementation of infiltration wells, providing valuable insights for both practical implications and academic endeavors.

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Published

2024-10-26

How to Cite

Setiawan, B., Chrismaningwang, G. ., Purwana, Y. M., Surjandari, N. S. ., Dananjaya, R. H. ., & Fitri, S. N. . (2024). COMPARATIVE ANALYSIS OF INFILTRATION WELLS EFFICACY USING GEOSTUDIO SIMULATION AND FULL-SCALE EXPERIMENTAL TEST. GEOMATE Journal, 27(122), 63–70. Retrieved from https://geomatejournal.com/geomate/article/view/4612

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