Current Volume 9
Hypothetical Numerical Evaluation of 10-Year Household Pumping-Induced Settlement Across Representative Soils in Cabanatuan City
Abstract
This study presents a comparative numerical evaluation of hypothetical household pumping-induced settlement across eleven representative soil profiles in Cabanatuan City, Philippines. Using PLAXIS 3D (2025.1), three household-demand scenarios of 600, 800, and 1000 L/day were represented through proportional phreatic-level reductions over a modeled 10-year period. The scenarios were imposed as relative groundwater-stress conditions only and were not derived from hydrogeologically calibrated field drawdown. Default Mohr-Coulomb material parameters were applied uniformly to isolate comparative soil-response trends. Results showed a consistent increase in modeled settlement with stronger imposed groundwater-stress scenarios across all soil profiles. Brown Sandy Silt exhibited the highest settlement, increasing from 29.50 mm at 600 L/day to 57.18 mm at 1000 L/day, while Hard Brown Clayey Silt showed the lowest response, ranging from 0.6024 mm to 1.093 mm. The findings indicate that silty and sandy soils generally experienced greater relative deformation than denser or more cohesive profiles under the adopted assumptions. The study provides a preliminary comparative framework for geotechnical screening, while emphasizing that the results are not site-specific field predictions.
Keywords
Comparative Modeling, Groundwater Extraction, Land Subsidence, PLAXIS 3D, Settlement
Citations
IRE Journals:
Neil Xyrone Balmeo, Ralph Genesis Laureano, Alwynpol Moran, Rofer Eunand Pagsulingan, Rosel V. Babalcon "Hypothetical Numerical Evaluation of 10-Year Household Pumping-Induced Settlement Across Representative Soils in Cabanatuan City" Iconic Research And Engineering Journals Volume 9 Issue 11 2026 Page 1297-1301 https://doi.org/10.64388/IREV9I11-1717417
IEEE:
Neil Xyrone Balmeo, Ralph Genesis Laureano, Alwynpol Moran, Rofer Eunand Pagsulingan, Rosel V. Babalcon
"Hypothetical Numerical Evaluation of 10-Year Household Pumping-Induced Settlement Across Representative Soils in Cabanatuan City" Iconic Research And Engineering Journals, 9(11) https://doi.org/10.64388/IREV9I11-1717417
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