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<p>Calculations of groundwater inflow into a construction excavation pit for hydro-technical utilities were performed using the DHI FEFLOW software package with the FreezeThaw75 module, taking into account freezing–thawing processes. Calibration simulations were carried out on one-dimensional models corresponding to five real thermometric boreholes and the thermophysical properties of the foundation soils were determined. As the open pit bottom progressively froze, a reduction in groundwater inflow was observed. Additionally, scenarios of artificial ground thawing were analyzed, including the use of electric probes and brine injection into wells.</p>

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Dewatering Under Permafrost Conditions with Consideration of Phase Transitions, Variations in Hydraulic Conductivity, and Soil Storage Properties

  • 期刊论文

  • 发表日期：

    2026年7月7日

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  • D. D. Lukanov,
  • I. A. Rastorguev,
  • A. S. Piotrovskii

摘要

Calculations of groundwater inflow into a construction excavation pit for hydro-technical utilities were performed using the DHI FEFLOW software package with the FreezeThaw75 module, taking into account freezing–thawing processes. Calibration simulations were carried out on one-dimensional models corresponding to five real thermometric boreholes and the thermophysical properties of the foundation soils were determined. As the open pit bottom progressively froze, a reduction in groundwater inflow was observed. Additionally, scenarios of artificial ground thawing were analyzed, including the use of electric probes and brine injection into wells.