Mine karst aquifer hydrogeological parameter inversion method and system

By constructing a mathematical model of solid tidal response that considers overflow and well reservoir effects and a nonlinear least squares optimization algorithm, the problem of inversion of hydrogeological parameters of karst aquifers in mines was solved, and more accurate parameter acquisition was achieved, which is applicable to mine water hazard prevention and control and groundwater resource management.

CN122364593APending Publication Date: 2026-07-10ANHUI UNIV OF SCI & TECH
-1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI UNIV OF SCI & TECH
Filing Date
2026-04-02
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing technologies make it difficult to accurately obtain hydrogeological parameters of karst aquifers during mining operations, especially when hydrogeological conditions are disturbed after mining. Traditional methods are costly, complex to operate, and difficult to achieve long-term, continuous, and dynamic monitoring. Furthermore, existing inversion methods based on solid tides fail to fully consider crossflow effects and well-reservoir effects, resulting in insufficient model applicability.

Method used

A mathematical model of groundwater solid tide response considering the overflow effect and well storage effect under mining disturbance is constructed. The amplitude ratio and phase difference characteristic parameters are extracted by water level monitoring data. Multi-parameter joint inversion is performed by combining nonlinear least squares optimization algorithm to obtain parameters such as hydraulic conductivity, water storage coefficient and permeability coefficient.

Benefits of technology

The model has improved its applicability and accuracy, enabling a more realistic inversion of the groundwater response mechanism under mining disturbances. It provides more accurate hydrogeological parameters, offering reliable parameter support for mine water hazard prevention and groundwater resource management.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122364593A_ABST
    Figure CN122364593A_ABST
Patent Text Reader

Abstract

This invention relates to a method and system for inverting hydrogeological parameters of karst aquifers in mines. The method includes the following steps: constructing a mathematical model of groundwater solid tide response considering the effects of crossflow and well storage under mining conditions, and solving for analytical solutions of the aquifer head amplitude ratio and phase difference under tidal stress; acquiring long-term water level monitoring data from hydrological boreholes in the mining area, and extracting and separating the amplitude ratio and phase difference characteristic parameters of specific wave components of the solid tide; fitting the analytical solution with the extracted amplitude ratio and phase difference characteristic parameters, and introducing a nonlinear least squares optimization algorithm for multi-parameter joint inversion, taking the parameter value corresponding to the fitting curve with the largest coefficient of determination as the final hydrogeological parameter inversion result. By constructing a coupled model that better conforms to the actual mining disturbance conditions and combining it with an optimization algorithm, the problem of multi-parameter inversion is solved, and the inversion accuracy of hydrogeological parameters of deep karst aquifers under mining disturbance is significantly improved.
Need to check novelty before this filing date? Find Prior Art