This evaluation reveals a 31.48% excellence in grouting effectiveness for aquifer reinforcement, suggesting strong reliability in construction assessments.
Scientific evaluation of pre-grouting effectiveness in coal seam floors is crucial for preventing water inrush. This study proposes a quantitative evaluation model based on a combination of the Analytic Hierarchy Process (AHP), the CRITIC method, and the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS). Applied to the Zhaogu No.1 coal mine, the model used five key construction parameters to assess the horizontal pre-grouting project. The results revealed that the grouting effect was 31.48% excellent, 48.48% good, and 20.04% qualified. The model's reliability was validated by its strong consistency with post-grouting field tests, including transient electromagnetic (TEM) surveys, water-level monitoring, and water inflow data. The proposed methodology provides a reliable tool for the quantitative assessment and optimization of floor grouting projects.
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Sang et al. (2025) studied this question.
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