Continuous working face separation layer water disaster evaluation method

CN120429690APending Publication Date: 2025-08-05YANKUANG ENERGY GRP CO LTD +1
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Patent Information

Application Number
CN202510519883.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2025-08-05

AI Technical Summary

Technical Problem

The prior art has problems such as poor adaptability, excessive model simplification and single risk assessment in the evaluation of destratigraphic water damage on the continuous working face, resulting in large errors in the prediction of destratigraphic development and high misjudgment rate.

Method used

Multi-source geological data acquisition and rock-covered structure analysis were used to establish a ‘hard-soft-hard’ lithologic combination model, dynamic measurement of the height of the water conduction fracture zone and outstratigraphic mechanical model of the rock-covered rock, stability analysis was performed in combination with Winkler elastic foundation thin plate model, and multi-factor risk evaluation and mining plan optimization were performed through the fuzzy comprehensive evaluation method.

Benefits of technology

It improves the accuracy of off-stratum water damage evaluation, reduces prevention and control costs, enhances safety, accurately identify high-risk areas and optimizes mining plans.

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Abstract

The invention discloses a continuous working face separation layer water disaster evaluation method, and relates to the field of mine safety and disaster prevention and control. Comprising the following steps: collecting multi-source geological data and analyzing an overlying strata structure; the method comprises the following steps: dividing an overlying strata key layer and a weak intercalated layer according to the content of basic geological data and field actual measurement data, establishing a hard-soft-hard lithologic combination model, and calculating equivalent stiffness; dynamically measuring the height of the water guide crack zone, and respectively measuring a single working face and dynamically correcting a continuous working face; and carrying out mechanical modeling and stability analysis on overlying strata separation, establishing a Winkler elastic foundation thin plate model, and judging the stability of the separation. According to the method, the problem of the development height of the water-conducting fissure zone under the influence of continuous surface mining is solved, and the danger of continuous surface roof separation layer water damage is analyzed on the basis of reduction of a water-resisting layer on the lower portion of the separation layer due to rising of the water-conducting fissure zone.
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