複数の石炭層を繰り返し採掘する際の地表沈没法則と予測モデルに関する研究
Shuai Guo1,2, Shouyuan Qiu3,4, Dongjie Zhang1,5
1School of Mining and Coal Engineering, Inner Mongolia University of Science and Technology, BaoTou, 014000, China.
Scientific reports
|September 1, 2025
まとめ
深層の炭鉱では 地面が沈み落ちます この研究は,多層採掘のための予測モデルを開発し,フィールドデータによって検証され,表面埋着のための小さな予測エラーを示しています.
科学分野:
- 地質工学
- 鉱山工学
- 地球科学
背景:
- 世界的な石炭採掘は より深い層にまで広がっています
- 複数の石炭層の重複的な採掘は 表面の沈殿を引き起こします
- この沈没を把握し予測することは 安全性や環境管理に不可欠です
研究 の 目的:
- 複数の石炭層を繰り返し採掘する際の沈落モデルと表面沈落の法則を調査する.
- 多層採掘のシナリオにおける地表沈没の予測モデルを開発・検証する.
- 岩質の行動と採掘の深さを含む地表沈没に影響を与える要因を分析する.
主な方法:
- 鉱山のパラメータと沈没の関係を確立するための理論的分析.
- 層の移動と表面の変形をモデル化する数値シミュレーション
- フィールドモニタリングとモデルの予測との比較
- 確率積分法に基づく予測モデルの開発
主要な成果:
- 断層岩の膨張,石炭層の深さ/厚さ,最大沈みとの間の線形的な関係が見つかりました.
- 表面沈殿盆の大きさは,採掘の深さと線形的に関係しています.
- 数値シミュレーションでは,後期の段階では非対称な分布で,シングルシーム鉱山に似た沈没傾向を示しました.
- 開発された予測モデルは高精度で,フィールド測定と比較して平均誤差は5%以下でした.
結論:
- この研究は,多層採掘における表面沈沈を予測するための検証されたモデルを提供します.
- 理論と数学的発見は 工学的な応用と一致し モデルの合理性を確認しています
- 沈没の正確な予測は達成可能であり,深層の多層採掘に伴うリスクを軽減するのに役立ちます.
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