周期的な負荷と下荷の下,異なる角度での並列の割れ目溝の砂岩の機械的および破裂特性に関する研究
Yi Enbing1,2
1China Coal Technology Engineering Group Chongqing Research Institute, Chongqing, 400037, China. yienbing95@163.com.
Scientific reports
|February 18, 2026
まとめ
平行スロットシームの角度は,砂岩に大きく影響する.
科学分野:
- ジオテクニカルエンジニアリング ジオテクニカルエンジニアリング
- ロック・メカニクス ロック・メカニクス
- マテリアルサイエンス 材料科学
背景:
- 周期的負荷下での砂岩の振る舞いを理解することは,鉱山と土木工学にとって非常に重要です.
- スロットシームのような内部構造特性の岩石力学への影響は完全に理解されていません.
研究 の 目的:
- 平行スロットシームの分布角度が砂岩の機械的特性,エネルギー消耗,周期的負荷下での断片化にどのように影響するか調査する.
- エンジニアリングアプリケーションのための最適なスロットシーム角度を決定するために.
主な方法:
- 0°から90°までの角 (α) に並行したプレファブリックスロットシームを備えた砂岩の標本には,段階的な周期的な積み荷と卸荷が行われました.
- 分析には,機械的特性,エネルギー分散,断片化パターン,および故障モードが含まれていました.
主要な成果:
- ピーク故障ストレスとサイクルの数は,角度 α によって変化し,最小サイクルは α = 45° でした.
- 砂岩の弾性モジュールは周期とともに増加し,ピーク/バレーの緊張はα=0°で最大であった.
- エネルギー消耗はα=45°で最も低く,これは故障モードとクラック浸透への移行も示した.
結論:
- 平行スロットシームの角度は,砂岩の機械的反応と故障特性に大きく影響します.
- 45°の角度は,変形とエネルギー消耗の減少を伴う制御された故障に最適なように見える.
- この発見は,エンジニアリングプロジェクトにおける屋根のスロット処理の最適化にとって重要である.
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