既存の地下パイプラインと電力トンネルにおける大断面準長方形のシールド構造の変形分析
Shi-Ju Ma1,2,3,4, Kai-Rong Hong5,6, Yang-Kai Zhang7,8
1School of civil engineering, Zhengzhou University of Technology, Zhengzhou, Henan, 450044, China. mashiju2010@126.com.
Scientific reports
|August 26, 2025
まとめ
水分豊富な土壌に準長方形のシールドトンネルを掘り下げると,土壌のストレス再分配により地下パイプラインと電力トンネルが変形します. これらの影響を理解することは,類似のメトロプロジェクトにおける効果的な変形制御に不可欠です.
科学分野:
- 地工学
- トンネル工学
- 都市インフラ
背景:
- 大面積の準長方形のシールドトンネルは,都市環境でユニークな課題を提示します.
- 水が豊富な砂層の建設は,既存の地下水道へのリスクを悪化させる.
研究 の 目的:
- 準長方形のシールドの建設中の地下パイプラインと電力トンネルの変形特性を分析する.
- 変形に影響を与える要因を特定し,制御技術を探求する.
主な方法:
- シールドトンネルの時における変形の現場の監視.
- 土壌のストレス再分配とその影響の体系的な分析
- パイプラインと電力トンネルの変形モードの比較分析.
主要な成果:
- シールドトンネルは土壌の重圧の再分配を誘導し,近くの地下構造に様々な変形を引き起こします.
- パイプラインと電源トンネルの変形は,機能,構造,材料,深さ,シールドの近さなどの要因に影響されます.
- パワー・トンネルの変形パターンはパイプラインとは異なり,建設パラメータに敏感です.
結論:
- 準長方形のシールドトンネルは,既存の地下インフラへの影響を慎重に検討する必要があります.
- 効果的な変形制御戦略は,水豊富な環境でのリスクを軽減するために不可欠です.
- この発見は,同様のトンネル掘削プロジェクトを計画し,実行するための貴重な指針を提供します.
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