分析数据集,以确定深道的挤压潜力
Ferlien Margareth Mareyke Mombilia1, Simon Heru Prassetyo1, Yudhidya Wicaksana1
1Mining Engineering Study Program, Institut Teknologi Bandung, Bandung, Indonesia.
Data in brief
|July 18, 2025
概括
本研究介绍了一种使用历史应变数据和地面反应曲线 (GRC) 来确定深道最佳支压力的方法. 通过分析各种岩石状况,它提供了一个图表,以防止挤压不稳定.
科学领域:
- 地质技术工程 地质技术工程
- 道工程工程 道工程
- 岩石机械学 岩石机械学
背景情况:
- 在高现场应力条件下的深度道挖掘可能会导致挤压,这是一个不稳定的现象.
- 历史道应变数据为融合行为提供了有价值的见解.
- 了解岩石质量的特性对于预测道稳定性至关重要.
研究的目的:
- 开发一个数据集的历史应变数据从深道建设.
- 用地面反应曲线 (GRC) 分析确定所需的支压力,以减轻压缩潜力.
- 建立一个图形方法,在不同的岩石质量条件下选择最低支压力.
主要方法:
- 基于观察到的道收百分比的历史道应变数据的分类.
- 在各种道半径,深度,单轴压力强度和地质强度指数 (GSI) 值中开发和分析了480个地面反应曲线 (GRC).
- 使用内部压力与现场应力 (p_i/p_o),应变 (%ε) 和稳定性因子 (σ_cm/p_o) 的比率来估计支能力.
主要成果:
- 应变 (%ε) 和稳定因子 (σ_cm/p_o) 根据得到的p_i/p_o比率 (0-0.9) 进行分类.
- 在不同的地质和几何条件下,对5280个计算进行了全面分析.
- 为了确定特定岩石质量类别避免挤压所需的最小p_i/p_o,生成了一个图表.
结论:
- 该研究提供了一种数据驱动的方法,用于评估和管理深道中的挤压风险.
- 开发的基于GRC的方法和图形工具有助于优化支压力设计.
- 这项研究通过解决不稳定性问题,为更安全,更有效的深道建设做出了贡献.
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