在高和的斜坡上分析塔柱不稳定的岩石质量的频率响应稳定性和可靠性
Fuchuan Zhou1,2, Xinrong Liu3, Hongmei Tang4
1School of Civil Engineering, Chongqing University, 174 Shazheng Street, Shapingba District, Chongqing, 400045, China.
Scientific reports
|September 1, 2024
概括
本研究引入了一种使用可靠性理论评估TCURM (地下快速挖掘方法) 的稳定性的新方法. 这些发现为山区TCURM的监测和预警系统提供了基础.
科学领域:
- 地质技术工程 地质技术工程
- 岩石机械学 岩石机械学
- 土木工程 土木工程是指土木工程.
背景情况:
- 地下快速挖掘方法 (TCURM) 的稳定性对于山区的安全至关重要.
- 现有的方法可能无法完全捕捉TCURM不稳定的概率性质.
- 评估不稳定性概率和可靠性对于预防灾害至关重要.
研究的目的:
- 为TCURM提出一种新的频率响应稳定性和可靠性分析方法.
- 用可靠性理论评估TCURM的不稳定性概率和稳定性.
- 为TCURM提供动态监测和预警系统的理论基础.
主要方法:
- 引入第一阶段的第二时刻检查点方法,用于不稳定性概率评估.
- 频率响应稳定性计算与可靠性结果的比较.
- 使用实验室和实地调查数据进行稳定性评估的可靠性理论的应用.
- 在中国重庆的Zengziyan W12#不稳定的岩石群的案例研究.
主要成果:
- 动态和地质指数随着恶化区域的刚度下降而下降.
- 对于TCURM的失败概率为80.3% (自然条件,不稳定) 和96.27% (和条件,不稳定).
- 可靠性评估结果与频率响应稳定性分析的结论一致.
结论:
- 提出的方法有效地评估了TCURM的稳定性和不稳定性概率.
- 这些发现支持开发TCURM的动态监测和早期预警指标.
- 这项研究有助于预防和减轻山区灾害的战略.
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