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对深层基础坑的ANN变形预测模型,考虑到降雨的影响
Xing Wei1, Shitao Cheng2, Rui Chen3
1Department of Geotechnical Engineering, School of Civil Engineering, Southwest Jiaotong University, Chengdu, 610031, China. weixinghl@163.com.
Scientific reports
|December 19, 2023
概括
这项研究引入了一种先进的人工神经网络 (ANN) 模型,用于预测深层基础坑变形,这对于在暴雨期间早期风险警告至关重要. 该模型准确预测潜在的故障,提高了复杂的土壤-水结构相互作用的安全性.
科学领域:
- 地质技术工程 地质技术工程
- 土木工程 土木工程是指土木工程.
- 计算力学 计算力学 计算力学
背景情况:
- 由于复杂的土壤-水结构相互作用,深层基础坑面临高故障风险,特别是在大雨期间.
- 在这种情况下,准确的变形预测对于风险预警系统至关重要.
研究的目的:
- 提出和验证人工神经网络 (ANN) 模型,用于预测深层基础坑变形.
- 提高基础坑稳定性早期风险预警的准确性和可靠性.
主要方法:
- 使用波变换 (WT) 将总变形分解为低频和高频组件.
- 使用卷积神经网络 (CNN) 和长期短期记忆神经网络 (LSTM) 进行滚动训练,预测分解的组件.
- 对CNN和LSTM的输入变量的优化,基于Copula方法与降雨和其他随机变量的相关性分析.
- 通过总和预测的组件来重建总变形预测.
主要成果:
- 拟议的ANN模型在一个案例研究深层基础坑中,证明了对水平变形的高预测准确性.
- 该模型有效地识别了不同类型的变形趋势 (不稳定,不稳定,稳定).
- 准确和及时的风险警告是可以通过最小的输入变量集实现的.
结论:
- 集成的WT-CNN-LSTM模型为预测深层基础坑变形提供了强大的方法.
- 该方法为早期风险评估和预警提供了可靠的工具,提高了土木工程项目的安全性.
- 该模型处理复杂的土壤-水结构相互作用和降雨影响的能力是一个显著的进步.
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