用先进的机器学习组合来评估地质物理流预测的斜率行为.
Kennedy C Onyelowe1,2, Ahmed M Ebid3, Shadi Hanandeh4
1Department of Civil Engineering, Michael Okpara University of Agriculture, Umudike, 440109, Nigeria. kennedychibuzor@kiu.ac.ug.
Scientific reports
|February 23, 2025
概括
这项研究使用软计算增强了斜率稳定性分析,人工神经网络 (ANN) 在预测安全因子 (FOS) 中超过了其他模型. 数据处理的组方法 (GMDH) 通过其用于手动应用的闭式方程提供了实际优势.
科学领域:
- 地质技术工程 地质技术工程
- 计算智能是一种计算智能.
- 机器学习应用 机器学习应用
背景情况:
- 斜坡稳定性分析在地质工程中至关重要,但受到土壤变异性和昂贵的现场测试的挑战.
- 软计算为模拟坡度稳定提供了一个实用的替代方案,减少了对广泛现场工作的需求.
- 以前的分析受到不切实际的数据输入和缺乏优化的输入参数的阻碍.
研究的目的:
- 研究二级噪声 (CN2),静态梯度下降 (SGD),数据处理组方法 (GMDH) 和人工神经网络 (ANN) 的预测能力,用于斜坡安全因子 (FOS) 预测.
- 通过整理文献数据和使用无维输入参数来完善斜率稳定性分析.
- 确定最有效的软计算模型,用于准确和实用的斜坡稳定性评估.
主要方法:
- 关于斜坡稳定的文献数据被收集,策划和排序,将349条条目减少到296个现实的数据点.
- 输入变量被转换成三个无维参数:C/γ.h,tan (φ) /tan (β) 和 ρ/γ.h.h.
- 评估了CN2,SGD,GMDH和ANN模型的性能,使用了诸如二次误差和 (SSE),平均绝对误差 (MAE),平均二次误差 (MSE),根平均二次误差 (RMSE) 和R平方 (R2) 等指标.
主要成果:
- 人工神经网络 (ANN) 显示出卓越的性能,实现R2为0.946,SSE为62%,MAE为0.27,MSE为0.21.
- 集团数据处理方法 (GMDH) 排名第二,并且独特地为手动斜坡稳定性设计提供了一个封闭式方程.
- 由于数据清理,无维参数化和先进的机器学习技术,精细化的模型显著超过了之前的工作.
结论:
- 基于评估的指标,ANN是最有效的智能模型来预测斜坡安全因素.
- 由于它能够生成封闭式方程,从而促进工程设计中的手动应用,GMDH提供了一个有价值的替代方案.
- 数据策划,无维参数化和选择适当的机器学习算法对于提高斜率稳定性分析准确性至关重要.
相关概念视频
Eulerian and Lagrangian Flow Descriptions
962
Fluid flow analysis is critical in many scientific and engineering disciplines, and two principal approaches are used to describe this flow: the Eulerian and Lagrangian methods. These methods offer different perspectives on monitoring and analyzing the motion of fluids, each with distinct advantages depending on the scenario.
The Eulerian method focuses on fixed points in space where fluid properties, such as velocity, pressure, and temperature, are observed as the fluid moves between these...
The Eulerian method focuses on fixed points in space where fluid properties, such as velocity, pressure, and temperature, are observed as the fluid moves between these...
962
Gradually Varying Flow
30
Gradually varying flow (GVF) in open channels describes situations where water depth changes slowly along the channel due to factors like non-uniform bed slope, channel shape variations, or obstructions. This flow type occurs when the depth adjusts gradually to balance gravitational forces, shear forces, and energy requirements, resulting in a low rate of depth change.Characteristics of Gradually Varying FlowGVF is commonly observed in natural streams, rivers, and canals, where flow depth...
30
Rapidly Varying Flow
45
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
45
Typical Model Studies
299
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
299
Laminar and Turbulent Flow
8.4K
Fluid dynamics is the study of fluids in motion. Velocity vectors are often used to illustrate fluid motion in applications like meteorology. For example, wind—the fluid motion of air in the atmosphere—can be represented by vectors indicating the speed and direction of the wind at any given point on a map. Another method for representing fluid motion is a streamline. A streamline represents the path of a small volume of fluid as it flows. When the flow pattern changes with time, the...
8.4K
Plane Potential Flows
316
Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform...
Uniform...
316


