加速度
岩土工程
流离失所(心理学)
安全系数
产量(工程)
理论(学习稳定性)
安全系数
边坡稳定性
结构工程
地质学
工程类
计算机科学
材料科学
经典力学
机器学习
物理
冶金
心理治疗师
心理学
作者
Mao‐Xin Wang,Yat Fai Leung,Dianqing Li
标识
DOI:10.1139/cgj-2024-0106
摘要
As two well-recognized approaches for seismic slope stability assessment, the pseudo-static analysis estimates the factor of safety (FS) and the Newmark-type analysis estimates permanent downslope-displacement based on input yield acceleration (ky). However, FS and ky are usually obtained from non-trivial slope stability calculations, which can become computationally demanding in probabilistic analyses or regional landslide mapping. This study presents neural network-assisted predictive models for (1) seismic or static FS and the category of failure mode; and (2) ky and the thickness of failure mass. Extensive stability analyses of more than 741,000 and 123,000 slope configurations are conducted to compile datasets of FS and ky, respectively. Performance evaluations indicate that the models produce physically reasonable prediction trends and have good generalization capability with correlation coefficient higher than 0.94 in blind tests. Compared to the existing infinite slope model and predictive tools, the new models achieve improved applicability and functionality, accounting for pore-water pressure, depth to hard stratum, and various failure modes. Both the spreadsheet and MATLAB files established in this study are provided to facilitate generic applications. Therefore, this work not only demonstrates the neural network capability, but also provides useful tools for practitioners, contributing to both the pseudo-static and Newmark-type approaches.
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