SchemaGAN: A conditional Generative Adversarial Network for geotechnical subsurface schematisation

IF 5.3 1区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
F.A. Campos Montero , B. Zuada Coelho , E. Smyrniou , R. Taormina , P.J. Vardon
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引用次数: 0

Abstract

Subsurface schematisations are a crucial geotechnical problem which generally consists of filling substantial gaps in subsurface information from the limited site investigation data available and relying heavily on the engineer’s experience and occasionally geostatistical tools. To address this, schemaGAN, a conditional Generative Adversarial Network (GAN) to generate geotechnical subsurface schematisations from site investigation data is introduced. This novel method can learn complex underlying rules that govern the subsurface geometries and anisotropy from a big database of training cross-sections, and can produce subsurface schematisations from Cone Penetration Tests (CPT) in an insignificant timeframe. To test and demonstrate the performance of schemaGAN, a database of 24,000 synthetic geotechnical cross-sections with their corresponding CPT data was created, including spatial variability and gradually spatially varying layers. After training, the effectiveness of schemaGAN was compared against several interpolation methods, and it is seen that schemaGAN outperforms all other methods, with results characterised by clear layer boundaries and an accurate representation of anisotropy within the layers. SchemaGAN’s superior performance was confirmed through a blind survey, and in two real case studies in the Netherlands, where the model demonstrates better predictive accuracy for known CPT data.
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来源期刊
Computers and Geotechnics
Computers and Geotechnics 地学-地球科学综合
CiteScore
9.10
自引率
15.10%
发文量
438
审稿时长
45 days
期刊介绍: The use of computers is firmly established in geotechnical engineering and continues to grow rapidly in both engineering practice and academe. The development of advanced numerical techniques and constitutive modeling, in conjunction with rapid developments in computer hardware, enables problems to be tackled that were unthinkable even a few years ago. Computers and Geotechnics provides an up-to-date reference for engineers and researchers engaged in computer aided analysis and research in geotechnical engineering. The journal is intended for an expeditious dissemination of advanced computer applications across a broad range of geotechnical topics. Contributions on advances in numerical algorithms, computer implementation of new constitutive models and probabilistic methods are especially encouraged.
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