APD: An automated parameter determination system based on in-situ tests

IF 5.3 1区 工程技术 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS Computers and Geotechnics Pub Date : 2024-10-07 DOI:10.1016/j.compgeo.2024.106799
Islam Marzouk , Ronald Brinkgreve , Arny Lengkeek , Franz Tschuchnigg
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Abstract

In-situ testing has numerous applications in geotechnical engineering. The interpretation of in-situ test results includes soil stratification and determination of soil parameters. This paper presents an automated parameter determination framework that aims to determine constitutive model parameters based on in-situ tests. The ongoing research project relies on a graph-based approach for determining the parameters. The framework has two main attributes: transparency and adaptability. Transparency is achieved by illustrating how a certain parameter was computed. Adaptability is ensured by allowing users to incorporate their expertise into the framework. The system currently determines parameters based on three main workflows that utilize the results of cone penetration tests, dilatometer tests, and shear wave velocity measurements. This study employs the three main workflows to determine soil parameters for one of the Norwegian GeoTest Sites. Additionally, the connection between the parameter determination system and finite element analysis is discussed, where the parameters for the Modified Cam Clay model are evaluated. The framework is valuable in the early stages of projects, providing detailed soil information when soil data is limited. Ongoing research aims to assess the accuracy of the derived soil and constitutive model parameters and to expand the system’s capabilities by including additional in-situ tests.
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APD:基于现场测试的自动参数确定系统
原位测试在岩土工程中应用广泛。对原位测试结果的解释包括土壤分层和土壤参数的确定。本文介绍了一个自动参数确定框架,旨在根据原位测试确定构成模型参数。正在进行的研究项目采用基于图形的方法确定参数。该框架有两个主要属性:透明度和适应性。透明度是通过说明如何计算某个参数来实现的。适应性则是通过允许用户将其专业知识纳入框架来确保的。目前,该系统根据三个主要工作流程确定参数,这三个流程利用了锥入度测试、扩张仪测试和剪切波速度测量的结果。本研究利用这三个主要工作流程来确定挪威一个地质测试点的土壤参数。此外,还讨论了参数确定系统与有限元分析之间的联系,并对修正卡姆粘土模型的参数进行了评估。该框架在项目早期阶段非常有价值,可在土壤数据有限的情况下提供详细的土壤信息。正在进行的研究旨在评估得出的土壤和构成模型参数的准确性,并通过增加原位测试来扩展该系统的功能。
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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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