Determination of geomaterial mechanical parameters based on back analysis and reduced-order model

doi:10.1016/j.compgeo.2021.104013

	Determination of geomaterial mechanical parameters based on back analysis and reduced-order model
	Zhao, Hongbo 1; Chen, Bingrui 2; Li, Shaojun 2
刊名	COMPUTERS AND GEOTECHNICS
	2021-04-01
卷号	132 页码:13
关键词	Geomechanics Geomaterial Back analysis Reduced-order model Simple homology global optimization
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2021.104013
英文摘要	The back analysis method is widely used in geotechnical and geological engineering to guide construction and assure safety through feedback analysis and dynamic design. In this study, a back analysis framework was developed by combining a reduced-order model (ROM), simplicial homology global optimization (SHGO), and a numerical model. The ROM was used to approximate the response of the geotechnical structure. Moreover, SHGO was regarded as an optimization method for investigating the mechanical and strength properties of geomaterials based on the ROM using the developed framework. The developed framework was then verified and illustrated by application to a circular rock tunnel. The determined parameters of the rock mass were in excellent agreement with the actual values, and the deformation law predicted by the developed method was consistent with the analytical solution in the tunnel. These results demonstrate that the developed method is feasible for geotechnical and geological engineering. Further, the new framework was applied to a practical slope project. The results indicate that the proposed method is practical, accurate, and convenient when used to determine the geomaterials mechanical properties based on monitored information. Thus, our method is a promising tool for back analysis in practical geotechnical and geological engineering applications.
资助项目	Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[Z020006] ; National Natural Science Foundation of China[U1765206]
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000632454900002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/25988]
专题	中科院武汉岩土力学所
通讯作者	Zhao, Hongbo
作者单位	1.Shandong Univ Technol, Sch Civil & Architectural Engn, Zibo 255000, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Hongbo,Chen, Bingrui,Li, Shaojun. Determination of geomaterial mechanical parameters based on back analysis and reduced-order model[J]. COMPUTERS AND GEOTECHNICS,2021,132:13.
APA	Zhao, Hongbo,Chen, Bingrui,&Li, Shaojun.(2021).Determination of geomaterial mechanical parameters based on back analysis and reduced-order model.COMPUTERS AND GEOTECHNICS,132,13.
MLA	Zhao, Hongbo,et al."Determination of geomaterial mechanical parameters based on back analysis and reduced-order model".COMPUTERS AND GEOTECHNICS 132(2021):13.