气候变化领域集成服务门户(CCPortal): Developing a two-step improved damage creep constitutive model based on soft rock saturation-loss cycle triaxial creep test

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DOI	10.1007/s11069-021-04779-6
	Developing a two-step improved damage creep constitutive model based on soft rock saturation-loss cycle triaxial creep test
	Li A.; Deng H.; Zhang H.; Jiang M.; Liu H.; Xiao Y.; Wen J.
发表日期	2021
ISSN	0921030X
起始页码	2265
结束页码	2281
卷号	108 期号:2
英文摘要	The study of the time-dependent deformation behavior of soft rock under water–rock interaction is of great significance to reveal slope creep deformation behavior. In this study, the saturation-loss cycle's triaxial creep test was performed, and the creep deformation, creep rate, and long-term strength of silty mudstone were analyzed. A two-step improved modeling method was also proposed. Firstly, by introducing fractional Abel viscous pot and aging factor, a one-dimensional creep constitutive model was established based on the Burgers model. And then the three-dimensional creep damage constitutive was derived through Laplace transform. Finally, the Levenberg–Marquardt (L–M) algorithm method was used to identify the creep curve and calibrate the model parameters. The new constitutive model could reflect the soft rock's creep characteristics during saturation-loss cycle. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Creep damage constitutive model Fractional calculus theory Soft rock Triaxial creep test
英文关键词	calibration; creep; damage; deformation; numerical model; one-dimensional modeling; saturation; soft rock; triaxial test; water-rock interaction
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206356
作者单位	State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China; China Southwest Geotechnical Investigation and Design Institute Corporation, Chengdu, 610059, China
推荐引用方式 GB/T 7714	Li A.,Deng H.,Zhang H.,et al. Developing a two-step improved damage creep constitutive model based on soft rock saturation-loss cycle triaxial creep test[J],2021,108(2).
APA	Li A..,Deng H..,Zhang H..,Jiang M..,Liu H..,...&Wen J..(2021).Developing a two-step improved damage creep constitutive model based on soft rock saturation-loss cycle triaxial creep test.Natural Hazards,108(2).
MLA	Li A.,et al."Developing a two-step improved damage creep constitutive model based on soft rock saturation-loss cycle triaxial creep test".Natural Hazards 108.2(2021).