NDLI: Deformation Monitoring Indexes of High Concrete Arch Dam Considering Time-varying Effect

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Deformation Monitoring Indexes of High Concrete Arch Dam Considering Time-varying Effect

Content Provider	Scilit
Author	Wang, Shao Wei Xu, Yingli Xia, Qun Hu, Kun
Copyright Year	2019
Description	Journal: Iop Conference Series: Earth and Environmental Science Deformation is the most intuitive reflection of comprehensive behavior of concrete dams, and it is of great significance to determine the deformation monitoring indexes for dam abnormality identifying. In this paper, deformation monitoring indexes of arch dam were determined in the form of causal components, and the time-varying effect caused by the degradation of dam material properties was considered. The hydraulic component in monitoring index was determined into three grades by water density overloading method, and the appearances of dam heel yield depth coming up to the curtain axis, the catastrophes of dam body yield volume ratio and dam radial displacement, were respectively taken as the abnormal symbols. The temperature component was determined for two operation conditions, with respect to the measured high and low temperature periods. As for the time effect component, it was initially calculated by FEM with the environmental damage-considered rheological constitutive models, and fitted by the combination of exponential function and periodic function. A case study was performed to give more detailed introductions for determining the proposed deformation monitoring indexes. Research results show that the components of temperature and time-effect occupy a large proportion in monitoring index of arch dams.
Related Links	https://iopscience.iop.org/article/10.1088/1755-1315/304/2/022005/pdf
ISSN	17551307
e-ISSN	17551315
DOI	10.1088/1755-1315/304/2/022005
Journal	Iop Conference Series: Earth and Environmental Science
Issue Number	2
Volume Number	304
Language	English
Publisher	IOP Publishing
Publisher Date	2019-09-01
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Earth and Environmental Science Geological Engineering Characterization and Testing of Materials Deformation Monitoring Indexes
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Physics and Astronomy Environmental Science

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