Global sensitivity analysis of the deformation behavior of sluice chamber structure

Liang, Jiaming; Li, Zhanchao; Ji, Qingfeng; Lü, Wenpeng; Cao, Qingjie; Ahmed, E. Elbanna

doi:10.1016/j.istruc.2021.10.072

Cited by 4 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Referring to the statistical model of dam deformation, the influencing factors of sluice deformation δ can be divided into three parts, including water pressure component δ H , temperature component δ T , and aging component δ θ , as shown in Equation (1).…”

Section: Influencing Factors Of Sluice Displacementmentioning

confidence: 99%

“…The sluice is a common hydraulic structure that plays a very important role in controlling flooding, reducing disaster, optimizing water resource allocation, and protecting the ecological environment [1,2]. During service periods, the sluice's safety will be threatened by multiple risks such as external loads and emergencies, and it is necessary to grasp the work state of the project through structural safety evaluation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Deformation Analysis Method for Sluice Structure Based on Panel Data

Ma,

Lou,

Shen

et al. 2024

Water

View full text Add to dashboard Cite

Deformation, as the most intuitive index, can reflect the operation status of hydraulic structures comprehensively, and reasonable analysis of deformation behavior has important guiding significance for structural long-term service. Currently, the health evaluation of dam deformation behavior has attracted widespread attention and extensive research from scholars due to its great importance. However, given that the sluice is a low-head hydraulic structure, the consequences of its failure are easily overlooked without sufficient attention. While the influencing factors of the sluice’s deformation are almost identical to those of a concrete dam, nonuniform deformation is the key issue in the sluice’s case because of the uneven property of the external load and soil foundation, and referencing the traditional deformation statistical model of a concrete dam cannot directly represent the nonuniform deformation behavior of a sluice. In this paper, we assume that the deformation at various positions of the sluice consist of both overall and individual effects, where overall effect values describe the deformation response trend of the sluice structure under external loads, and individual effect values represent the degree to which the deformation of a single point deviates from the overall deformation. Then, the random coefficient model of panel data is introduced into the analysis of sluice deformation to handle the unobservable overall and individual effects. Furthermore, the maximum entropy principle is applied, both to approximate the probability distribution function of individual effect extreme values and to determine the early warning indicators, completing the assessment and analysis of the nonuniform deformation state. Finally, taking a project as an example, we show that the method proposed can effectively identify the overall deformation trend of the sluice and the deviation degree of each measuring point from the overall deformation, which provides a novel approach for sluice deformation behavior research.

show abstract

Section: Influencing Factors Of Sluice Displacementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%