Large-scale Apparatus for Monotonic and Cyclic Soil-Structure Interface Test

Suits, L David; Sheahan, TC; Zhang, G; Zhang, Junmei

doi:10.1520/gtj100225

Cited by 35 publications

(2 citation statements)

References 11 publications

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“…Although the phenomenon of soil-structure-interface internal erosion has been noticed, existing studies have concentrated on the investigations of internal erosion by assuming homogeneous materials, while ignoring the more vulnerable soil-structure-interface internal erosion in realistic cases. [16][17][18][19]. The failure mechanism of interface internal erosion can be more complex and dangerous due to the interaction with the internal affiliated structures [20,21].…”

Section: Introductionmentioning

confidence: 99%

Critical Hydraulic Gradient of Internal Erosion at the Soil–Structure Interface

et al. 2018

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Internal erosion at soil-structure interfaces is a dangerous failure pattern in earth-fill water-retaining structures. However, existing studies concentrate on the investigations of internal erosion by assuming homogeneous materials, while ignoring the vulnerable soil-structure-interface internal erosion in realistic cases. Therefore, orthogonal and single-factor tests are carried out with a newly designed apparatus to investigate the critical hydraulic gradient of internal erosion on soil-structure interfaces. The main conclusions can be draw as follows: (1) the impact order of the three factors is: degree of compaction > roughness > clay content; (2) the critical hydraulic gradient increases as the degree of compaction and clay content increases. This effect is found to be more obvious in the higher range of the degree of soil compaction and clay content. However, there exists an optimum interface roughness making the antiseepage strength at the interface reach a maximum;(3) the evolution of the interface internal erosion develops from inside to outside along the interface, and the soil particles at the interface flow as a whole; and (4) the critical hydraulic gradient of interface internal erosion is related to the shear strength at the interface and the severity and porosity of the soil.

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Section: Introductionmentioning

confidence: 99%

Critical Hydraulic Gradient of Internal Erosion at the Soil–Structure Interface

et al. 2018

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“…The findings seem to demonstrate the concrete panel is much stiffer than the rockfill body, which leads to myriad problems in compatibility and deformation of the two. The foremost problems are the facts that a large or uneven settlement under load appears in the dam [4,5]. A challenging problem that arises in this domain is that large settlements can cause cracks in the concrete panel and damage the water stop, which then affects the dam safety [6,7].…”

Section: Introductionmentioning

confidence: 99%

Settlement Prediction for Concrete Face Rockfill Dams Considering Major Factor Mining Based on the HHO-VMD-LSTM-SVR Model

Zheng,

Ren,

et al. 2024

Water

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Some important discoveries have been revealed in some studies, including that the settlement of concrete face rockfill dams (CFRDs) may cause cracks in the concrete face slabs, which may lead to dam collapse. Therefore, deformation behavior prediction of CFRDs is a longstanding and emerging aspect of dam safety monitoring. This paper aims to propose a settlement prediction model for CFRDs combining the variational mode decomposition (VMD) algorithm, long short-term memory (LSTM) network, and support vector regression algorithm (SVR). Firstly, VMD is applied in the decomposition of dam settlement monitoring data to reduce its complexity. Furthermore, feature information on settlement time series is extracted. Secondly, the LSTM and SVR are optimized by the Harris hawks optimization (HHO) algorithm and modified least square (PLS) method to mine the major influencing factors and establish the prediction model with higher precision. Finally, the proposed model and other models are applied to predict the deformation behavior of the Yixing CFRD. Prediction results indicate that the proposed method possesses particular advantages over other models. The proposed VMD-LSTM-SVR model might help to evaluate the settlement trends and safety states of CFRDs.

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Research and practice of key technologies for landslide dam development and utilization—A case in Hongshiyan landslide Dam Water Conservancy Project

Zhang

Xiao³

et al. 2023

River

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Based on the emergency rescue, the subsequent disposal, and the development and utilization projects of the Hongshiyan Landside Dam in Ludian, Yunnan, China, research has been conducted on key technical issues facing the development and utilization of landside dams, including the possibilty evaluation of development and utilization, structure analysis of wide gradation material, performance evaluation, investigation and design, dam seepage control, construction technology and equipment, and safe operation assessment. And innovative results has made in all seven aspects mentioned above, writing the history in this field. The achievements were directly applied to the development planning, investigation and design, construction, and operation and maintenance of the Hongshiyan Landside Dam, a comprehensive water conservancy project that integrates flood control, water supply, irrigation, and power generation, with significant comprehensive benefits.

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Large-scale Apparatus for Monotonic and Cyclic Soil-Structure Interface Test

Cited by 35 publications

References 11 publications

Critical Hydraulic Gradient of Internal Erosion at the Soil–Structure Interface

Critical Hydraulic Gradient of Internal Erosion at the Soil–Structure Interface

Settlement Prediction for Concrete Face Rockfill Dams Considering Major Factor Mining Based on the HHO-VMD-LSTM-SVR Model

Research and practice of key technologies for landslide dam development and utilization—A case in Hongshiyan landslide Dam Water Conservancy Project

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