Numerical investigation of seismically induced crest settlement of earth dams

Shakarami, Leila; Javdanian, Hamed; Sanayei, Hamed Reza Zarif; Shams, Gholamreza

doi:10.1007/s40808-019-00624-9

Cited by 15 publications

(1 citation statement)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Concrete-face rockfill dams have gradually become the preferred dam type in the engineering community owing to their safety, affordability, and applicability in complex terrain and climatic conditions [1][2][3]. The construction height of concrete-face rockfill dams has exceeded 240 m and is increasing towards 300 m [4][5][6]. As the only anti-seepage structure in such dams, the structural safety and integrity of the concrete-face slab are extremely important [7,8].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Static and Dynamic Analyses of an Embedded Concrete-Face Rockfill Dam

Qu,

Chai,

2023

Water

View full text Add to dashboard Cite

Concrete-face rockfill dams have gradually become the preferred dam type in the engineering community. This study presents a hydropower station in China as a case study to introduce a new type of embedded concrete-face rockfill dam. The static and dynamic stress–strain characteristics of the proposed and conventional concrete-face rockfill dams were compared, and the optimal height of the embedded concrete body at the hydropower station was determined. The results indicate that, under static conditions, the embedded concrete body could reduce deformation upstream and downstream of the rockfill body, eliminate tensile stress along the concrete-face slab slope, reduce concrete-face slab deflection, and increase the maximum deflection area to 0.47 times the dam height. The inhibitory effect of the embedded concrete body on the stress and strain of the dam body became more evident as the size of the embedded body increased. Although the embedded concrete body did not enhance the dynamic and superposed static–dynamic stress states of the embedded concrete body and rockfill, the stress and strain increase in the dynamic state were within a controllable range. Through a sensitivity analysis and considering the terrain conditions and engineering cost of the hydropower station, the height of the embedded concrete body is recommended to be 0.4 times the dam height.

show abstract

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Static and Dynamic Analyses of an Embedded Concrete-Face Rockfill Dam

Qu,

Chai,

2023

Water

View full text Add to dashboard Cite

show abstract

Assessment of earthquake-induced slope deformation of earth dams using soft computing techniques

Javdanian

Pradhan

2018

Landslides

Self Cite

View full text Add to dashboard Cite

Evaluating behavior of earth dams under dynamic loads is one of the most important problems associated with the initial design of such massive structures. This study focuses on prediction of deformation of earth dams due to earthquake shaking. A total number of 103 real cases of deformation in earth dams due to earthquakes that has occurred over the past years were gathered and analyzed. Using soft computing methods, including feed-forward back-propagation and radial basis function based neural networks; two models were developed to predict slope deformations in earth dams under variant earthquake shaking. Earthquake magnitude (Mw), yield acceleration ratio (ay/amax), and fundamental period ratio (Td/Tp) were considered as the most important factors contributing to the level of deformation in earth dams. Subsequently, a sensitivity analysis was conducted to assess the performance of proposed model under various conditions. Finally, the accuracy of the developed soft computing model was compared with the conventional relationships and models to estimate seismic deformations of earth dams. The results demonstrate 2 that the developed neural model can provide accurate predictions in comparison to the available practical charts and recommendations.

show abstract

Assessment of steady-state seepage through dams with nonsymmetric boundary conditions: analytical approach

Sanayei

Javdanian

2019

Environ Monit Assess

View full text Add to dashboard Cite

Numerical investigation of seismically induced crest settlement of earth dams

Cited by 15 publications

References 31 publications

Three-Dimensional Static and Dynamic Analyses of an Embedded Concrete-Face Rockfill Dam

Three-Dimensional Static and Dynamic Analyses of an Embedded Concrete-Face Rockfill Dam

Assessment of earthquake-induced slope deformation of earth dams using soft computing techniques

Assessment of steady-state seepage through dams with nonsymmetric boundary conditions: analytical approach

Contact Info

Product

Resources

About