Results 21 to 30 of about 965,338 (266)
Numerical modeling of earthen dam breach due to piping failure
Water Science and Engineering, 2019 Based on model tests of earthen dam breach due to piping failure, a numerical model was developed. A key difference from previous research is the assumption that the cross-section of the pipe channel is an arch, with a rectangle at the bottom and a ...
Sheng-shui Chen +2 more
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Experimental study on effects of gradation on strength and deformation of coarse-grained soil
Yantu gongcheng xuebao, 2017 Eight large-scale triaxial tests on coarse-grained soil with different lithologies are carried out. The effects of gradation on strength, deformation, dilatancy and particle breakage characteristics of coarse-grained soil are discussed.
LING Hua 1,2, FU Hua 1,2, HAN Hua-qiang 1,2
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Evaluation of safety performance of extremely high slab-faced gravel dams
Yantu gongcheng xuebao, 2017 The structural safety performance of Dashixia concrete face gravel dam (CFGD), an extremely high CFGD in Xinjiang, is studied based on the large-scale triaxial experiments on dam materials and the detailed finite element method-based numerical analyses ...
CHEN Sheng-shui 1,2, YAN Zhi-kun 1, FU Zhong-zhi 1,2, LI Guo-ying 1,2
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Plastic strain directions of rockfill materials during loading and creeping
Yantu gongcheng xuebao, 2018 The determination of the incremental plastic strain direction (IPSD) is one of the kernels in elastoplastic constitutive models. It is generally assume that the IPSD depends only on the stress states and is not influenced by the stress increments.
FU Zhong-zhi 1, 2, CHEN Sheng-shui 1, 2, ZHANG Yi-jiang 1, SHI Bei-xiao 1
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Simulation method for crest cracks in high earth core rockfill dams and its application
Yantu gongcheng xuebao, 2020 The crest cracks are the common dangers during construction and operation of high earth core rockfill (ECRD) dams. The occurrence and propagation of the crack increases the safety risk of the project greatly.
JI En-yue 1, 2, CHEN Sheng-shui 1, 2, FU Zhong-zhi 1, 2, ZHANG Can-hong 3
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Mathematical model for breach of tailings dam due to overtopping and its application
Yantu gongcheng xuebao, 2017 Based on the non-equilibrium continuous equation and momentum equation for water-sand mixture, considering the impact on the variation of sand volume concentration due to the change of breach slope and bed, a mathematical model is established to describe
DENG Zhao 1, CHEN Sheng-shui 1, 2, ZHONG Qi-ming 1, 2
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Impact of Metastatic Patterns on Survival and Response to Therapy in Neuroblastoma
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background While the presence of metastases in neuroblastoma (NB) is a well‐established prognostic factor, the clinical significance of dissemination patterns and tumour burden and their impact on response and survival remains poorly understood.
Mariona Morell‐Daniel +15 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Pediatric cancer remains a leading cause of morbidity and mortality worldwide, particularly in low‐and middle‐income countries. Cancer treatment may impair nutritional status, alter body composition, and exacerbate cancer‐related fatigue (CRF).
Luís Carlos Lopes‐Junior +11 more
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Elastoplastic model for cemented coarse-grained materials and its application
Yantu gongcheng xuebao, 2019 Until now, the engineers still doubt about whether the cemented coarse-grained soils can be used in permanent structures such as high rockfill dams. It is mainly due to the fact that the studies on the mechanical properties of the cemented coarse-grained
WEI Kuang-min 1,2, CHEN Sheng-shui 1,2, LI Guo-ying 1,2, MI Zhan-kuan 1,2, LIN Hua 1,2
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A mechanism of failure in shear bands [PDF]
Extreme Mechanics Letters, 2018 We have carried out dilatant plasticity simulations to investigate the process of failure inside a shear band. The constitutive model accounts for possibly inhomogeneous flow within the band, void rotation and void elongation. We found that the material in the band may soften with no increase in the void volume fraction.
Mohammad E. Torki, Ahmed Amine Benzerga
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