Results 21 to 30 of about 1,764 (244)

System dynamic reliability evaluation of multiple failure modes of earth dams subjected to strong earthquake excitation

open access: yesSoils and Foundations, 2023
An earth dam in service is a complex system that has different dynamic failure modes under different ground motion excitations with a certain correlation between the different failure modes.
Min Xiong, Wenwen Wang, Yu Huang
doaj   +1 more source

Review on overtopping failure and flood evolution of earth-rock dams

open access: yesShui kexue jinzhan, 2020
Flood events caused by the overtopping failure of earth-rock dams often lead to catastrophic disasters. Therefore, examining the cause of the dam failure and studying the subsequent flood evolution processes are extremely important for disaster ...
Jianyin ZHOU   +4 more
doaj   +1 more source

Study on safety of a high earth-core rockfill dam considering contact effect between dam and foundation

open access: yesShuili Shuiyun Gongcheng Xuebao, 2019
With a traditional method to calculate the stress and deformation of earth-rock dam, the contact effect between the dam and the bedrock is neglected, which is not consistent with the actual condition.
LI Guoying   +3 more
doaj   +1 more source

Mechanical Properties and Damming Behaviors of Gravelly Solidified Soil for Earth-Rock Dam Core Wall

open access: yesKSCE Journal of Civil Engineering, 2021
To decrease the arch effect of core wall effectively has become an important requirement for high earth-rock dams. To address this issue, a soil solidifier was used to improve the properties of gravelly soil. This study investigated the durability and mechanical performances of gravelly soils mixed with different proportions of solidifier through the ...
Donghai Liu, Huaijian Dai, Zhao Zhang
openaire   +1 more source

Application of fractal theory in rockfill rheology

open access: yesShuili Shuiyun Gongcheng Xuebao, 2017
The rockfill material crushes during the process of rheology and the fractal dimension of rockfill material varies with time. Based on the basic rule of rheological process of coarse-grained soils, the fractal theory is applied into the analysis of ...
BIAN Shihai, LI Guoying, MI Zhankuan
doaj   +1 more source

Study on geomembrane seepage property of earth-rock dams

open access: yesIOP Conference Series: Earth and Environmental Science, 2019
AbstractAs an anti-seepage material, geomembrane is widely used in earth-rock dams engineering. However, the seepage calculation of geomembrane earth-rock dams has not been studied theoretically. According to the permeation mechanism of geomembrane, it can be divided into two categories: one is the permeability of itself; the other is the defect ...
Yunfeng Peng, Dongdong Si, Hailin Wu
openaire   +1 more source

Seismic dynamic responses of earth-rock dam considering wave and seepage [PDF]

open access: yesJournal of Vibroengineering, 2020
Earth-rock dam plays an important role in water conservancy project, but there were many damage cases caused by earthquakes, so it is necessary to investigate dynamic responses of earth-rock dams under combined action of earthquake and wave. Considering material nonlinearity, seepage, wave action, fluid-solid interaction, liquid sloshing, a numerical ...
Wei Jing, Jingxuan Wang
openaire   +1 more source

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+14 more sources

Numerical simulation of coupled water-heat-stress processes related to frost damage of earth rock dam protective structures

open access: yesShuili Shuiyun Gongcheng Xuebao
This study focuses on the common problem of frost heave damage to slope protection structures of earth-rock dams in cold regions. An earth-rock dam project located in a cold climate zone is selected as the research subject.
LI Zhuo   +5 more
doaj   +1 more source

Reasonable connection type for cutoff wall and core wall of earth-rock dams on deep overburden layers

open access: yesYantu gongcheng xuebao, 2017
The earth-rock dams built on deep overburden layers often use a closed seepage control system which is composed of core wall of dam body and impervious wall of dam foundation.
SHEN Zhen-zhong , TIAN Zhen-yu , XU Li-qun , GAN Lei
doaj   +1 more source

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