Results 21 to 30 of about 1,764 (248)

Machine learning based inversion for earth rock dam compaction density

open access: yesDevelopments in the Built Environment, 2023
In water resources and hydropower engineering and highway engineering, the compactness test of earth-rock mixed materials of the earth-rock dam and embankment plays an important role for construction quality assessment.
Chen Li, Guozhong Gao
doaj   +1 more source

Seepage behavior assessment of earth-rock dams based on Bayesian network

open access: yesInternational Journal of Distributed Sensor Networks, 2021
Seepage behavior assessment is an important part of the safety operation assessment of earth-rock dams, because of insufficient intelligent analysis of monitoring information, abnormal phenomena or measured values are often ignored or improperly processed.
Lu He   +6 more
openaire   +2 more sources

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

Recent earth-filled dam failures or accidents of reservoirs in China and their enlightenment

open access: yesShuili Shuiyun Gongcheng Xuebao, 2023
Affected by extreme weathers, dam failures and accidents occurred in recent years, and some regularity trend is gradually clear. Some new phenomena and new directions such as the excessive flood impact, earth-rock dam overtopping with not collapse ...
ZHANG Shichen, LI Hongen
doaj   +1 more source

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

Research on a Critical Hydraulic Gradient of Piping in Noncohesive Soils

open access: yesAdvances in Civil Engineering, 2021
The critical hydraulic gradient of cohesive soil is an important condition for judging soil piping. For force analysis of movable particles in pore channels of soil, this study proposes to consider the influence of surrounding particles on the drag force
Can-Hong Zhang, En-Yue Ji, Bao-Tian Wang
doaj   +1 more source

Experimental study on internal erosion behaviors under fluctuating hydraulic condition using transparent soil

open access: yesRock and Soil Mechanics, 2022
Internal erosion is a phenomenon that fine particles migrate through the channels within coarse matrix under seepage flow. Previous studies mainly focused on the internal erosion under steady hydraulic gradient, while the studies on the behavior and ...
DENG Ze-zhi, JI En-yue, WANG Gang
doaj   +1 more source

A state-of-the-art review on the simulation technologies of overtopping-induced breaching process of earth-rock dams

open access: yesShui kexue jinzhan
In recent years,climate change has triggered increasingly frequent extreme precipitation events,thereby posing significant challenges to the safe operation of earth-rock dams.
Qiming ZHONG   +3 more
doaj   +1 more source

Safety risk analysis of earth-rock dams based on the DEMATEL-ISM-ANP coupled model: With lianghekou hydropower station for example

open access: yesAin Shams Engineering Journal
Earth-rock dams are one of the most widely used dam types worldwide. The safety risk factors of dams typically demonstrate multi-source, inter-coupled, and dynamic features. There are complex interrelationships between these risk factors.
Ankui Hu   +4 more
doaj   +1 more source

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