Results 11 to 20 of about 189 (154)

Study on Influence of Numerical Simulation Accuracy on High Core Wall Rockfill Dam Deformation and Crack Analysis

open access: yesBuildings, 2022
With the increasing height of rockfill dams, detailed and effective numerical simulation for the dam design and construction has become increasingly important.
Xiongxiong Zhou, Bo Wu, Li Li
doaj   +1 more source

Damage evolution mechanism and safety evaluation criterion of ultra-high rockfill dam system under strong earthquakes

open access: yesYantu gongcheng xuebao, 2022
Several ultra-high earth and rockfill dams up to 250 to 300 m in height are to be built in the intensive earthquake regions of West China. The strong outburst and high uncertainty of strong earthquakes pose a great threat to the safety of ultra-high ...
ZOU De-gao 1, 2, LIU Jing-mao 1, 2, KONG Xian-jing 1, 2, CHEN Kai 1, 2, QU Yong-qian 1, 2, NING Fan-wei 1, 2, GONG Jin 1, 2
doaj   +1 more source

Innovations in prediction theories and prevention technologies for deformation-induced failure process of high earth and rockfill dams

open access: yesYantu gongcheng xuebao, 2022
China is the country with the largest amounts of high earth and rockfill dams in the world. Complex construction conditions and severe operation environment lead to great technical challenges in their construction and long-term safety guarantee. The main
CHEN Sheng-shui 1, 2
doaj   +1 more source

Rockfill material segmentation and gradation calculation based on deep learning

open access: yesCase Studies in Construction Materials, 2022
The gradation of rockfill materials affected the rolling quality and body strength of earth-rockfill dam. To address the limitations of manual screening and traditional computer vision methods, a gradation detection method suitable for rockfill dam ...
Haoyue Fan   +6 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

Stochastic seismic stability analysis of dam slopes considering softening of rockfills

open access: yesYantu gongcheng xuebao, 2019
The rockfills of earth-rockfill dams gradually show softening characteristics subjected to earthquakes, especially strong ones, which will affect the safety of dam slopes.
KONG Xian-jing 1, 2, PANG Rui 1, 2, XU Bin 1,2, ZHOU Yang 1, 2, ZOU De-gao 1, 2
doaj   +1 more source

Time History Method of Three-Dimensional Dynamic Stability Analysis for High Earth-Rockfill Dam and Its Application

open access: yesSustainability, 2022
Accurately grasping the stability characteristics of high earth-rockfill dam slopes is the key to the seismic safety evaluation of dams. In this research, the development and application of the common methods for slope stability analysis are reviewed firstly.
Yuan, Han   +5 more
openaire   +1 more source

Modal identification of high earth-rock dams based on seismic records and SSI method

open access: yesYantu gongcheng xuebao, 2021
Using the measured seismic records to identify the modal parameters of high earth-rock dams is a feasible way to study the dynamic characteristics of dams.
WANG Mao-hua 1, 2, CHI Shi-chun 1, 2, ZHOU Xiong-xiong 3
doaj   +1 more source

Experimental study on strength and deformation characteristics of gravelly soil core materials

open access: yesYantu gongcheng xuebao, 2020
For the earth core rockfill dam, the coordination of the strength and deformation of the dam is a key issue that restricts the dam construction. The deformation of the gravelly soil core materials is large, which leads to the transfer of the load to the ...
ZUO Yong-zhen , ZHAO Na , ZHOU Yue-feng
doaj   +1 more source

Stress characteristics of foundation gallery of high core wall rockfill dam

open access: yesYantu gongcheng xuebao, 2017
There are deep overburdens, tens to hundreds of meters thick, on riverbeds in western China where many rockfill dams are under construction or will be built.
FENG Rui , HE Yun-long , BAI Xin-ge
doaj   +1 more source

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