Results 51 to 60 of about 257 (176)

Causes of Tensile Strain of Asphalt Concrete Core Wall of Rockfill Dam in High‐Cold Area During Construction

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Asphalt concrete core rockfill dams, favored for their superior impermeability and adaptable deformation capacity (effectively accommodating uneven settlement), have been gaining increasing attention in Chinese engineering practice. However, ensuring safety during high‐temperature paving and subsequent cooling remains crucial.
Min Yuan, Lu Zhang, Jianqiao Wan, Yongfeng Qi, Zhiqiang Xie, Wenqiang Xu, Caihong Zhang, Yun Dong, Yi Shan   +8 more
wiley   +1 more source

Feedback Analysis of Deformation Modulus for an Extra‐High Arch Dam With Dam Height of 300 m Level

Advances in Civil Engineering, Volume 2025, Issue 1, 2025.
Deformation is a critical indicator for safety monitoring of arch dams in operation; comparing measured deformation values with calculated ones is a common approach to assess dam behavior. However, deformation calculated based on design deformation parameters often significantly differs from measured values, especially for extra‐high arch dams; to ...
Zhiyong Qi, Dawen Tan, Futing Sun, Shilin Gong, Xuhuang Du, Li Qingchao   +5 more
wiley   +1 more source

Overtopping Risk Analysis of Earth Dams considering Effects of Failure Duration of Release Structures

Complexity, 2020
For modern high earth dams, sufficient safety margin is considered in the designs of flood discharge capacity and dam crest elevation to prevent flood overtopping. However, for high earth dams which may induce catastrophic consequences, during their long
Lijun Liu, Zhenyu Wu
doaj   +1 more source

Probability Analysis Method of Seismic Response for Earth-Rockfill Dams

AbstractSeismic response probabilistic analysis for earth-rock dams is a crucial step in performance-based seismic safety evaluation. It represents a significant transition from deterministic analysis to stochastic analysis. To conduct such an analysis, it's essential to thoroughly consider the uncertainties associated with the seismic response of ...
Bin Xu, Rui Pang
openaire   +1 more source

Coupling sPCA‐Based Statistical Modeling With Deep Residual Networks Considering Thermal Effect for Deformation Forecasting in High Dams

Structural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
Accurate prediction of deformation under thermal influences is critical for the safety assessment and long‐term performance of high dams. This study proposes a novel two‐stage prediction framework that integrates statistical modeling with deep learning to enhance the interpretability and accuracy of dam deformation forecasting.
Bo Liu, Fangfang Liu, Fei Song, Francesc Pozo   +3 more
wiley   +1 more source

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
doaj   +1 more source

Altered flow and sediment transport impacts on the ecosystems of Chinese major rivers: An urgent call for eco‐fluvial dynamics

River, Volume 3, Issue 4, Page 341-361, November 2024.
Abstract River ecosystems face challenges due to environmental degradation and alterations in flow and sediment transport resulting from climate change and other anthropogenic impacts. These changes may substantially affect river morphology, nutrient dynamics, wetland vegetation, aquatic habitats, and river ecological stability.
Hongwei Fang, Guojian He, Lei Huang, Chenwei Zhao, Jianyu Wang, Yong Han, Qifeng Gao, Tao Zhang, Jianan Meng   +8 more
wiley   +1 more source

Analysis of Static Stability of Earth-Rockfill Dam Slope Based on PSO-PR-IE Method

Renmin Zhujiang
In order to fully consider the advantages of the anti-sliding performance of the contact interface using the partitioned rigid body–interface element (PR-IE) method, the static stability analysis method of earth-rockfill dam slope based on the PR-IE ...
LIU Qiankun, PAN Shiyang, LI Tongchun, LIU Baoyong   +3 more
doaj   +2 more sources

Calculation of rockfill deformation based on the generalized plastic framework

Shuili Shuiyun Gongcheng Xuebao
Rockfill is the primary load-bearing material in earth-rock dams, crucial for withstanding water pressure. Developing a constitutive model that accurately describes its mechanical properties is essential for predicting the stress and deformation in high ...
CAI Xinhe, ZHU Yumeng, LI Guoying
doaj   +1 more source

Discussion on some problems observed in high earth-rockfill dams

Yantu gongcheng xuebao, 2018
A few key issues influencing the safety of high earth-rockfill dams are discussed, and the research progress in recent years is reviewed. The factors which influence the scale effects of coarse-grained materials are analyzed.
WANG Xiao-gang
doaj   +1 more source