Results 11 to 20 of about 6,260 (209)

Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown

open access: yesARO-The Scientific Journal of Koya University, 2021
Earth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions.
Sirwan Gh. Salim, Krikar M. G. Noori
doaj   +3 more sources

Study on Stability Reduction Characteristics of Earth and Rockfill Dams under Rapid Drawdown Using Fully Coupled Seepage-Stress Analysis

open access: yesAdvances in Civil Engineering, 2022
It can be a great expense to examine individually the stability of earth and rockfill dams on rapid drawdown in civil engineering practice. The aim of this present work is to clarify the safe type on the rapid drawdown among the most common types of ...
Yong Nam Ri   +4 more
doaj   +2 more sources

Seepage Safety of a Rockfill-based Earth Dam Heightening Project [PDF]

open access: yes长江科学院院报
[Objective] A large number of aging earth and rockfill dams in China needs to be heightened due to seepage risks and insufficient flood control capacity.
CEN Wei-jun, ZHENG Xiao-yu, DENG Cheng-fa, CAO Yi-fan
doaj   +2 more sources

The Inversion Analysis and Material Parameter Optimization of a High Earth-Rockfill Dam during Construction Periods

open access: yesApplied Sciences, 2022
Inversion analysis is usually an efficient solution to process the monitoring data of earth-rockfill dams. However, it is still difficult to obtain calculation results that are consistent with monitoring data due to different construction statuses. To deal with this situation and to introduce a new solution to improve calculation accuracy, the general ...
Shiyang Pan   +5 more
openaire   +3 more sources

Numerical Simulation of Hydraulic Fracturing in Earth and Rockfill Dam Using Extended Finite Element Method

open access: yesAdvances in Civil Engineering, 2018
Hydraulic fracturing is one of the most important factors affecting the safety of earth and rockfill dam. In this paper, the extended finite element method (XFEM) is used to simulate the hydraulic fracturing behavior in an actual high earth and rockfill ...
Enyue Ji   +4 more
doaj   +2 more sources

The Wetting Deformation Model of Rockfill and Its Two Methods for Simulating Rockfill Dam Collapse Settlement. [PDF]

open access: yesScientificWorldJournal, 2023
The wetting deformation of the upstream dam shell material during the impoundment of the core wall rockfill dam seriously affects the safety of the dam.
Pan L, Fan Z, Wang D, Zhou X.
europepmc   +2 more sources

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

Seismic safety analysis of high earth-rockfill dams based on seismic deformational fragility

open access: yesYantu gongcheng xuebao, 2020
The performance-based seismic fragility analysis can effectively estimate structural damage under earthquake action and become one of the important methods for seismic safety assessment.
JIN Cong-cong 1, CHI Shi-chun , NIE Zhang-bo
doaj   +1 more source

Unified modeling behavior of rockfill materials along different loading stress paths

open access: yesSoils and Foundations, 2022
Rockfill materials used for dam construction show obvious stress path dependency during construction process. The constitutive model for rockfill materials are mainly established based on conventional triaxial test.
Shihai Bian   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy