Results 41 to 50 of about 5,478,875 (172)
Experimental Study on Overtopping-induced Progressive Breaching Mechanism of Structured Cemented Rockfill Dams [PDF]
[Objective] To improve the resistance of conventional rockfill dams to overtopping erosion and mitigate the consequences of dam breaching, this study proposes a structured surface cementation technique for rockfill dams.
CHEN Song-gui, LI Chang-jun, WANG Bai-zhi, PAN Chun-shu, JIN Feng
doaj +1 more source
The antiseepage curtain is one of the main antiseepage measures for asphalt concrete core rockfill dams. Taking Huanglong Pumped Storage Power Station as an example, this study established a three‐dimensional seepage model including the dam and the dam foundation antiseepage curtain.
Taofeng Zhang +9 more
wiley +1 more source
Cyclic and post-cyclic monotonic behavior of crushed conglomerate rockfill material under dry and saturated conditions [PDF]
The seismic behavior of two conglomerate rockfill materials used in two high rockfill dams, subjected to earthquake loads, has been studied. In order to evaluate the dynamic behavior, an extensive series of monotonic and cyclic tests were carried out on ...
Aghaei Araei, A. +2 more
core +1 more source
The Spatial Gradation Characteristics and Intensity Evolution Law of Mine Dump
Most of the mine dumps have very prominent slope stability problems. In this paper, by analyzing the gradation characteristics and spatial distribution characteristics of the discharged particles, the functional relationship between the characteristic particle size parameters and the relative height of the dump was obtained.
Bo Pang +8 more
wiley +1 more source
NHRI model parameter inversion and application of rockfill based on XGBoost
Based on the in-situ monitoring data of the dam, back analysis of the material parameters is an effective way to obtain the real parameters. Aiming at the problem of multi-material and multi-parameter back analysis in the NHRI model parameter back ...
LI Wei +3 more
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This study investigates the macro‐meso mechanical evolution of dam rockfill under the coupled effects of coarse‐particle content (P5) and confining pressure (σ3) using large‐scale triaxial tests and PFC3D simulations. The results show (1) shear strength and particle breakage depend synergistically on σ3 and P5.
Haoquan Chi +6 more
wiley +1 more source
Flowthrough and overtopped rockfill dams.
The emphasis of this thesis is on the derivation of original results or improvement to the available results in order to obtain a practical design methodology for overtopped rockfill dams. The work comprised of experiments in a large hydraulic flume, and
Li, Bingjun.
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Mark‐recapture studies using fluorochrome dyes are a valuable approach for validating the age determination of fish, yet the optimal chemical marker and its dosage for adult European flounder (Platichthys flesus Linnaeus, 1758) remain unclear. We assessed the effectiveness of tetracycline hydrochloride and calcein at different concentrations for ...
Hussaini O. Adamu +3 more
wiley +1 more source
Modelling the equalizing process of rockfill dumps with a plough: Subsea cut and transport processes [PDF]
A way to equalize granular rockfill dumps at a sea or river bed is the use of a plough. A plough can be modeled as a set of straight blades in sequence. Several cutting models for dry and saturated sand are present in the literature.
Kranendonk, W.J. (Wouter) +1 more
core +1 more source
Experimental Study on Mechanical Properties of Rockfill Materials under Constant p and Constant b Stress Paths [PDF]
[Objective] Under the actual filling conditions of high rockfill dams, rockfill materials are typically subjected to complex three-dimensional stress states.
PAN Jia-jun, WANG Jun-peng, ZHOU Yue-feng, WAN Hang, SUN Xiang-jun, HAN Bing
doaj +1 more source

