Results 61 to 70 of about 800 (181)

Grouted rockfill a material between rockfill and concrete

open access: yesGeotecnia, 1985
Define-se enrocamento argamassado e compara-se a sua composição, características e processo de execução com outros materiais afins, tais como o simples enrocamento, o betão injectado, o betão cilindrado, o betão ciclópico, o seixo-cimento, o solo-cimento e o macadame.
openaire   +1 more source

Developing a mathematical framework in preliminary designing of detention rockfill dams for flood peak reduction

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
Hydraulic designing of rockfill detention dam is based on the treatment of nondarcian and non-linear turbulence flow in coarse porous media. Previous literature focused only on the regular outlet ponds, and there is a shortcoming in the design ...
Hossien Riahi-Madvar   +4 more
doaj   +1 more source

Rockfill Modelling

open access: yesGeotecnia, 1983
Rockfill material cannot be tested in a natural scale because of the particle size. So there are doubts concerning the accuracy of the laboratory results obtained by the modelling of this material. The main purpose of this work is to contribute to the answer of this question. The minimum size sample that may be tested in laboratory, the parameters used
openaire   +1 more source

Research Hotspot and Trend Analysis of Earth-Rockfill Dam Stability Based on Knowledge Map

open access: yesRenmin Zhujiang
Since the 20th century, earth-rockfill dam instability accidents have occurred frequently all over the world. In order to systematically summarize the current status and hotspots of research on earth-rockfill dam stability and analyze the future ...
WANG Luoxi   +4 more
doaj   +2 more sources

Modeling Static Behavior of Rockfill Materials Based on Generalized Plasticity Model

open access: yesAdvances in Civil Engineering, 2019
Rockfill materials are commonly used for dam construction. Establishing an effective model that can reasonably describe the mechanical properties of rockfill material is very important for the calculation of earth-rock dam engineering.
Shihai Bian, Bo Wu, Yongzheng Ma
doaj   +1 more source

Influence of particle crushing on the critical state line of rockfill materials [PDF]

open access: yesE3S Web of Conferences
The mechanical behaviour of rockfill materials is strongly affected by particle breakage, which causes a continuous variation of the grain size distribution (GSD) until a stationary condition.
Ventini Roberta   +3 more
doaj   +1 more source

A simulation-optimization approach to determine optimum features of detention rockfill dams under flood condition [PDF]

open access: yesمهندسی منابع آب, 2019
Detention rockfill dams are one of the structural methods that can control flood risks with no impermeable core or membrane. These dams decrease the maximum discharge of flood hydrograph and postpone the time of its occurrence reducing life and financial
Nafiseh Khoramshokooh   +2 more
doaj  

Wave Energy Dissipation in Rockfill

open access: yesCoastal Engineering 1972, 1972
Very little literature exists on the subject of unsteady non-Darcy flow in coarse granular media. However, unsteady non-Darcy flow is encountered in a few important hydraulic problems, for example, (a) Wave absorption and transmission in rubble-mound break-waters; (b) Water level fluctuations in the rockfill and filter zones of a dam subjected to wave ...
openaire   +2 more sources

Experimental Study on Mechanical Properties of Rockfill Materials under Constant p and Constant b Stress Paths [PDF]

open access: yes长江科学院院报
[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

Home - About - Disclaimer - Privacy