Results 51 to 60 of about 375 (181)

Application of orthogonal-contour method in calibration of microscopic parameters of rockfill materials

Yantu gongcheng xuebao, 2020
In order to solve the problem of large amount of calculation in calibration of microscopic parameters for rockfill materials in discrete element model, taking the laboratory tri-axial tests on the rockfill materials as the object, the methods of ...
WANG Jin-wei 1, 2, CHI Shi-chun 1, 2 , SHAO Xiao-quan 1, 2, ZHAO Fei-xiang 1, 2
doaj   +1 more source

Effect of uncertainties in breach location and breach mechanisms on risk‐related classification of off‐stream reservoirs

Journal of Flood Risk Management, Volume 18, Issue 1, March 2025.
Abstract Off‐stream reservoirs are artificial water storage structures that increase the flood risk of an area. In some places, related risk reduction plans are based on a risk classification of these structures, which follows local water resource management regulations. These classification methods typically follow deterministic qualitative guidelines
Nathalia Silva‐Cancino, Leonardo Alfonso   +1 more
wiley   +1 more source

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

Experimental Study of Dike‐Break Induced Flow Generated by Instantaneous Opening of the Side Gate

Journal of Flood Risk Management, Volume 18, Issue 1, March 2025.
ABSTRACT A large‐scale experimental model of instantaneous dike‐break induced flow was conducted in this work. Water level variations in the river channel and floodplain, breach discharge, and the surface velocity field at the breach were measured during dike failure.
Dawei Zhang, Zhongxiang Wang, Huiwen Liu, Wuxia Bi   +3 more
wiley   +1 more source

Random Forests and Cubist Algorithms for Predicting Shear Strengths of Rockfill Materials

Applied Sciences, 2019
The shear strength of rockfill materials (RFM) is an important engineering parameter in the design and audit of geotechnical structures. In this paper, the predictive reliability and feasibility of random forests and Cubist models were analyzed by ...
Jian Zhou, Enming Li, Haixia Wei, Chuanqi Li, Qiuqiu Qiao, Danial Jahed Armaghani   +5 more
doaj   +1 more source

Three‐dimensional characterization of particle morphology in natural gravel and blasted rock fragments using SfM‐MVS photogrammetry

River, Volume 4, Issue 1, Page 70-83, February 2025.
Structure from Motion‐Multi‐View Stereo photogrammetry 3D reconstruction. Abstract This study aims to develop a high‐precision and cost‐efficient method for the three‐dimensional reconstruction of large particles in natural gravel and blasted rock fragments, utilizing Structure from Motion (SfM) and Multi‐View Stereo (MVS) techniques.
Hongchen Liu, Zitao Zhang, Huaizhi Su, Xuedong Zhang, Jing Hu   +4 more
wiley   +1 more source

Elastoplasticity constitutive model considering loading-induced deformation and creep behavior of coarse granular soils and its application

Yantu gongcheng xuebao, 2019
The field observations show that the existing widely-used constitutive models tend to underestimate the settlement of dams higher than 200 m. One of the main reasons is the separation of load-induced deformation and creep in such models and the ...
CHEN Sheng-shui 1,2, FU Zhong-zhi 1,2, SHI Bei-xiao 1, YUAN Jing 3
doaj   +1 more source

Influence of particle breakage on scale effect of filling characteristics of rockfill material

Yantu gongcheng xuebao, 2020
The filling characteristics of rockfill materials are closely related to their mechanical properties. They can be changed by particle breakage, which is one of the main factors of the scale effect of rockfill materials.
XU Kun 1, ZHOU Wei 2, MA Gang 2
doaj   +1 more source

Coarse‐Grained Ore Distribution on Conveyor Belts With TRCU Neural Networks

IET Image Processing, Volume 19, Issue 1, January/December 2025.
(1) The method can be used as technical support and the basis for subsequent real‐time particle size detection in the beneficiation process. (2) The proposed model combines Transformer and residual blocks with the CBAM attention mechanism in the encoder‐decoder. (3) The proposed model can effectively partition the ore particles of different grain sizes.
Weinong Liang, Xiaolu Sun, Yutao Li, Yang Liu, Guanghui Wang, Jincheng Wang, Chunxia Zhou   +6 more
wiley   +1 more source

A Methodology for Modeling a Multi-Dimensional Joint Distribution of Parameters Based on Small-Sample Data, and Its Application in High Rockfill Dams

Applied Sciences
The composition of high rockfill dam materials is complex, and the mechanical parameters are uncertain and correlated in unknown ways due to the influences of the environment and construction, leading to complex deformation mechanisms in the dam ...
Qinqin Guo, Huibao Huang, Xiang Lu, Jiankang Chen, Xiaoshuang Zhang, Zhiyi Zhao   +5 more
doaj   +1 more source