Results 11 to 20 of about 2,619,969 (311)

Recognition of the Typical Distress in Concrete Pavement Based on GPR and 1D-CNN

open access: yesRemote Sensing, 2021
Ground-penetrating radar (GPR) signal recognition depends much on manual feature extraction. However, the complexity of radar detection signals leads to conventional intelligent algorithms lacking sufficient flexibility in concrete pavement detection ...
Juncai Xu, Jingkui Zhang, Weigang Sun
doaj   +1 more source

Experimental study on internal erosion behaviors under fluctuating hydraulic condition using transparent soil

open access: yesRock and Soil Mechanics, 2022
Internal erosion is a phenomenon that fine particles migrate through the channels within coarse matrix under seepage flow. Previous studies mainly focused on the internal erosion under steady hydraulic gradient, while the studies on the behavior and ...
DENG Ze-zhi, JI En-yue, WANG Gang
doaj   +1 more source

Research on a Critical Hydraulic Gradient of Piping in Noncohesive Soils

open access: yesAdvances in Civil Engineering, 2021
The critical hydraulic gradient of cohesive soil is an important condition for judging soil piping. For force analysis of movable particles in pore channels of soil, this study proposes to consider the influence of surrounding particles on the drag force
Can-Hong Zhang, En-Yue Ji, Bao-Tian Wang
doaj   +1 more source

Experimental study on the dynamic behavior of rubber concrete under compression considering earthquake magnitude strain rate

open access: yesJournal of Civil Engineering and Management, 2020
To examine the compressive dynamic performance of rubber concrete, a uniaxial compression experimental study on rubber concrete was carried out using a hydraulic servo based on five different rubber substitution rates under eight different earthquake ...
Furong Li   +4 more
doaj   +1 more source

Measuring method for membrane penetration capacity of coarse-grained soil in triaxial tests

open access: yesYantu gongcheng xuebao, 2021
The membrane penetration effects displayed in the coarse-grained soil tests will distort the measurement of volume deformation of samples, thereby affecting the measuring accuracy of strength and deformation index.
XU Wei-wei 1, CHEN Sheng-shui 1, 2, FU Zhong-zhi 1, 2, JI En-yue 1, 2
doaj   +1 more source

Experimental study on microstructure and compressibility of iron ore tailings

open access: yesYantu gongcheng xuebao, 2020
A series of compression tests are conducted on iron ore tailings taken from Qingshan tailings impoundment to analyze the compression deformation behavior.
ZHANG Yi-jiang 1, CHEN Sheng-shui 1, 2, FU Zhong-zhi 1, 2
doaj   +1 more source

SBG model for particle breakage of rockfills based on fractal gradation equation

open access: yesYantu gongcheng xuebao, 2022
Accurately predicting the particle breakage rate and the corresponding gradation changes of rockfills in shearing process is beneficial to revealing their characteristics such as strength, penetration and deformation under complex stress conditions ...
DING Lin-nan 1, 2, LI Guo-ying 1, 2
doaj   +1 more source

Enhanced Failure Detection Mechanism in MapReduce [PDF]

open access: yes, 2012
The popularity of MapReduce programming model has increased interest in the research community for its improvement. Among the other directions, the point of fault tolerance, concretely the failure detection issue seems to be a crucial one, but that until
Antoniu, Gabriel   +2 more
core   +4 more sources

Effects of Grain Size Distribution on Landslide Dam Breaching—Insights From Recent Cases in China

open access: yesFrontiers in Earth Science, 2021
Landslide dams are common geological features in mountainous areas, which may have serious consequences due to sudden breaching of the dam. An effective emergency response requires rapid and accurate forecasts regarding the landslide dam breach process ...
Shengyao Mei   +7 more
doaj   +1 more source

Numerical model for breach of concrete face sand-gravel dams due to overtopping

open access: yesYantu gongcheng xuebao, 2019
Based upon the data of field investigations and back analysis of centrifugal model tests for the beach case of the Gouhou concrete face sand-gravel dam (CFSGD), a numerical model for breach of CFSGD is developed. The major highlights of the model are the
ZHONG Qi-ming 1, 2, SHEN Guang-ze 1
doaj   +1 more source

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