Results 1 to 10 of about 931,469 (314)

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

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

Load Transfer Behavior and Failure Mechanism of Bird’s Nest Anchor Cable Anchoring Structure

open access: yesApplied Sciences, 2022
To research the internal load transfer behavior and failure mechanism of a bird’s nest anchor cable anchoring structure based on a pull-out test, a bond-slip failure model is established on the basis of statistical damage theory, and the distribution ...
Changxing Zhu, Weihao Zhao, Xu Liu
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

Bending properties and failure mechanism of fiber rare earth magnesium alloy super hybrid laminates

open access: yesJournal of Aeronautical Materials, 2021
The fiber metal laminate is mainly used in the fuselage wall board, wing skin and other key parts of the aircraft. The structural parts mentioned above bear a large bending moment during the service, which requires that the fiber metal laminate should ...
ZHAO Zong   +4 more
doaj   +1 more source

Mechanism and Control of Asymmetric Floor Heave in the Gob-Side Coal Roadway under Mining Pressure in Extra-Thick Coal Seams

open access: yesEnergies, 2023
Due to their tense mining succession relationship, gob-side roadways may undergo significant deformation under multi-mining pressure. In this article, many methods, such as on-site research, a theoretical analysis, a numerical simulation and an ...
Deqiu Wang   +11 more
doaj   +1 more source

Failure Mechanism and Strength Prediction Model of T-Joint of Composite Sandwich Structure

open access: yesMetals, 2021
Composite sandwich structures are widely used in many fields. T-joint plays a significant role in the composite sandwich structural connection. In this paper, a type of adhesive T-joint was manufactured and tested under bending and shearing load ...
Yang Liu   +3 more
doaj   +1 more source

Effects of Notches and Defects on Dwell Fatigue Mechanism and Fatigue Life of Ti-6Al-4V ELI Alloy Used in Deep-Sea Submersibles

open access: yesJournal of Marine Science and Engineering, 2021
The notch (i.e., stress concentration) and defect are important factors influencing the conventional fatigue behavior of metallic materials. What is the influence of notches and defects on the dwell fatigue mechanism and fatigue life?
Jian Sun, Lei Wu, Chengqi Sun
doaj   +1 more source

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