Research on vehicle-mounted soil electrical conductivity and moisture content detection system based on current–voltage six-terminal method and spectroscopy

D Wang, W Yang, C Meng, Y Cao, M Li - Computers and Electronics in …, 2023 - Elsevier
To provide real-time, online, and accurate measurements of soil electrical conductivity (EC)
and moisture content (SM) in large-scale agricultural fields and guide field management …

Field experimental investigation on bearing characteristics of super-long pile under dynamic compaction in land reclamation area

C Li, X Bai, J Yin, S Sang, N Yan, J Liu, W Shui… - Applied Ocean …, 2024 - Elsevier
To investigate the bearing mechanism of super-long piles in reclamation, this study
performed a series of field tests on super-long cast-in-place piles. The load distribution and …

Non-destructive method for evaluating local integrity of model piles using electromagnetic waves

D Lee, JD Yu, S Jeong, G Park, JS Lee - NDT & E International, 2024 - Elsevier
The objective of this study is to suggest a more accurate integrity estimation method in
drilled shafts using electromagnetic waves propagating through transmission lines. Model …

Smart sensing using electromagnetic waves for inspection of defects in rock bolts

JD Yu, JS Lee - Sensors, 2020 - mdpi.com
The stability of tunnels and rock slopes is adversely affected by defects in rock bolts. This
study investigates the suitability of the smart sensing method using electromagnetic waves …

Behavior investigation of necking pile with caps assisted with transparent soil technology

X Le, X Cui, M Zhang, Z Xu, L Dou - Sustainability, 2022 - mdpi.com
Pile easily develops necking defects during construction, which can limit the exertion of shaft
resistance, resulting in reducing ultimate bearing capacity and creating potential safety …

Variations in velocity and sensitivity of electromagnetic waves in transmission lines configured in model piles with necking defects containing soils

JD Yu, SY Kim, JS Lee - Sensors, 2020 - mdpi.com
This study investigates variations in the velocity and sensitivity of electromagnetic waves in
transmission lines configured in defective model piles for the detection of necking defects …

Characterization of cementation factor of unconsolidated granular materials through time domain reflectometry with variable saturated conditions

YH Byun, WT Hong, HK Yoon - Materials, 2019 - mdpi.com
The cementation factor is necessary to determine porosity via the Archie equation, and its
range of values has been suggested in many previous studies. However, the cementation …

Dynamic cone penetrometer incorporated with time domain reflectometry (TDR) sensors for the evaluation of water contents in sandy soils

WT Hong, JD Yu, SY Kim, JS Lee - Sensors, 2019 - mdpi.com
Ground moisture content and strength properties are the most important factors for a proper
assessment of ground stability. This study developed a dynamic cone penetrometer …

Horizontally elongated time domain reflectometry system for evaluation of soil moisture distribution

DJ Kim, JD Yu, YH Byun - Sensors, 2020 - mdpi.com
The objective of this study was to develop a horizontally elongated time domain
reflectometry (HETDR) system to evaluate the water content in nonuniformly wetted soils …

Experimental study on bearing characteristics and soil deformation of necking pile with cap using transparent soils technology

Z Xu, Z Guo - Advances in Civil Engineering, 2021 - Wiley Online Library
This paper will employ the transparent soil experiment technology to explore the influences
of shallow necking on the vertical bearing capacity of single pile with cap. Model experiment …