ArticleScientific reports2025
Ultrasonic guided wave nondestructive testing of anchorage quality of rebar resin bolt based on EMD-PCA.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Bolt Anchorage Defect Identification Based on Ultrasonic Guided Wave and Deep Learning.Sensors (Basel, Switzerland) · 2025Article
- Influence of prefabricated fissure angles on mechanical and infrared properties of red sandstone and failure prediction based on deep learning.Scientific reports · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
Abstract
Currently, the ultrasonic guided wave inspection of the anchoring quality of rebar resin bolts in coal mine tunnels faces issues such as rapid signal energy attenuation, waveform superposition of reflected waves, and waveform complexity, making it difficult to effectively identify anchoring quality. Therefore, a method combining Empirical Mode Decomposition (EMD) with Principal Component Analysis (PCA) is proposed for processing and analyzing ultrasonic guided wave detection signals. This study employs numerical simulation combined with laboratory testing, selecting low-frequency guided waves at 50 kHz with lower attenuation as excitation signals to simulate the propagation process of ultrasonic guided waves through rebar resin bolt and surrounding anchorage media. Concurrently, an indoor nondestructive testing experimental platform was established to investigate signal propagation patterns across specimens with varying anchorage qualities. Finally, the EMD-PCA method was applied to process and analyze defect signals. Results demonstrate that this signal processing method can accurately identify the actual positions and lengths of anchorage defects, with discrepancies between numerical simulations and laboratory measurements remaining within 9.5%. For extended anchorage defects, the positioning error of defect locations is less than 2%. When defect interfaces approach the distal end of the anchorage, the IMF2 mode derived from EMD decomposition remains effective in extracting wave impedance difference interface reflections, thereby verifying the feasibility of applying the EMD-PCA signal processing method to ultrasonic guided wave nondestructive detection of defects in rebar resin bolts in coal mine tunnels.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.