A5002715522- Geotechnical Engineering and Underground Structures
- Geophysical Methods and Applications
- Rock Mechanics and Modeling
- Infrastructure Maintenance and Monitoring
- Geotechnical Engineering and Analysis
- Tunneling and Rock Mechanics
- Structural Health Monitoring Techniques
- Grouting, Rheology, and Soil Mechanics
- Railway Engineering and Dynamics
- Landslides and related hazards
- Underground infrastructure and sustainability
- 3D Surveying and Cultural Heritage
- Civil and Geotechnical Engineering Research
- Non-Destructive Testing Techniques
- Industrial Technology and Control Systems
- Manufacturing Process and Optimization
- Seismic Imaging and Inversion Techniques
- Concrete Properties and Behavior
- Innovative concrete reinforcement materials
- Influenza Virus Research Studies
- Evacuation and Crowd Dynamics
- Geomechanics and Mining Engineering
- Concrete Corrosion and Durability
- Mechanical Failure Analysis and Simulation
- Asphalt Pavement Performance Evaluation
Tongji University
2014-2025
Hunan City University
2025
Xuzhou Medical College
2024
National Marrow Donor Program
2024
North China Electric Power University
2024
Weatherford College
2024
Shenzhen Third People’s Hospital
2013-2015
Guangdong Medical College
2015
University of Hong Kong
2013
Quzhou University
2013
Avian Flu in Ferrets A recent outbreak of avian H7N9 influenza humans eastern China has been closely monitored for any evidence human-to-human transmission and its potential sparking a pandemic. Zhu et al. (p. 183 , published online 23 May) examined the behavior virus ferret, mammalian model human influenza. The was excreted by ferrets could be transmitted readily contact but displayed limited capacity airborne infectivity. pathology is similar to H1N1, it seems that factors other than...
As highway tunnel operations continue over time, structural defects, particularly cracks, have been observed to increase annually. Coupled with the rapid expansion of networks, traditional manual inspection methods proven inadequate meet current demands. In recent years, machine vision and deep learning technologies gained significant attention in civil engineering for detection analysis defects. However, accurate defect identification tunnels presents challenges due complex background...
Abstract Efficient image‐recognition algorithms to classify the pixels accurately are required for computer‐vision‐based inspection of concrete defects. This study proposes a deep learning‐based model called sparse‐sensing and superpixel‐based segmentation (SSSeg) accurate efficient crack segmentation. The employed sparse‐sensing‐based encoder decoder was compared with six state‐of‐the‐art models. An input pipeline 1231 diverse images specially designed train evaluate results indicated that...
Finding a low-cost and highly efficient method for identifying subway tunnel damage can greatly reduce catastrophic accidents. At present, health monitoring is mainly based on the observation of apparent diseases vibration monitoring, which combined with manual inspection to perceive status. However, these methods have disadvantages such as high cost, short working time, low identification efficiency. Thus, in this study, algorithm response in-service train WPE-CVAE proposed, automatically...
The study investigates the cracking and damage of shield tunnel segmented lining via field observations measurements a case in Shanghai metro system. are carried out on local segment, segment joint dislocation, respectively. Notable deformation can be observed several rings. Two parameters, proportion damaged rings radius ovality (OR), introduced to describe what extent section how large transverse ring is. construction-relevant data, such as attitude machine assembled rings, collected...
Synchronous grouting in shield tunnel construction plays a critical role enhancing impermeability, ensuring precise alignment of segment rings, and mitigating surface settlement. Despite its importance, limited research has been conducted on the visualization numerical simulations for behind wall. This study addresses this gap by simulating diffusion process during post-grouting using CFDEM software. The simulation results reveal that grout injected from upper opening initially diffuses...
This study investigates the impact of basalt fiber on mechanical properties reinforced concrete members, with a specific focus their behavior under large eccentric compression. A series compression tests were conducted fiber-reinforced (BFRC) members varying parameters. The failure characteristics, ultimate bearing capacity, cracking load, crack width, and other relevant factors thoroughly analyzed. results indicate that BFRC components are significantly improved compared to traditional...
Recently, convolutional neural networks (CNNs) and hybrid networks, which integrate CNN with Transformer, have been widely employed in structuring crack detection, effectively addressing the challenges of high‐precision identification controlled scenes. However, scene generalization remains a significant challenge for existing especially under limited dataset conditions. With rapid development foundation models (like ChatGPT), achieving has become feasible. In this paper, by taking tunnel...
As energy demand continues to grow and environmental issues become more severe, the development utilization of clean natural gas are becoming increasingly important. This paper focuses on impact mechanism landslide disasters pipelines, analyzing how displacement, width, pipeline wall thickness, internal pressure affect stress displacement. The study finds that landslides cause concentration at middle boundary positions pipelines. displacement increases, also increases. For example, when is...
Ground penetrating radar (GPR) is a vital non-destructive testing (NDT) technology that can be employed for detecting the backfill grouting of shield tunnels. To achieve intelligent analysis GPR data and overcome subjectivity traditional processing methods, CatBoost & BO-TPE model was constructed regressing thickness based on waveforms. A full-scale test corresponding numerical simulations were carried out to collect at 400 900 MHz, with known thickness. The helps address limitation not...
Presented herein is a computationally efficient 2D theoretical model for simulating the steady response of floating slab track-tunnel-soil system. The track-tunnel coupled system simplified as beam-spring and embedded in soil layers. tunnel modeled by Timoshenko beam with its interaction layers accounted two transfer matrices, each derived layer above beneath tunnel. approach proposed has been referred to beam-transfer matrix method (TTMM), that allows one analyze system, including motion...
Based on human perception and machine learning methods, this study proposes a measurable method for evaluating visual comfort in underground spaces. First, evaluation index based the characteristics of is proposed, color features segmentation extraction methods intelligent are given. Then, using probability statistics multi-class sorting classification algorithm ranking levels constructed comparison made suitability different comfort. The random forest then selected as most effective...