A5102946990- Concrete and Cement Materials Research
- Concrete Properties and Behavior
- Innovative concrete reinforcement materials
- Geotechnical Engineering and Analysis
- Geotechnical Engineering and Underground Structures
- Civil and Geotechnical Engineering Research
- Geotechnical Engineering and Soil Stabilization
- Infrastructure Maintenance and Monitoring
- Concrete Corrosion and Durability
- Grouting, Rheology, and Soil Mechanics
- Geomechanics and Mining Engineering
- Evaluation Methods in Various Fields
- Climate change and permafrost
- Evaluation and Optimization Models
- Railway Engineering and Dynamics
- Structural Engineering and Vibration Analysis
- Tunneling and Rock Mechanics
- Building materials and conservation
- Simulation and Modeling Applications
- Software-Defined Networks and 5G
- Asphalt Pavement Performance Evaluation
- Smart Materials for Construction
- Recycling and utilization of industrial and municipal waste in materials production
- Web Applications and Data Management
- Electromagnetic wave absorption materials
Fujian Medical University
2024
Lanzhou Jiaotong University
2013-2024
First Affiliated Hospital of Fujian Medical University
2024
Zhejiang Sci-Tech University
2022-2023
Hebei Science and Technology Department
2021
Institute of Disaster Prevention
2021
Integrated Chinese Medicine (China)
2018
Nanjing University of Chinese Medicine
2015
Southwest Jiaotong University
2012
Taiyuan Iron and Steel Group (China)
2010
The intelligent detection of distress in concrete is a research hotspot structural health monitoring. In this study, Att-Unet, an improved attention-mechanism fully convolutional neural network model, was proposed to realize end-to-end pixel-level crack segmentation. Att-Unet consists three parts: encoding module, decoding and AG (Attention Gate) module. benefits associated with module can effectively extract multi-scale features cracks, focus on critical areas, reconstruct semantics,...
To improve the properties of ground granulated blast furnace slag (GGBS) and utilize efficiently, this study investigates effect fineness on hydration activity index (HAI) slag. The GGBS with six specific surface areas (SSAs) was characterized by ratio compressive strength prismatic mortar test block. particle size distribution different grinding times tested laser analyzer. paste area GGBSs in curing ages investigated at micro level X-ray diffraction, scanning electron microscope, energy...
Morocco is rich in Mississippi Valley Type (MVT) copper deposits. Currently, geochemical surveying being conducted the Goulmima region pursuit of breakthroughs mineral exploration. This paper focuses on delineation prospecting targets area based ongoing 1:100,000 survey work Morocco. The study employs compositional data transformation to perform isometric log-ratio (ilr) transformations raw data, followed by Spectrum-Area (S-A) fractal processing, and then uses Random Forest (RF) algorithm...
The integration of high conductive networks and textiles has become a favorable technical route to fulfill the objectives wearable electronics. Herein, stretchable recoverable PET fabric coated with layer silver nanowire network by simple scalable polyol-method is provided. electrothermal performance, resistance temperature-sensitivity, electromagnetic shielding strain sensing, washability (AgNWs)/PET fabrics different coating times were performed. conductivity AgNWs 2.8 mg/cm 2 as 175 S/m,...
Steam curing, a common way of curing precast concrete, can greatly improve its 1-day strength. However, the thermal effect prolonged high-temperature negatively impact concrete's performance, thus compromising production products in cold regions. Fly ash (FA) is used as supplementary cementitious material to part properties concrete. In this paper, we investigated FA (10~30%) on compressive strength and microstructure manufactured sand concrete at steam later stages. Specifically, analyzed...
High-filled cut-and-cover tunnels (HFCCTs) can be used to reclaim usable land due the unique landforms in western China. The load reduction methods reduce earth pressure on such (CCTs) significantly affect safety of CCTs. This paper describes a study three measures: expanded polystyrene (EPS); combination EPS and geogrid; EPS, geogrid, concrete wedges. PFC2D, computer program based discrete-element method (DEM), was employed analyze examine evolution mechanisms. Parametric studies were...
High-filled cut-and-cover tunnels (HFCCTs) are common in northwestern China because their construction allows usable land over the CCT to be reclaimed. However, due unique landforms of Loess Plateau this region China, amount backfill soil that is needed for HFCCTs enormous, and must high enough maximize land. Currently, main challenges ultrahigh earth pressure safety concerns related existing lining structure. This paper discusses physical modeling tests were conducted investigate (1) load...
The cutting of the ballastless track for Lanzhou-Xinjiang high-speed railway (LXHR) shows a transfinite heave deformation in summer. This paper investigates mechanisms by analyzing water content, mineral composition, microstructure, and expansibility mudstone foundation using drilling core sampling heaved area (LXHR). Besides, an in-situ test is performed on typical heaving position to investigate overall micro-expansion red-bed after absorbing under different overlying loads. results showed...
This study explores nine machine learning (ML) methods, including linear, non-linear and ensemble models, using concrete parameters as characteristic variables. Including the dosage of cement (C), fly ash (FA), Ground granulated blast furnace slag (GGBS), coarse aggregate (G), fine (S), water reducing agent (WRA) (W), initial gas content (GC) number freeze-thaw cycles (NFTC), To predict relative dynamic elastic modulus (RDEM) mass loss rate (MLR). Based on linear correlation analysis...
The high‐filled cut‐and‐cover tunnel (HFCCT) is a solution to reclaim more useable lands due the unique landforms of Loess Plateau in northwestern China. Because ultrahigh backfill, estimation vertical earth pressure will significantly affect design and safety (CCT). current methods for estimating are either overestimate or underestimate on top HFCCT. To precisely estimate distribution, based soil column pressure, γh ( h : height backfill above CCT), needs be properly modified. Considering...