A5013781022- Rock Mechanics and Modeling
- Tunneling and Rock Mechanics
- Mineral Processing and Grinding
- Geophysical Methods and Applications
- Grouting, Rheology, and Soil Mechanics
- Drilling and Well Engineering
- Metal Extraction and Bioleaching
- Advanced materials and composites
- Microwave-Assisted Synthesis and Applications
- Geotechnical and Geomechanical Engineering
- Fire dynamics and safety research
- Geomechanics and Mining Engineering
- Landslides and related hazards
- Intermetallics and Advanced Alloy Properties
- Combustion and flame dynamics
- Gear and Bearing Dynamics Analysis
- Evacuation and Crowd Dynamics
- Bauxite Residue and Utilization
- Fire Detection and Safety Systems
- Advanced Surface Polishing Techniques
- Advanced machining processes and optimization
- Wind and Air Flow Studies
- Advanced ceramic materials synthesis
- Microbial Applications in Construction Materials
- Adhesion, Friction, and Surface Interactions
Dalian University
2024
Dalian University of Technology
2024
Northeastern University
2016-2021
China Railway Group (China)
2020
Institute of Rock and Soil Mechanics
2019
National Cheng Kung University
1990
The realisation of microwave-induced fracturing hard rocks has potential significance for microwave-assisted mechanical rock and stress release in deep masses. In this context, compact basalts were treated by microwave heating a multi-mode cavity at frequency 2450 MHz, then, we investigated the behaviour basalt samples after treatment under uniaxial compression conventional triaxial (CTC) tests. After exposure, cracks appeared on surface inside sample, temperature sample's was unevenly...
Microwave energy has been demonstrated to be able assist mechanical rock breaking in geotechnical and mining engineering. The aim of this research is study the influences interaction between microwave rocks on performance disc cutters a TBM (tunnel boring machine). By applying an open-type microwave-induced fracturing apparatus hard rocks, cuboidal basalt samples were subjected irradiation for different times. Full-scale linear cutting tests conducted specimens treatment condition having...
Microwave radiation is an effective method to weaken the strength of hard rock, but this weakening effect not obvious enough for weak microwave-absorbing rocks. This work focuses on role water in amplifying microwaves rocks, by examining bursting characteristics rocks as well their physical and mechanical properties before blasting. The experimental results show that when subjected microwave irradiation, time taken decreases with higher power. In addition, surface temperature saturated...
To explore the influences of microwave irradiation on rock-breaking efficiency tunnel boring machine (TBM) cutters, a multimode cavity with power 2100 W was used to conduct tests Chifeng basalt for different durations. A combined abrasion test device reduced-scale SP3-I TBM cutter adopted wear and samples before after irradiation. Influences loss cutter, rock removal, cutting force, specific energy were investigated. The results show that linearly reduces while removal increases increasing...
The research is aimed at exploring the influences of microwave irradiation on physicomechanical properties and Cerchar abrasivity index (CAI) rocks. For this purpose, basalt collected in Chifeng (the Inner Mongolia Autonomous Region, China) was taken as objects to carry out tests for different durations a multimode cavity. By using MTS815 mechanical testing machine abrasion servo tester rocks, were conducted before after irradiation. Changes mass, volume, surface fractures, temperature,...
Grouting is an effective technical way for the construction of deep tunnels in unfavorable geological conditions. The fluid-solid-chemical coupling mechanism grouting process analyzed from following three aspects: influence physical properties silica sol on permeability coefficient, dynamic changes porosity and geotechnical media with seepage pressure, governing equations flow mass transfer characteristics. A dynamically changing model nanosilica established, considering grout surrounding...
This study focused on the detection of water inrush in tunnels excavated by full−section hard rock tunnel boring machines (TBMs) and employed ground penetrating radar methods for conducting research signal processing algorithms. The demonstrates that conventional techniques are inadequate eliminating interference TBM equipment propagation. employs a antenna array method transmission, utilizing wavelet double−threshold filtering algorithm wave propagation theory to suppress clutter. These...