A5023959095- Geotechnical Engineering and Analysis
- Tunneling and Rock Mechanics
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Stabilization
- Grouting, Rheology, and Soil Mechanics
- Rock Mechanics and Modeling
- Innovative concrete reinforcement materials
- Concrete and Cement Materials Research
- Landslides and related hazards
- Drilling and Well Engineering
- Recycling and utilization of industrial and municipal waste in materials production
- Structural Behavior of Reinforced Concrete
- Advanced machining processes and optimization
- Electrodeposition and Electroless Coatings
- Smart Materials for Construction
- Metallic Glasses and Amorphous Alloys
- Building materials and conservation
- Geomechanics and Mining Engineering
- Microbial Applications in Construction Materials
- Fluid Dynamics Simulations and Interactions
- Mineral Processing and Grinding
- Materials Engineering and Processing
- Geoscience and Mining Technology
- Aeolian processes and effects
- Metal Alloys Wear and Properties
Shenzhen University
2021-2024
Shenzhen Metro (China)
2022-2024
Zhejiang Lab
2023
Beijing Jiaotong University
2019-2021
Shenzhen Academy of Robotics
2021
China University of Geosciences
2008-2020
Inner Mongolia Agricultural University
2010-2019
Jilin Jianzhu University
2013
Huazhong University of Science and Technology
2008
The mechanism of shield–soil interaction and multi-phase equilibrium control theory in shield tunneling process still lack sufficient understanding. Aiming at this problem, with the improved calculation method loose earth pressure, initial boundary problem attitude was solved. Based on ground reaction curve, simulated by equivalent springs, displacement surrounding soil calculated during change attitude. Then, theoretical load acting were obtained. In summary, This has three main...
This study aims to develop a rational theoretical model for cutterhead-soil interaction. The interaction mechanism is divided into two components: the cutting action of cutter on soil and extrusion cutterhead soil. By enhancing Mckyes-Ali model, we analyze deduce force state during shield tunneling, obtaining calculation method determining cutter. Additionally, conduct an in-depth analysis effect utilizing fundamental solution Kelvin problem. Based these calculations, validate tunneling...
This research explores the potential for evaluation and prediction of earth pressure balance shield performance based on a gray system model. The focuses tunnel excavated Metro Line 2 in Dalian, China. Due to large error between initial geological exploration data real strata, project construction is extremely difficult. In view current situation regarding project, quantitative method evaluating tunneling efficiency was proposed using cutterhead rotation (R), advance speed (S), total thrust...
In this study, aeolian-sand powder was used for replacing cement-based gelling material in order to prepare concrete C25 and C35 strength grades. Through relative dynamic elastic modulus carbonization depth changes, the deterioration laws of under coupling effects freeze-thaw + were studied. Then, field emission scanning electron microscopy, X-ray diffraction, nuclear magnetic resonance porosity measurement technology applied analyze microstructure, hydration products, changes. The results...
Abstract Based on a cross-river tunnel of Wuhan Metro Line 8, we present two-dimensional discrete element model for shield attitude adjustment considering the effect overbreak cutters. The shell mechanics under influence over-excavation rate, orientations, and overburden load are simulated, tunneling law ultimate range during investigated. simulation results indicate following: (1) greater smaller force exerted by soil layer in negative direction movement; therefore, increasing rate is...
Based on the existed research and analysis methods of air entraining natural pumice concrete freeze-thaw damage, nuclear magnetic resonance (NMR) detection technique was introduced in present study. From essence coupling-induced damage saline solution, porosity transversal relaxation time T2 spectral parameters were used as criteria, imaging (NMRI) technology, an intuitive method to determine quantitatively.
This paper studys the effect of PAM on strength cement-soil by different content cement soil unconfined test combined with a scanning electron microscope to have microscopic analysis impact mechanism cement-soil, hoping engineering applications provide reference. The study shows that: when is 10%, compressive trend first rose and then decreased increase . Cement-soil that was mixed an appropriate amount can effectively improve there optimal content.
The effect of the frost resistance on hybrid fibers reinforced lightweight aggregate concrete is investigated. And that steel fiber and polypropylene are selected to incorporate into. results indicate that, can improve resistance. weight loss rate not better. research establish a model for service life prediction experimental has been done.