A5076160498- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Soil Stabilization
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Analysis
- Rock Mechanics and Modeling
- Civil and Geotechnical Engineering Research
- Geoscience and Mining Technology
- Soil, Finite Element Methods
- Tunneling and Rock Mechanics
- Landslides and related hazards
- Acute Lymphoblastic Leukemia research
- Geomechanics and Mining Engineering
- Dam Engineering and Safety
- Simulation and Modeling Applications
- Educational Technology and Assessment
- Numerical methods in engineering
- Cryospheric studies and observations
- Fungal Plant Pathogen Control
- Coastal and Marine Dynamics
- Innovative Educational Techniques
- Geotechnical and Geomechanical Engineering
- Innovations in Concrete and Construction Materials
- Blasting Impact and Analysis
- Composite Material Mechanics
CCCC Wuhan Harbour Engineering Design and Research (China)
2019-2025
Ministry of Transport
2019-2023
Chang'an University
2020-2021
China Communications Construction Company (China)
2021
Regend Therapeutics (China)
2019
CCCC Highway Consultants (China)
2019
Northern Jiangsu People's Hospital
2015
The University of Texas Health Science Center at San Antonio
2015
Cancer Research Center
2015
Yangzhou University
2014
Coral reefs are widely distributed along the “Maritime Silk Road”, and their unique mechanical properties pose numerous challenges for marine engineering construction. The side friction resistance (SFR) capacity of traditional driven piles in coral reef strata remains unclear, there is a lack effective calculation methods. Furthermore, complex environment imposes higher requirements on pile foundation construction durability. In this study, series interfacial shear tests were carried out...
While tunnel boring machines (TBMs) tunneling in clayey strata, the adhered excavated soil on cutterhead and cutting tools tends to form mudcake after compaction consolidation.Mudcake can obstruct openings rendering ineffective, leads a substantial reduction advance rate.Dispersants are recognized as an effective method for disintegration of mudcakes.A novel set equipment, comprising compression device apparatus, is developed assessing properties.The results showed that mudcakes underwent...
The slurry–earth pressure balance dual-mode shield has an earth (EPB) and slurry functions. Based on a tunnel project of Guangzhou Metro Line 12 in China, this study investigates the clogging prevention composed stratum with medium–coarse sand argillaceous siltstone. results show that mode was not applicable to excavated soil accumulated easily chamber, causing clogging. total thrust force increased significantly, tunneling speed gradually decreased 0, torque cutterhead slightly after...
Coral sand foundation formed by hydraulic fill often faces the problem of poor bearing capacity. This paper proposed for first time to apply CFG pile composite coral sites verify feasibility this scheme and understand its mechanical characteristics. Firstly, taking on-site as research object, a interface shear test was conducted clarify mechanism side friction. At same time, ultimate capacity measured through in-situ static load tests. Then, based on strength parameters revealed indoor...
In blasting excavation engineering of super-large section underground caverns, vibration velocity prediction accuracy is affected by many factors. order to improve its accuracy, the key problem obtain these affect factors comprehensively. this paper, we innovatively put forward eight independent in aspect explosion source conditions, conditions and propagation medium conditions. These have complex non-linear relationship with velocity. We consider particle swarm optimization (PSO) algorithm...
The mechanical and deformation mechanism of coral-reef limestone is vital for the stability safety infrastructures built on ground composed those materials. Upon loading, strain softening behavior occurs, usually due to nonuniform cementation distribution, within samples may break up gradually reduce bearing capacity. In order study their features, uniaxial compression tests were carried out in this study, and, based test results, a binary-medium-based constitutive model was formulated,...
In order to study the characteristics of pile–rock action steel pipe driven pile in coral reef limestone stratum, at China–Maldives Friendship Bridge site was selected carry out indoor physical and model tests with red sandstone as control group. The test outcomes indicate following: (1) when substantial deformation is permitted, has a considerable strength dispersion, low post-peak stress decrease rate, high residual strength, roughly 30% peak strength; (2) penetrates limestone, top load...
The launching‐arrival stage of the shield is most dangerous construction in subway construction. During conversion process soil and air medium machine, water inrush at excavation surface often occurs because effect groundwater. Previous research has focused on overall stress deformation existing tunnels caused by from face machine stage. However, states segments anchors different assembly locations tunnel, as well interaction between reinforcement region have not been considered previous...
In geotechnical engineering, vertical drainage is the most economical method for accelerating consolidation of a large area soft ground. this study, we analyze viscoelasticity soil and actual conditions on top surface soil, then introduce continuous boundary adopt fractional derivative model to describe soil. With use model, governing partial differential equation drains under obtained. application Crump numerical inversion method, solution also Further, rationality proposed verified by...
In engineering practice, the measured bearing capacity of a sand pile composite foundation in mucky soil layer is much larger than design value. Based on construction and load application process, method calculating based effective stress was proposed. Cavity diameter expansion simplified into planar problem, cavity theory used to establish expression rate displacement horizontal increase. e-p curve calculation degree consolidation, relationships between vertical void ratio were obtained....
Engineering practice has shown that shield machines may become clogged in coarse-grained strata. The criteria for determining the clogging potential strata were proposed. With surface area ratio of fine to coarse particles a soil specimen being > 30:1, interfacial shear adhesion showed trend increasing first and then decreasing with an elevation water content. However, remained negligible < 25:1. Interfacial could be adopted characterizing risk clogging. Thus, critical 25:1 was suggested...
In geotechnical engineering, side friction resistance (SFR) is difficult to be measured directly. To further understand distribution law of the SFR, this paper developed a monitoring device that can directly measure SFR. Further, theoretical conversion formula for elastic deformation and SFR considers end effect sensor sealing was proposed guide selection size material. Moreover, then calibrated using large-scale direct shear apparatus analyzed stability sensor. The calibration results...
This study investigates the effects of interface shape and bonding conditions on side friction resistance cast-in-place pile in coral reef limestone stratum China-Maldives Friendship Bridge area. Large-scale direct shear tests are performed limestone-concrete to investigate exertion mechanism interfacial strength. A finite-discrete element coupling method (FDEM) is employed develop a constitutive model for limestone. numerical calculation capacity foundations strata proposed based bearing...
The formation and layer of ice lenses during the freezing soil in cold regions is closely related to frozen heave moisture immigration. purpose paper explain physical mechanisms pertaining lens formation, which were analyzed verified using numerical simulation results. Based on a few assumptions, layers are illuminated following steps: initial stage freezing, first lens, second final lens. Compared with results coupled thermo–hydro–mechanical simulations one-side columns an open system,...
The process of constructing breakwater project is a course dumping rockfill.And the slit squeezed out.The simulation rockfill mainly by Lagrange or Euler algorithm.But these two algorithms have disadvantages in simulating.The extruding slitl dynamic contact rockfill, seawater and silt.This paper studies basic principle Coupled (CEL).The simulated CEL with ABAQUS.This Haiyang harbor.The size effect on depth put forward.The research results can be used for reference other engineering.
Undrained shear strength (Su) of foundation soils were estimated from the results pressuremeter tests conducted on slightly overconsolidated and clays in two test sites. To investigate effects overconsolidation ratio (OCR) limited length undrained clays, three kinds evaluation methods based cavity expansion theory used this study.Where direct traditional method suggested by Gibson Anderson ignores effect OCR, analytic modified Cambridge model proposed Cao only considers finite element (FEM)...