A5102845227- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Soil Stabilization
- Grouting, Rheology, and Soil Mechanics
- Geotechnical Engineering and Soil Mechanics
- Soil and Unsaturated Flow
- Geotechnical Engineering and Analysis
- Landfill Environmental Impact Studies
- Rock Mechanics and Modeling
- Railway Engineering and Dynamics
- Numerical methods in engineering
- Thermoelastic and Magnetoelastic Phenomena
- Civil and Geotechnical Engineering Research
- Urban Stormwater Management Solutions
- Structural Health Monitoring Techniques
- Structural Behavior of Reinforced Concrete
- Smart Materials for Construction
- Geothermal Energy Systems and Applications
- Landslides and related hazards
- Geoscience and Mining Technology
- Geomechanics and Mining Engineering
- Asphalt Pavement Performance Evaluation
- Tree Root and Stability Studies
Institute of Rock and Soil Mechanics
2019-2024
University of Chinese Academy of Sciences
2019-2024
National University of Singapore
2022-2023
Wuhan University of Technology
2017
Polymer-blend geocell sheets (PBGS) have been developed as substitute materials for manufacturing geocells. Various attempts made to test and predict the behaviors of commonly used geogrids, geotextiles, geomembranes, However, elastic-viscoplastic novel-developed are still poorly understood. Therefore, this paper investigates PBGS gain a comprehensive understanding their mechanical properties. Furthermore, tensile load-strain history under various loading conditions is simulated by numerical...
Foam lightweight soil (FLS) has been widely used in geotechnical engineering because of their high strength, low density, and thermal insulation. However, few scholars have researched its application to subgrade engineering, especially roadbed widening. In this case, special artificial can significantly reduce the differential settlement subgrades due strength. research background, a series laboratory experiments were conducted investigate effects mixing ratio fibers on physical, mechanical,...
With the continuous development of road construction worldwide, sector is trying to find a versatile material for building roads in particular areas. Air-foamed lightweight soil, which produced using low-cost raw materials and has lower density varying from 300 1800 kg/m3, adjustable strength, excellent thermal isolation, more straightforward method, emerged as worthy candidate. This paper reviews air-foamed soil terms its composition well physical mechanical properties, such compressive...
A track-unsaturated ground model was proposed to study the dynamic responses of unsaturated subgrade induced by moving trainloads. The modeled an poroelastic half-space, and railway track system comprises a rail, sleepers, ballast. double Fourier transform applied solve governing equations entire in frequency domain. semianalytical results time domain were further obtained using fast inverse transform. effects saturation, train speeds, intrinsic permeability soil on studied both It found...
The dynamic vibrations of airport runways induced by moving aircraft loads are semi-analytically studied in this paper. runway consists an infinite Kirchhoff plate, elastic base course, and unsaturated poroelastic half-space. modeled according to the mechanical properties main landing gear A380 civil airliner. governing equations whole system solved wavenumber domain using double Fourier transform. Then results spatial obtained applying inverse Various parameters including observation...
Field practice shows that, joints have very adverse influence on crack formation in the protective layer of rock mass, during blasting excavation. To improve mass with filled joints, V-shaped notch method is conducted simulation and site. It can be seen from calculation dynamic finite element that boreholes played a certain role guiding energy excavation, generated along hole attachment when radial decoupling charging coefficient .198. Studies show joint at middle point borehole, compressive...
Geocells have recently been widely used to reinforce subgrade/foundation soil beds. The honeycomb-shaped cells can significantly improve the apparent cohesion and stiffness of due lateral limitation. This paper aims predict subgrade modulus geocell-reinforced sand beds according unreinforced properties geocells. Numerical technology was adopted obtain original data for building predicted model. A laboratory plate load test initially cited validate calculated results obtained using FLAC3D....
The impact of seasonal moisture variation on subgrade soil, including lime‐treated expansive has been investigated in many studies. However, when performing wetting and drying cycles, the effect stress, which decides behavior mechanical properties is usually ignored. In this paper, axial surcharge pressure deformation resilient modulus soil subjected to cycles was investigated. A self‐made apparatus chosen apply precisely control content. specimens were placed then under three different...
Abstract The logical coherence macro–micro experiments about the anti‐swelling performance of polyetheramine‐230 (PEA‐230) on expansive natural soil are presented in this paper. Further, expansion solution and water system is considered. Great significance treating broadens applied range polyetheramine‐230. mechanism assessed by X‐ray diffraction (XRD) state wet dry montmorillonite (Mt), XRD clay extracts from soil, zeta potential measurement, thermogravimetric analysis, scanning electron...
The mechanism and possible application of Portable Falling Weight Deflectometer (PFWD) for subgrade quality control are investigated by different methods, including semi-analytical simulation, laboratory test, field test. A layered elastic model is proposed to consider the stress dependency soil under PFWD loads. modulus each layer determined referring distribution state along with depth dynamic triaxial test data. It found that effective device in present study 0.6 m using analytical model....
A complete road-soft ground model is established in this paper to study the dynamic responses caused by vehicle loads and/or daily temperature variation. thermo-elastic applied capturing behavior of rigid pavement, base course, and subgrade, while soft characterized using a thermo-poroelastic model. Solutions system are derived Laplace-Hankel transform domain. The time domain solutions obtained an integration approach. temperature, thermal stress, pore water pressure, displacement load...
The loading and unloading actions of rollers during the construction geocell-reinforced soil subgrade lead to compaction infill materials, which further causes geocell pockets expand. Due pre-tensioning geocells, such responses result in increased lateral confinement prior service subgrade. phenomenon was defined as Compaction-induced Prestressing Effect (CIPE) this paper, verified through finite difference method-discrete element method (FDM-DEM) coupling numerical simulations on reinforced...