Civil engineering, Geotechnical engineering: 1. Soil mechanics, 2. Tunnel engineering

Shield tunnelling method, Pipe jacking method,
Mechanical properties of saturated and unsaturated soils, Deformation characteristics of soils in small strain, Liquefaction of sandy soils

X-ray camera (300kVA), Total station with automatic tracking system,
Ring shear apparatus, Hollow cylinder torsional shear apparatus, Triaxial apparatus with local small strain measurement and the bender element.

Simulation on shield behavior, Control of shield, Analysis considering the interaction between TBM, lining and ground,
Element tests for soil strength, Small strain measurement for soil specimen, Bender element tests for soils

Theoretical and empirical study on shield behavior based on kinematic mechanics for construction of underground infrastructure in urban area,
Design method of segmental lining for deep underground tunnel,
Measurement of mechanical properties of soils, Estimation of ground stability considering unsaturated soils, Liquefaction risk assessment

Analysis, test and exmination on shield tunnelling method and pipe jacking method,
Soil testing and ground investigation methods, Soil samples from problematic grounds

Many corpolative reseach activities in urban tunnelling with owners, general construction companies, and consulting companies,
Soil testing and ground investigations considering site conditions