Back analysis of soil pressure acting on shield lining segment;

Design model for shield lining segments and distribution of load;

Mechanical analysis of segment joint of shield tunnel and research on bilinear joint stiffness model;

Model tests on mechanical characteristics of segment lining structure under multi-layered strata;

Research purposes: When a shield tunnel traverses the section with different geological conditions or surface buildings,longitudinal deformation and internal forces for segment lining will be produced.

Model Test and Numerical Simulation of Segment Lining for Nanjing Changjiang Tunnel;

The main topics under discussion here were: corrosion mechanism of RC segment lining structures,main factors affecting the durability of RC tunnel structures,durability of bolts connected segment joints and water-proofing materials,durabil.

The mechanical properties of segment linings for deep and long tunnels of west route of South-to-North Water Transfer Project are analyzed by using numerical simulation method.

In order to probe into the 3D mechanical behaviors of shield tunnel segmental linings,a shell-spring-contact model for load and structure interaction was set up by using thick shell,spring,solid and contact elements to analyze forces acting on shield tunnel segments.

For verifying the loading ability and stability of lining segment,it s necessary to do the lining whole wreath experiment.

The test results can guide parameter design of similar lining segment.

The distribution law of structural internal force of lining segment is analyzed,and influences of different calculation method on structural design of shield tunnel lining are also discussed.