Research on the optimized decision-making method of the least security coping thickness of subsea tunnel;

Study on the durability of lining concrete of subsea tunnel;

Study on numerical method for the minimum rock covers of subsea tunnels;

Analysis of causes and disposals for water gushing of land regions Xiamen of submarine tunnel;

Waterproof engineering of submarine tunnel in Xiamen Xiangan;

Displacement convergence method for minimum rock cover above submarine tunnel;

Constructing skill research of Xiamen seabed tunnel;

The construction of seabed tunnel is conducted under conditions of seawater,water bursting passage(fault crack),hydraulic pressure and construction disturbance,so the collapse and water bursting will happen if there is any carelessness in the construction,resulting in disaster outcome.

Xiamen seabed tunnel is first the seabed tunnel in our country continent district, and is a milestone in our country tunnel, and possesses the important influence to the later tunnel construction.

Study on influence of excavation by sections with CRD method on structural internal force in undersea tunnel;

Application of self-water proofing high-performance concrete used in second-level lining of undersea tunnel engineering;

The design of blasting control of the hard rock in large cross-section undersea tunnel

Mechanical characteristics of surrounding rock in sub-sea tunnel based on strain nonlinear softening

The key design and construction points of the water-proofing and drainage of Xiang an sub-sea tunnel,which is the first sub-sea tunnel in mainland China,are presented in detail.