Combined with practical engineering,the author introduces the design and construction scheme of pilot pipes,and illustrates construction technology of large pilot pipes,trimmiog of operating platform,construction of umbrella arch,jacking of steel tube,and grouting of pilot pipes,in order to ensure safe and rapid implementation of construction.

The application of long tubular shanty grout injection technology in entrance excavation of tunnel with half-soft wall rocks;

By means of water drainage and blockage, and with large-scale lead pipe grouting technology, the tunnel goes through the poor geology zone smoothly.

The application of pre-casting technology through advanced installed pipe shed in portal section construction of highway tunnel in fault-rupture zone;

After studied the Liuqiao fault fracture zone water yield property and transmissibility,pipe shed support and advance grouting reinforced engineering were adopted before the crossheading cut through the fault,meanwhile a series of tried and true driving and supporting measures taken on to insure the-380 crossheading cutting through the fault safely.

Principle of pipe shed for box culvert with large cross-section is analyzed,and bearing function of pipe shed is proved by actual project.

Optimum diameter analysis of pipe roofs applied in underground engineering with shallow overburden;

Analysis of mechanical property of concrete-filled steel tubular pipe roof underpass bridge;

Tunnel construction technology of long pipe roof beneath airport taxiway;