The application of the reinforcement method combined with small duct grouting and long pipe roof in collapse treatment of tunnel;

Construction scheme of the long pipe roof in Longchi tunnel;

The major contents described in the article include technology of vacuum dewatering inside the tunnel,technology of double side drift construction method and long pipe roof construction technology.

The vehicle tunnels adopt box culvert advancing scheme under overlength pipe shed,which is the first case to underpass the west L-taxiway of Beijing Capital International Airport without suspending air service during construction in China.

The application of long and large pipe shed method in treating carbon-based phyllite collapse

The tunnel significant fall-in treatment technology with long pipe roof method

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