This paper introduces the construction methods of adopting the full bolting technique in the tunneling without coal pillar,makes comparison of the full bolting technique with the shed supporting technique,and points out that the full bolting technique has the advantages of lower supporting cost,shorter supporting time,lower labor strength and faster tunneling speed.

Under the I-beam steel erecting shed support in the composite roof and pressure centralized area,the pressure relief support and archor belt strengthening support are applied.

Based on an actual construction project,a tunnel construction procedure with pipe shed support is simulated with three-dimension nonlinear FEM.

In combination with the suburban track engineering of the Guangzhou-Shenzhen railway line underpassing the Guangzhou Shenzhen high speed highway,the paper mainly discussed the form and structure of high aperture pipe shed support and its influence on the high speed highway.

The application of pipe-shed support method in bridge construction beneath expressway;

Numerical simulation of pipe roof support in the middle and deep part of coal mines

The paper discussed common problems of pipe roof support engineering in soft ground and presented the optimization technology by tests on borehole construction methods with existing equipments.