What is the role of steel frame in tunnel shotcrete and anchor support? What is the construction process?

Bear the load of the tunnel wall, keep the overall stability of the tunnel, and play a supporting and guiding role in the tunnel construction process. The process is as follows:

1, according to the design drawings and the actual situation on site, make the steel frame members that meet the requirements.

2. Transport the fabricated steel frame to the tunnel construction site.

3. Assemble the steel frame members according to the design requirements, and make adjustments and corrections on site to ensure that the design and construction requirements are met.

4. Install the assembled steel frame on the tunnel wall. During installation, attention should be paid to the position and angle of the steel frame to ensure its close cooperation with the cave wall.

5. Fix the installed steel frame to ensure its stability and safety.

6. After the installation of steel frame is completed, anchor and shotcrete construction shall be carried out.