Tunnel roof support refers to the support measures taken to prevent the top rock and soil from destabilising or collapsing during tunnel construction or tunnel use. Its correct use needs to consider the following aspects:
1. Selection of support form: According to the specific situation of the tunnel project and the geotechnical conditions, choose the appropriate form of Support Arch, such as Steel Arch Support, spray anchor anchor, pre-stressing anchor, reinforced concrete beams, and slurry spray support.
2. Support arrangement design: According to the geological investigation data and tunnel design requirements, reasonably design the support arrangement scheme, including the type, quantity and spacing of support materials.
3. Construction quality control: the Support Arch construction process should be carried out in strict accordance with the design requirements to ensure the correct use of support materials and installation quality, especially in areas with complex geotechnical conditions or large geological changes.
4. Monitoring and maintenance: After the tunnel is opened to traffic, regular inspection and maintenance of the roof support is required to find and deal with the damage or deformation of the support structure in time, so as to ensure the safe operation of the tunnel.
5. Innovative application of technology: with the progress of science and technology, new roof support technology continues to emerge, engineering practice can be considered to use more advanced, more suitable for the local special conditions of the support method.
In summary, the correct use of tunnel roof support is an important safeguard to ensure the safety and durability of tunnel projects, which needs to be carefully designed and constructed in combination with the actual situation.
