Grid panels are an important means of strengthening tunnel excavation and excavation. Reasonable selection during the construction process can accelerate the construction progress. According to different cave cross-sections and address conditions, different forms of support can be used to effectively reduce project costs. It can accelerate the support of damaged areas in caves, ensuring the stability and construction safety of cave structures.

The grid plate is a steel frame reinforced support system, mainly used to support the surrounding rock pressure and suppress deformation before the sprayed concrete does not meet the design strength or cannot be sprayed in time. It improves the initial support system resistance, ensures the safety of construction inside the tunnel, and becomes a part of the permanent support system under later support, which is conducive to the stability of the cave structure.

The grid plate has a large contact area with concrete, good bonding effect, can deform together, act together, and is not prone to shrinkage cracks. The grid plate is produced using flexible steel, and the installation should be as suitable as possible for the rock wall. The integrity is better, and the rear part is not prone to cavity problems.

It has relatively low cost, good economy, light weight, and convenient transportation and installation. However, the grid plate and overall stiffness are low and cannot resist the deformation of surrounding rock stress and other defects.