Shield mesh

Jul 04,2023

Shield segment is a robust composite production material for tunnel construction. The main difficulty in machining the internal steel skeleton is to complete the fixed-length shearing, bending and arc forming of large-diameter steel bars, and to realize the three-dimensional welding of multi-layer mesh combinations. For a long time, the production of shield segment steel cages can only be processed into single ribs by CNC equipment and then welded by manual lashing.

Question NO.1
design is not conducive to mechanized production, there are differences in the design source of segment steel cages, and the structure is relatively trivial.
Question NO.2
production relies on labor, low level of automation, because its internal steel skeleton main processing difficulty is to complete the large-diameter steel bar fixed length bending, but also to achieve multi-layer mesh combination three-dimensional welding, due to the lack of domestic machinery, technology led to long-term artificial production mode, low production efficiency, poor safety, high labor intensity, coupled with the continuous improvement of labor costs, Traditional manual labor processing can no longer meet the needs of modern architecture.
Question NO.3