During the construction of the tunnel lining, the midline, elevation, section and clearance dimensions shall meet the design requirements. The stan...
                        
                        
                    The mechanized construction of the tunnel has experienced three stages: small equipment drilling and blasting construction, large trackless transpo...
                        
                        
                    In the current tunnel construction practice, considering the construction cost and construction speed, the selection sequence of the construction m...
                        
                        
                    Tunnel lining special grouting machine vault with mold grouting construction technology is to open a hole on the top of the lining trolley, and the...
                        
                        
                    Lining trolley generally consists of template assembly, bracket assembly, translation mechanism, mast assembly, master-slave travel mechanism, late...
                        
                        
                    The secondary lining is a moulded concrete or reinforced concrete lining applied on the inner side of the initial support during the tunnel constru...