Before the lining work, the trolley must be positioned to make the cross-sectional dimensions of the trolley consistent with the required dimensions. After the trolley walks to the section to be lined, it is positioned by the following actions:
(1) Adjust the center line of the trolley by operating the translation cylinder of the hydraulic system to align it with the centerline of the tunnel;
(2) Operate the hydraulic system jacking cylinder to raise the trolley to the standard lining height, and then tighten the foundation jack, then review the height dimension;
(3) Operate the hydraulic system so that the lateral cylinder piston rod extends and reaches the standard lining section, and then manually pulls the lateral support screw to make it reach the lateral cylinder support position and tighten;
(4) After completing the above actions, the section size should be reviewed to prevent errors.
Luoyang Gaofei Bridge Tunnel Machinery Co., Ltd. is led by the technical elite of the former China Railway Tunnel Group Machinery Factory, the tunnel construction equipment industry experts and professional sales team. The company has more than 30 engineers and senior engineers, more than 300 professional technicians and after-sales service personnel, and more than 50 marketing and management personnel. The company has a construction area of more than 10,000 square meters, and is well equipped for machining, welding, tooling and inspection.