The walking jacking technology is developed from the traditional multi-point synchronous jacking technology, which changes the multi-point continuous jacking (or dragging) device into a walking jacking device placed on an independent pier.

GDBLDT150 Intelligent walking jacking system is composed of multiple walking jacking devices, and each device synchronously realizes jacking, forward movement with load, supporting beam drop and other cyclic actions to realize the forward movement of the jacking heavy objects. Compared with the traditional jacking construction using steel strand dragging, it has the characteristics of high safety, stable jacking and convenient axis adjustment. It does not require a lateral limit device. The equipment's own adjustment device can easily adjust the horizontal, longitudinal and vertical positions of the bridge. It is suitable for the jacking construction of large steel arch beams and steel box beams in the field of bridge construction. The walking jacking device consists of a sliding box, a slide, a PTFE slide plate, a jacking jack, a translation jack, a deviation correction device, a hydraulic pump station and a sub-control system. Each walking jacking device can also be connected to a set of master control systems.

ZNBD walking intelligent jacking system is the latest jacking system developed by our company. It adopts distributed control system to realize decentralized arrangement and centralized operation of actuators. It can not only meet the synchronous lifting of multiple hydraulic cylinders with uneven loads, but also monitor the pressure and displacement of each monitoring point in the process of bridge lifting in real time, and realize the force and position double closed-loop control of the bridge. It is mainly used for the special construction of bridge lifting such as large steel arch beams and steel box beams.