The GDBLDT150 synchronous jacking system for bridge beam launching is an intelligent hydraulic walking jacking solution developed on the basis of traditional multi-point synchronous jacking technology. Instead of using conventional continuous jacking or steel strand dragging methods, it adopts independent walking jacking units installed on temporary piers or supporting platforms. The complete system is composed of several intelligent walking jacking devices, which work together to perform cyclic actions such as vertical lifting, loaded forward movement, beam lowering and support switching. Through repeated synchronized movements, the system can smoothly push heavy bridge structures forward.

Compared with traditional bridge launching construction using steel strand pulling, the GDBLDT150 synchronous jacking system offers higher safety, better stability and easier alignment adjustment. It does not require additional lateral limiting devices, because the built-in adjustment mechanism can accurately control the transverse, longitudinal and vertical positions of the bridge structure. This makes it especially suitable for bridge beam launching, steel box girder pushing, large steel arch beam installation and heavy bridge component translation.

Each walking jacking device is mainly composed of a sliding box, slideway, PTFE sliding plate, vertical jacking jack, horizontal translation jack, deviation correction mechanism, hydraulic pump station and local control system. Multiple walking jacking devices can also be connected with a master control system to achieve centralized monitoring, coordinated operation and multi-point synchronous control.

The GDBLDT150 intelligent walking jacking system adopts a distributed control system, allowing actuators to be arranged separately while being operated through one centralized control platform. The system can realize multi-point synchronous lifting under uneven load conditions, and can monitor the pressure and displacement of each jacking point in real time during bridge lifting and launching.

With force and displacement double closed-loop control, the GDBLDT150 synchronous jacking system for bridge beam launching ensures accurate synchronization, stable movement and precise bridge alignment throughout the jacking process. It is widely used in special bridge construction applications such as bridge beam launching, steel box girder launching, large steel arch beam installation, bridge pushing, bridge lifting, deviation correction and heavy structure translation.

The GDBLDT150 synchronous jacking system for bridge beam launching is mainly used in bridge construction, bridge beam installation, steel box girder launching, steel arch beam pushing and heavy structure translation projects. It is especially suitable for construction sites where large bridge components need to be lifted, pushed, aligned and positioned with high accuracy.

This intelligent hydraulic jacking system can complete vertical lifting, longitudinal pushing, lateral deviation correction and beam lowering through coordinated multi-point synchronous control. It is widely applied in highway bridges, railway bridges, viaducts, overpasses, river-crossing bridges and urban bridge construction projects.

The system is also suitable for bridge maintenance and reconstruction projects, such as bridge beam replacement, bridge alignment adjustment, bridge bearing replacement and heavy load structure repositioning. With real-time pressure and displacement monitoring, the GDBLDT150 system ensures safe, stable and precise movement during complex bridge launching operations.

Typical applications include:
Bridge beam launching
Steel box girder pushing
Large steel arch beam installation
Bridge girder lifting and translation
Bridge longitudinal pushing construction
Bridge lateral deviation correction
Bridge alignment adjustment
Bridge bearing replacement
Viaduct and overpass construction
Heavy steel structure moving
Multi-point synchronous lifting projects
Large bridge component installation

1. Three-Directional Synchronous Control
The GDBLDT150 synchronous jacking system is equipped with a master control system, which can control multiple jacking units in three directions. It can perform vertical lifting, longitudinal pushing and lateral deviation correction either automatically or manually, ensuring smooth and coordinated bridge beam launching.
2. Precise PLC Control System
The system adopts advanced sensor technology, PLC control technology, frequency conversion control and computer software. It can accurately control displacement and synchronization, making the bridge jacking and launching process more stable and reliable.
3. Force and Displacement Dual Control
With force and displacement synchronous dual control, the system can realize real-time deviation correction during the jacking process. This helps maintain the required slope of the steel beam and ensures the overall alignment of the bridge structure.
4. Special Double-Jack Correction Structure
The deviation correction structure adopts a double-jack design, which prevents lateral force from being transferred to hydraulic cylinders in other directions during correction. The main jacking point is designed with a spherical plate structure, which is helpful for automatic centering and leveling during bridge lifting.
5. Real-Time Monitoring and Feedback
The control system can display key working parameters in real time, including displacement, pressure of each jacking point, oil pump status and solenoid valve operation status. Through real-time feedback control, the system improves operation safety and construction accuracy.
6. Low-Friction Sliding System
The sliding structure is made of special wear-resistant materials. The static friction coefficient can reach 0.06, and the dynamic friction coefficient can reach 0.03, which helps reduce resistance and ensures smoother bridge beam movement.
7. Modular Structure Design
The jacking and pushing structure adopts a modular design, reducing the workload of on-site pipeline connection and installation. This design also helps lower operation risks and makes the system easier to assemble, maintain and transport.
8. Compact and Cost-Effective Design
The system features a simple structure, small working space requirement and relatively low construction cost. It is especially suitable for bridge launching projects with limited site conditions.
9. Intelligent Data Management and Safety Protection
The GDBLDT150 intelligent jacking system supports data recording, intelligent management and over-limit alarm functions. When displacement, pressure or synchronization exceeds the preset range, the system can issue alarms in time, making the whole bridge jacking operation safer and more reliable.