The SJSG-3 section of the Shenjiang Railway is located in Guangdong Province and is an important component of the Shenjiang Railway project. This section connects Shenzhen and Jiangmen, with a total length of approximately 116 kilometers. After the completion of the project, it will greatly shorten the spatial and temporal distance between cities in the Pearl River Delta region and promote the development of regional economic integration.
Application Description
In the sealing of the SJSG-3 section of the Shenjiang Railway's "Navigation" shield tunnel, high load-bearing and anti-seepage jelly slurry technology (hereinafter referred to as "jelly slurry") is used to ensure the safety and efficiency of shield construction.
In the initial stage of starting and excavating the shield machine, jelly slurry is precisely injected into the gap between the tunnel steel ring and the tunnel ring plate. This process not only ensures the stability of the tunnel portal structure, but also plays a crucial supporting role before synchronous grouting arrives. Through this method, it is possible to effectively reduce the natural settlement phenomenon caused by construction disturbance in the weak strata above, thereby providing a solid foundation for the smooth advancement of the shield machine.
In addition, the use of jelly slurry strictly controls the settlement during the shield tunneling process, which is of great significance for assisting in the management of later settlement. By reducing the frictional force between the soil and the shield shell during contact, the problem of excessive thrust caused by geological constraints has been successfully reduced, thereby reducing the demand for shield machine propulsion force. At the same time, the excellent water resistance and bearing capacity of jelly slurry significantly reduce the impact of land disturbance and groundwater on settlement, ensuring the stability and safety of the entire construction process< br /> 
Evaluate the project
01 Strong plasticity
Jelly paste has strong plasticity, which allows it to tightly adhere to various shapes of voids after injection, making it less prone to loss, thereby ensuring the durability and reliability of the filling effect.
02 Strong water resistance performance
Jelly slurry has strong water resistance, even in high groundwater levels or seawater intrusion, it will not be diluted, ensuring its application effect in various complex geological conditions.
03 Difficult to harden and solidify
Jelly slurry is not easy to harden and solidify, which not only provides support but also has a certain lubricating effect, helping the shield machine to advance smoothly and reduce mechanical wear.
04 Certain bearing capacity and anti settlement performance
Jelly slurry has certain bearing capacity and anti settlement performance, which can effectively cope with the possible uneven settlement problems during the construction process and ensure the construction quality.
05 Easy mixing and preparation process
The mixing and preparation process of jelly slurry is simple, with controllable dosage and cost, which not only improves construction efficiency but also provides convenience for project management.
Conclusion:
We sincerely thank our customers for their long-term trust and support. We look forward to continuing to work together in the future to promote more high-quality infrastructure projects.