Solutions to the GRP header solution

Glass fiber reinforced polyester (GRP) is a composite material that offers unique properties and advantages for a variety of applications. The combination of materials in GRP creates a product with strength, reliability and high performance. The GRP pipeline offers a new opportunity to integrate better and more efficient solutions through innovative product designs. 


Traditional solutions 

Before GRP was used in microtunnel applications, there was concrete. While this solution is still in use, many improvements can be addressed with GRP pipe jacking. Conventional concrete pipe jacking in microtunnel applications usually requires two pipes. The two-pipe approach means that underground applications require a pipe wrapped in a concrete pipe to complete the solution. 

In traditional solutions, the casing (outer pipe) is made of concrete, resulting in a heavier outer layer. Due to the necessity of the inner pipe, the inner diameter of the guarantee is also very large. The thickness of the concrete also increases with the large diameter, leading to larger application tunnels and more handling capacity. The conveying pipe (inner pipe) is usually made of PE, GRP or PVC and is fixed in the casing. The lining between these pipes is then filled with cement slurry. 

The benefits of GRP 

With the advent of GRP technology, the industry has been looking for new ways to simplify the construction process. One such application is a project involving microtunnels. GRP pipe jacking provides a single-pipe solution that provides strength while reducing pipe weight, aperture, and hydraulic performance. In cases where two pipes are used in a traditional concrete solution, a single GRP pipe jacking can be used instead. LANDYOUNG GRP pipe jacking is suitable for potable, non-potable, industrial, drainage and waste water system pressure, non-pressure and trenchless applications. 


This brings several advantages that affect the speed, cost, and efficiency of the application. 


The outside diameter of GRP pipe is smaller than that of conventional concrete pipe jacking. 


A smaller OD means easier work for the installer and easier transportation to the site. It can also save money because a smaller outside diameter means a smaller tunnel of the same aperture.The use of GRP reduces disposal and excavation costs because the smaller pore size reduces the amount of waste that installers need to remove. The outer surface of the GRP tube is not only smaller, but also smoother. The smooth surface reduces friction during jacking and allows for longer drive lengths. 




They have better hydraulic performance. 

GRP composites have better hydraulic performance. Used in many sewer applications, the smooth inner surface of fiberglass pipes allows for easier flow. The rough surface of a concrete pipe tends to increase the surface friction of the pipe. 

GRP pipes do not need metal reinforcement, which means they are not subject to corrosion. In contrast, concrete pipes contain steel bars that have the potential to corrode, especially in wastewater applications. GRP's high wear and chemical resistance makes it an ideal choice for a variety of micro-tunnel projects. 



Their designs are innovative, strong and flexible. 

GRP pipe jacking is a single-pipe solution compared to the double-pipe solution commonly used in concrete solutions. They are easy to cut, install, and connect; And there are many lengths to choose from. They are suitable for high stiffness pipe designs, making them a flexible option for a design life of more than 100 years. 




Compared to reinforced concrete (RC) or glass clay (VC) materials, GRP pipe pushing has high compressive strength and excellent wall thickness to id ratio. GRP pipe jacking has a significantly larger inside diameter due to the equivalent outside diameter. 



End-to-end solution. 

The construction industry is constantly evolving - new developments mean that suppliers should provide products suitable for projects utilizing the latest technology and application solutions.When GRP pipe jacking is compared to conventional concrete solutions, they represent the product of choice for future microtunneling applications. 


At this point, the landyoungfrp products are very good, worth choosing.