The localization of traditional pipe 
•The traditional pipe (such as concrete pipe) has a heavy self-weight, there is high requirement for this kind of pipe on trench base and the head-subsidence of the pipe occurred easily on soft soil base of trench and it is difficult to correct its deflection.

•There is a high requirement for the road to transport the traditional pipe with heavy self-weight, and a high requirement for the equipment to lift the pipe. the large transporting and lifting equipment will be limited in the a small construction space.

•The soil will be formed a block due to its cohesion when the pipe stopped by the barrier, in this case, the jacking force will be increased greatly, so the jacking length is limited under the certain pressure was subject to the pipe.

The traditional pipe was easily corrupted by the sewerage inside of pipe and the acid substance of the soil outside of pipe, so caused the pipe short service life.

Advantage of GRP jacking pipe
•Light weight, the pipe has a low requirement for lifting equipment and was easy to be installed and corrected its deflection.

•diameter of pipe can be chosen to use under the certain flow capacity, which can reduce the cost of project.

•Smooth outside surface, long jacking length in single time and low requirement for jacking equipment, the soil’s cohesion does not effect the GRP mortar pipe so much and there is no “embraced pipe and dead pipe” during jacking into the soil. 

•Corrosion resistance and long service life, which can approach more than 50 years, low maintenance expense for pipe and high long-term benefit. 
•The GRP jacking pipe has a high compression  strength and it is not easy to be damaged ( The compression strength of concrete pipe’s end is about 65MPa, but GRP pipe can approach 150MPa).