Comparison is made between sand-filled FRP pipes and steel reinforced concrete pipes used in the municipal drainage system in terms of hydraulic characteristics,strength,stiffness,corrosion resistance,environmental pollution,environmental applicability,installation and overall economic bene- fits.

The steel lined-reinforced concrete penstock on the downstream surface of concrete dams is widely used in Dongjiang, Jinshuitan, Wuqiangxi, Lijiaxia, Sanxia projects.

There is crack usually in the surface of reinforced concrete pressure conduit engineering.

The application of rectangular reinforced concrete pipe in river regulation;

Through computation and analysis of reinforced concrete bifurcation pipe,this paper has given stress distribution of fork part,and analyzed the influence that the change of fork angle has on stress distribution.

3-D FEM is applied to analyze the reinforced concrete bifurcation pipe of the transferring water series of a hydropower station,the stress distribution is worked out and the reinforcement is schemed considering the stress.

Finite element method is adopted to analysis the reinforced concrete bifurcation pipe in some hydropower station,considering six combined operating conditions in construction and operating processes,the distributions of the stress for bifurcation pipe and wall rock are worked out,and analysis and explain of calculation results is presented.

The article sums up, analyzes and compares the technical performance and the engineering construction cost of HDPE pipe and steel reinforced concrete pipe in the wastewater engineering.

The article introduces the construction of jacking pipe by using DN2200 steel reinforced concrete pipe as the crossing pipe,and the construction method of then installing DN1800 socket-and-spigot sand glass fiber reinforced plastic pipe into the steel reinforced concrete pipe.