The PE buried sewage pipes, primarily made from polyethylene resin, are collectively referred to as thermoplastic round pipes formed by the extrusion molding process, designed for use without internal pressure. Due to their remarkable capabilities such as high water flow capacity, high temperature resistance, corrosion resistance, non-toxicity, and wear resistance, they have now been widely applied in various fields including municipal infrastructure, road construction, building, agriculture, and industry, serving functions such as drainage, sewage disposal, and irrigation.