聚酯与环氧玻璃钢管道结构性能及工程应用分析

Structural Properties and Engineering Application Analysis of Polyester and Epoxy Glass Fiber Reinforced Plastic Pipe

摘要

聚酯与环氧玻璃钢管道在中国给排水、市政排污、化工介质输送与油气田集输注水等场景中形成了“中低压长距离埋地”与“中高压多弯头地面或埋地混合”的典型应用体系。本文以连续缠绕与传统缠绕工艺文件、环氧管设计与检验文件为线索，结合中国现行标准条款与工程实践，讨论两类树脂体系在内衬、防渗、承压与连接构造方面的差异，并据此提出可操作的设计选型、制造控制、现场安装与试压验收要点。研究表明，结构层纤维取向与固化方式决定承压与抗外压的安全裕度，连接界面与回填工况共同影响寿命与泄漏风险。

Abstract

Polyester and epoxy fiberglass pipes have formed a typical application system of “medium and low pressure long-distance buried” and “medium and high pressure multi-bend surface or buried mixed” in scenarios such as China’s water supply and drainage, municipal sewage, chemical medium transportation, and oil and gas field gathering and injection. This paper, using continuous winding and traditional winding process documents, epoxy pipe design and inspection documents as clues, combined with China’s current standard clauses and engineering practices, discusses the differences between the two resin systems in terms of lining, anti-seepage, pressure-bearing, and connection structures, and proposes operational design selection, manufacturing control, on-site installation, and pressure test acceptance points accordingly. The study shows that the fiber orientation and curing method of the structural layer determine the safety margin for pressure-bearing and external pressure resistance, while the connection interface and backfilling conditions jointly affect the service life and leakage risk.

关键词

聚酯与环氧玻璃钢管道 / 结构性能 / 工程应用 / 策略 / 分析

Key words

polyester and epoxy glass fiber reinforced plastic pipes / structural performance / engineering applications / strategies / analysis

参考文献

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