污水压力深隧内衬连续缠绕玻璃钢管结构的设计和优化

Design and Optimization of Composite Tunnel with Continuous Advancing Mandrel Winding Fiberglass Pipe Lining

近几年来,随着我国对城市排水系统的不断重视,全国范围内越来越多的地区开始兴建污水(压力)深隧等。面对不断提高的工程要求和更复杂的内外部腐蚀环境,采用连续缠绕玻璃钢管道内衬的三层复合隧洞结构是一个有效解决方案。通过采用弹性力学理论对该三层复合隧洞结构进行设计分析和内压工况下理论计算,建立了应力计算公式,并在此基础上进一步优化,提出一种带柔性隔离层的四层复合的分离式隧洞结构。优化后的四层结构更能充分发挥各层材料的性能,在满足安全的条件下更具有经济性。

In recent years,with the continuous development of urban drainage system in China,more and more areas begin to build sewage(pressure)tunnels.Faced with increasing engineering requirements and more complex internal and external corrosion environment,application of a three-layer composite tunnel structure with continuous advancing mandrel winding fiberglass pipe lining is an effective solution.Based on the analysis and theoretical calculation of the three-layer composite tunnel structure by elastic mechanics theory,obtained the stress calculation formulas,and proposed a four-layer composite separated tunnel structure with flexible isolation layer.The optimized four-layer structure can make full use of the advantages of each layer and is more economical under safe conditions.