【摘要】 基于单点裂缝模型试验结果分析,提出了一种利用瑞利散射的工程结构裂缝光纤监测复用能力的方法,得到水工混凝土裂缝光纤监测两种典型方案的裂缝复用能力,结合三峡工程泄洪坝段上游面出现的裂缝,进行了光纤裂缝传感复用能力的工程适用性分析,进一步揭示工程裂缝光纤分布式监测能力研究的意义.更多还原

【Abstract】 The means of investigating the multiplexing capability of Rayleigh scattering-based distributed fiber optic crack sensing based on single-point crack model experiment results was proposed.The multiplexing capabilities of two kinds of typical hydraulic engineering concrete crack fiber optic monitoring programs were obtained.Combined with the cracks occurring near the upstream face of the Three Gorges Project spillway dam section,the engineering applicability of the multiplexing capability of the fibre optic crack sensing was analysed, and the significance of the investigation of large engineering structures distributed fiber optic crack sensing multiplexing capability was further demonstrated.更多还原