Distributed temperature measuring optical fiber laying and burying process for concrete dam

Abstract

The invention relates to a distributed temperature measuring optical fiber laying and burying process for a concrete dam. The process comprises the following steps: formulating a staged overall arrangement scheme and a single casting silo fiber laying scheme of a distributed optical fiber temperature sensing (DTS) system; preparing the work before the optical fiber buried construction; completingthe optical fiber general warehouse buried construction of the warehouse surface; completing the on-site protection after the optical fiber is buried; and carrying out the daily protection and maintenance of the distributed optical fiber temperature sensing (DTS) system. This construction process lays the foundation for the effective application of distributed temperature measurement optical fiberin concrete dam engineering, and ensures a high embedding survival rate of the optical fiber, better optical fiber layout and buried construction technology, and a more stable and efficient distributed optical fiber temperature measurement system, thereby ensuring that the distributed optical fiber temperature sensing (DTS) system continuously, automatically and linearly monitors the spatio-temporal distribution of the internal temperature of the concrete in real time and online.

Description

technical field [0001] The invention belongs to the technical field of concrete dam construction, and in particular relates to a concrete dam distributed temperature measuring optical fiber laying and embedding construction technology. Background technique [0002] The internal temperature monitoring of concrete dams is of great significance in the whole life cycle of construction-initial impoundment-operation period. During the construction period of concrete dams, various temperature control measures are generally taken to prevent temperature cracks from forming unfavorable temperature stress inside the dam body and ensure the safety of the dam. Practice has shown that timely and accurate acquisition of temperature data inside the dam concrete is the key to temperature control of mass concrete. [0003] There are many methods for monitoring the internal temperature of dam concrete, and the distributed optical fiber temperature measurement technology stands out. Compared ...

AI Technical Summary

Problems solved by technology

[0005] At present, there are no systematic and mature research results on the deployment of distributed temperature measurement optical fibers and the buried construction technology of concrete dams.

At the same time, the application of distributed temperature measurement optical fiber in the temperature monitoring of the whole life cycle of concrete dam projects is still less, and the practicality and applicability need to be further improved

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