Prestressed pipeline segment suitable for detecting and monitoring grouting quality in pipeline

Abstract

The invention relates to a prestressed pipeline segment suitable for detecting and monitoring grouting quality in a pipeline. The prestressed pipeline segment comprises a standard prestressed pipeline, a reserved transparent pipeline, a pinhole probe and a haulage rope, wherein the standard prestressed pipeline is used for allowing a prestressed steel tendon to pass, and is placed in an outer concrete component when utilized; the reserved transparent pipeline is composed of a bent section and a linear section which are connected; the bent section is positioned in the standard prestressed pipeline; the linear section is positioned outside the standard prestressed pipeline; the pinhole probe is positioned in the reserved transparent pipeline, and is used for detecting and monitoring grouting quality in the standard prestressed pipeline; the haulage rope is used for pulling the pinhole probe to pass in the reserved transparent pipeline; the haulage rope penetrates from one end of the reserved transparent pipeline and penetrates out of the other end of the reserved transparent pipeline; the two ends of the haulage rope are tied together, so that a ring type rope is formed; and the pinhole probe is connected to the haulage rope. Compared with the prior art, the prestressed pipeline segment has the advantages that grouting quality in the prestressed pipeline can be intuitively detected and monitored, cost is low, reliability is high, and long-term monitoring can be achieved.

Description

technical field [0001] The invention belongs to the technical field of prestressed concrete bridges, and in particular relates to a prestressed pipeline segment suitable for detecting and monitoring the grouting quality inside the pipeline and a manufacturing method. Background technique [0002] Prestressed concrete bridges account for a large proportion of existing small and medium bridges, and play a pivotal role in highways, railways and municipal bridges. However, the construction period of prestressed concrete bridges is long, the construction quality is difficult to guarantee, and the maintenance work of bridges during operation has great restrictions. [0003] Prestressed tendons are the lifeline of PC bridges, and prestressed pipes are the basic components for internal prestressing and the protective layer of prestressed tendons. At present, metal or plastic corrugated pipes are often used in prestressed pipes during construction. After years of use, the following ...

AI Technical Summary

Problems solved by technology

Infrared thermal imaging technology takes a long time and is inconvenient to use in actual detection and monitoring work. Pasting strain gauges is labor-intensive and time-consuming, and is prone to failure. Shock echo method requires more sophisticated detection and monitoring equipment, and the cost is high

Images