Prestressed reinforced concrete pipe with plastic inner lining barrel spigot

Abstract

The invention relates to a bell and spigot initial stress concrete reinforced pipe with a plastic inner lined cylinder, which is composed of a bell mouth, a spigot mouth, a concrete pipe core, an prestressed steel wire and a protective layer, the bell mouth and the spigot mouth are respectively coaxially mounted at two ends of the concrete pipe core fixedly, the prestressed steel wire is wound around the outer wall of the concrete pipe core, the protective layer is fixedly mounted on the outer wall of the pipe core, and wherein a plastic inner lined cylinder is coaxially mounted on the inner wall of the concrete pipe core fixedly. The prestressed concrete reinforced pipe is simple in integral structure, scientific and reasonable in design, and relatively fine in impermeability and noncorrosibility, resists uneven settleability, and further is low in raw materials cost and construction cost, simple in construction technique and convenient in maintenance and repair, and relatively high in creativity.

Description

technical field [0001] The invention relates to a concrete pipe, in particular to a prestressed reinforced concrete pipe with a plastic inner sleeve socket. Background technique [0002] With the strengthening of infrastructure construction in our country, the demand for pipes is also increasing, especially for long-distance water delivery pipes. At present, in my country's long-distance water transmission pipelines, concrete pipes account for a large proportion, and the cores of concrete pipes are mostly cast in reinforced concrete. Among them, the impermeability of the pipe body is poor, and the socket socket made of concrete is weak in resisting the settlement of the foundation. After searching, it is found that a PCCP pipe is based on the existing concrete pipe, and its pipe core is The thin steel cylinder is coaxially embedded inside, and the two ends of the thin steel cylinder are welded to the steel socket and socket, which can meet the requirements of good impermeabil...

AI Technical Summary

Problems solved by technology

At present, in my country's long-distance water transmission pipelines, concrete pipes account for a large proportion, and the cores of concrete pipes are mostly cast in reinforced concrete. Among them, the impermeability of the pipe body is poor, and the socket socket made of concrete is weak in resisting the settlement of the foundation. After searching, it is found that a PCCP pipe is based on the existing concrete pipe, and its pipe core is The thin steel cylinder is coaxially embedded inside, and the two ends of the thin steel cylinder are welded to the steel socket and socket, which can meet the requirements of good impermeability, but today, the steel is increasing, which increases the The cost of raw materials also makes the manufacturing process very complicated, and the socket and socket of the pipeline are made of steel, which need to be treated with anticorrosion before the pipeline is buried, which greatly increases the cost of labor and raw materials. Long-term underground laying, the steel cylinder will also be corroded, resulting in high repair and maintenance costs, and the pipe body is heavy, and the transportation and construction costs are high

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