Pre-stress concrete reinforced pipe with water-resistant ring on bellmouth

Abstract

The invention relates to a pre-stress concrete reinforced pipe with a water-resistant ring on a bellmouth, which comprises a bellmouth, a faucet, a reinforcement cage, a concrete pipe core, a pre-stress steel wire and a protection layer. The bellmouth and the faucet are respectively made at both ends of the concrete pipe core; the reinforcement cage is coaxially embedded in the concrete pipe core, the outer wall of which is wound by the pre-stress steel wire; and the protection layer is fixedly mounted on the pre-stress steel wire and the outer wall of the concrete pipe core, wherein the water-resistant ring is fixedly mounted on the bellmouth in the concrete pipe core. The invention has simple whole structure, scientific and reasonable design, stronger impermeability, lower cost and convenient mounting and can effectively resist the internal water pressure increase of the pre-stress concrete reinforced pipe with the water-resistant ring on the bellmouth.

Description

technical field [0001] The invention relates to concrete pipes, in particular to a prestressed reinforced concrete pipe with a water blocking ring on the socket. Background technique [0002] At present, concrete pipes are often used in municipal, water conservancy, electric power, and urban water supply and drainage systems, and steel socket prestressed concrete pipes occupy a large market in the application of large-diameter concrete pipes, and their advantages are obvious, such as: 1. It has a good ability to resist external pressure load and internal water pressure; 2. The connection process of the steel socket is simple and convenient for construction; 3. It has a good ability to resist uneven settlement, etc. The advantages of the above-mentioned pipes are inseparable from their specific structures. This kind of pipe structure includes: sockets, sockets, steel skeletons, concrete pipe cores, prestressed steel wires and protective layers. The sockets and sockets are fix...

AI Technical Summary

Problems solved by technology

The advantages of the above-mentioned pipes are inseparable from their specific structures. This kind of pipe structure includes: sockets, sockets, steel skeletons, concrete pipe cores, prestressed steel wires and protective layers. The sockets and sockets are fixed on both ends of the concrete pipe cores. The steel skeleton is coaxially embedded in the concrete pipe core, the prestressed steel wire is wound on the outer wall of the concrete pipe core, and the protective layer is fixed on the prestressed steel wire and the outer wall of the concrete pipe core. The pipe has certain advantages, but in practical application, it is necessary to set the strength of the concrete pipe core and the pitch of the winding steel wire according to the working conditions to adapt to different internal water pressure values. When the strength of the concrete pipe core and the pitch of the winding steel wire are constant, If the internal water pressure increases by 0.1Mpa on the upper line of the standard range, the concrete pipe core will leak, and most of the leakage will occur at the joint between the concrete and the steel socket. If it is solved by improving the strength of the concrete and increasing the pitch of the winding steel wire The leakage problem at the pipe socket will greatly increase the production cost, and the profit margin of the enterprise will be reduced accordingly, which will affect the economic benefits of the enterprise

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