Large flow centripetal-stress sewage-treating pipeline and its production process

Abstract

The present invention is large flow centripetal stress sewage-treating pipeline and its production process. The pipeline includes a concrete pipe body and a cylindrical skeleton comprising ring ribs and longitudinal ribs inside the pipe body. The cylindrical skeleton consists of an outer layer skeleton and an inner layer skeleton, the outer layer skeleton has ring tube, the inner layer skeleton has longitudinal tube, and between the outer layer skeleton and the inner layer skeleton, there are reserved holes, ring tube, longitudinal tube, twisted steel cables inside the holes and anchoring devices fixed in the ends of the pipe. In the parallel connection part between two pipes, there is a triangular connecting frame to connect outer layer skeletons of two adjacent pipes. The present invention connects two or more pipes in parallel to form great area bearing structure system capable of resisting the invasion of various kinds of pollution sources and possessing raised shear resisting, twisting resisting, displacement resisting, deposition resisting and pollution resisting performance.

Description

technical field [0001] The invention relates to a large flow centripetal stress pollution control pipeline and a preparation process thereof. technical background [0002] The pre-tensioned prestressed cement pipe produced by the traditional process is limited by the process and preparation conditions, and the inner diameter of the pipe is less than 3 meters. The PCCP prestressed steel cylinder concrete pipe produced by the introduction of foreign technology is also subject to the process and preparation conditions. The restricted inner diameter is also no more than 4 meters. PCCP pipes are also manufactured in three processes, and the pipe mouth cannot meet the fully closed standard. After deep burial, circumferential cracks will appear, and axial cracks will appear in the tension areas on both sides. PCCP is also very expensive because of its high cost. This is not suitable for large-scale, large-scale, regional water transfer projects. [0003] The east and middle route...

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Problems solved by technology

[0003] The east and middle routes of the South-to-North Water Diversion Project have many industrial pollution areas and river sewage areas along the route. Hundreds of rivers, dozens of railways and highways must be crossed along the route, and there are many high-incidence earthquake areas and coal mine goafs. , there are many low-lying and large fills, many densely populated areas, and several high-cold and frozen areas. If the traditional technology is used to open open channels on flat ground, build square culverts across rivers and roads, and build aqueducts on low-lying land, the project cost is high. , will waste a huge amount of money, and is likely to form a "scale project"

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