Super large caliber centripetal stress high pressure water transport pipe and its preparing process
A centripetal stress, super-large diameter technology, which is applied in the field of super-large diameter centripetal stress high-pressure water pipes and their preparation, can solve the problems of axial cracks, inability to produce high-pressure water pipes, and joint leakage, and achieves enhanced shear resistance. Effect
Inactive Publication Date: 2007-06-27
衡水富中达管道有限公司
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Problems solved by technology
[0002] At present, prestressed concrete water pipes produced by traditional technology cannot produce high-pressure water pipes with an inner diameter of more than 3 meters due to the limitation of technology and preparation conditions.
The PCCP prestressed steel cylinder water pipe produced by the introduction of foreign technology can only produce pipes with an inner diameter of 4 meters due to the limitations of the process and preparation conditions. Because the pipe mouth adopts a socket-type interface that cannot meet the fully closed standard, it will cause water leakage at the interface. In addition, there will be axial cracks in deep burial, and because of the high cost, it is not suitable for large-scale, large-scale and large-area water diversion projects.
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[0037] As shown in accompanying drawing 1,2, the present invention comprises concrete pipe body 1 and is arranged on the cylindrical skeleton 5 that is made of longitudinal bar 3 and ring bar 2 in the pipe body 1, is uniformly fixed on the cylindrical skeleton 5 The oblique bobbin 9 arranged in a longitudinal twist with the central axis of the cylindrical skeleton 5 and the twisting direction is opposite, and the oblique bobbin 9 with the opposite twisting direction forms a bobbin network on the cylindrical skeleton 5, The inclined tube 9 is provided with a prestressed steel strand 7 fixed by anchors 11 at both ends of the tube body 1 .
[0038] As shown in accompanying drawing 1, 2, the present invention is provided with in the cylindrical skeleton 5 in the concrete pipe body 1 the inner layer cylindrical skeleton 6 that is made by longitudinal rib 3 and ring rib 2, inner layer cylindrical A longitudinal bobbin 8 is fixed on the frame 6, and a prestressed steel strand 7 fixed...
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Abstract
The super large caliber centripetal stress high pressure water pipe has cylindrical skeleton of longitudinal ribs and ring ribs, the cylindrical skeleton has oblique barrels with pre-stressed steel strand. The super large caliber centripetal stress high pressure water pipe is produced through making bearing positioning platform, installing skeleton and barrels, depositing concrete, tensing and anchoring steel strands and connecting steel strands of different sections. The present invention can bear the inside and outside pulling stress without cracking, and has effectively raised shearing and bending resistance.
Description
technical field [0001] The invention relates to a super-large radial radial stress high-pressure water delivery pipe and a preparation process thereof. Background technique [0002] At present, prestressed concrete water pipes produced by traditional technology cannot produce high-pressure water pipes with an inner diameter of more than 3 meters due to the limitation of technology and preparation conditions. The PCCP prestressed steel cylinder water pipe produced by the introduction of foreign technology can only produce pipes with an inner diameter of 4 meters due to the limitations of the process and preparation conditions. Because the pipe mouth adopts a socket-type interface that cannot meet the fully closed standard, it will cause water leakage at the interface. Moreover, axial cracks will appear in deep burial, and because of the high cost, it is not suitable for large-scale, large-scale, large-area water diversion projects. The applicant for this patent (the original...
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IPC IPC(8): F16L9/08B28B21/60
Inventor 张楸长孙忠连张双久
Owner 衡水富中达管道有限公司