A construction method for inner penetration of long-distance curved steel pipes
A construction method and long-distance technology, applied in the direction of pipeline laying and maintenance, pipes/pipe joints/pipe fittings, machinery and equipment, etc., can solve the problems of inconvenient construction of long-distance curved pipeline repairs, and achieve easy control of construction quality and ensure welding. The effect of quality, obvious economic benefits
Active Publication Date: 2022-03-22
SHENZHEN MUNICIPAL ENG +1
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[0004] The purpose of the present invention is to provide a long-distance curved steel pipe inner penetration construction method, which aims to solve the problem of inconvenient repair and construction of long-distance curved pipes in the prior art
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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0031] In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. Construction and operation, so the words describing the positional relationship in the drawings are only for illustrative...
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The invention relates to the technical field of steel pipe inner penetration construction, and discloses a long-distance curved steel pipe inner penetration construction method, which includes the following construction steps: S1 survey and measurement inside the original pipe; use CCTV endoscopic and 3D scanning equipment to measure and scan the pipeline, each Measure a cross-section at intervals of 5m, measure the elevation, axis, and longitudinal deformation of the pipeline bottom, and draw a pipeline diagram, and observe and understand the internal structure of the lumen, the deformation of the pipe joint (socket) and the axis of the pipeline after the pipeline is out of service; S2 Preparations before installation of inner-piercing steel pipes; including identifying underground pipelines, determining the location of working wells, installation of equipment, and cleaning inside of pipes; S3 Construction of long-distance curved inner-piercing steel pipes: S4 Welding and testing of pipes; S5 Inspection of original concrete pipe sections and The annular seam of the inner steel pipe shall be grouted and sealed; S6 hydrostatic test and flushing and disinfection.
Description
technical field [0001] The invention relates to the technical field of steel pipe inner penetration construction, in particular to a long-distance curved steel pipe inner penetration construction method. Background technique [0002] After many years of operation of various pipelines, due to corrosion, poor operation management and other reasons, various damages and leakages will inevitably occur, which will bring serious economic losses. The project period is long. How to restore the safe operation of the pipeline economically, efficiently and quickly has received great attention at home and abroad, so the research on pipeline repair technology is of great significance. [0003] For the repair of urban pipelines, especially for the repair of long-distance curved pipelines, the existing technology is to use the direct excavation construction method or lining method to repair the curved section, but when the pipeline is in a busy road section and the conditions for excavatio...
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IPC IPC(8): F16L1/036F16L1/09F16L1/11
CPCF16L1/036F16L1/09F16L1/11
Inventor 龙桂华欧阳枧胡鹰志黄春潮章程鹏罗伟谭学红吴惠添黄文春
Owner SHENZHEN MUNICIPAL ENG