Long-distance curve steel pipe internal penetration construction method
A construction method and long-distance technology, which can be used in pipeline laying and maintenance, pipes/pipe joints/fittings, machinery and equipment, etc. It can solve the problems of inconvenient construction of long-distance curved pipeline repairs, and achieve easy control of construction quality and improvement of construction. Efficiency and cost saving effect
Active Publication Date: 2020-10-30
SHENZHEN MUNICIPAL ENG +1
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Problems solved by technology
[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 internal penetration construction, and discloses a long-distance curve steel pipe internal penetration construction method. The method comprises the following construction steps that S1, original pipe internal investigation and measurement are conducted, specifically, a pipeline is measured and scanned through CCTV endoscopic and 3D scanning equipment, a cross section is measured every 5m, the bottom elevation, the axis and longitudinal deformation of the pipeline are measured, a pipeline diagram is drawn, and the internal structure ofa pipe cavity of the pipeline, deformation of a pipe joint (a bell and spigot) and the pipeline trend axis condition after the pipeline stops running are observed and known; S2, preparation before internal penetration steel pipe mounting is conducted, specifically, underground pipelines are detected, the position of a working well is determined, equipment machines are mounted, and the interior ofthe pipeline is cleaned; S3, long-distance curve internal penetration steel pipe construction is conducted; S4, pipeline welding and detecting are conducted; S5, grouting sealing treatment is conducted on a circular seam of an original concrete pipe section and an internal penetration steel pipe; and S6, hydrostatic testing and flushing disinfection are conducted.
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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Login to View More 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