Method for setting water inlet section of onshore delivery track of large-diameter ultra-long HDPE pipeline
A large-diameter, pipeline-based technology, which is applied in the field of large-diameter and super-long HDPE pipeline land transportation track water entry section, can solve the problems of inconvenient underwater construction, increased cost of trolley procurement, and large construction engineering volume, so as to reduce the project cost. Quantity, saving time cost and economic cost, the effect of safe and efficient shipment
Active Publication Date: 2020-09-29
CCCC FOURTH HARBOR ENG CO LTD
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Problems solved by technology
If the slope ratio of adjacent tracks in the water-entry section of the outbound track changes too much, the buoyancy of the pipeline in the water-entry section is still less than its own gravity because the pipeline in the water-entry section has not yet fully floated, causing the pipe head to fall. The pipeline near the slope change point is suspended and separated from the delivery trolley. At this time, the weight of the suspended pipe section is borne by the delivery trolley at the slope change point, which greatly increases the bearing capacity of the trolley, resulting in a substantial increase in the purchase cost of the trolley. ; and the use of a single track slope or a small change in the adjacent track slope ratio means that the construction of the shipping track is huge, and the underwater construction is inconvenient, which also increases the production cost
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[0027] This part will describe the specific embodiment of the present invention in detail, and the preferred embodiment of the present invention is shown in the accompanying drawings. Each technical feature and overall technical solution of the invention, but it should not be understood as a limitation on the protection scope of the present invention.
[0028] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
[0029] I...
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The invention discloses a method for setting a water inlet section of an onshore shipping track of a large-diameter ultra-long HDPE pipeline. The method ensures safe and efficient shipping of the pipeline, reduces the engineering quantity of a shipping system, is particularly suitable for onshore shipping work of the large-diameter ultra-long high-density polyethylene pipeline, and saves time costand economic cost. The method is applied to the fields of port engineering, traffic engineering and water conservancy projects.
Description
technical field [0001] The invention relates to the fields of port engineering, traffic engineering, water conservancy engineering, etc., and in particular relates to a method for setting a water entry section of a land transportation track of a large-diameter and super-long HDPE pipeline. Background technique [0002] High-density polyethylene pipes (hereinafter referred to as HDPE pipes) are widely used in many fields such as water supply (leading) systems, drainage systems, and gas transmission. HDPE pipelines need to be welded and transported on land. After the pipe section completes the transition from the land state to the water state, the sea floating, sinking, positioning and even docking processes can be carried out to complete the installation of the pipe section. [0003] Large-diameter and super-long HDPE pipes have the characteristics of combining rigidity and flexibility, that is, as the length of the pipe increases, the flexibility of the pipe is gradually ref...
Claims
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Login to View More IPC IPC(8): B65G25/06
CPCB65G25/065B65G2201/0276
Inventor 井阳梁邦炎冯振周陈猛薛林虎周爱军马亿光明谢学文周杨刘凯
Owner CCCC FOURTH HARBOR ENG CO LTD