Humping launching and overwater hauling in-place construction method for sea discharge pipeline in sewage sea area
A construction method and technology in sea areas, applied in tugboats, pipeline laying and maintenance, pipes/pipe joints/fittings, etc., can solve the problems of difficult paving process and long mileage, so as to ensure the quality of underwater installation and reduce damage , The effect of ensuring construction safety
Active Publication Date: 2021-04-30
CCCC THIRD HARBOR ENG +2
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Problems solved by technology
The pavement of deep-sea sewage pipelines is generally long in mileage, and the paving process is difficult
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[0044] The present invention will be further described below in conjunction with accompanying drawing.
[0045] see Figures 1 to 10d According to the present invention, the construction method for slid-down and offshore haulage of sewage sea drainage pipes includes the slid-down process of the pipeline, the process of hauling the pipeline on water, and the process of delivery to a crane ship.
[0046] The following steps are included when the pipeline is slipped into the water:
[0047] Step 1, set up the pipeline welding platform and pipe joint splicing platform (see Figure 1 to Figure 3 ) is erected on the sandy beach of the coast and includes multiple sets of welding platforms 1 and slide ramps 3 arranged at intervals along the coastline;
[0048] The welding platform 1 includes an inner load-bearing pile 11, an outer load-bearing pile 12 and a platform beam 10; wherein, a groove is provided on the top surface of the inner load-bearing pile 11, and an I-beam 130 is embe...
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The invention discloses a humping launching and overwater hauling in-place construction method for a sea discharge pipeline in a sewage sea area. The method comprises a pipeline humping launching process, a pipeline overwater hauling process and a crane ship delivery process. When the pipeline humping launching process is carried out, the pipeline humping launching process comprises the steps of S1, erecting a pipeline welding platform; S2, pipeline joint splicing; S3, mounting pipeline accessories; S4, binding a pipeline hoisting steel wire rope; S5, launching the pipeline. When the pipeline overwater hauling process is carried out, a main towboat, an auxiliary towboat and two anchoring boats are adopted for hauling; and the main towboat adopts a semi-rotary towboat, and the auxiliary towboat adopts a full-rotary towboat and is used for controlling the direction of a pipeline. When the crane ship delivery process is carried out, the process is suitable to be completed in high tide, and lasts for 2 hours at most after the high tide; and the delivered crane ship comprises a large crane ship and a small crane ship. According to the construction method, each section of sea discharge pipeline can be safely and stably hauled to an immersed pipe area, and the construction efficiency is greatly improved.
Description
technical field [0001] The invention relates to a construction method for slid down into the water and hauled in place at sea for a sea discharge pipe in a sewage sea area. Background technique [0002] Sewage bay discharge is a form of sewage discharge in which the sewage discharge outlet is located in the bay and discharged into seawater. At present, the sewage discharge pipeline is gradually developing from the shallow sea to the deep sea. The pavement of deep sea sewage pipelines is generally long in mileage, and the paving process is difficult. [0003] The sea discharge pipe leading from the sewage treatment plant is formed by connecting the land section and the sea section. The sea discharge pipe in the sea area is generally composed of two parts: the discharge pipe and the discharge head. The discharge head is a diffuser pipe and should be far away from the coast. The discharge head is equipped with a discharge vertical pipe to disperse the discharge to ensure tha...
Claims
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IPC IPC(8): F16L1/12F16L1/20F16L1/24B63B35/66
CPCF16L1/12F16L1/20F16L1/207F16L1/24B63B35/66
Inventor 薛宏伟林四新赖银波唐芳明王睿炘叶家辉
Owner CCCC THIRD HARBOR ENG