A construction method for slid into the water and hauled in place at sea for the sea discharge pipe in the sewage sea area
A construction method and sea area technology, applied in tugboats, pipeline laying and maintenance, pipes/pipe joints/pipe fittings, etc., can solve the problems of difficult paving process, long mileage, etc., to ensure the quality of underwater installation and reduce damage , to ensure the effect of construction safety
Active Publication Date: 2022-04-22
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
Method used
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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 construction method for slid-down and offshore haulage of a sea discharge pipe in a sewage sea area, which includes a process for slid-down of the pipeline, a process for hauling the pipeline over water, and a process for delivering the pipeline to a lifting ship. The following steps are involved in the pipeline slid-down process: Step 1, erecting the pipeline welding platform; Step 2, splicing pipe joints; Step 3, installing pipeline accessories; Step 4, binding the pipeline and hoisting the wire rope; Step 5, launching the pipeline. During the water towing process of the pipeline, a main tugboat, an auxiliary tugboat and two anchor boats are used for hauling; the main tugboat uses a semi-rotary tugboat, and the auxiliary tugboat uses a full-turn tugboat to control the direction of the pipeline; carry out delivery lifting During the ship process, it should be completed at high and low tides, and no later than 2 hours after high and low tides; the delivered lifting ships include a large lifting ship and a small lifting ship. The construction method of the invention can safely and securely haul each section of the sea discharge pipeline to the immersed pipe area, greatly improving the construction efficiency.
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