Underwater pipeline installation method and safety measures
Main construction methods for underwater pipeline installation: construction ship equipment approach, positioning steel pipe pile, water pipe on-site splicing, piling ship hitting, steel pipe pile, underwater engineering construction plan, diver underwater installation pile-cap, beam, pipe branch Scuba diver underwater installation overhead - section water pipe head, water pipe section diver underwater installation hoop water head around the riprap dredger approaching excavation basement diver underwater bed leveling diver underwater installation water pipe Fill the gravel material weekly and backfill the underwater take-up head.
Construction vessels entering the site: After handling the various construction approval procedures, cranes, piling vessels, deck barges, and car cranes enter the construction site at the same time. The car is suspended on the shore to assist the steel pipe piles and to take water from the company. The welding personnel weld the steel pipe piles and the water pipes, and lift the welded steel pipe piles to the deck barges to transport the steel pipe piles and the water pipes to the designated positions. Barge transports steel pipes. 
Underwater pipeline installation technology management measures:
(1) Develop a practical and special program. Report to the company for approval and report to the supervision engineer for approval. Construction can be carried out after approval by the rational engineer. Once the construction organization design has been approved, it shall not be easily changed at will.
(2) Strictly follow the construction procedures and fully implement the construction technology.
(3) Before the commencement of the construction of the project, the project manager or the technical person in charge shall conduct a comprehensive disclosure to all employees. The contents of the submission are as follows:
1) Brief description of the project;
2) General schedule of construction (including Party A's requirements)
; 3) the key point of the project and the construction method;
4) Quality target requirements and technical measures for major construction.
(4) Before the construction of the team is handed over to the bottom of the construction by technical personnel, it should be stated:
1) specific tasks and schedule requirements;
2) Construction methods and quality standards;
3) Technical safety operation procedures and construction sequence;
4) Process handover methods and precautions.
(5) Implement a quality management policy that focuses on prevention, self-inspection, and prevention. Before the construction, special technical personnel will issue quality standards, inspection methods and record formats. The original records and inspection records are kept in the construction, and they are handed over and saved as one of the completed materials.
(6) If the concealed project comes from inspection, it should also promptly inspect the inspection and acceptance of the supervision engineer. Every time a project is completed, it is necessary to fill in the inspection and acceptance information, so that the completion data of the project is complete.
(7) The project department will collect one day at the end of the month to organize relevant personnel to carry out work inspections for technical groups, measurement groups and other departments and teams, and focus on the inspection of original materials to prevent the occurrence of incomplete data during completion.
(8) The technical personnel study the company's "Construction Technology Management Measures" and "Quality Management Measures" and apply them to the construction of the project.
(9) The measurement plane control network point and the engineering control point are periodically retested, and the problem is corrected in time.
(10) The technical person in charge of the project department organizes relevant workers to study hard, familiar with the construction drawings, understand the design intent, and organize participation in the design meeting.
In order to make the roof waterproofing layer meet the requirements of normal use requirements, a waterproof layer with separate waterproof ability is used to dip the asphalt with a carcass material such as base paper, fiber fabric or fiber mat, and the surface is sprinkled with powder, granular or flake material. Curable sheet-like waterproof material, which is made of synthetic polymer modified asphalt as a coating layer, and the fiber fabric or fiber mat is made of a carcass, powder, granule, sheet or film material as a covering material to form a curlable sheet Waterproof material. Cracks in concrete buildings are the main cause of damage to concrete buildings. Crack leakage is the most problematic problem. Therefore, it is necessary to use expansion joints to block leaks. The internal cracks are completely irregular. The traditional method of plugging is to cut the crack or water leak and perform surface plugging, but the result is often blocked here, and leakage begins again.
Contact: Shen Manager
phone
Company: Jiangsu Huahang Underwater Engineering Co., Ltd.
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