Underwater sealing and diving sealing construction project

Underwater sealing and diving sealing construction projectProfessional qualifications engaged in underwater engineering: underwater plugging, underwater salvage, underwater dismantling, municipal water conservancy engineering, track installation and maintenance, underwater exploration, underwater cutting and welding, bag concrete construction, steel sheet pile cofferdam cutting, sewage pipeline plugging, sewage tank dredging, sedimentation tank cleaning, non drainage sinking of sinking wells and underwater bottom sealing, underwater installation, underwater inspection and maintenance, underwater dredging, port and waterway dredging, underwater laying, underwater leak plugging and other diving services.

Underwater sealing and diving sealing construction projectHaving a diving certificate issued by Shanghai Salvage Bureau and Guangzhou Salvage Bureau, professional divers perform air diving underwater engineering operations at depths of 0-60 meters (deep-sea underwater operations, Yangtze River underwater operations, inland river underwater operations, reservoir underwater operations, caisson underwater operations, sewage pipeline underwater operations, underwater culvert underwater operations, mine underwater operations); Cleaning and dredging of water tanks and waterways in water plants and power plants, cleaning and dredging of pump rooms, laying of underwater pipelines, cleaning and inspection of underwater trash racks, replacement of gate lifting and lowering, diversion tunnels, reservoir dam bodies, and other maintenance and construction work; Installation and welding construction of underwater steel structures and components: underwater anode welding protection, using underwater wet welding, underwater dry welding and underwater CO2 gas shielded welding, underwater electric oxygen cutting, and other methods to carry out underwater installation and dismantling operations on underwater ships, platforms, submarine pipelines, and underwater steel structures.Construction of submarine pipelines and underwater optical cables. Underwater dredging, river dredging, pool dredging, underwater concrete repair and pouring construction: Various reinforced concrete structures are constructed underwater in marine, lake, inland river, reservoir and other water areas, using new underwater materials, equipment, and processes for direct underwater construction. Short construction period, strong reliability, and low overall cost. Underwater sunken ship salvage and underwater object salvage operations. Underwater crack and leakage treatment: Underwater sealing treatment is carried out for cracks and structural leaks in hydraulic structures of reservoir dams in hydraulic power systems. According to the causes, the treatment methods can be divided into two categories: rigid and flexible. Underwater reinforcement: underwater treatment, repair, and reinforcement of underwater steel or concrete structures of hydraulic structures such as reservoirs, dams, coastal inland ports, and docks in water conservancy and power systems. Underwater plugging, sewage pipeline plugging, sewage pipeline plugging, sewage pipeline plugging, sewage pipeline closure engineering, reservoir dam plugging, and gate plugging. Inspection of water tanks, pipes, and reservoirs in municipal drinking water systems Inspection of sewage pipelines, drainage pipelines, and underwater pipelines, inspection of underwater pipelines, and photography of underwater pipeline surveys. Inspection of underwater oil pipelines in the ocean; testing. Construction, fabrication, sinking, and sealing of sunken wells. Construction of pile foundation platform for underwater wharf, production and installation of steel casing, steel box suspension box, rental of Bailey beam support, and pulling of Larson steel sheet piles on water Leasing of berets, cranes, various types of steel and steel pipes, vibration hammers, floating cranes, transport ships, and winches Installation, dismantling, cutting, and salvaging of steel sheet pile cofferdams on water. Various deep foundation pit excavation and support, pipeline installation and welding, sewage engineering, soft foundation treatment

Underwater engineering projects

1： Diving demolition, dredging of water tanks and waterways in water plants and power plants, cleaning and dredging of pump rooms, laying of underwater pipelines, cleaning and inspection of underwater trash racks, replacement of gate lifting and lowering, diversion tunnels, and reinforcement of reservoir dam bodies for maintenance and construction.
2： Installation and welding construction of underwater steel structures and components: underwater anode welding protection, using underwater wet welding, underwater dry welding and underwater CO2 gas shielded welding, underwater electric oxygen cutting, explosive cutting and other methods to carry out underwater installation and dismantling operations on underwater ships, platforms, submarine pipelines and underwater steel structures.
3： Construction of submarine pipelines and underwater optical cables.
4： Underwater dredging, river dredging, water tank dredging, sedimentation tank dredging, biological tank dredging, sewage pipeline dredging, sewage pipeline cleaning, reservoir gate dredging, sewage tank dredging, and sinking well dredging.
5： Underwater concrete repair and pouring construction: Various reinforced concrete structures are constructed underwater in waters such as oceans, lakes, inland rivers, and reservoirs, using new underwater materials, equipment, and processes for direct underwater construction. Short construction period, strong reliability, and low overall cost.
6： Underwater sunken ship salvage and underwater object salvage operations.

7： Underwater crack and leakage treatment: Underwater sealing treatment is carried out for cracks and structural leaks in hydraulic structures of reservoir dams in hydraulic power systems. According to the causes, the treatment methods can be divided into two categories: rigid and flexible.
8： Underwater reinforcement: underwater treatment, repair, and reinforcement of underwater steel or concrete structures of hydraulic structures such as reservoirs, dams, coastal inland ports, and docks in water conservancy and power systems.
9： Underwater plugging, sewage pipeline plugging, sewage pipeline plugging, sewage pipeline plugging, sewage pipeline closure engineering, reservoir dam plugging, and gate plugging.
10： Inspection of water tanks, pipes, and reservoirs in municipal drinking water systems
11： Inspection of sewage/drainage pipelines, underwater pipelines, inspection of underwater pipelines, and photography of underwater pipeline surveys.
12： Inspection, testing, and exploration of underwater oil pipelines in the ocean.
13： Construction, fabrication, sinking, sealing, and dredging of sunken wells.

Henglong Underwater Engineering Co., Ltd. is known for its excellent diving personnel *The technical equipment High quality service Efficient service efficiency Passionate service attitude, based on the national market, providing high-quality diving services to all customers in the Yangtze River Delta region.

*Obtained the second level qualification for underwater operation safety from the Jiangsu Provincial Administration of Work Safety, the second level professional qualification for China's underwater marine construction system, the second level professional contracting enterprise for underwater maintenance and installation engineering in Jiangsu Province, and the certificate of contract abiding and trustworthy enterprise issued by the Yancheng Administration for Industry and Commerce. Since its establishment, the company has carried out more than a thousand underwater engineering operations for industries such as power and water conservancy, shipping, and port, and has won a good reputation. We specialize in underwater engineering, mainly undertaking diving demolition, dam plugging, underwater anti-corrosion, underwater installation, underwater salvage, underwater cutting, underwater welding, diving operations, caisson construction, underwater plugging, underwater demolition, underwater construction, underwater supervision of caisson sinking and bottom sealing, underwater photography, underwater inspection and maintenance, pipeline plugging and other businesses.

We undertake various underwater engineering businesses year-round, with a professional underwater construction team and years of experience in underwater (diving operations) construction. With high-quality and affordable services and second level qualifications, we are your ideal choice for solving underwater engineering difficulties. With the development of society and the continuous advancement of science and technology, all employees of our company, who have been baptized by fierce market competition, keep up with the pulse of the times, adhere to the management philosophy of excellent technology and quality-oriented, constantly innovate, consider customers, and do standard engineering The company has grown from small to large and from weak to strong, providing long-term services throughout the country, offering high-quality and affordable services for various underwater diving projects, tracking services, and implementing three guarantees. Always adhere to the principle of 'honesty first, quality first', and continuously expand and win the market with * technology, * quality, satisfactory service, and good reputation.
Construction performance: underwater cutting of concrete piles and crushing of concrete abutments for the Shunshui River crossing pipeline in Yuyao; Underwater concrete cleaning, underwater steel bar cutting, and underwater mud flushing project for Sidong Sluice in Linshan Town, Yuyao; Installation of airbags for the 1.8-meter circulating water pipeline at Qingdao Power Plant; Underwater cutting project of concrete anti erosion steel plate at the bottom of the gate of Xiangcheng County Hydropower Station in Ganzi Prefecture; Underwater dismantling of cement piles at Liuhengdao Wharf; Underwater cutting of concrete piles for the renovation of Zhenjiang Oil Depot Terminal; Underwater cutting project of concrete wall at Binhai Salt Transport Terminal; Qingdao Power Plant Sinking Construction Project, Jiamusi Sewage Treatment Plant Sinking Construction Project.

Henglong Company has offices in the East China region across the country South China region Central China region North China region Northwest region We can meet the needs of your company and arrive on site on the day of receiving the call, providing satisfactory construction plans and product quotations. We hope to have a pleasant cooperation with your company and achieve mutual benefits!

We are a joint-stock legal entity specializing in underwater dismantling, installation, plugging, maintenance, drilling, salvaging, filming, exploration, flaw detection, welding, cutting, dredging, testing, inspection, leveling, guiding the development of construction plans, underwater dismantling technology certification, and underwater dismantling technology training.

Having: Level 1 safety construction qualification, Level 2 diving engineering construction qualification, diving construction personnel holding the "Diving Operation Certificate" issued by the Ministry of Labor, and all participating in life insurance, to ensure the safety of the construction unit.
Safety responsibility: If this project is contracted by our labor service, we will prepare and implement construction safety measures. If there are any safety issues or responsibilities during the project process, we will bear them and have nothing to do with Party A.

Henglong Company utilizes * technology Professional team, rigorous management, excellent equipment