Traditional Culture Encyclopedia - Photography and portraiture - The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched soon.

The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched soon.

The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched soon.

The overall salvage of the Changjiang Estuary No.2 ancient ship will be officially launched soon. It is planned that in the middle and late August, the "Dali" will set sail again to the site of the ancient ship site, formally carry out the overall salvage construction of the ancient ship, let the ancient ship out of the water as soon as possible, and solve many mysteries contained in the ancient ship. The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched soon.

The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched soon. 1 The world's first special engineering ship for integral salvage of ancient ships has been completed and delivered, and the archaeological work of the Yangtze River Estuary No.2 ancient ship has entered the "fast lane".

On July 6, the main operating ship "Dali" of the Yangtze River Estuary No.2 ancient ship overall relocation project returned to Hong Kong after completing the pretreatment stage of the ancient ship site; On July 15, the special salvage engineering ship "Endeavour" customized for the overall migration of ancient ships was manufactured in Nantong and returned to Shanghai for delivery. The return of "Dali" and "Struggle" to Hong Kong marks the entry into the "fast lane" of China's major underwater archaeological project-the overall salvage and relocation project of the Yangtze River Estuary No.2 ancient ship.

In March of this year, shortly after the protection of archaeological relics of the No.2 ancient ship in the Yangtze River estuary was officially launched, it suffered an epidemic, which had a certain impact on the whole work progress. Under the guidance of National Cultural Heritage Administration, the Municipal Bureau of Culture and Tourism, together with the Shanghai Salvage Bureau of the Ministry of Transport and other departments and units, will promote the project to resume work in a strict and orderly manner on the premise of ensuring work quality and construction safety through resource integration and optimization. On May 9, the special-shaped curved beam resumed processing and production.

On June 1 day, the "Dali" left port and went to the submerged waters of the No.2 ancient ship in the Yangtze River estuary for pretreatment. Professionals in the fields of archaeology, diving, geophysical prospecting and salvage engineering, after 35 days and nights of continuous fighting, accurately located the boundary and buried depth of the ancient ship, rechecked the length of the ancient ship about 38. 1 m, and confirmed that the bow was facing south.

In strict accordance with the norms of underwater archaeological work, the scattered cultural relics in the design sinking area of curved beam top beam end plate frame were archaeological cleaned up, and scattered cultural relics such as rudder (rudder and rudder rod), iron anchor, cable, building materials, teapot and so on were extracted, which avoided the loss of scattered cultural relics in the subsequent overall salvage stage of ancient ships to the greatest extent and ensured the integrity of ancient ship information.

In late June, the site personnel completed the multi-beam fine scanning survey of the ancient ship under the scorching sun, determined the sinking position of the curved beam end plate, and pre-dug two sinking grooves of the end plate with a length of 20m, a width of 1.3-3m and a depth of more than 3m, which eliminated potential obstacles for the subsequent sinking construction of the whole salvage end plate.

On July 5, at the site of the ancient ship site, "Dali" completed the sinking of four positioning piles with high quality. According to the survey of the positioning personnel, the verticality of the positioning pile is less than 0.5%, and the absolute position error is less than 3 1cm. Both the absolute position and verticality meet the design requirements, marking the successful completion of the pretreatment stage of the overall migration of the Yangtze River Estuary No.2 ancient ship.

In order to ensure the safe and complete overall salvage and relocation of the No.2 ancient ship in the Yangtze River estuary, the Municipal Bureau of Culture and Tourism and the Shanghai Salvage Bureau of the Ministry of Transport creatively designed a brand-new special salvage engineering ship and named it "Strive".

The "Struggle" wheel, which integrates hoisting, transportation, docking and unloading, has a moon pool opening like a kangaroo's mother's pocket and protects the hull, accessories and cultural relics of ancient ships, which plays a fundamental and key role in subsequent archaeological excavations and cultural relics display and utilization.

The insiders believe that "Endeavour" not only has the function of protecting ancient ships and cultural relics on board, but also has many advantages such as high safety, strong operability and high technology content. This hull provides a new idea, a new method and a new mode of integral migration technology for the future research of similar integral migration projects.

After the "Dali" returns to Hong Kong and the "Struggle" is delivered, the overall salvage and relocation project of the No.2 ancient ship in the Yangtze River estuary will be accelerated. After a short rest, the "Dali" will go to the dock of Hengsha Base to assemble the curved beam top beam end plate frame. It is expected to sail to the site of the ancient ship again in the middle and late August, and formally carry out the overall salvage operation of the ancient ship, so that the ancient ship can come out of the water as soon as possible and solve many mysteries contained therein.

The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched on July 15. The special salvage engineering ship "Struggle" customized for the overall relocation of the No.2 ancient ship in the Yangtze River estuary was manufactured in Nantong, Jiangsu, and returned to Shanghai for delivery. Previously, the main operation ship "Dali" of the overall migration project of the ancient ship returned to Hong Kong on July 6 after completing the pretreatment stage of the ancient ship site. The return of "Dali" and "Struggle" to Hong Kong marks a significant progress in the overall salvage and relocation project of the Yangtze River Estuary No.2, a major underwater archaeological project in China, which is the core of archaeology and cultural relics protection.

The pretreatment stage of the overall migration of the ancient ship was successfully completed.

In March this year, the protection of archaeological relics of the No.2 ancient ship in the Yangtze River estuary was officially launched, which was affected by the epidemic. Shanghai Municipal Bureau of Culture and Tourism, together with Shanghai Salvage Bureau of the Ministry of Transport and other departments and units, will promote the project to resume work in a strict and orderly manner on the premise of ensuring work quality and construction safety through resource integration and optimization. On May 9, the special-shaped curved beam resumed processing and production.

On June 1 day, the main operating ship "Dali", which was responsible for the overall relocation of the No.2 ancient ship in the Yangtze River estuary, set sail and went to the sunken waters of No.2 ancient ship in the Yangtze River estuary to carry out pre-salvage cleaning work.

"Dali" works in the waters of ancient ship ruins.

Under the guidance of National Cultural Heritage Administration, Shanghai Cultural Tourism Bureau and Shanghai Salvage Bureau organized professionals in archaeology, diving, geophysical exploration, salvage engineering and other fields. After 35 days of continuous fighting, the boundary and burial depth of the ancient ship were accurately located, and it was determined that the ancient ship was about 38. 1 meter long, 9.9 meters wide and the bow was south.

In strict accordance with the norms of underwater archaeological work, the scattered cultural relics in the design sinking area of curved beam top beam end plate frame were archaeological cleaned up, and scattered cultural relics such as rudder (rudder and rudder rod), iron anchor, cable, building materials, teapot and so on were extracted, which avoided the loss of scattered cultural relics in the subsequent overall salvage stage of ancient ships to the greatest extent and ensured the integrity of ancient ship information.

Scattered cultural relics extracted this time (upper left: rudder (rudder and rudder rod); Top right: Top view of rudder (tiller, tiller), ship plate and building materials; Bottom left: "Secret Orchid" teapot; Bottom right: Four-claw iron anchor comes out of the water)

In late June, the site completed the multi-beam fine scanning survey of the ancient ship under the scorching sun, determined the sinking position of the curved beam end plate, and pre-dug two sinking ditches with a length of 20m, a width of 1.3-3m and a depth of more than 3m, which eliminated potential obstacles for the subsequent sinking construction of the whole salvage end plate.

On July 5, at the site of the ancient ship site, Dali completed the sinking of four positioning piles with high quality. According to the survey by the positioning personnel, the verticality of the positioning piles is less than 0.5%, the absolute position error is less than 3 1cm, and both the absolute position and verticality meet the design requirements, which indicates the successful completion of the pre-treatment stage of the overall migration of the Yangtze River Estuary No.2 ancient ship.

Completion and delivery of the world's first special engineering ship for integral salvage of ancient ships

In order to ensure the safe and complete overall salvage and relocation of No.2 ancient ship in the Yangtze River estuary, Shanghai Cultural Tourism Bureau and Shanghai Salvage Bureau creatively designed a brand-new special salvage engineering ship and named it "Endeavour".

In March this year 10, the "Struggle" started construction in Nantong. On April 12, the keel of the dock was closed. On May 26th, I got into the water and left the dock. Despite the epidemic, it was nearly a month ahead of schedule. Shipped in July 15 and arrived in Shanghai.

Side view of the "struggling" wheel

The "Struggle" is130m long, 34m wide and 9m deep, with a designed draft of 6m. It is characterized by synchronous lifting devices at both ends of the ship, an opening in the middle of the ship and a moon pool with a length of 56m and a width of 20m. This design can directly lift the ancient ship from the bottom of the sea to the moon pool in the middle of the struggling ship, and transport it to the Shanghai Shipyard 1 dock. Only one ship can complete the three tasks of hoisting, transportation and docking, which originally required three ships, which can greatly improve work efficiency and ensure the safety of cultural relics in the construction process.

Top view of endeavour

The "Endeavour", which integrates hoisting, transportation, docking and unloading, has a moon pool opening like the pocket of "Mother Kangaroo", which protects the hull, accessories and cultural relics of the No.2 ancient ship, and plays a fundamental and key role in the simultaneous archaeological excavation and cultural relics display and utilization. "Endeavour" not only has the function of protecting ancient ships and cultural relics on board, but also has many advantages such as high safety, strong operability and high technology content.

The hull is specially designed for the integral salvage and migration project of the ancient ship "Changjiang Estuary No.2", which provides a new idea, opens up a new method and sets up a new model of integral migration technology for the research of the same type of integral migration project in the future.

It is reported that after the "Dali" returns to Hong Kong and the "Endeavour" is delivered, the Shanghai Municipal Bureau of Culture and Tourism will, under the guidance of National Cultural Heritage Administration, accelerate the overall salvage and relocation project of the No.2 ancient ship in the Yangtze River estuary. After a short rest, the "Dali" will go to the dock of Hengsha Base to assemble the curved beam top beam end plate frame. It is planned that in the middle and late August, the "Dali" will set sail again for the site of the ancient ship, and formally carry out the overall salvage construction of the ancient ship, so that the ancient ship can get out of the water as soon as possible and solve many mysteries contained in the ancient ship.

The overall salvage work of the Changjiang Estuary No.2 ancient ship will be officially launched. On July 15, 2022, Interface News learned from Shanghai Culture and Tourism Bureau that the special salvage engineering ship Endeavour, which was customized for the overall relocation of No.2 ancient ship in the Yangtze River estuary, was manufactured in Nantong and returned to Shanghai for delivery.

On July 6th, the main operating ship "Dali" of the overall migration project of the ancient ship returned to Hong Kong after completing the pretreatment stage of the ancient ship site. The arrival of "Dali" and "Struggle" in Hong Kong marks the great progress in the overall salvage and relocation project of the Yangtze River Estuary No.2, a major underwater archaeological project in China, which is the core of archaeology and cultural relics protection.

On March 2nd this year, the largest archaeological and cultural relics protection project at home and abroad-the archaeological and cultural relics protection of the Yangtze River Estuary No.2 ancient ship was officially launched. This is the second time that China has carried out overall salvage and archaeological work on the underwater ancient sunken ship after "Nanhai No.1" in 15.

As a major underwater archaeological project in China, the Changjiang Estuary No.2 ancient ship was included in the "Tenth Five-Year Plan" for cultural relics protection and scientific and technological innovation. The salvage and migration of ancient ships will adopt the world's first "integral migration technology of non-contact cultural relics of curved beams", relying on China's high-end manufacturing capacity. This scheme can protect the authenticity and integrity of underwater cultural heritage to the greatest extent. This is also the first project in the world to implement the underwater salvage, overall migration, archaeological protection and museum planning and construction simultaneously.

In order to ensure the safe and complete overall salvage and migration of No.2 ancient ship in the Yangtze River estuary, Shanghai Salvage Bureau designed a brand-new special salvage engineering ship and named it Endeavour.

In March this year 10, the "Struggle" started construction in Nantong; On April 12, the pier keel was closed; On May 26th, the dock was launched; Despite the epidemic, the "Struggle" ship was officially completed and delivered, and arrived in Shanghai nearly one month earlier than the scheduled date.

The main dimensions of Endeavour are130m long, 34m wide, 9m deep and 6m draught. Its biggest feature is to install synchronous lifting devices at both ends of the ship, which is open in the middle of the ship and has a moon pool with a length of 56m and a width of 20 m.

This design can directly lift the ancient ship from the bottom of the sea to the moon pool in the middle of the struggling ship, and transport it to the Shanghai Shipyard 1 dock. Only one ship can complete the three tasks of hoisting, transportation and docking that originally required three ships, which greatly improves the work efficiency and ensures the safety of cultural relics in the construction process.

The wheel of "struggle" Image source: Shanghai Salvage Bureau, Ministry of Transport

The "Struggle" wheel, which integrates hoisting, transportation, docking and unloading, has a moon pool opening like a kangaroo's mother's pocket and protects the hull, accessories and cultural relics of ancient ships, which plays a fundamental and key role in subsequent archaeological excavations and cultural relics display and utilization.

In March this year, the archaeological relics protection project of the No.2 ancient ship in the Yangtze River estuary was started; On May 9, the special curved beam resumed processing and manufacturing; On June 1 day, the main operating ship "Dali", which is responsible for the overall relocation of the No.2 ancient ship in the Yangtze River estuary, set sail with one key and went to the site of the ancient ship site for pretreatment.

On July 5, at the site of the ancient ship site, "Dali" completed the sinking of four positioning piles. According to the measurement of the positioning personnel, the verticality of the positioning pile is less than 0.5%, the absolute position error is less than 3 1cm, and both the absolute position and verticality meet the design requirements. This marks the successful completion of the pretreatment stage of the overall migration of the Yangtze River Estuary No.2 ancient ship.

After the "Dali" returns to Hong Kong and the "Struggle" is delivered, Shanghai will promote the overall salvage and relocation project of the No.2 ancient ship in the Yangtze River estuary.

After a short rest, the "Dali" will go to the dock of Hengsha Base to assemble the curved beam top beam end plate frame. It is planned that in the middle and late August, the "Dali" will sail to the site of the ancient ship again, and formally carry out the overall salvage construction of the ancient ship, so that the ancient ship can get out of the water as soon as possible and solve many mysteries contained in the ancient ship.