On the afternoon of the 24th, Beijing time, it was reported that a freighter from Taiwan in China ran aground on the Suez Canal, which blocked the canal and affected the navigation of subsequent ships. Oil prices rose accordingly. At present, this accident has brought certain impact on international shipping and trade. So what rescue measures are available in this kind of shipping accident that can reduce the losses of all parties the fastest and to the greatest extent?

Judging from the situation at the scene, the bow was pushed from the front side until the bulbous nose was all inserted into the embankment of the river, and there should be structural damage. Fortunately, there is no fuel tank in the front car, so there is no pollution at present. The positions of the fuel tanks of the Long-Civil Steamship are currently safe, and the slop tanks are also safe so far. Therefore, its pollution to the marine environment is limited. Regarding the rescue method, the common use of tidal floatation is difficult. The current tide range of the canal is two meters, and the bow of the long-sending ship has a large area on the shore, which reduces the drainage and the difficulty of floating. However, the containers stacked on the Longsong Class A are nearly ten storeys high. The current common barge cranes cannot reach that height. Unless a special large crane is used, and the spreader for lifting the container can only be used, but the degree of automation is low. , Not a few days the bow can not be unloaded. Change the attitude of the ship by pressing the water. After looking at it, they should have taken the posture of the ship, because the stern waterline of the ship has been submerged, indicating that the bow ballast water is now empty and the stern is under pressure. However, the ship is basically fully loaded, with little adjustable ballast water, and the stern rich water depth is limited, so this method can only assist and cannot be successfully rescued. Dredging is the most reliable method, because there was a boat dredging the river not far north of the incident, but there was a problem that the soil under the bow was difficult to dig out. And the common reamer can damage the hull of the ship. However, the Suez Canal was built in the desert, and the riverbed is mostly sand. If high-pressure water is used to impact, this will wash the soil around the hull, and the water flow in the Suez Canal is relatively rapid, which can assist the soil erosion. After the ship is completely floating on the water, use the tug to straighten the posture and tow it back to the anchorage.


By zhiwo

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6 months ago

March 27 The following answer comes from 21st Century Business Herald reporter Shi Yan. Two large tugboats are rushing to the Suez Canal. They are expected to arrive on March 28 to join the rescue team of the stranded container ship Ever Given. Suez Canal service provider Leth Agencies said that the number of ships waiting to pass through the canal has increased to 237. The “Longci” stranded occurred in the early morning of March 23. The ship was suspected of being hit by strong winds, causing its hull to deviate and ran aground. The 400-meter-long hull stuck at both ends of the river embankment, blocking the canal laterally, causing the world’s busiest maritime trade artery to completely block. This is considered to be the worst congestion in the 150-year history of the canal. This fifth day of the shipping crisis has intensified concerns about the global supply chain. Many European companies have warned that goods arriving from Asia will be delayed. The White House said on the 26th that the United States has equipment and capabilities that most countries do not have and is ready to provide assistance at any time. The latest research by the German insurance company Allianz shows that the blockade of the Suez Canal caused by the stranding may cost global trade between 6 billion and 10 billion U.S. dollars per week. The industry predicts that the Japanese owner of the ship Shoei Kisen Kaisha and its insurance company will face a series of major insurance claims. The ship’s insurance company was verified by reporters as the British Shipowners’ Mutual Insurance Association. In view of the failure of previous rescue operations, the prospects for the resumption of the canal are uncertain, and some cargo ships have begun to change course. On the 25th, the sister ship “Naga He” took the lead to turn around and circle the Cape of Good Hope in Africa, which means that it usually takes 7-9 days to sail, an increase of about 5,000 nautical miles, and greater fuel consumption. . The rescue prospects are still unclear. Peter Berdowski, CEO of the Dutch company Boskalis involved in the rescue, said on the 27th that he hopes that the combination of heavy tugboats, dredging the bottom of the vessel and the timing of high tides will rise within a few days And move the stranded ship. The high tide on the evening of the 27th is expected to increase the water level of the canal by 50 cm. “At present, the sand bottom of the river is under tremendous pressure. We may need to reduce the load-including unloading the containers on the ship, discharging some ballast water and fuel to reduce the weight of the ship, coupled with the combination of sand pumping and tug dragging, etc. “Berdowski said, “But the removal of fuel and containers and dredging operations will require additional heavy equipment to be added to the site, which will increase the time required for rescue.” Prior to this, eight tugboats and dredgers continued to operate, trying to float. The stranded “Longci”, but many attempts ended in failure. The “Long Ci” freighter is one of the largest container freighters in the world. It was built in 2018 and registered in Panama. It belongs to the Japanese ship leasing company Shoei Kisen Kaisha and is operated by Taiwan Evergreen Shipping on a charter basis. The ship is 400 meters long and 59 meters wide, and can carry 20,388 standard containers. At a press conference held on the evening of the 26th, the ship’s Japanese owner Shoei Kisen President Yukito Higaki (Yukito Higaki) said that the workers are continuing to clean up the silt to dredge the riverbank and the bottom of the canal, and the ship needs to be stranded. A gap of 50 to 60 feet was excavated below the bow and stern. With the help of the tide and the force of the tug, it is hoped that the ship can be rescued as early as the 27th. If the operation fails again, you may have to consider unloading the container to reduce the weight of the ship, but that will be very tricky. A senior person in the industry explained to this reporter that the “Changci” has a draft of 16 meters. According to the information on the cross-sectional view of the Suez Canal project, the water depth of the waterway on the side of the river where the ship ran aground is 48.9 meters, which is estimated to be at least A 50-meter hull stranded and inserted into the shoal, and considering the speed and weight of the ship when the ship ran aground, the ship is a “hard stranded”; the towing power of the tugboat will also be limited due to the narrowness of the Suez Canal; unloading the container The operation is also quite challenging. By detouring the Cape of Good Hope in the shipping industry, which is extremely dependent on global trade, it takes more than twice as long to restore the entire logistics chain to its original level for every day of delay. British furniture company Cotswold imports furniture from Malaysia, Indonesia, Vietnam and China, most of which have been shipped to the UK through the Suez Canal. The company’s operations director Alan Joseph said that the company’s £1.7 million worth of furniture is currently trapped in massive maritime traffic congestion on the Suez Canal. He said that from a cost perspective, it is expected that the cost will unexpectedly increase due to ships that have to divert and find other solutions. The company has decided not to pass on these additional costs to consumers for the time being; however, given that commodity prices are quite sensitive to shipping costs , Some retailers may have no choice but to pass on unexpectedly increased costs to consumers. The Swedish home furnishing chain company IKEA also warned of delays in the supply of goods such as appliances and furniture from Asia. Container freight giants Maersk and Hapag-Lloyd said that they are considering circumventing their affected ships around Africa to avoid congestion in the Suez Canal. Another container ship of Evergreen Shipping, the “Ever Greet”, diverted in the Indian Ocean on the 25th, abandoning the Suez Canal, which took more than 5 days to reach, and detoured the Cape of Good Hope. The ship needs about 4290 nautical miles to detour, and 9.66 days more to sail. Based on the current marine fuel price of about 530 US dollars/ton, the additional fuel consumption cost is about 740,000 US dollars. The ship’s crossing fee through the Suez Canal is about 640,000 U.S. dollars. Therefore, if the Suez Canal is closed for more than one week, it is more economical to detour. A container ship owned by South Korea’s Hyundai has also diverted to the Cape of Good Hope for Asia.

6 months ago

How to “rescue” a Canal Authority navigator said that there are sufficient equipment to rescue a stranded freighter, but the technology to re-float the freighter is quite complicated, and it may take two days to a week. Since the freighter has been damaged and it is impossible to continue sailing, it must first be towed to the nearest berthing point, which is about 30 kilometers north of the ground in the Great Bitter Lake area of ​​Egypt. From the satellite images at the scene, it can be seen that the “Changci” is almost on both sides of the canal, the bow and stern have been grounded, and the bow is wedged on the same bank. Experts estimated from the scene photos that the depth of the bow wedged to the shore was about 5 meters. In this way, the space for dragging the ship from either end is very small. Therefore, the focus of the current work is to remove the sand around the hull from underwater so that it can float again. The only good news is that the hull is stuck in the sand, which is less difficult to deal with and the damage to the hull is less than that of rocks. But the huge size of the “Longci” greatly increased the difficulty of rescue work. The containers stacked on the deck of a freighter are at least 9 stories high. In the worst case, rescuers may need to unload the containers on the ship and pump off the ship’s ballast water and fuel to reduce the weight of the ship. This is a arduous task, and it may require the use of helicopters to unload the containers one by one, depending on the amount of equipment invested. In 2012, the person in charge of the Costa Concorde hitting a rock accident (Nick Sloane) said that it may not be the best time for rescue work until the peak of the canal tide on Sunday or next Monday. At that time, the water depth is expected to increase by 46 cm, which will bring more space for rescue work. But if the best time is missed, the next high tide will have to wait 12 to 14 days later. When the container ship CLCS Indian Ocean of similar size ran aground near the port of Hamburg in Germany in 2016, it took nearly a week for 12 tugboats to successfully rescue it. Even if the “Longci” can be moved to the side of the river in two or three days, with a large backlog of ships, it will take days or even weeks for the canal to completely resume normal traffic.

6 months ago

1. Establish the Suez Canal 323 Accident Handling Leading Group, with Minister × as the group leader and the local governor as the deputy group leader; 2. The office of the 323 Accident Handling Leading Group is located 300 meters from the south bank of the incident, and the on-site office will begin immediately; 3. × Construction × Bureau Company Construction Team, × Transportation Brigade, × Tugboat Team have invited the battle; 4. × water conservancy experts and × ship engineering experts arrived at the site for guidance; 5. ×× Heavy Industries urgently deployed excavators, dredgers, cranes and other equipment Support; 6. × places formed a volunteer service team to provide material support for rescue sites and stranded ships; PS: × Xiang Technical School expressed its willingness to provide technical guidance; × Xinjiang UAV provides all-round non-dead corners and uninterrupted live broadcast support; × Bo Kuangzhi Brigade: What is your country, ask in a specific way, × will lose;

6 months ago

According to the latest information, the MV “EVER GIVEN” is still traversing the Suez Canal, and there is no actual float. According to the current situation, the Suez Canal administration has already started to take further measures to make the vessel tow shallow. The usual way for a stranded ship to escape is: load shedding, that is, to reduce the load of the ship, transfer the cargo on the ship to other ships or means of transportation in order to reduce the weight of the ship, and then use the buoyancy of the water to float the ship. Floating crane combined with tug: use the floating crane to hoist the ship to a certain height, and then use the high-horsepower tug to tow the ship away. Underwater clearance: use special engineering ships to clean the bottom of the water and assist the ship to escape. However, in actual situations, the two methods are usually used in combination, which can help a stranded ship to get off the ground as soon as possible. But the MV “EVER GIVEN” stranded in the Suez Canal has its own particularities. There are river restrictions in the canal. The ship is huge, with a total length of 400 meters and a width of about 59 meters, which can be loaded in more than 20,000 containers. At present, the ship is almost crossed on the Suez Canal, marking the canal out of the “Chu River and Han Boundary”. The author learned through shipping professional media friends that the bow and stern of the ship were both stranded on the Suez Canal. It is too difficult for such a big guy to get up and down by the tugboat. The aforementioned cargo reprinting involves more than 20,000 containers, and reprinting one by one is also a relatively large workload. In addition, it is understood that the current Suez Canal authorities have hired professional rescue companies from the Netherlands to carry out the rescue. The author envisions that the most possible way is to dredge the river, widen the river, reduce the load at the same time, and then pass the high-horsepower tugboat, and at the same time, use the power of other ships to work together to try to de-shallow the ship. The stranding of this kind of giant ship is a big problem, especially on the Suez Canal, which brings about numerous consequences and various legal disputes. It is a huge disaster for ship owners and ship operators. Now that it has been written, because the author himself is a person in the legal profession, the maritime field is also one of the fields of practice. By the way, sort out the possible legal disputes that may be caused by this stranding: the ship. Various compensation disputes caused by hull losses, disputes caused by various compensation liabilities of ship operators, such as compensation for cargo losses, compensation for canal losses, etc., payment of salvage company salvage compensation, etc.; cargo. Loss of goods, international trade disputes between buyers and sellers of goods in international trade, disputes over cargo transportation contracts, disputes over cargo insurance, etc. Of course, in terms of ships and cargo, because there are insurance companies behind it, all disputes are unavoidable from the participation of the insurer, and compensation disputes may also arise between the insurer and the insurer.

6 months ago

I put my left hand on his right rudder, and my right hand put on his left rudder, and I competed with him! Then I was knocked to the ground by him, saying that it was too late and that time, his propeller had already reached my front, I saw it, I was in the middle of my arms, so I didn’t panic, pointed my backhand, and it was in the middle of his Yongquan acupuncture point. …… ​ The ship jam in the Suez Canal is a small probability event in terms of probability. From the conspiracy theory, it is just right. Crude oil fell from a high point, a healthy fall. At this time, the big ship ran aground on the Suez Canal. Blocking a transparency will cause a new high to rise, which will be shown as another peak on the right side of the graph, which will touch more than 70, if it is indeed controlled by someone. For the rest of this year, the focus is on non-ferrous metals. China does not cooperate with the release of water and has to build its own infrastructure. It just doesn’t know how much financial support it will get at the current US cost.

6 months ago

The current rescue measures are to dig the width on both sides of the jam. The ship is almost 400 meters wide, the river is 313 meters wide, and the depth is 22.5 meters. This amount of work is a bit large for the lack of equipment. The best way is to ask for help, the infrastructure mad at any time. As for the problem of unloading, most people should know that the container of this kind of ship needs to be unloaded in a special kind of port to complete, hang, brother. The best way is to use more comprehensive rescue. Digging at the same time and dragging at both ends. I don’t know that it is immature. Turn off the valves on both sides of the seaport. If there is no valve, I will treat it as if I didn’t say it. It is not a professional to salvage the air cushion of the sunken ship, and then tow it down to try. It is not a professional, but these should work.

6 months ago

From a comprehensive analysis of news from all aspects, this matter was instructed and deliberately done. If it is, the force behind the follow-up development will come to clean up the mess, reopen the channel, and control the channel. Crushed Europe. Properly teach the Chinese people, oil and the lifeline of the economy are in my hands.

6 months ago

Because it’s not a professional, let’s talk about a ridiculously generous method. Build several large sewage ponds on both sides of the bank, and then use river water to hit the soil under the ship, so that the surrounding water is mixed, and then pump the water into the sewage pond to settle. Block the rivers on both sides of the boat. After the water has clarified, hitting the shipwreck is equivalent to digging the sand under the ship. Let him have enough water to float. Of course it’s okay to pump the river water directly, a bit like the Panama Canal

6 months ago

The Egyptian government is really inefficient and cost-effective! Not to mention the use of machines. It means using pure labor to find 10,000 adults and how many cubic meters of soil are required to dig a day, for example, five cubic meters. $200 per person. It is estimated that a large hole can be dug out of the stranded ends in two days. I really didn’t blow this. In the 1950s and 1960s, in my hometown of Fengcheng, Jiangxi, a stream was called Qingfeng Mountain Stream. It was 100 meters wide and was dug out by hand with carts and shoulders. At that time, I was still earning work points. The elderly and children were all in the battle, and every household was born, digging a river abruptly. Although this river is called a stream, it is 100 meters wide anyway. Now that science and technology are so advanced, there are many Egyptians, and there are many people who have nothing to do after eating. Wouldn’t the Egyptian government organize it a little bit? Give some money, find thousands of individuals, and you can dig it out in a day if it’s fast. I forced an excavator without a full moon to come out and do it alone. I heard that now I am looking for an excavator without a full moon to help. Isn’t it troublesome? If I were the chief engineer, I would be very simple. Put 5,000 people at the bow and 5,000 people at the stern. Ten dollars a load of soil, iron sheets and burdens, and the salary is paid now. I estimate that it will be able to double the length of the river that blocked the boat in half a day. So, sometimes I look at the efficiency of foreigners’ work and want to hammer them.

6 months ago

To be fast, we must focus on solving the problem of yaw and blocking the channel. Then towing out of the canal, other queuing ships resume navigation first and give priority to transporting dangerous chemicals. The problem of yaw and stranding is actually very common, and the principle is also very simple, that is, the displacement (buoyancy) under the hull after stranding is not enough to support the hull to be towed away from the depth of the water again. If the difference is small, it can be towed hard. It is good to leave the shallows and reenter the deep water area after some scratches on the hull surface; but if the buoyancy is insufficient, the hard tow is not allowed, otherwise the structure of the cable anchor point may not be towed. There will be ballast tanks on the hull, which can increase buoyancy by releasing water. It seems that this has been done now. The problem is that the design of this large container ship gives priority to cargo efficiency and navigation efficiency. It is impossible to consider too much in the hull design of the response to this kind of accident, so the effect is limited. Moreover, even if there is enough ballast and ballast water, the uneven release will cause the center of gravity of the currently loaded ship to shift upwards, because the ballast weight is usually at the lower part and the containers are piled high and higher. If a rollover occurs due to a shift in the center of gravity, it will be more difficult to deal with and not worth the risk. The safest way is actually to unload the cargo. Unloading a part of the current container, the gravity and buoyancy balance will automatically rise, and then it can be towed to turn on the spot, first give up part of the channel, and then autonomously navigate the cargo ship out of the canal according to the damage of the rudder. According to reports, this ship contains about 20,000 containers, and the total weight of the ship is about 200,000 tons. Then the average dry weight of each container and the average weight of the ship are 10 tons. It is estimated that 2,000 to 4,000 containers can be unloaded to float and escape from stranding. (Actually, the range from the draft, the bow and stern to the two sides of the strait, and the depth sounding on both sides of the strait can be calculated and simulated more accurate figures; there is a lack of relevant information. One). The question then becomes how to quickly unload 4000 boxes in a fast, universal, easy-to-deploy, and low-cost way (assuming that the boxes above are lighter and the counterweight has been optimized, so we won’t guess at the intermediate number 3000). Large helicopters are definitely needed, but helicopters cannot be used for hoisting and unloading. The cost is too high and the key is low efficiency. Because container unloading requires special tooling and weight, the operation from unloading the cargo on the ship to the temporary cargo yard on the shore also takes a lot of time, and the pilots and operators are also tired and unable to work continuously for a long time. Then, the most suitable way is to use a heavy helicopter to hoist a special beam on board the ship, and to use it as a crane beam on the existing container. At the same time, a cylindrical or C-shaped cross-section enclosure tower is built with steel pipes and special connectors near the shore, and then the containers on the ship are hoisted one by one. The cables are transported horizontally to the enclosure tower, and then they are continuously hoisted down vertically. The truck is transported to a larger area for temporary storage. The most important thing for this method is that it requires good engineers and sufficient general-purpose materials. If three boxes are delivered every minute, 4,000 can be delivered in one day; if one is delivered every minute, it will be completed in three days. The biggest advantage of this method is that it can be continuously constructed. The surrounding tower is similar to the combination of scaffolding and tower crane in construction engineering; the part on the ship is similar to the simplified body of the tower crane, and the flexible cable is used to connect the lifting container in the middle to continuously cycle work; do When the counterweight is actively balanced, the risk is basically controllable, and even a small amount of floating of the hull can be automatically compensated by a flexible cable. Of course, this method seems simple. In fact, it has a great test for engineering ability, engineering support ability, construction coordination and command ability, etc. Personally, I am not optimistic that Egypt’s canal management department has such ability. Basically, it can be said that the industrial capacity of a medium-sized foreign country is approximately equal to that of a province in China. I am now living in a provincial capital city. This city is not weak in industrial capacity. I think it is based on the city’s management ability and common construction and road construction. The ability that he showed, he couldn’t get there soon after doing it like this all of a sudden. Moreover, it is usually not technical issues that delay time, but various coordination processes and processes of wrangling and meeting. I hope that the buoyancy of 40,000 tons of 4,000 boxes can solve the problem is too large; I hope that the actual buoyancy required can solve the problem as long as one-tenth, and then the excavators and trucks in Egypt can rush out 10,000 in a short time. Fang’s mining volume.

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