In the southern part of the Indochina Peninsula, the Kara Canal at the junction of Central South Province and Malay Province has not only become the focus of the whole of China, but also the most densely populated place in Central South Province at present, with a total area of less than 2 kilometers wide and more than 130 kilometers long, with a total area of only 260 square kilometers, but at least 700,000 people, more than 70,000 large and small machines, and an average of more than 2,500 people per square kilometer. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ

Don't look at the 2,500 people are not much, in an area of one square kilometer is quite a lot, before the construction of the Kra Canal, in this area of 260 square kilometers, how many people, the average is not even one, even if it is placed in the attached Indochina Peninsula, it is also a relatively barren place, far away from the densely populated center, only two or three very deserted fishing villages, the total number of people does not exceed 200 people.

Now, as a central key project, the Kra Canal is concentrated with hundreds of thousands of people, as for the former fishing villages, of course, they moved out, or entered the city to become workers, or still worked as fishermen, but no longer on the dilapidated windsurfing boards, but on modern fishing boats, after China reduced inshore fishing, except for a few fishing seasons, the rest of the time are distant-water fishing boats in the activity, Hokkaido, the Pacific Islands, and the Bering Strait, and now near Alaska.

In short, the world's few Pacific fishing grounds, is occupied by most of the half, and even in the Bering Strait area in the whaling ships are also active, but China is not like the future of Japan, coveting the benefits of whaling, although the whales are huge, but each super whale is grown up for decades, excessive immortality, easy to cause a large-scale reduction of the population, China's fishing, is to carry out part of the fishing in the protection, without reducing the total size, planned, and, in the marine discipline, Although the main body is the cultivation of offshore continental shelves, whales, as the world's largest fish, are also in the scope of research.

At this time, the Kra Canal area was not as lively as it was at the beginning, and when the Kra Canal was first excavated, new technology explosives were used to blast it to speed up the excavation. Directional blasting of explosives, can be relatively quick to destroy the soil and the demonstration of the structure, for the local soil and rock situation has a very deep understanding of the premise of the premise, with explosives to blow up at least 350 million square rocks, these if purely use manual excavation, will be a difficult task, occupy the entire Kra Canal excavation project 30% of the earthwork, but from the perspective of engineering quantity, at least more than 60% of the overall amount of excavation engineering, this part is also the most difficult project of most of the canal, It is also the most difficult problem to customer service.

No matter how much soil, no matter how large the amount of earthwork, as long as there are enough people, even if a person shovels the soil, it is enough to accumulate to a considerable extent, the reason why the canal takes a huge time, the bigger reason is that the rock after the soil layer is excavated, the soil as the earth's nutrient layer, is also the key to the growth of many plants, even in later generations, the world's understanding of the whole earth, is also a thin layer on the surface, the deepest mine in the world, but excavated to more than 10,000 meters, this is only about 10 kilometers, the whole earth, It has a diameter of more than 12,000 kilometers and a radius of up to 6,000 kilometers.

Compared with the exploration area, the soil is a very thin layer, the average soil depth of the entire earth is only 5 meters, but the official 5 meters of soil has nourished billions of people on the entire earth, and it is still nurturing.

Because it is a cross-sea canal, the passage is a 10,000-ton merchant ship, the draft is quite deep, to meet the 10,000-ton freighter, there must be at least about 10 meters of draft, but with the increase of the load of the freighter, the increase in the draft is not as geometrically as the improvement, 50,000 tons is about 11 meters, 100,000 tons is not more than 14 meters, which is also the depth of the current mainstream canal, most of which are in this range.

It is precisely because of the small number of soil layers, from the surface of a few meters, or even more than ten meters, that is, the rock layer, this part is the most difficult, just like the Panama Canal, they don't know that the deeper they dig, the more ships can pass, the reason why they can't go on like this is because the difficulty is too great, far more than the soil layer above.

The whole earth, the average area of the soil is five meters, Carat is much higher than the average soil, the depth of the soil is more than 10 meters, this is a huge advantage, may not need to dig rocks, you can ensure the passage of 10,000-ton freighters, this plan was once a direction of the canal proposal, under the premise of Yang Yuanzhao's pursuit of speed, with about 11 meters, to ensure the passage of 50,000 tons of freighters under the premise, the canal may only take 4 to 5 months, can be through.

Such a proposal has caused a series of recognitions, fast speed, low investment, and a lot of economic efficiency, but this plan was immediately vetoed by Yang Yuanzhao, a target is only 10,000 tons, and even some heavy battleships and aircraft carriers can't pass, Fantasy class as a perfect class battleship, because of the high sea environment such as going to the North Sea to fight, some designs to resist wind and waves are adopted, and the draft is a little higher than that of ordinary battleships, with an average draft of about 11 meters, The maximum draft at full load reaches 14 meters.

That is to say, after the canal is excavated, it is impossible to pass the fantasy class, and there are more than 50,000 tons of aircraft carriers, which Yang Yuanzhao can not accept in any case, and finally after careful consideration, this canal, the future is to pass 100,000 tons of giant ships, the depth of the excavation requirements are very high, the current phase of the project, The depth is set at about 15.5 meters, which has exceeded the current 10.5 meters of the Panama Canal and the current 13 meters of the Suez Canal, and basically, it meets the current requirements of the requirements to ensure the draft of 100,000-ton merchant ships and all Chinese warships.

In most areas of the Kra Canal, below 7 meters, is the rock formation, the shallowest place is 5 meters below, at least 10 meters of rock formation, this is not like oil exploration, a point of excavation, so 1000 meters is no problem, this is a canal, to dig is to dig is completely excavated.

In the first phase of the project, the width of 350 meters, every increase of 1 meter, it represents an increase in the overall earthwork volume of nearly 50 million cubic meters, which is a hard rock, even if it is qualitatively blasted with explosives, it is necessary to take into account the relationship of geological stability, in fact, after going deep to 13 meters, horizontally, use a stone crusher and small explosives to blast, when approaching the fixed depth of 3 meters, it is impossible to use explosives, because the power of explosives is too great, it is easy to destroy the structure of the bottom, when the amount of water is injected, It's just that the pressure of the upper layer of water will give the bottom of the canal a huge test, China is made of a century-old canal, not a tofu slag project, it must be built slowly, to ensure the quality, so down, after 10 meters, the speed of excavation has dropped significantly.

350 meters, the depth is about 15.5 meters, to the degree of trapezoidal, counting some different shades and different altitudes of the earthwork, the total number of earthwork is almost more than 1.3 billion cubic meters, more than half of which is still pure rock layer, this is a huge, concentrated a large number of rock earthwork of the huge project, in terms of engineering volume, can not be said to be the world's first, but also among the best.

Before this canal, no canal could be completed in a short time, the Suez Canal, the Panama Canal, and even the Kiel Canal were all built in 10 years, that is, the Kiel Canal expansion project with Chinese participation was completed quickly, under the premise of concentrating a large number of Chinese. History will change here on the Kra Canal, and China will lay the foundation for canals as one of the strongest aspects of engineering in the world in the future.

In the end, the length of the Kra Canal was set at about 130 kilometers, and the length of his canal was not the longest, not as long as the Suez Canal, which was close to 170 kilometers, but longer than the Panama Canal, which was more than 80 kilometers, and the Kiel Canal, which was more than 90 kilometers.

The narrowest place of the Kra Isthmus is only about 50 kilometers, the reason why the choice is not the narrowest place, choose the most suitable degree for construction, 130 kilometers, so that the length of the canal is greatly lengthened, but the depth that can withstand and the difficulty of construction is reduced, in the designer's plan, choose the narrowest place, It is impossible to reach a depth of 15.5 meters, because there are some hills and peaks in the narrowest place, and for this era, the stone mountain of 70 meters is already an object that cannot be constructed, but this mountain is horizontal in the narrowest place, which directly doubles the construction capacity of this canal.

Choosing the narrowest place is not the right choice, the construction time is also greatly extended, the difficulty is also increasing, and the most important thing is that the longer distance does not represent the weakening of the construction speed, the extension of the completion period, the longer distance is also suitable for sectional construction, in the future, the second phase of the project will be as long as 150 kilometers, it seems that the length is more than 20 kilometers more than here, and the depth of excavation will reach 22 meters, this depth, in at least 100 years, is enough for merchant ships below 300,000 tons to pass, in use, It is enough to use the second phase of the project flexibly, and the third phase of the project may not be excavated for decades.

In terms of design, the third phase of the project is basically a fantasy in the designer's view, at a depth of 30 meters, what kind of ship does it take on this earth to have such a draft, 500,000 tons, 1 million tons, when the technology develops to the depth of 50 meters in the Kra Canal, do you still need a ship to transport? In the eyes of most people, the third phase of the project is a very far-sighted thing, at least in 20 years, there is no possibility of investment, a short time through the first phase of the project, 2 years to complete the second phase of the project, it is enough to make the Kra Canal enough, he will become busier than the Kiel Canal, more profitable canal, there is no one. (To be continued.) )