Egypt.

Due to the obstruction of the Nile, the Southern Canal has only completed the double line on the east side of the Nile, and is being widened for a second time at this time.

After all, the width of the 120-meter river is too narrow, and when the container ship of Evergreen Shipping passed through the Suez Canal, the water surface width of the canal was only more than 300 meters, and the depth on both sides was not enough, so the grounding accident occurred.

This is also the reason why the Egyptian Canal Management Company of Homo sapiens will limit the navigation limit of the canal to 50,000 tons.

According to the plan, the main trunk of the southern canal will have a design width of 500 meters and a depth of 45 meters for a single line, and it will need to be excavated at least four more times along the canal to ensure a water width of 500 meters.

Fortunately, the New Luzon Shipbuilding Company and Ceylon Shipbuilding Company will deliver 15 giant rhino canal opening vessels in the next year, which will greatly increase the speed of canal excavation.

At this time, the city of Kom Ombo was north.

There are not many large ships in the calm surface of the Nile, mainly because the Nile River is in a dry period at this time, and the industrial and agricultural water on both sides of the river is rising year by year, resulting in the water depth of the Nile River at this time is less than 5 meters, which greatly affects its shipping value.

The Gobi Desert New Area is located on the south side of the Southern Canal, on the east side of the Nile River, and is 5.7 kilometers away from the main stream of the Nile River.

Hu Mingliang, the person in charge, and Shangtiao Beiyang, the head of the planning team, are standing on the bank of the Nile, inspecting how to let the canal pass through the Nile.

If it is a freshwater canal, it does not need to be too troublesome, and it can be connected directly.

The problem is that the southern canal is a seawater canal, once connected with the Nile, because the altitude of this section of the Nile is about 58~60 meters, and the southern canal is at the same level as the sea level, the consequence is that the water of the Nile River quickly fills into the southern canal, resulting in the direct interruption of the lower reaches of the Nile.

Hu Mingliang turned his head and asked, "Shangtiao, has the plan come out?" ”

"I discussed with the planners at the headquarters that if the overhead bridge scheme is adopted, the canal will only be able to pass ships under 100,000 tons in the future."

Hu Mingliang took the tablet of Beiyang on the previous strip, and there was a design plan for the overhead bridge on it.

The plan was to build two oversized bridges above the canal, allowing the Nile to pass over the bridges and the canal to cross the overhead bridges.

This solution is the most time-saving and labor-saving, and at the same time avoids the back-up of the Nile and the contamination of fresh water by the canal.

Other ship lock schemes and four-sided lock and dam schemes are not as good as the overhead bridge scheme.

It's just that although the overhead bridge is good, the disadvantages are also very obvious.

The altitude of the Nile River here is 58~60 meters, and the altitude of the river bottom is 50~55 meters, if the overhead bridge is built, plus the thickness of the overhead bridge, the height of the bottom of the bridge from the water surface of the canal will be compressed to about 40 meters.

With a passing height of 40 meters, a 100,000-ton class transport ship can only barely pass.

The design ceiling of the southern canal is 300,000 tons.

Hu Mingliang frowned and asked, "Is there any other way?" ”

Kamijo Beiyang thought for a moment: "There is a more troublesome plan. ”

"Tell me about it."

Beiyang called up another design plan on the slab: "Two overhead bridges in the form of seven-level locks are being built, and a drainage tunnel is being excavated at the same time to connect the upper and lower reaches of the Nile, which is separated by overhead bridges." ”

Hu Mingliang looked at the new plan, which had expanded several times in scale, and fell into the trade-off.

In this scheme, the overhead bridge that passes over the canal in the middle will be raised to a height of 100 meters above the water surface of the canal, and the length of the overhead bridge will be 1 kilometer.

The elevation of the bottom of the bridge is 100 meters, plus the thickness of the bridge structure layer of 12 meters, and the water depth of 12 meters, the dam height of the bridge body is required to be about 30 meters, and the overall altitude is 130 meters.

There is a drop of about 70 meters between this height and the water surface height of the Nile on both sides.

Therefore, three locks are designed on both sides to ensure the smooth passage of 50,000-ton transport ships on the locks.

Two other locks were designed to connect the Nile with the Southern Canal.

Two drainage tunnels that cross the base of the southern canal and connect the upper and lower reaches of the Nile, mainly to avoid blocking the flow of the Nile.

Obviously, the cost of this solution is several times higher, and the complexity has also increased to a higher level.

But the benefits are also very obvious, the southern canal can be navigated by 300,000-ton transport ships without barriers, which has a very important acceleration effect for the future development of the Sahara Desert region by Homo sapiens.

After Hu Mingliang weighed the pros and cons, he made a decision: "Just use the second plan, deduct and search now, and it will be more troublesome to upgrade and transform in the future." ”

"Oh well! Based on the second plan, I communicated with the headquarters planning and design company. ”

Hu Mingliang nodded: "This matter will be handed over to you." ”

Suddenly, Hu Mingming's assistant came over and whispered a few words in his ear, he raised his eyebrows, and then shrugged his shoulders to Shangtiao Beiyang: "Something is coming again." ”

"Haha, it's okay, you get busy first! I'm also going to have a geological exploration team to survey the surrounding geology. ”

After bidding farewell to Beiyang, Hu Mingliang drove back to the Gobi Desert New Area in an armored car, and then hurried to his office.

At this time, there are two people in the office.

An old Slavic man with a rugged face, and a middle-aged man in a space gray uniform.

"Dr. Mikoyan! Major General Du Hai! Hello, I am Hu Mingming, the head of the Gobi Desert New Area of the Egyptian Branch. ”

Dr. Mikoyan, who had previously worked in the aircraft manufacturing department of the Aoba Aviation Group, had been transferred to the Third Design Institute of the Aoba Aviation Group.

"Hello! Hu, this time we're here for your help. "Dr. Mikoyan is a bear hug.

Major General Du Hai took out a blank piece of paper and handed it to Hu Mingming.

Hu Mingliang took it, tore off the special film on the surface, and read the special pheromone code on the paper through the pheromone decoder of the biochip.

After 30 seconds, the pheromones on the white paper have melted away, turning into an ordinary white paper.

Hu Mingming, who had browsed the confidential information, replied solemnly: "I understand, I will fully cooperate with your work, and do a good job of confidentiality and cover." ”

"Then I'm bothering you." Major General Du Hai immediately saluted.

Open the virtual map of the office.

Du Hai circled an area on the virtual map: "It's here." ”

"The east side of Jajay's estate in the Harrij Oasis? No problem, but the Southern Canal will need to wait for the completion of the Nile Junction before it can be advanced to the Harrij Oasis. ”

Du Hai asked, "How long will it take?" ”

Hu Mingliang thought for a moment: "The main lock and drainage tunnel will take about 7 months, and it is expected that by the end of this year, the single line of the canal can be advanced to the Harij Oasis area." ”

Hearing this time, Du Hai quickly made a decision: "It seems that we must send a group of transport planes over and go to the Harrigh Oasis Area in advance to lay out." ”

Then he turned his head: "Doctor, you and the planning team of the space base are in Kom Ombo for the time being!" I will personally take people to the Harrij Oasis area, and as for the planning and layout, we will communicate by satellite phone when the time comes. ”

"No problem." Dr. Mikoyan also had no idea of going to the Harrij Oasis now, after all, he was almost sixty years old, and there was nothing he could do in the past to help.

After communicating for a while, the three of them left and began to work on their tasks.

This time, the layout of Egypt's space base is also one of Li Qingye's instructions.

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(End of chapter)