The rise of nanometers

Zitong County, Shiniu Town.

After two days of inspection in Chengdu, Huang Xiuyuan came here.

Not far from the Ancient Golden Bull Road in Shiniu Town, hidden in the high mountains, there is a research institute of the Sui people called the Tunnel Excavation Research Institute.

The research institute is set up on the mountainside and uses the silicate-sodium chloride material used to build super highways, combined with silicon nano-coating and iron-silicon nanowires.

Integrated buildings made of this new type of building material are very suitable as building materials in areas prone to landslides and earthquakes like Shu Province. With the addition of solar panels on the roof, fresh water and food reserves, even if it is used as a doomsday base, The equipment included is more than adequate.

Standing on the observation deck of the research institute, looking at the lush greenery in the distance, where the ancient Taurus Road is hidden, Huang Xiuyuan admired:

"The road to Shu is as difficult as climbing to the sky! There are silkworms and fish birds, how confused the founding of the country is! You are forty-eight thousand years old, and you are not connected to the Qin Dynasty. There is a bird road in Taibai in the West, which can cut across the top of Emei. The earth collapses and the mountain Destroy the strong man to death, and then the stone stacks on the ladder to heaven will be connected together."

"This Jinniu Ancient Road is the mountain that King Shu sent Wuding to open. Legend has it that Wuding was buried by a landslide in Zitong." Yang Shuli, chief researcher of the Tunnel Excavation Research Institute, said with a smile.

Huang Xiuyuan knew the legend of Wuding's founding of the mountain. In future archaeological discoveries, a relic from the pre-Qin era was discovered near Wuding Mountain in Zitong County. According to archeology, it was determined to be the convoy that Wuding escorted the five wives of the Qin Dynasty.

Various signs from the archaeological site indicate that when the convoy came to Zitong on the Jinniu Ancient Road, it encountered a landslide and the entire wedding convoy was buried near Wuding Mountain in Zitong.

Later, the Qin State borrowed the Golden Bull Ancient Road to enter Shu and destroyed the Kaiming Dynasty. With the spread of falsehoods, it gradually turned into a series of legends about the Five Dings.

Putting away this distant memory, Huang Xiuyuan and Yang Shuli walked into the institute. The integrated building made of new materials gave the entire institute a sense of science fiction.

Half a month ago, he approved a RMB 2 billion upgrade and renovation plan for Southwest Hope Primary School. First, the Hope Primary School in the mountainous area in the earthquake zone was upgraded and transformed into integrated buildings.

Officials also plan to gradually promote the use of new materials in infrastructure and high-rise buildings in the southwest to ensure overall seismic resistance, which can be improved to withstand earthquakes of magnitude 8 to 9.

The two walked into the mountain-mounted building of the institute. Inside was a huge tunnel, which was the experimental site of the Tunnel Excavation Institute.

Yang Shuli took him to the protection replacement area aside, changed his protective clothing and helmet, and came to the experimental area for tunnel excavation.

High-strength boards have been laid around where they stand, which is enough to ensure internal safety.

More than a dozen researchers, wearing protective suits and helmets, operated various equipment and worked in the rock formations in front.

"Chairman, this is the new excavation plan of the Wuding Project." Yang Shuli pointed to the equipment in front of him and said.

Huang Xiuyuan picked up the customized tablet handed over by Yang Shuli. It contained various information on the "Five Ding Project". In addition to the Department of Sui Ren, this project also involved the Academy of Engineering, the Academy of Science, and several universities.

In traditional tunnel excavation construction, either the entire tunnel is excavated and then filled (mostly used in early shallow subways), or blasting is used, and in recent years, shield machine excavation has been used more frequently.

No matter which plan is used, when encountering dense rock formations, the difficulty and cost of construction will increase exponentially. Especially for areas with complex terrain like China, during road construction in the southwest and southeast, the probability of digging tunnels is almost It's one hundred percent.

Although the shield machine is good, the excavation speed is also not fast, and the excavation cost is also quite high.

In order to advance the western development strategy more quickly and smoothly, the Department of Sui Renmin University and the Academy of Engineering took the lead in establishing this research institute.

After Huang Xiuyuan read the details on the tablet, he raised his head again and looked at the construction site not far away.

Several streams of steaming reddish water flowed down above the rock formations and flowed on the surface of the rock formations.

The researcher pressed the power switch, and the current passed through the light red liquid, causing a chemical reaction on the surface of the rock wall. The six-cone spherical oxygen in the liquid began to plunder silicon atoms in the rock formation and liberated a large amount of oxygen.

The ventilation system draws out the dense oxygen in the working area, and at the same time pumps the light red water in the ground pool back into the circulation system.

Twenty minutes after the power was turned on, the researcher pressed the off switch.

The excavator stretched out its bucket and scraped against the rock formations. Large areas of the rock formations collapsed, like severely weathered limestone.

After scraping for a while, Huang Xiuyuan visually estimated that he had dug to a depth of half a meter.

"At this depth, the decomposition liquid shouldn't be able to penetrate, right?"

Yang Shuli explained with a smile: "We use drilling assistance. Each time we drill densely packed holes with a depth of 0.6 meters, insert absorbent sponges, and pour the decomposition liquid, the decomposition liquid will follow the sponge into the interior of the rock mass, adding The cracks in the upper rock layer itself can destroy the rock layer to a depth of 0.5 to 0.7 meters after electricity is applied."

While the two were talking, the excavator had scraped off the corroded parts of the rock formation, exposing the uncorroded rock formation and some shallow holes.

The excavator excavates the earth onto the sand and gravel conveyor belt aside and transports it out of the working area.

Another machine with a dense drilling machine started working on the rock formation. The high-hardness drill bit was operated at full power. After half an hour, rows of densely packed small holes were drilled.

Then mechanically insert absorbent sponges, pour decomposition liquid, and apply electricity to decompose the rock formations.

One cycle takes about two hours.

"The efficiency is still a bit slow. One team only excavated to a depth of more than two meters." Huang Xiuyuan was obviously a little dissatisfied with this speed.

The shield machine can advance 6 to 10 meters every day in the hard rock layer. Even if the new excavation technology operates 24 hours a day, the progress will only be 6 to 7 meters, which is not enough to form an overwhelming advantage.

"Chairman, this current operation method is actually for experimental use. We will next combine it with the shield machine to conduct joint operation tests." After Yang Shuli finished speaking, he found another experimental plan on the tablet computer.

Huang Xiuyuan took it and looked at it.

The decomposition method combined with the joint operation of the shield machine can indeed effectively increase the operation speed in supercomputer simulation calculations.

But in reality, it is not that simple. The reason is that the six-cone spherical oxygen in the decomposition solution has super electrolytic properties. When electricity is applied, it will plunder the surrounding atoms and produce a large amount of high-purity oxygen.

In this way, if the decomposition method is to be combined with the shield machine, it must be ensured that the shield machine is not decomposed by the decomposition liquid. This requires very high control of the temperature and current intensity of the decomposition liquid.

The current solution is to replace some parts of the shield machine with elements that are not easily robbed by the decomposition liquid. It is best to use materials that are relatively different from the temperature and current required by silicon atoms.

As for the problem of high-purity oxygen, it is not difficult to solve.

As long as these problems are solved, it is not difficult to advance 30 meters a day by combining the decomposition method with the shield machine.

Even granite-level hard rock is no different from ordinary loess under the corrosion of decomposition method.

Huang Xiuyuan ordered: "You should work together with China Railway as soon as possible to build a shield machine and come over to test it."

"Chairman, don't worry. China Railway is more anxious than us. The TBM is already on the way."

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