I! Pretending to Be Reborn, Director of Doomsday Hoax

Faults like to extend in chasing fault and broken zones. The upper part can lead to the lake bottom of the Qingzang Plateau, and the lower part can bear underground water veins, where a large amount of groundwater gathers.

It would be fine if there were no tunnels, as the groundwater would be safely hidden in the faults.

However, once the fault is broken, all the groundwater that has been accumulated for thousands of years will pour out backwards, and even form a rapid waterfall, which can kill people in the blink of an eye!

The extremely cold line in Chuanzang, there are twelve faults in the Hengduan Mountains alone, and if you are not careful, the groundwater will leak out.

Therefore, engineers are cautious, for fear that something will go wrong.

Xu Qiu looked at the construction equipment in the distance and remained silent.

In fact, Longguo has mobilized a large number of high-tech equipment and sent them to the Sichuan-Zang Extreme Cold Line to support the construction, and even used a lot of black technology.

However, the construction progress here is still stagnant and difficult to advance.

Looking around, there are all kinds of machinery and equipment everywhere.

Mobile bridge erecting machines, tamping vehicles and track dynamic stabilization vehicles are all placed in the construction area.

At the place where a river is crossed, the mobile bridge erecting machine is operating slowly.

That is the equipment manufactured by the Longtie [-]th Bureau Group. The operation mode of this equipment is different from other bridge erecting machines mainly because of the "flowing

Lifting the beam, transporting the beam, passing through the hole, dropping the beam, and returning empty, five steps in one cycle,

Thus, the self-lifting, transporting and erecting of beams will be "three in one",

One piece of equipment completes the workload of the previous three sets, and also solves the complicated process of dismantling the bridge erecting machine after passing through the tunnel because it was too large in the past.

There are also tamping cars and track powered stabilizers.

This thing was designed by Longtie Large-scale Road Maintenance Machinery Group Co., Ltd. in Yunnan Province. It integrates machine, electricity, hydraulic and gas.

Using a large number of advanced technologies such as electro-hydraulic servo control, automatic detection, microcomputer control, and laser alignment, the operating efficiency is between [-] km and [-] km per hour.This thing can be said to be specially designed for Youyue Railway.

In the construction of newly built railways and maintenance of existing lines, it carries out the operation of clearing, leveling, and tamping the existing tracks, which improves the compactness of the track, increases the stability of the track, and improves the accuracy of the line. The design accuracy and durability of the track have been raised to a very high level!

Qu Huamei frowned, looked at the Luding and Zhedo mountain roads in the distance, and said: "This line is very steep and steep. If it is going to be built, it will be like a roller coaster." We have tried several times. kind of thinking. "

"For example, get through a long tunnel."

"However, according to the survey of geologists, there are several faults here, and they are [-]-year-old faults. The amount of groundwater accumulated inside is amazing!"

"If the fault is accidentally broken during the process of digging the tunnel, people and machinery will suffer serious losses!"

"Moreover, with that huge groundwater accumulation, it may take several months before all the groundwater inside can be discharged!"

"This is absolutely not advisable for the laying of extremely cold lines where every second counts!"

Moreover, in the section of Luding and Zhedo Mountains, in order to get through the ultra-long and ultra-deep tunnel, it is necessary to resist the huge stress from above.

Most of the mountains here are above 2000 meters, and even the highest mountain is nearly 4000 meters. The stress generated by the tall mountains is almost impossible to complete.

Therefore, if you want to pass the Luding and Zhedo mountain sections, you have to climb up the mountain like a roller coaster!

Xu Qiu said in a low voice: "This section of the road is currently facing several difficulties."

"Number one, is the high altitude."

"In the foothills, the highest point is 4000 meters. At this height, more than 50.00% of people will suffer from altitude sickness.

Thin air can cause headaches, insomnia, and breathing difficulties. In this environment, eating, sleeping, and drinking water are all difficult, let alone working in the open air. "

"The second is the oxygen supply and ventilation in the tunnel."

"When Luding went up to Zhedo Mountain, instead of climbing directly according to the mountain, tunnels were interspersed in it, and it was possible to pass through the tunnel after evaluating the mountain conditions."

"The third is the problem of high ground temperature."

"The temperature change in the mountain is even more terrifying than that in the underground city. For every 1000 meters in the mountain, the temperature will rise by about 25 degrees."

"If you run into geothermal energy, the temperature in the tunnel will be even higher, and there are still a lot of hot springs."

"The scorching heat inside the cave is unbearable, but the cold wind of the plateau is blowing outside the cave. In this construction environment, the workers will suffer great torture."

"The fourth is high ground stress."

"Under high burial depths, rockbursts will occur in hard surrounding rocks, while soft rocks are prone to large deformations!"

Rockburst is complete and fresh hard surrounding rock, which explodes violently under high stress, to a great extent, like a slingshot, which can throw huge rocks several meters or even tens of meters away! The combined dilemma of four factors makes The laying of the Sichuan-Zang extremely cold line is far more than any railway.

Qu Huamei and the others remained silent.

But none of them intend to give up.

Back then, they opened up the Sichuan-Zangzhou Railway, but now, they just built a larger extreme cold line along this route, that’s all.

At the end of the year, when it was necessary to move the material blocks by hand, they did it. Now that sophisticated and high-tech technology is everywhere, is it not possible? !At this time, Xu Qiu was also thinking about the countermeasures for passing the section of Luding and Zhedo Mountains.

The biggest dilemma now is the altitude of more than 2000 meters in [-] kilometers. This level of steepness is tantamount to letting a nuclear-powered dragon ride a roller coaster.

The size of the nuclear-powered dragon has reached an astonishing level. The length of a carriage is a full 120 meters!

It is conservatively estimated that there are about [-] carriages and a [-]-meter-long dragon!

This means that the 2000 meters must be climbed very straightly. Once there is a turning point in the middle, then this [-]-meter long dragon may break!

The steepness is too high, even if the nuclear power dragon is driven by nuclear energy, it will not be able to support such a slope if it wants to climb.

So.…

Whether the steepness can be reduced.

Xu Qiu's eyes were bright, and he looked up at the towering mountains.

What if... like a snake, winding its way up this mountain?

Xu Qiu had a flash of inspiration, looked at Qu Huamei, pointed to Luding Mountain and said, "Supposing that the straight and extremely cold route is set up as a winding railway, like a coiled dragon, it climbs around these two mountains. "

"In it, is it feasible to bypass faults and groundwater and open up multiple tunnels?"

Qu Huamei was stunned for a moment, then repeated: "Pan...Panlong?!"

At this moment, the surrounding railway designers and engineers were dumbfounded.

Like a coiled dragon, hovering between two mountains, passing straight through?

Xu Qiu nodded and said: "When going uphill, use the method of laying curves.

In places where the downhill drop is too large, bridges are built, and the two locations that are blocked in non-fault areas are directly connected by tunnels! "

"Panlong Line, Viaduct, and Tunnel, all three in parallel, over Luding and Mount Zhedo!"

Qu Huamei and the others suddenly came to their senses as if they were enlightened.

Qu Huamei said: "Our railway construction team has the first double-hole continuous segmental assembly bridge building machine in Longguo."

"Compared with ordinary single-hole bridge-building machines, this bridge-building machine can meet the segmental assembly requirements of 64-meter-span, 40-meter-span and any combination of double-line full-hole box girders.

The structure is economical and reasonable, the center of gravity is low, and the stability is high. The bridge construction work of the two-hole box girder can be completed at the same time after one hole is in place, saving nearly half of the construction period.

It has obvious technical advantages for speeding up bridge construction, reducing bridge construction costs and high-altitude construction risks at sea! "

The bridge building machine can make the construction of the bridge without any obstacles. As long as the construction period is sufficient, the construction can definitely be completed, and a huge bridge can be built between Luding and Mount Zhedo!

The person in charge of the Sichuan-Zangzhou Railway and Tunnel Engineering said: "We also have a multi-functional trolley for the tunnel!"

"This kind of equipment is multi-functional and multi-purpose for high-altitude operations such as tunnel arch installation, auxiliary bolt and anchor net installation, auxiliary powder charging, auxiliary grouting, auxiliary manual prying, and auxiliary ventilation pipe operations!"

Everyone is moved,

This kind of machinery once attracted the world's attention to Longguo. The appearance of the tunnel multi-functional operation trolley marks a major breakthrough in Longguo's high-end tunnel equipment, and also means that Longguo has already taken the lead in the laying of tunnel tracks in the world.

Xu Qiu asked, "Can the job safety be guaranteed?"

In Luding and Zhedoshan road sections, ventilation is a problem, high fever is also a problem, and there are oxygen supply, etc., there are many dangers!

The person in charge of the tunnel project nodded respectfully and said, "Director Xu, we have a complete set of tunnel pipe jacking rescue equipment and a tunnel shaft fan!"

As he spoke, he pointed into the distance.

Over there, there is a large-scale machine with a pointed cone pipe jacking shoe designed to imitate the streamline of bullets, which is the complete set of tunnel pipe jacking rescue equipment.

The person in charge of the tunnel project said: "This kind of machine is designed with a step-by-step concept, integrating jacking, guiding, and backrest. It has the characteristics of compact structure, reliable working performance, and convenient installation and transportation."

"The articulated backrest turns the tension and bending of the column into simple tension, which is simple to implement and reliable in work performance; the rotary jacking allows the jacking machine to jack horizontally and obliquely, meeting the requirements for pipe jacking exposed in the tunnel. The requirements above the excavation steps, and the rescue capability are world-leading! ”

On the other side is the tunnel axial flow fan.

This thing can effectively discharge harmful gases and dust generated by tunnel construction, internal combustion transportation machinery and giant machinery operations.

Everyone is excited, these advanced equipment are a huge boost to ensure that no country can match the infrastructure of the Dragon Kingdom!

After more than ten minutes of discussion, Qu Huamei and the others confirmed that Xu Qiuti's construction method was the most reasonable, their eyes lit up immediately, and they looked at Xu Qiu excitedly.

"Director Xu...the plan you mentioned may really work!"

"There are many faults in this area, but it should be safe to tunnel through high mountains."

"Where the drop is too large, bridges are used to minimize the slope!!"

The group of railway designers turned red at this moment, looking at Xu Qiu excitedly.

This is a completely different construction method from the previous Sichuan-Zangzhou Railway!

However, it is very in line with the geographical characteristics of Luding and Zhedo Mountains!

They can't wait to take the workers to start the construction. They want to see what a shocking sight it will be when this extremely cold line is laid and the nuclear-powered dragon is driving in the mountains! !Xu Qiu's face became very calm, and he asked: "How long will this road section take?"

Qu Huamei and the others looked at each other a few times, and they were all guessing.

After a long time, Qu Huamei said with a sullen face: "Director Xu, the construction period may be very long. According to the difficulty of construction, it may take us six months to connect Luding and Zhedoshan..."

This is still under the premise of overloading!

Xu Qiu nodded.

This was within his expectation.

The extremely cold line laying in the Hengduan Mountains is one of the most difficult areas in the country.

The Luding and Zhedo Mountain road sections are just the most difficult ones. In addition, there are a large number of ultra-high construction difficulty road sections nearby, which require a large number of workers and machinery.

It is impossible to gather everyone here.

There are six surging rivers across seven mountain ranges.

The Nu River, the Lancang River, the Jinsha River, the Yabi River, the Dadu River, and the Min River are six major rivers, all of which are famous all over the world.