Three days later, Chu Jianghe, Wang Guangyuan, Li Xiandeng, Franz, Qiao Tianhong and other members of Chu Jianghe Design Company gathered in the conference room in Shenzhen.

"Old Qiao, after mixing cement and soil, how is the recent experiment with this method of reinforcing the foundation?" Chu Jianghe said first.

Some time ago, Chu Jianghe threw out the method of mixing cement and soil to strengthen the bearing capacity of the foundation.

In the era of high-speed rail more than ten years later, cement mixing piles, CFJ piles, and pipe piles are more commonly used ways to strengthen the foundation of short-distance road foundations.

Key cement mixing pile, the manufacturing of construction machinery, the requirements are not so high, in 86 years, the domestic want to manufacture some high-end precision instruments, there is still a great difficulty.

This is also the reason why Chu Jianghe put forward this theory.

Although Chu Jianghe knew that this method was feasible, there was no experimental basis and data as a reference, and there was no way to convince old experts like Qiao Tianhong.

After all, these experts of the older generation are accustomed to speaking with facts and data, and it is impossible to listen to your empty words, not to mention the railway, which is related to tens of millions of people's families, and cannot be sloppy.

But fortunately, Qiao Tianhong and others were very interested in Chu Jianghe's idea, and with Chu Jianghe's funding, after more than a month of experiments, there were finally some results today.

"Jianghe, you proposed to use cement and soil to mix the way to strengthen the foundation, it is indeed feasible, Zhang Lao and I through experiments and data testing, found that the use of this method, does have the effect of strengthening the foundation, but to withstand the speed of the train 160km/h, there are still problems. Qiao Tianhong said truthfully.

"Elder Qiao, what did you do when you experimented?"

"We experimented with the cement you provided, stirred into a slurry, and then through the excavator, intervals to stir, through a period of observation, found that the foundation in this area, indeed strengthened, but the effect is not good, as for the river you mentioned before to make a pile foundation, it has not been implemented, because there is no such machinery in the country for the time being. Qiao Tianhong said truthfully.

Qiao Tianhong's method is very simple, it is nothing more than to use an excavator to mix cement slurry and soil, and then observe it after a period of time to determine the experimental situation.

After the cement is solidified, of course, it has a reinforcing effect on the foundation, but the area and depth of the reinforcing effect are limited.

Nowadays, because of the machinery of cement mixing piles, under the existing conditions, Qiao Tianhong really cannot make cement mixing piles.

"Old Qiao, does that mean that the effect is not very good?"

"It's really not very good, you know, the reason why the bridge settles less is because the pile foundation of the lowest layer acts on the bearing layer, or some rocks, these bearing layers themselves are very hard, which ultimately makes it difficult for the bridge to sink, ensuring the smoothness of the rails, and finally ensuring the speed of the train. Qiao Tianhong said.

In order to ensure that the bridge sinking meets the requirements, when designing the pile foundation, the depth of the pile foundation is generally applied to the bearing layer to ensure that the foundation has sufficient supporting force.

Chu Jianghe is also clear about this.

"If I can make a machine that cuts the soil and ensures that the cement slurry and the soil are evenly mixed, and finally acts on the bearing layer, do you think this method will work?"

"Acting on the holding layer?" Zhang Lao, who didn't speak on the side, couldn't help but speak when he heard Chu Jianghe's words.

"Yes, for example, on the roadbed foundation, pouring cement piles with a diameter of 50 centimeters and a distance of one meter, and each pile foundation acts on the bearing layer, can this method ensure the quality of foundation reinforcement?" Chu Jianghe asked rhetorically.

Hearing Chu Jianghe say this, even Qiao Tianhong was moved, to be honest, with Qiao Tianhong's design experience, he vaguely felt that Chu Jianghe's method was feasible.

The pile foundation of the bridge adopts the friction between the pile and the soil, plus the bearing capacity of the foundation, to ensure that the bridge sinks small.

The large-scale construction cement pile proposed by Chu Jianghe is also equivalent to the supporting force of friction and bearing layer, and the group of piles bears the impact force brought by the operation of the train, and the impact force of the real distribution to the single pile is very small, so that it really plays a role in reinforcing the foundation.

"Jiang He, we can't guarantee this, but can we really make this kind of machinery?" Qiao Tianhong said with skepticism.

If this kind of machinery is really manufactured and the experiment is successful, in Qiao Tianhong's view, it is undoubtedly a major achievement to speed up the railway!

"How do you know if you don't try? Chu Jianghe smiled slightly, then took out a stack of things from the briefcase he was carrying and put them on the table.

"Jiang He, what is this?" asked Li Xianden curiously.

"It's a drawing!" After Zhang Lao took it, he answered, then frowned, and said: "This drawing seems to be a kind of machinery, but I have never seen this kind of machinery." ”

Hearing Zhang Lao say this, everyone showed interest, and there were thousands.

"Jiang He, this can't be the kind of machine you said, even the drawings have been drawn?" Qiao Tianhong said in disbelief.

"Old Qiao, don't worry. "The Chu River channel.

In fact, this drawing is a simple diagram of cement mixing pile construction machinery, in the previous life, Chu Jianghe also saw a lot of cement mixing pile machinery, and he had an understanding of its design to draw these drawings.

"Franz, look, if the machinery factory in Chutan City is built, can you make this machinery?" Chu Jianghe looked at Franz and said in German.

There is no way to manufacture it in China, Chu Jianghe has to use foreign technology, 86 years, Germany's machinery manufacturing industry, is also famous in the world, if Franz's company can not manufacture, then want to manufacture this machinery, I am afraid it is enough.

Everyone didn't know what Chu Jianghe was talking to, but they all knew that he was talking to Franz, because in addition to Chu Jianghe, he was a German.

Franz took the drawings and looked at them, his brows furrowed again, although he was very interested in machinery, but after all, he was not a professional, and Chu Jianghe's painting was too sloppy, Franz really couldn't understand how this machine worked.

"Let me explain it to you......" Chu Jianghe said, and began to explain the composition and principle of this machine to Franz.

Chu Jianghe is completely gambling this time, if the machinery for the construction of cement mixing piles cannot be manufactured, there is no chance for his own design company to win the bid for the railway, because he has no hole cards in his hands to confront the third design institute!

But once this kind of machinery is manufactured, then Chu Jianghe is ninety percent sure that he will beat the Third Design Institute and win the first 160km/h railway design in China.

Of course, this kind of machinery is not to be manufactured in the short term, because the preliminary survey of this railway has not yet been carried out, and it will take at least two years or even longer to the actual construction.

Chu Jianghe had enough time to research and manufacture this kind of machinery.

With Chu Jianghe's explanation, Franz's originally frowning brows slowly unfolded, and finally showed a hint of surprise, looking at Chu Jianghe's eyes, showing admiration.

Although they couldn't understand the conversation between Chu Jianghe and Franz, they could see his admiration for Chu Jianghe from Franz's expression.

In other words, to make this kind of machinery, maybe there is really a play!

"Chu, don't worry, no matter what, I will also find a way to make this kind of machine!" After a long time, Franz spoke not very fluent Chinese to the Chu River.

"That's good!" Affirmation from Franz, Chu Jianghe smiled slightly, looked at Wang Guangyuan, and said, "Guangyuan, when all the drawings are formed, you can help me apply for a patent!"

For the first cement mixing pile machinery in China, Chu Jianghe will definitely not let go of the opportunity to apply for a patent.

"Don't worry, I'll take care of it. Wang Guangyuan said.

Subsequently, Chu Jianghe introduced the design and principle of this machine to Qiao Tianhong and others, and after listening to Chu Jianghe's explanation, even Qiao Tianhong was a little shocked.

"Jianghe, if this machine is really manufactured, the road base foundation should be reinforced, it should not be a problem. After Chu Jianghe's introduction, Qiao Tianhong said with affirmation in his tone and confidence.

When Qiao Tianhong said this, Chu Jianghe was still a little surprised, as the former vice president of the Third Design Institute, it is generally impossible to say such a positive conclusion without data to support it.

Unless, the other party decides, this method is really feasible.