With such an important paper, Li Fusheng felt pressure!
Although he has published one before, the importance of that paper is not worth mentioning compared with this paper on the production technology of PHC pipe piles with the longest and largest diameter in China, which is to be completed with Manager Lu, and you must know that this paper is ready to be published in domestic core journals and magazines.
While Li Fusheng was preparing his thesis, the first batch of super-large diameter PHC pipe piles had been transported to the river surface of Changxing Island Building Materials Wharf.
The first thing to do is to test the pile, this time it is necessary to use a piling ship to drive down the super-long and super-large diameter pipe piles, so both the construction unit China Shipping Third Harbor Bureau and the design unit China Shipbuilding Ninth Institute attach great importance to it.
So this time, the China Shipping Third Harbor Bureau also transferred the best piling ship.
This diesel piling ship is 69 meters long, 25 meters wide, 5 meters deep, and the height of the pile frame is also 88 meters.
Of course, its lifting capacity is also very strong, it can lift pipe piles weighing up to 100 tons, and the maximum pile hammer can reach D160, and the maximum impact energy reaches 53,100 kilojoules.
The working principle of the diesel piling ship is to use the instantaneous impact force when the pile hammer falls freely to hit the pile head to generate impact energy, so that the pile body sinks into the soil, and the pile body continues to sink after repeated hammering.
When the sum of the pressure exerted on the pile head and the weight of the pile body is greater than the sum of the resistance, the pile can continue to penetrate until the design elevation is completed.
Shen Huan also came this time, as well as Luo Fei, Duan Yongfu, as well as Zhang Xinghua, vice president of the Ninth Institute of China Shipbuilding, vice president of the Design Institute of China Shipping Third Harbor Bureau and others, they all came to the pile test site, this time the test pile is very important, if there is a problem, it will be troublesome, you must know that the construction period of this building materials wharf is only three months.
Now that the piling vessel has anchored, the first batch of extra-large diameter PHC pipe piles is ready.
This time, the GPS pile positioning system was used to ensure the accuracy of the pile position.
Shen Huan smiled and said, "It seems that our China Shipping Third Harbor Bureau has sent the strongest lineup!"
This piling ship should be the most advanced and most automated in China, right?
” Ruan Wenbo nodded: "Yes, this piling ship has a high degree of automation, it uses three fixed GPS rovers to control the position, direction and attitude of the hull, and at the same time cooperates with two rangefinders fixed on the ship to determine the actual position of the pile on the design elevation, and then it can be displayed on the computer."
Not only that, but it is also equipped with a hammer counter to test the number of hammer strokes on the pile and automatically calculate the penetration.
After the pile sinking is completed, the relevant records can be printed. ” Zhang Xinghua smiled and said: "Okay, whether we can succeed today depends on our Third Harbor Bureau!"
” Ruan Wenbo said with a smile: "Don't worry, we have used finite element software to analyze the process of pile sinking, so as to determine the parameters of pile sinking. ” An extra-long PHC pipe pile was hoisted and then fixed on the pile driver, as the pile hammer continued to rise and fall, everyone present actually had some worries in their hearts, afraid of what problems would occur.
So, everybody is glued to the computer monitor.
Fortunately, everything went smoothly in the process, and there were no accidents, and with the completion of the final hammer, the first pile finally sank to the design elevation and successfully closed the hammer.
The computer began to automatically print the relevant data of the pile sinking, and Duan Yongfu also breathed a sigh of relief and said: "Fortunately, the last meter has been hammered 268 times, with an average hammer penetration of about four millimeters, no problem!"
” Finally, the results of the test were carried out using the piling analysis ceremony, and this first pile reached the standard of a class 1 pile!
The pile body is complete, and all values meet the design requirements.
The first super-large diameter pipe pile test was successful!
The second and third test piles were as successful as the first without exception!
Now all the people on the scene are really relieved!
Next, the preparatory work of the concrete company for the CSSC Jiangnan Changxing Shipbuilding Base Project has also begun to enter the actual action stage.
According to the current progress and completion date of the building materials terminal, it was determined that in January 2004, the main person in charge of the new company will go to the island to carry out relevant work.
One day in October, Li Fusheng and Lu Haichuan had just completed the paper on the production technology of super-long diameter PHC pipe piles, and Duan Yongfu called him to the chief engineer's office.
Li Fusheng walked into the chief engineer's office nervously, Duan Yongfu smiled and said: "Xiao Li, I have read the paper, it is very good, I have already handed the paper to the "Concrete" magazine, I believe that it will be published soon."
I came to you today to talk to you.
Do you want to go to Changxing Island?
It's a difficult opportunity. ” Li Fusheng didn't expect this day to come so quickly, although he had thought a lot about it before, and Lin Yi also supported him to go, but when it came time to make a choice, he was still a little hesitant.
Seeing Li Fusheng's hesitation, Duan Yongfu smiled: "It's okay, if you don't want to go, you may understand, after all, working in a concrete batching plant on the island is no different from going to the desert Gobi, the conditions are very difficult, how many young people will endure that hardship?"
” Li Fusheng hurriedly said: "Ah, Chief Engineer Duan, I didn't mean that, in fact, there is nothing to endure hardship, I just, I just have other worries."
But such a great opportunity, I don't want to miss it, alas!
” Duan Yongfu smiled slightly and said, "Xiao Li, are you afraid that your girlfriend will run away?"
Of course, this is at least three years, or even five years, and if conditions allow, you can consider taking your girlfriend over. ” Li Fusheng smiled bitterly: "That's how difficult it is to do!"
My girlfriend is a teacher, so it's impossible to come out and work.
Alas, that's exactly what worries me the most!
” Although Duan Yongfu wanted to take Li Fusheng very much, looking at his appearance, he also knew that he was very conflicted in his heart, so Duan Yongfu smiled and said, "It's okay, there are still a few months, you can think about it slowly."
If you really don't go, I can't force you. ” Li Fusheng smiled bitterly: "Okay, I'll think about it again." ” Duan Yongfu is also very helpless, looking at the interns of Linhai Concrete Company, they can't bear the hardships and change careers, and in the end, there are not many left, the concrete industry is too small to attract young people, especially to Changxing Island, I am afraid that it will be difficult to recruit available talents at that time.
However, for such a national key project, millions of square meters of concrete, if there are no reliable technicians, if there is any quality problem, Duan Yongfu, an expert, may have a reputation ruined in his life, so now Duan Yongfu is also looking for talents everywhere.
It would be great if you could bring two from Linhai Concrete Company.