After walking a long way inside, I saw mine cars, engineering vehicles, and trucks coming out of it, but I didn't find anything wrong.
Peng Qing said: "Did you find anything wrong?"
Pu Lei said: "There are no others. I just feel that these vehicles are relatively new and there is nothing inside."
He greeted a construction truck driver and said, "You are running around here without loading anything?"
"The mine was built inside, and nothing was hauled out here."
Pu Lei said: "If we go further, I don't know if you can go anywhere, so let's go back first."
Peng Qing said: "Okay, it's quite strange. Let's go back first."
They returned to the surface and asked Tao Decai, "Are there any problems in other mines?"
Tao Decai said: "It's still the same problem, that is, the temperature of the equipment in the coal mine is rising, and then there is leakage under the pillar mine. Have you encountered any problems there?"
Pu Lei said: "We have not encountered any other problems at the iron mine. There are just some empty construction trucks running around, and we don't know what they are busy with."
Tao Decai said: "It may be that the goods have been transported, such as soil, sand and gravel."
Pu Lei said: "That's possible. How are the mineral deposits over there? Will it delay you in building hardware?"
Tao Decai said: "There is no other way. Now we can only prepare to mobilize some raw materials from other places. We will seize the time to manufacture parts for equipment construction."
The building components are produced and processed in the workshop. The main types of components include: exterior wall panels, interior wall panels, laminated panels, balconies, air conditioning panels, stairs, prefabricated beams, prefabricated columns, etc. A large number of on-site assembly operations are greatly reduced compared with the original cast-in-place operations. The design is standardized, and the more standard the components are, the higher the production efficiency will be, and the corresponding component costs will decrease.
Tao Decai said to Duan Zhu: "We need to go to the prefabricated building factory. Some building parts require you to go to the site to coordinate with their workers."
Duan Zhu said: "Okay, where should we go?"
Tao Decai said: "It's near Shengshi City."
Tao Decai drove Duan Zhu and the others to the prefabricated building factory. I’ve only heard about prefabricated buildings, but I haven’t been to a prefabricated building factory yet.
Some distance northwest of Shengshi City, we saw several large factories. After entering the park, they also looked at the assembly factory production lines.
The assembly line production method is suitable for the production of simple components, such as: truss reinforced composite panels, double-sided composite wall panels, flat wall panels, etc. Single types of uncomplicated components can be assembled in an assembly line manner to achieve a high level of automation.
The fixed formwork method can produce various components such as columns, beams, floor slabs, wall panels, stairs, bay windows, balcony panels, corner components, etc. It has a wide range of applications, is flexible and convenient, has strong adaptability, and has low start-up capital. The components produced on the fixed mold table are poured in a lying position, while the production components of the standing mold are poured in an upright position. Prefabricated stairs are generally produced using the molding method. The factory here also uses the molding method to produce wall panels, columns, etc. without decorative surfaces, door or window openings.
Tao Decai said: "This is the worker Ye Yingeng. You can contact him to see what mechanical parts need to be processed."
Duan Zhu said: "Okay."
"Hello. I am Duan Zhu, a worker in a mechanical processing factory. I am here to communicate with you which mechanical parts need to be processed by us. I can measure its size on site and determine the structure of the parts."
Ye Yingeng said: "It's mainly some bolts and nuts. I'll show you some current design drawings of the building itself."
What needs to be done now is several slab-to-slab and floor-to-ceiling buildings, which is a type of slab-column structural system. The method is to repeatedly pour the floor slabs and roof panels on the underlying concrete ground, erect prefabricated reinforced concrete columns, use the columns as guide rods, and use hydraulic jacks placed on the columns to lift the floor slabs and roof panels to the design height and fix them. Upgraded buildings are more suitable for places with limited space.
Duan Zhu said: "So what are these buildings currently used for?"
Ye Yingeng said: "It can be used as shopping malls, warehouses, factories and multi-story garages."
Duan Zhu said: "It is really necessary to go to the site to have a look, otherwise it will be difficult to determine the shape and structure of the parts."
Ye Yingeng said: "How long have you been here?"
Duan Zhu said: "It didn't take long. I was an intern at a mechanical processing factory at the beginning. I decided to stay and work for a while."
Ye Yingeng said: "I have been working here for a while. I was working in Mining City before."
Duan Zhu said: "We also went there some time ago. There are some machinery and equipment in the mining city that were made by machinery processing plants."
Ye Yingeng said: "Then I won't be there when you go. Is the mining equipment over there running well?"
Duan Zhu said: "There are some problems with the temperature of some equipment. I don't know if it is the influence of the thermal distribution stone. Have you heard of this kind of stone?"
Ye Yingeng said: "I heard about it. When I was there, I also heard about some strange stones."
Duan Zhu said: "This thermal distribution stone looks like agate, affecting the temperature distribution of the surrounding space."
Ye Yingeng said: "That may be the influence of these stones. Have you found the stones nearby?"
Duan Zhu said: "No, it may be in a deeper place. Moreover, the mineral deposits in the nearby Zhuli Mine have also gradually decreased."
Ye Yingeng said: "I think it should be the influence of this stone. When the heat is superimposed to a certain extent, such as higher than 1600 degrees, then it can be used for steelmaking. Did the pillar ore melt?"
Duan Zhu said: "What you said makes sense. But it's not easy to find the location of the stone under the mine. What did you do there?"
Ye Yingeng said: "It turned out to be construction workers over there, near the Pillar Mine. At that time, they were still doing some ordinary buildings. Reinforced concrete structures. Let's continue to take a look at the construction and mechanical parts here."
The exterior walls of buildings with elevated floors can be brick walls, block walls, prefabricated exterior wall panels, lightweight composite wall panels or curtain walls, etc.; sliding formwork can also be lifted and exterior walls can be poured when the floor slab is raised. Rise-slab buildings generally have larger column spacing and stronger floor bearing capacity.
Bolt connection is to use bolts and embedded parts to connect prefabricated components to prefabricated components or prefabricated components to the main structure. Sleeve grouting connections, grouting overlapping connections, post-cast connections and wire rope sleeves plus reinforced pin connections are all wet connections. Bolted connections are dry connections. Bolted connections are the main connection method for fully assembled concrete structures. Structural columns and beams can be connected. When low-rise or multi-story buildings with non-seismic design or low seismic fortification intensity design adopt fully assembled concrete structures, bolts can be used to connect the main structure.
Duan stayed in the factory to look at the building itself, and then determined the structure and size of the bolts.
