fantasy novels Chapter 580: The Construction Of Multi-Story Salt Ponds, Surprises Brought By Ming Craftsmen [Please
Chapter 580: The Construction Of Multi-Story Salt Ponds, Surprises Brought By Ming Craftsmen [Please
“After building the embankment, it is time to build and repair beaches, that is, to build multi-layered salt ponds for drying sea salt, or multi-layered salt fields or multi-layered salt flats.
"One hundred and seventy-five acres of the salt pond is a salt-drying unit, and the salt pond of each salt-drying unit is divided into seven layers."
"The first layer of salt ponds covers an area of 40 acres, the second layer of salt ponds covers an area of 35 acres, and the third layer of salt ponds covers an area of 30 acres..."
"By analogy, the area of each salt pond is reduced by five acres."
“In the end, the sixth-floor salt pond covers an area of fifteen acres, and the seventh-floor salt pond covers an area of ten acres.”
“The height difference between each layer of salt pools is four inches, and there is a door between the upper and lower pools to allow water to flow downward.
"All salt ponds are made of cement concrete to prevent water leakage."
"At the same time, after the construction of the multi-layer salt pond is completed, a layer of colored glaze will be laid on the bottom of the pond and around the pond walls."
"Because seawater is corrosive to cement, concrete, steel and other objects, but its corrosive effect on colored glaze is almost non-existent."
"So if we don't put a layer of colored glaze on the bottom and around the multi-layered salt pool built of cement concrete."
"Over time, seawater will gradually erode the salt pond built of cement concrete, and even eventually destroy the overall structure of the salt pond, causing water leakage and other problems.
“In addition, the top of the salt pond is covered with a transparent glass sheet to protect it from rain, preventing a heavy rain from turning the high-salinity brine back into low-salinity fresh seawater.
"On the outside of the salt pond, there are glass magnifying glasses with a diameter of one foot."
"These glass magnifying glasses will concentrate sunlight and then focus it through the transparent glass pieces above the salt pool into the multi-layered salt pool.'
"This will further increase the temperature of the seawater in the multi-layer salt pool, thereby accelerating the evaporation rate of seawater."
"In addition, what you saw before are the glazed reflective mirrors standing above the outer wall."
"They will accurately reflect the part of the sunlight that shines on themselves onto the glass magnifying glasses surrounding the salt pond."
"This increases the amount of sunlight that can be collected by the glass magnifying glass around the salt pool, which also further increases the temperature of the seawater in the multi-layered salt pool, and finally greatly accelerates the evaporation rate of seawater!"
Yan Changqing stood on the three-foot-high embankment and pointed to the multi-layered salt pond not far ahead.
Compared with building submarine pipelines, the technical difficulty of building multi-layer salt ponds is not too great.
But it is more cumbersome, and there are many other small problems.
For example, a multi-layer salt pool is covered with a glass cover to waterproof it.
However, the first layer of salt ponds can range from ten acres to forty acres.
Not to mention the current era, even in the previous life, it was impossible to produce a single piece of glass that could cover ten to forty acres.
So the solution that Yan Changqing originally thought of was to drive short flat stakes the size of an arm and one foot high into the multi-layered salt pond.
Then, the largest piece of glass that can be produced at present, with a length and width of 10 feet, is laid on the low flat pile.
Finally, with the help of these short flat piles, hundreds of glass sheets are densely laid on top of the multi-layer salt pond, thus forming a huge glass cover covering an area of ten to forty acres.
But this way, there will be another small problem.
Because if it is tiled, then there will be a huge glass cover area of ten to forty acres above the multi-layer salt pond.
Once it rains, most of the rainwater will stay on top of this huge glass cover, making it difficult to flow to the drainage channels on the left and right sides of the multi-layered salt pond.
This in turn causes the concentrated sunlight to evaporate the seawater in the multi-layered salt pond, which needs to dry and evaporate the rainwater on the collecting glass cover above the Dokan salt pond.
In this way, the evaporation efficiency of seawater in the multi-layer salt pond will be delayed.
However, this problem was easily solved by a construction craftsman.
That is to adjust those low flat piles into uneven low flat piles, so that when the glazed pieces are laid on the low flat piles, they will form a slight tilt angle.
And let the edges of the slanted glass pieces overlap each other, and let the edges of the taller glass pieces overlap the edges of the slightly lower glass pieces.
In this way, when it rains, the rainwater will flow along the inclined glass pieces from the high end to the low side [and finally fall into the channels on both sides of the Duokang Salt Pond.
This solution, to put it bluntly, actually makes use of the principle that the roof tiles in the building are placed on top of each other and connected to form ditches to drain water.
This is a very common roof waterproofing and drainage method in buildings of this era. More than 99% of buildings use this waterproofing and drainage method.
However, Yan Changqing came from a later generation and lived in large bungalows and buildings. Due to the preconceived notions of later generations, he did not think of such a solution.
At the same time, this small and inconspicuous thing once again taught Yan Changqing, who is only a graduate student in science, not in architecture.
In other areas, he can guide others, but in construction, "he is undoubtedly a layman guiding an expert."
Therefore, during the subsequent construction of the multi-story salt pond, Yan Changqing did not take the initiative to arrange specific construction matters.
Instead, it is more about putting forward your own needs and the results you expect to achieve.
Then the professional construction craftsmen will transform it into a specific construction plan based on his needs and expected effects.
Finally, he reviewed whether the construction plan met his needs. If it met, he would directly build it according to the plan proposed by the craftsmen.
...asking for flowers·0
And when Yan Changqing changed his attitude and no longer participated in specific construction matters, that is, he no longer guided the experts by laymen.
Not only did the overall construction speed increase a lot, but the Ming craftsmen also brought him many surprises.
For example, in order to facilitate the flow of high-salinity seawater from the upper salt pond to the lower salt pond, the salt ponds on the first five floors were also built into salt ponds with a slight slope.
This means that the bottom of the salt pond is not flat, but has one side high and one side low.
For another example, the pool door between the upper and lower pools was also set up to open and close automatically by Ming craftsmen.
And this method is also very subtle, that is, placing a fish float, or wooden float, in the salt pond.
The other end of the wooden float is connected to the pool door. As the seawater in the salt pool gradually evaporates, the height of the water surface where the wooden float is located will slowly decrease. At the same time, the closed pool door will be subject to the upward pressure of the wooden float. The smaller.
0.....0
When the seawater in the salt pond is evaporated to a certain extent, the wood drifts that have dropped to a certain level will not be able to suppress the pond door.
At this time, the pool door will automatically open, allowing seawater with a certain concentration of salinity to continue to flow into the next layer of salt island.
When the seawater in the salt pond completely flows into the next layer of salt pond, the wooden float that hits the bottom will fall to the corresponding mechanism position. The mechanism position will be affected by the weight and react, causing the pool door that was originally opened to close again.
Even Yan Changqing couldn't help but be amazed by this exquisite setting.
Then Yan Changqing was very interested and wanted to know more about it.
Finally, under Yan Changqing's questioning, the craftsman hesitantly told Yan Changqing that this was a mechanism often used in the tombs of princes and nobles.
In order to prevent their tombs from being stolen, the tomb owners would set up such a mechanism on a certain floor in front of their six gates.
Once someone walks to a certain floor in front of the tomb door, the floor will be heavy due to the force, thus releasing the crossbow connected to the other end and directly shooting the tomb robber!!!
The ancestors of this craftsman built tombs for princes and nobles, so he also knew some institutional knowledge in this area.
In addition to the unexpected surprise given to Yan Changqing by the craftsman who built the tomb of his ancestors, there were many other craftsmen who also gave Yan Changqing big or small surprises.
It was thanks to the efforts and surprises of these craftsmen that Yan Changqing was able to build the multi-layered salt pond he needed in a short period of time.
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