Release that Witch Chapter 262: The bridge over Scarlet Water River

A week later, Roland officially started the construction of the steel bridge.

"You mean, let me raise two pieces of land in the middle of the river to serve as a foothold for the piers?" Lotus looked at the rolling river and asked in surprise, "Did you plan to build a real bridge, and Not using floating bridge to connect the two ends of the river bank? "

"Yeah," Roland spread out paper roll, "Considering the impact of the river, the two lands need to have a certain volume, and in order to reduce the impact force, they need to be processed like this."

"This is what the ship looks like," Lotus turned his gaze back to the drawing.

"Yes, exactly a spindle type," he nodded. "As long as it is parallel to the direction of the water flow, its front surface is the least impacted. The problem is that the Scarlet Water River is nearly ten meters deep and you can make the river bottom rise Get up? "

"This is not difficult to do, Your Highness," Lotus replied simply, "Leave it to me."

For the sake of insurance, the vessel responsible for carrying witch is H.M.S. Little Town. The wide cement hull is flat on the river, the helmsman is still Lightning, and the sail power is provided by Wendy.

But in the past week, when the latter saw the prince, he would look away a little and seemed uncomfortable. Until today, Roland only saw her raised head, looked straight at herself as usual, and when boarding the ship, he also heard the other side said "thank you" softly.

"You must remember this credit for me," Nightingale in the mist whispered in his ear.

H.M.S. Little Town quickly left dock and headed towards the center of the wide river. Carter has pulled hemp ropes on both sides of the river. The two red cloth belts on it are the expected positions of the erecting bridge pier. After the cement ship advanced to the first point, Lotus stood at the edge of the ship's side and began to perform.

I saw that the river surface suddenly looked like boiling and surged upward, forming a "mountain bag". After a while, gravel, grass roots, and silt emerged from the surging river, and the water gradually became turbid.

So that's it, Roland thought that her ability can not only transform solid ground, water is also included, but also it is easier to raise the water surface than loose gravel. Although the rising river rolled down immediately, the riverbed had already been lifted up a little.

It didn't take long for a mass of turquoise mud to surface, it looked very soft, and exuded an unpleasant odor, and everyone couldn't help covering their noses.

However, in the eyes of Roland, these are all good fertilizers. For centuries, the bones of fish and other aquatic life, aquatic weeds, and the feces of residents have been deposited in the soil a little bit. If it weren't for the convenience of transportation, he would have liked to use the soil for fertilizer. Unfortunately, it can only be removed by hand and thrown directly into the river.

Just clean up one layer and lift it up. He finally sees the tan solid soil. The next step is to repeat this process until all the two lands are trimmed.

Roland expects this process to last at least a week or so, but just lifting the land out of the water surface means that it can be used directly. The flowing river water will continue to take away the sediment. Without protection, even spindle-type land, Can't stand it for more than ten years.

He called Karl van Bate to his side, took out a charcoal pencil, and described how to solidify the ground next.

"Do you mean to dig grooves on the edges of these lands and fill them with cement?" the current Minister of Ministry of Construction asked with a drawing.

Not a bad member of Kingdom Capital Stonemason, Roland thought with satisfaction that he only reminded him a few words and he immediately understood his intention.

"Yes, each section should not exceed five meters in length, and the depth should be controlled at about one meter. After being filled with cement, let witch lower the groove by one meter. Repeatedly, a cement wall can be formed that is inserted directly into the bottom of the river bed. ”This solution came up after Roland saw Lotus's ability. Since she can control the ground to fall straight down, she must also bring the structures built on the ground into underground.

"Your idea is so clever," Karl's eyes lightened. "This way, even if the river washed away the dirt outside, it would be blocked by the tightly wrapped wall."

Roland nodded, "The key point is to control the overall height of the sinking. If it is less, the bottom will not be tight. If it is too much, it will waste cement and delay the construction period. You are responsible for controlling."

"Yes, Your Highness," he answered. "Including the dredged mud and soft soil, I estimate that the whole height should be about twelve meters."

"In addition, after the surrounding concrete wall is good, the land in the middle should not be covered with cement. I will plant flowers and grass on it in the future," the prince urged.

"Planting ... Flowers?" Karl froze.

After all, these enclosure walls cannot be drip-proof, and if they are constructed in sections, there must be even gaps in the walls. To further stabilize the soil, the simplest way is to plant grasses to balance the soil moisture and reduce soil erosion, especially the super-long root weeds after the Leaf magic modification, which can ensure that the soil is firmly consolidated.

A brief explanation of the soil conservation effect of the next plant, Roland turned and looked at the busy workers on the river bank, "How is the approach bridge now constructed?"

"The cement gravel road surface is being laid," Karl reported without thinking. "It should be completed this week."

According to the plan, the approach bridges on both sides of the river are made of woolen cement, just like the Western Region city wall. As long as the positioning and surveying work is done, the construction itself is not difficult. The **** of the bridge deck has been raised by seven meters relative to the ground. It is connected to the urban street through a long and gentle **** with an arc, plus the height difference between the river bank and the water surface. When the iron bridge is completed, it should be able to form ten to twelve with Scarlet Water River. The clear height of the meter is basically sufficient for inland river sails.

The main bridge has only completed one span at present. The main frame is being tested on the shore. Because the span is not large and the load is extremely low, Roland has no worries about its reliability even if it has no knowledge of bridge engineering. In the age of eight rounds without overload, a 30 cm high I-beam is a guarantee of stability. Even if it is full of people, impossible will break the steel beam. What's more, from processing to assembly and welding is Anna, the probability of the tofu residue project is extremely low.

Similarly, its installation is also very simple. After the three-span main bridge has been prefabricated, it will be lightweight by Hummingbird and then delivered to Lightning for hoisting.

When this steel bridge, which can be used for two horse-drawn carriages side by side, stands on Scarlet Water River, the two sides of the north and the south are truly connected as a whole.

"Even the greatest Stonemason, it is difficult to imagine such a magnificent bridge," looking at the sparkling broad lake, Karl exclaimed, "His Royal Highness, does this steel bridge have a name?"

Roland thought about it, "Just call Scarlet Water Bridge." (To be continued., Your support is my greatest motivation.)