The best little cute concubine

Chapter 117 Controlling floods [4]

"Split?" Xiang Yutian and Murong Jia said in unison, as if they had been enlightened, they immediately regained their spirits.

"Yan'er means to divert the water of the Lijiang River and manage it from the water?"

"That's right." Han Xiaofan nodded and said, "If possible, build a dike in the shape of a fish mouth in the upper reaches of the Lijiang River to divide the water of the Lijiang River into two, one for the Outer River and the other for the Inner River. The Outer River is mainly used for flood diversion. The function of drainage is to rely on the combination of the inner river of the city and the artificial channel dug to divert the water to the arid Biancheng for irrigation. This can not only divert floods and reduce disasters, but also divert water to irrigate the fields, and can make good use of natural disasters Have you risen to benefit the people?"

"Your Majesty doesn't know that the channel used to divert water is blocked by mountains, and the water cannot pass through the mountains! If you use artificial methods to move mountains, I'm afraid it won't be completed in 100 years."

Although it was a good idea, Murong frame immediately pointed out the impossibility.

"Is there any gunpowder?"

"What is gunpowder?" Xiang Yutian asked.He found that Han Jingyan seemed to know a lot more than him.gunpowder?He hadn't even heard of it.

faint!There is no gunpowder, so primitive!
"Then according to the principle of heat expansion and contraction, use fire to burn the stone to make the rock burst, so that the project can be speeded up. If it is too slow, you can find some sulfur and the like, match it with fire, and explode the stone."

"Expanding with heat and shrinking with cold? That's great! Your Majesty, if you follow what your mother said, when the flood comes, because we have a diversion embankment, the water will automatically divert and pass through the mountains to Biancheng, which is short of water. In this way, not only the lower part of the capital will not be flooded, but even Biancheng can be fully irrigated, and these two cities will solve the problem of drought and flood for many years." Murong frame said excitedly.

"En." Xiang Yutian nodded approvingly, but then thought of another question.

"But Yan'er, floods usually carry a lot of sand and stones. If the flood discharge channel we have worked so hard to dig is blocked by the sand and stones of the flood, and the water cannot pass through the watershed smoothly, wouldn't all our efforts be in vain?"

"Maybe we can send people down the river every winter to salvage sand and gravel?" Murong Jia suggested.

"If the amount of sediment brought by the flood is small, it can be done in this way, but if the amount of sediment carried by the flood is too much, the flood discharge channel will be blocked when the flood disaster strikes. What should we do?"

"This..." Murong frame couldn't answer for a while, so he could only look at Han Xiaofan. For some reason, he always felt that this little girl was not simple, and he would definitely live up to everyone's expectations and solve this problem.

Han Xiaofan smiled and said, "This is actually very simple, we just need to build a flying sand weir several hundred meters long between the water diversion weir and the mountain."

"Feishayan? How do you say that?" Xiang Yutian asked enthusiastically.

"To put it bluntly, this Feisha Weir is to dig another bend at the water diversion weir. Using the theory of swirling water flow, the Feisha Weir with a bend can make the river water circulate. When the river water exceeds the top of the diversion dam At that time, the mud and rocks carried in the flood will be automatically brought into the outer river, so that the inner river and the dug mountain pass will not be blocked."

After finishing speaking, Xiang Yutian and Murong Jizhen stood there without speaking for a long time. "Expanding with heat and shrinking with cold", "bursting", "swirling water flow", "flying sand weir"... These novel words that popped out of Han Jingyan's mouth excited them.

(End of this chapter)