Chen Xian made a simple level with a wooden sink and measured the relative topography around the reservoir, and found that if the ravine on the east side was completely intercepted, a reservoir would be formed that was more than 200 meters long, more than 40 meters wide at the widest point, and 145 meters deep at the deepest point.

With such a large reservoir, such a large amount of water, and such a large water depth, it is obviously unrealistic to intercept an earth-rock dam built with the technology of this era, and a dam seven or eight meters high, even if it is only about 20 meters wide, has too much earthwork.

After some thought, Chen Xian decided that the dam would only be built four meters high.

After the dam was lowered by four meters, the length of the reservoir was shortened to more than 80 meters, the width was only about 20 meters, and the average depth was only more than 4 meters.

Another advantage of this construction is that once a flash flood occurs, the water in the reservoir will first overflow the dam and discharge the floodwater, rather than climbing over the mountain beam, which poses a threat to Zhuangzi, which is planned to be built on the south side of the mountain beam.

However, because the reservoir is still five or six meters high from the top of the mountain beam, Chen Xian must also dig a ditch five or six meters deep to use the reservoir as an outlet for the reservoir and as a power canal for the new hydroelectric factory.

In order to build these two new Zhuangzi, Chen Xian had to put the chemical experiments on the development of soap and ether into the evening.

Compared with the construction of a reservoir, the project of Xiangshui River New Zhuangzi is relatively simple.

Chen Xianxian divided the engineering team into two, the first engineering team was responsible for the construction of Xiangshuizhuang, and the second engineering team was responsible for the construction of the Qingya River reservoir and irrigation system.

He put most of the craftsmen who had previously built the new Zhuangzi in the first engineering team.

In order to avoid mistakes, Chen Xian also invited Chen Laojia and some of his skilled craftsmen to come over to help the first engineering team.

Chen Xian personally led the second engineering team to start building reservoirs and irrigation canals.

Chen Xian did not know the construction technology of the barrage, he only remembered that when he traveled to Dujiangyan in Sichuan, he heard the tour guide say that in order to build the dam firmly, the ancients used bamboo to weave a long cylinder, and loaded the stones into the bamboo tube as the backbone of the dam.

Chen Xian painted a gourd with a scoop, found a carpenter, taught his workers simple bamboo weaving techniques, and then mass-produced cylindrical bamboo baskets, filling the bamboo frames with large and small stones as dam foundations.

In fact, this kind of bamboo frame with stones cannot stop the water, and the water will easily penetrate the gap between the frame and the stone, and continue to flow.

But it doesn't matter, when the bamboo baskets are piled up to a certain height, Chen Xian asks people to cover the soil with the bamboo baskets as the foundation, and in the end, the dam formed is based on a bamboo frame containing stones as the dam base and skeleton, and the outer layer is covered with thick soil, which can not only hold back the water, but also have a certain strength.

Chen Xian divided the more than 300 people of the second engineering team into six groups, one group was responsible for weaving bamboo frames, one group was responsible for collecting and mining and transporting stones, one group was responsible for collecting and mining stones and transporting them to the vicinity of the dam, and one group was responsible for loading stones into bamboo baskets and stacking them in the river ditch.

In order to mine the stones, Chen Xian even used gunpowder.

The fifth group excavated ditches on the mountain beams designated by Chen Xian.

Chen Xian personally led a team to survey and mark irrigation canals.

The work of digging ditches does not seem to be very technical, but in fact, there are still skills.

The most critical part of digging a canal is the absolute height of the entire canal.

We all know that when the human eye judges the absolute height of the terrain, it is often disturbed by the terrain, sometimes we look uphill with the naked eye, but when we ride through, we feel very relaxed, and when we look downhill, it will be very difficult, which is caused by the illusion of the eyes.

Riding a bicycle to see the wrong uphill and downhill, at most it is a change of speed, if you get the relative height wrong in the canal, it will be troublesome, when the water is delivered, it is either not delivered, or overflowing.

Therefore, when building a ditch, it is important to determine the absolute height of the entire ditch.

Chen Xian filled a wooden trough with water and made a very simple level to measure the absolute height of the ditch.

In order to ensure the accuracy of the level, he made the level very long, more than three meters long, filled with water, played a straight line with the ink cartridge, and then leveled little by little, and when the water surface in the sink was parallel to the ink line, it means that the level has been in a horizontal position, and then observe the relative height of the target position along the level with the naked eye, and mark it.

Relying on this simple level, Chen Xian led people to dig a horizontal ditch about six meters from the top of the beam.

Once the dam is built, the water can be diverted to both sides through this gully.

According to the topography, Chen Xian built a horizontal ditch nearly a kilometer long, and after the water in the horizontal ditch was stored, the water could be diverted from the horizontal ditch to the low-lying area in the south through vertical canals that intersected with the horizontal ditch, forming irrigation canals.

As the families of his soldiers continued to move to Xinzhuangzi, Chen Xian's agricultural cooperative gradually became fully staffed.

Today's agricultural cooperative's peasant labor team is already a team of more than 200 people, using it to cultivate more than 1,000 acres of land, which is absolutely a waste.

Chen Xian sent the surplus labor of the peasant labor team to the dam construction site and asked them to open up land on the plain south of Shanliang.

For the growth of the population, Chen Xian is painful and happy.

Now there are nearly 2,000 people crowded into a small new village, and it is almost crowded.

After the brick houses inside Zhuangzi were repaired, Chen Xian arranged the families of his workers in the brick houses, and used the outer earthen houses as dormitories for the newly recruited Peng family prisoners and Yang family cannon fodder, and more than a dozen people were squeezed into each dormitory, and even the attic was full of people.

In order to receive the workers' families who were constantly asking for the victory after the victory, Chen Xian built two rows of brick houses back to back in the courtyard east of Zhuangzi, each of which had an area of only forty or fifty square meters.

Even so, the entire new Zhuangzi was completely saturated and could no longer accommodate the new population.

The density of the population has brought about the pressure of sanitation, and with such a large population density, once the sanitary conditions cannot keep up, it is easy to produce epidemics.

In order to control the sanitary condition of Zhuangzi, Chen Xian built two large bathrooms by the Beigou River, the bathroom is a two-story brick house, the first floor is a bathroom, and the second floor is a boiling water room, and the water is lifted to the second floor by a waterwheel, and several boilers on the second floor are heated at the same time, and the heated hot water is sent to the bathroom on the first floor through the hand-beaten and welded copper official, and is sprinkled through the copper pipe head.

Chen Xian stipulated that everyone must take a bath every five days and change into clean clothes after bathing.

He also set up a special health inspection team among the workers, which inspected not only the dormitories of the newly recruited prisoners, but also the household hygiene of each worker's family.

Chen Xian set detailed inspection standards for the health inspection team, the toilet must be cleaned every day, there must be no stagnant water in front of the house and behind the house, and bed sheets and bedding must be dismantled and washed regularly......

In order to eradicate parasites such as fleas, even if the families of workers are staying in the new Zhuangzi, they must take a bath and change their clothes, and the old clothes and bedding must be steamed before entering the Zhuangzi.

Fortunately, Chen Xian has absolute authority in the new Zhuangzi, and this kind of hygiene discipline that seems to people in this era to be completely taking off his pants and farting can be enforced.