These stakes are driven in approximately every half a meter, and are more numerous and densely packed at the corners of the wall.

After this work was carried out for about eight days, a row of wooden piles about thirty to forty centimeters above the ground appeared on the westernmost excavated foundation.

It is somewhat similar to the steel bars standing on the foundations of later generations.

The wooden stakes appear to be uneven, but there is nothing that can be done about it. After all, there are no axes, saws, or hatchets to break the wood. It is rare to have a size that is almost enough, and it is very difficult to keep the size uniform.

However, the wooden stakes nailed into the ground had uniform specifications and were at least 40 centimeters, because Han Cheng and his underage students had marked the bottom of these stumps at 40 centimeters.

The tree stumps have been nailed down, and the next thing to do is to weave the rafts and then mix them with mud to build the wall.

The minors in the tribe have already got enough branches for weaving rafts.

Since the branches needed to make rafts did not need to be very thick, they were able to break them from fallen trees.

The weaving of the raft is relatively simple. You only need to arrange branches of suitable thickness and that are relatively straight on the ground, and then use relatively flexible vines to weave them horizontally and fix them.

It's a bit like weaving a bamboo mat.

Of course, the techniques are not exactly the same, and the wooden raft is much rougher than the bamboo mat.

Among all the adults in the tribe, Lame had the most skillful hands. Because of his inconvenient legs and feet, he could not go hunting or do heavy work like the others. He did not want to be an idler, so he worked hard on his hands.

To put it in a not-so-good way, this is just like the fact that blind people's hearing and sense of touch are much stronger than ordinary people.

In the weaving of rafts, lame is the most important worker.

Han Cheng had never done this before, but he had seen it and knew some general methods. After he told Bo about it, the two of them began to study it.

The technology behind this thing is not complicated. It only takes one day to produce results.

However, this thing is different from weaving a fish cage, because vines and other things are much harder than ropes. It is difficult to weave it without a certain amount of strength, at least Han Cheng can't do it now.

After researching and determining the weaving method, Han Cheng called two people with more dexterous hands to learn how to weave the raft from Bo...

The wooden rafts, three meters long and more than half a meter wide, were erected horizontally on both sides of the foundation at the south corner, facing each other.

In the middle of the two rafts, there were two tree stumps about half a meter long, with some unclean branches on them.

There are two tree stumps, one at each end, to prevent the two rafts from coming together.

The two rafts are evenly tied with four rattans, and one end is blocked vertically with a raft that is half a meter wide and one meter long, and also tied firmly with rattans. In this way, a rectangular model is completed.

Next, we need to pour the mixed mud into it.

There are also some requirements for mixing mud. Pure mud may not have enough viscosity to cast such a wall, so when mixing the mud, Han Cheng added some rope grass cut into half a meter lengths, as well as some other grasses that were not as tough as rope grass but still had considerable toughness, and even sprinkled a handful of salt into it.

The role played by rope grass and other materials in the mud is the same as that of thin steel bars, which can connect the mud to a greater extent.

As for the salt…

Han Cheng really didn't know what role it would play in there, but he just remembered seeing it put in when people were making stoves with live mud.

Since it is placed inside, it must have its significance. Han Cheng attaches great importance to this wall. Salt is not particularly abundant for the current tribe, but building a wall is even more difficult.

In order to prevent any regrettable defects from occurring on this thing that took so much effort to make, Han Cheng sprinkled salt in without hesitation.

The construction of the wall also requires division of labor and cooperation.

Some people were responsible for carrying water, some were responsible for digging soil and mud, some were responsible for putting the prepared mud into the space enclosed by the rafts, and some were responsible for spreading the mud flat. Then, after it accumulated to a certain thickness, they began to use large and thin wooden stakes to hit the mud hard, making it more solid and solidified into one.

Of course, the mud cannot be too thin. You just need to make the upturned soil moist, mix it with grass and salt, and stir it vigorously for a while. Then you can use animal skins and previously burned clay pots to fill the gaps between the rafts.

"Boom! Boom! Boom!"

Making the wet soil solid is an extremely laborious task, and is done by strong adult men such as the eldest and second brothers.

The muscles on the eldest brother's arms bulged, and then suddenly stretched out, followed by a muffled "dong" sound.

The muscles on his arms bulged again, and the wooden stake in his hand rose up, and a mark the size of a bowl appeared on the wet mud.

This mark is at least half a centimeter lower than other places!

Sweat slid down his body, fell to the ground, and broke into eight pieces.

The beauty and hard work of labor are intertwined to form a picture called life.

There may be casual success in this world, but there are really not many such successes.

Most successes are the result of tremendous effort, hardship and training, and they are flowers watered with blood, sweat and perhaps tears that bloom only after great effort.

This section of the wall, about nine meters long and half a meter high, was finally built. This section of the wall also includes a corner.

Han Cheng did not rush to have the raft removed, but instead put another layer of rafts on top, still following the previous operation...

Because a 30-centimeter-deep foundation had been dug previously, after three layers of rafts were laid, this section of the wall was only about 1.2 meters above the ground.

This time it can only be this high. If it wants to be higher, it will need a scaffolding.

The eldest brother and his men used stone knives to grind and cut the vines that tied the raft, and then used a stick to pry the edge a few times, and the raft that was stuck to the earth wall fell down.

After seeing the wall, Han Cheng's somewhat uneasy heart finally calmed down. Although the surface of the wall was not flat, it was very good overall, with no cracks and no looseness.

Although they are made of mud, their half-meter thickness, the tough grass inside the mud, and the strong pounding by the eldest brother and others have caused them to undergo a qualitative change.

After this tempering, they are no longer the loose lump of soil that can be kneaded by anyone!

The eldest brother imitated Han Cheng and reached out to touch and push the earth wall.

At first he was worried that he would knock over the clay object, so he didn't use too much strength.

He just tried to test the force, and after seeing that the earth wall was fine, he gradually increased the strength.

In the end, the eldest brother was so frustrated that his face turned red and his neck became thick, but he couldn't do anything to the earth wall.

He looked at the earth wall, then at Han Cheng, his eyes shining. The wall that the Son of God had described did not disappoint!