Chapter 253
A tall city wall rises from the ground in front of Lu Yan. Its height is estimated to be about ten meters and its thickness is nearly three meters. It is definitely a giant.
In order to improve its defense, Lu Yan had previously prepared a large amount of granite as a material for upgrading the wall. This stone can be found everywhere in the wilderness and is very cheap. Its hardness, weather resistance, and corrosion resistance are all those of stone. The best of them all!
Lu Yan took out an ordinary-grade steel knife and slashed it hard against the city wall. He only heard a clang. The blade of the steel knife came into close contact with the wall. The huge backlash made Lu Yan's mouth numb. He picked up the steel knife and took a look. , Its edge has already cracked, but there is only a shallow white mark on the city wall.
"This kind of defensive power can definitely withstand the attacks of those large dead objects!" Lu Yan laughed. He was very satisfied with the amazing defensive power of the city wall. Even ordinary steel could not leave too deep marks on the city wall. This level can definitely be called an iron wall!
After the wall was completed, there were no gaps on all sides of the entire camp. Lu Yan touched his chin. He had no plans to open a gate on the city wall for the time being, because once a gate was set up, it would definitely become the weakest defensive part of the wall. One ring.
So for the time being, he is going to build a ladder to get in and out, or... use a more direct method.
Lu Yan raised his head and glanced at the top of the wall. He concentrated on it. He bent his legs slightly and jumped up high with a sudden force. Then, the [Soaring Sky] necklace around his neck became slightly warm, and there was an inexplicable feeling. Power appeared under his feet, and with the terrifying sound of air explosions, Lu Yan completed a second jump in the air. His body also crossed the top of the city wall, and he jumped up easily!
The problem of entry and exit is solved!
Lu Yan had a smile on his face. Because of the player privilege system backpack, even if he wanted to transport a large amount of materials to the camp, there was no need to break through the wall. He just had to make a few more trips...
After building the city walls, the next thing to build is the drainage system.
Lu Yan once observed the terrain of this camp. Compared with the surrounding areas, it is still a small highland. Even if it rains heavily, there will not be much danger of water accumulation. However, after he built the city wall, the water in the camp will It is much more difficult to drain than before, so a complete drainage system is very important.
Unlike the previous underground shelters, Luyan plans to build this camp as a foundation for long-term residence and development of its power in the future, so the drainage system can no longer be as simple as digging an open ditch as it once was.
He is going to use underground drainage pipes that take up less space and are more aesthetically pleasing.
Lu Yan looked at the design drawings in his hand. He covered the locations where drainage pipes were to be dug in the camp with eye-catching white plant ash, and marked several drainage wellheads with stones. After nearly an hour of measurement, he finally The preset route and the proportions on the drawings have been reproduced, and the error rate does not exceed 3%!
It is not easy to do this without professional equipment.
Lu Yan picked up a shovel and began to break the ground. Soon, a dozen criss-crossing low and shallow ditches appeared on the ground of the camp.