Grave robbers are digging holes underground. Why can they dig a hole without discharging sand?

For example, if you dig a hole more than ten meters down, there will be no soil on the ground! A layman like me can't even think about it. It can't be like this! ..... I didn't believe it at first, but I did, because I believed it on the spot. Let me find a hole at the scene ... I can't find it walking around! I turned around and said, "that's where you stand now ... at your feet, you stand on your mouth!" " "This scared me. Get out of the way ... Then somebody else found a shovel and dug where I was standing. A minute later, I saw a hole. ..... Originally I was standing on a "grate".

Grave robbers will seal the hole when they finish their work. Now open it ... it's just a hole the size of a manhole cover. Open it and look down. Go straight for more than ten meters. I can't see it in the middle of winter. People also say ... you can go down if you have the courage! The bottom is strong and won't collapse. You can go down and see the grave. I said forget it, a hole as high as four or five stories ... makes me dizzy. What is even more strange is that ... it is surrounded by a plain, flat land, and crops are planted. There is such a manhole cover in the green tent, and there is no mound for hundreds of meters and miles outside. It is impossible to pile the soil outside, and the hole is so small that it has to be sealed when working. No one can tell!

Although I don't know how to do it ... I must admit this fact! It is said that this hole was opened by grave robbers more than a year ago. After more than a year, the hole is still strong and won't collapse. I don't know how to do it. Eyes to look at ... I don't understand. And "look at the terrain", which is even more mysterious. People who don't know can't see it when they walk by the grave. People who know the trick can see it a few kilometers away. Some grave robbers "like" to come out and "walk" after it snows ... especially like the snow with "extremely fine snow particles".

The reason is related to "soil". Soil is divided into "ripe soil", "living soil" (also called "flower soil") and "dead soil". Experienced grave robbers can tell at a glance whether there is an ancient tomb here, or even at a glance what era it is. The graduate student of the department of archaeology I know was arranged by the school to explore the Three Gorges when he graduated from college (the rescue excavation of prehistoric culture, which has now been submerged after the Three Gorges rose). He told me ... what kind of soil has what kind of characteristics is very clear. And interestingly, he himself admitted: our level can't be compared with those who really engage in grave robbery, and our experience is far from perfect. We mainly focus on theory. What do you find ... analyze it, see its characteristics, and analyze when it was. This is ok, but if you really want to "find a grave" ... it will be a joke. First of all, the tombs of various dynasties have their own characteristics, such as the characteristics in shape, and so on.

Mastering these characteristics can get twice the result with half the effort. You can probe with a probe first, and "feel" whether there is an ancient tomb according to the feeling on your hand. After confirmation, shovel, such as: shovel down 10 meter, and then ... look at the depth and see what is shoveled out. Depth is also a sign. There are sawdust, cinnabar, pit ash, etc ... these are all characteristics; Then, square the shape of the grave with a trowel. Is to correct the coordinates. Hit the one on the left ... miss ten meters, that's "finished", and then go back to the right to continue playing ... and so on, connect the dots one by one, that's the shape of a tomb more than ten meters underground. Then, according to the shape, depth, pit ash, wood (or stone, brick) and other characteristics of the tomb, we can infer the age of the tomb, the location of the tomb door and so on.

Generally speaking, the arrangement of tombs and artifacts in any dynasty has its own rules. Looking at the shape of Han tombs, whether in the Eastern Han Dynasty or the Western Han Dynasty, there will always be an "image" in your mind ... where the coffin should be, where the pottery is buried, where the metal utensils are, what will be in the wing rooms on both sides ... and so on. When you really go downhill ... just dig there (Han tombs are generally collapsed, filled with earth, said to be tombs ... in fact, they are all soil, moving forward in the soil, and everything is in the soil). This is the characteristic of the "left shoulder and right foot" I mentioned in the above post ... generally, expensive funerary objects will be placed in the coffin of the tomb owner, with the left shoulder and right foot.

In other words, before you dig a tomb, you will have the concept of the whole tomb in your mind. When you really dig down, you will go directly to the place where you want to find something ... There are also some tombs, such as Ming tombs and Qing tombs, the top of which will be very thick (think about it ... seven vertical, seven horizontal and fourteen layers of blue bricks, which will be more than two meters thick and how strong they will be! ), avoid the top of the tomb when digging a hole. Otherwise, if you hit the top of the tomb ... you may not finish the work in one night, but dare you come the next day? Maybe the police are already waiting for you. Therefore, once the shovel touches the brick (the shovel will bring brick dust when it is lifted), it is necessary to avoid the top of the tomb when opening a hole.

Anyway, the shape of the tomb has always been "square". You know the position of the entrance, the wall and the top of the tomb, so when you open a hole, you will naturally find another place to fight ... This "other place" may sometimes be close to the entrance, and sometimes it may be close to the back wall of the tomb. This is all possible and depends entirely on the shape and characteristics of the tomb itself. After looking at the shape, I think the coffin in this tomb may be near the tomb door, so when digging a hole, it is close to the tomb door, and vice versa ... there is no problem with the "pyramid-shaped stone" you mentioned. If this thing really existed ... it came out as early as when you were shoveling on the ground. When you make a hole, avoid it ... and directly hit the back wall of the tomb. A tomb, like a tank, has its armor (tomb wall, anti-theft layer) and fortress (tomb top is very thick), but it also has weaknesses. The weakness is the tomb wall, or the bottom of the tomb.

Some grave robbers see that the tomb is too strong and the top and surrounding areas are difficult to handle, so they simply add a vertical well and a horizontal well ... and then go directly to the bottom of the tomb. After reaching the bottom of the tomb, continue to open a shaft downwards, and then dig up with tools to dig through a small hole at the bottom of the tomb. It's very simple ... the floor, stone, wood, etc. at the bottom of the tomb go directly into the shaft. Then you can enter the tomb through this small hole ... so that the walls and top of the tomb are not destroyed, but the tomb itself is looted.

Generally speaking, you don't need that much effort. Take the Ming tomb with masonry structure as an example: its back wall is the weakest, basically there are only two layers of bricks, so when drilling vertical holes, you can drill along the back wall of the tomb, and it is not troublesome to dig up the tomb wall with two layers of bricks. As far as I know, for the Ming Tombs, almost all the ancient pirate caves are open to the back wall. Observing the profile of the tomb-robbing route ... you can see at a glance that it is an ancient thief who went straight to the back wall of the tomb. It's very narrow, but the purpose is quite strong ... Before liberation, many people robbed tombs, only one person did it, only one night ... wearing rat clothes, using both hands and feet, digging holes, entering the tomb, taking things and leaving ... This is quite difficult. At that time, when a person couldn't get out of the vertical shaft, he left the tomb for a certain distance, then dug down at a certain angle ... beat around the bush, touched the back wall of the tomb, and then passed through ... The calculation was very accurate.

Grave robbers also have their own hobbies. Some specialize in excavating Han tombs and pre-Qin tombs. He doesn't know what to do if you let him steal the Ming Tombs. If he is really in a hurry, he may give you a "big secret" ... blasting the top of the tomb with explosives, which is not something that "experts" do. ..... have a plenty of specialized excavation of Ming and Qing tombs. You told him there was a Han tomb here, but he couldn't find it, no matter what. These two kinds of tombs are not the same type, with different methods, different observation angles and great differences. They look down on each other. ...