So, when will this mysterious mausoleum open? Experts believe that according to the current conditions, many technical problems have not been solved, and the time for excavating the mausoleum of the First Qin Emperor is not yet ripe. The main difficulties are as follows:
1. The mausoleum of the First Qin Emperor is huge, with an area of about 500 by 500 meters. According to the usual archaeological procedure, it is necessary to uncover the top, remove the sealed soil layer by layer, and then dig it into the underground palace layer by layer.
Needless to say, to protect the underground palace, it is necessary to build a permanent protection hall with a span of 500 meters. There is no precedent at home and abroad to build such a large-span hall, and the cost is extremely huge.
2. In addition, the groundwater level in Qinling area is quite high, and water will be seen at 16 meters above the ground. The underground palace is below 26 meters. When digging, if there is no extra-large drainage equipment, the whole underground palace will be flooded.
3. There is a lot of mercury in the mausoleum, forming a dense mercury sealing layer. How to pass through the sealing layer is also a problem.
4. How to save the unearthed cultural relics is also a big problem. Archaeologists encountered this situation when excavating the terracotta warriors and horses in Qin Dynasty. At that time, the soil was open, and the terracotta warriors and horses were all brightly colored painted pottery, but soon after they were unearthed, all the colors faded and became all taupe.
A large number of silk fabrics were unearthed in Dingling, Beijing, including a dragon robe. At that time, the most advanced technology in the world was adopted for protection, and the result still failed.
With a slight movement, the dragon robe may become a pile of fragments or powder. At present, these technical problems have not been solved, so the mausoleum of the First Qin Emperor cannot be excavated for the time being.