Master Liu and his disciple first went inside and used the compass to adjust the positions, drawing lines with limestone powder at five points: due south, due north, due east, due west, and the center.
At exactly nine in the morning, the construction crew and laborers began excavating simultaneously with excavators at those points.
In fact, it was almost the same location as where the coffins had been buried before, only now they were making the original location larger.
As the excavators continued digging without interruption, after the pit was dug, the laborers began by pouring quick-setting cement around it, then lifting the crystal coffins out from the truck and carefully placing them into the pit. Around the coffins, they laid wooden boards and steel bars, then added cement and gravel, finally covering it with soil on top.
After being secured so tightly, the crystal coffins would not be damaged unless someone excavated nearby.