2. Digging: a tool used by the ancients to drill wells. The local language is called butterfly cone. The cone head is shaped like an icicle now, and there are two mud buckets shaped like butterfly wings on the upper part. During drilling, the cone head will also bring sediments into the mud bucket and then pull them out of the ground for cleaning.
3. Production of well radius: Well radius is generally made of larch board, and miscellaneous wood can be made without larch. The radius of the well is hexagonal, the frame is reasonable and the support is strong. Carpenters saw the selected wood into thick plates, carved mortises and tenons on both ends of the plates, commonly known as tenons and tenons, and then fixed the plates piece by piece according to mortises and tenons.
4. Downhole radius: Since most wells drilled on the plain are soil layers, the wells are deep and easy to collapse when encountering water, so the radius should be lowered when drilling wells. Where conditions permit, the surface water is shallow, and temporary wells can also be made with stones and bricks.
5. Borrowing soil: In addition, several technicians should be equipped for manual work. Under the command of the well builder, the mechanic proposed to wait until the mud in the mud bucket was full before cleaning it. At the same time, the carpenter lowered the radius of the well into the well layer by layer on the ground and then rammed it with a heavy hammer. And so on until the well comes out.
In fact, drilling wells is the use of groundwater. Ancient people attached great importance to drilling wells. Before drilling a well, please ask Master Fu Feng Shui to look at the place. On the one hand, it is necessary to accurately find groundwater; On the other hand, according to the principle of geomantic omen, the well should be drilled in a safe and suitable position as far as possible. Not only that, there is a more important stress in many places, that is, after digging a well, you should put a turtle in it. Why?
Of course, this custom also comes from a myth. In the ancient mythology of China, Suzaku, Xuanwu, Qinglong and Baihu were listed as the four great beasts, which also symbolized the four directions of southeast and northwest. Xuanwu symbolizes the north. According to the five elements, the north belongs to water, so Xuanwu is considered as the northern water god, and its shape is a combination of tortoise and snake. People raise turtles in the well, symbolizing that Xuanwu was invited to the well, hoping that Xuanwu, as the northern water god, would protect the water source in the well. Of course, this custom also comes from a myth. In the ancient mythology of China, Suzaku, Xuanwu, Qinglong and Baihu were listed as the four great beasts, which also symbolized the four directions of southeast and northwest. Xuanwu symbolizes the north. According to the five elements, the north belongs to water, so Xuanwu is considered as the northern water god, and its shape is a combination of tortoise and snake. People raise turtles in the well, symbolizing that Xuanwu was invited to the well, hoping that Xuanwu, as the northern water god, would protect the water source in the well.
As we all know, groundwater often contains a lot of minerals. In some places, some minerals in groundwater will exceed the standard and are not suitable for drinking. There was no testing equipment in ancient times, so putting a turtle down had the function of testing water quality. If the tortoise can't live in the well, then this well is definitely unusable. Of course, another reason is that ancient wars were frequent, and some people tried their best to destroy the enemy. As recorded in the General Introduction to Martial Arts, if the enemy invades, they will retreat if they can't beat them. But when retreating, they should take the method of clearing the field, take away everything they should take away, destroy everything they can't take away, and poison the wells. Later generations used this method in the war, and many innocent people died, so they were raised in wells.