The housekeeper was organizing people to dig wells, and Yang Heng also started his construction work.

The job of digging a well is very simple, first of all, it is to dig out a place with a diameter of about four feet, when the depth reaches seven or eight feet, Yang Heng's special cement pipe will be put down, this cement pipe has a diameter of four feet, and now Yang Heng still feels that these things are bigger, more than three feet high, in order to be strong, Yang Heng also specially thickened the thickness of the cement pipe, which is more than three inches thick, once the cement pipe begins to go in, there is a small one that can be excavated in the cement pipe. Someone above used a basket to pull up the excavated soil, for the sake of the safety of the people digging the well below, and put on a bamboo helmet for him, so that the basket fell down, hit the head, and there was not much of a deal, even, Yang Heng also set up some copper nails around the cement pipe wall that can hang things, when the excavation reached a certain height, you can also hang a few ropes on the copper nails, and only leave an opening that can make the basket up and down, so that the basket falls down with the soil full of baskets, It will not hurt the people below.

Pulling the rope on it is not directly pulled manually, Yang Heng but designed a large roller, so that several people need to cooperate to dig the well, there are swinging rollers, as well as monitoring the rocking rollers, as well as carrying baskets and pouring soil, naturally there are cement pipes down, after the people below dig out a section, the cement pipe will fall down due to its own weight, if it falls to a certain depth, a section of cement pipe will be added, unless it encounters an overall collapse, otherwise, there will be no danger, and the lighting below the well. Yang Heng used the reflected sunlight of several copper mirrors for lighting. In this way, there will be no phenomenon of burning torches and burning oxygen dry. In addition, in order to ensure that there is enough oxygen below, it is still necessary to light a small oil lamp, once the lamp is naturally extinguished, people must quickly sit in a special basket to pull it up, and then fill it in, or pump it out, until the environment inside is suitable for the next person. Will dig again.

If there will be accidents under such strict protection, it can only be said that it is providential.

What about Yang Heng, what does he want to prepare, what he needs to prepare is to build a wellhead of a pressurized water well, and some water pipes, this wellhead is easy to make, but the water pipes are difficult to make, and the wellhead only needs to make sand molds. Then pour in molten iron and you're done. After it is done, let some people do fine polishing, and the head of the well will come out, and some joint construction because Yang Heng has made copper bolts and copper nuts in front of him, so that there is also a mold, and it is easy to make some steel bolts and nuts, but they need to be quenched.

The piston in the well head needs to use rubber products, there is no way to do it, naturally it is still made of some felt, which is also the reason why Yang Heng will polish the inside of the well head very smoothly, this grinding is divided into many steps, first rough grinding, then play grinding, and then use linen to polish finely, but a lot of linen is wasted, and ordinary people can't afford to consume it.

But the most difficult thing is the production of the suction pipe, what to use as a suction pipe, Yang Heng has considered the bamboo pole, but the bamboo pole will rot after a long time, and the joint is difficult to seal, or made of animal skin, connected with glue, the water pipe that comes out of this can be, but it is too soft, not suitable for water absorption, that is, the water pipe, it is not suitable for use, the cost is too high.

After the last, Yang Heng still decided to use an iron pipe as a suction pipe, coating a layer of glue inside and outside to prevent rust, as well as preventing air leakage, and even connecting, but this connection method is a bit complicated, the cement pipe that has been entered in advance, and the cement pipe that has not been entered, all need to be drilled to fix the iron water pipe, and the fixation is also fixed with copper nails and copper wires, so that it will not rust.

Finally, when the well began to produce water, all the configurations of the pressurized water well were completed.

Some people say, for what to do not use a roller to lift water, but use a water press, there is a reason here, that is, after the water level under the well is too deep, how to pump water up a problem, bucket by bucket, that is not possible, if the bucket can be raised, keep up with the well, the well will not be of much use, not to mention the big drought, a small drought will not have water, but the five-inch diameter of the pipe, as well as a large diameter of the water press, several strong laborers together to press the water, the following introduction of the large amount of water, can also dig deeperHowever, the setting of this water pipe still wasted a lot of Yang Heng's energy, before the well was dug, it was impossible to fix the water pipe on the wall of the well, only to fix it in other ways first, and the above pressurized water wellhead and water pipe are up and down together, in this way, there are a lot of insurance equipment in the underground facilities, and even the person who digs the well must be able to swim, at least he must be able to hold the water, otherwise once a large spring water comes, then it will be soaked in water, and then slowly pulled up by the people above.

"Out of the water," the people who observed the well shouted loudly, really thinking about something, when there were nearly fifteen pipes down, there was a very prosperous water source, and the people in the well quickly fell into the well, even if they wanted to float up, it was not so fast, fortunately Yang Heng had already prepared, "Hurry, hurry, quickly pull the rope, pull the rope in his waist." At this time, there is no way to pull other ropes, I don't know if he has caught it, he can only pull the emergency rope in his waist, this rope is tied in the waist, and a piece is also tied in the chest, and then this rope will be pulled up at the point of about half a foot below his neck, this pull, he will not be suffocated in the well, and will not suffer any damage.

"Ah......, it's suffocating me." Finally, a shout came from the well, it seemed that he was out of the water, "Pull, continue to pull, it seems that he has nothing to do, come here, prepare ginger soup, some clothes and quilts or something." "Why prepare these, in the well, although the temperature is not very high, but there are more than ten degrees, nearly twenty degrees, once it appears above, at this time it is more than 20 degrees below zero, if someone dies because of digging the well, Yang Heng will definitely regret it for the rest of his life, this well can actually be dug or not, that is, it is to direct water from the river outside, the speed will be very fast, and it is very safe, and it will not waste so much money, Yang Heng's idea of digging this well is, There will not be any mineral water suitable for brewing water quality to be dug up, you must know that in this era, some natural things in this place have not been destroyed, and the mineral water may be very large, and Yang Heng has also observed the surrounding mountains, for some of the directions of the mountains, there will definitely be water in the mountains under this, so that although these waters are not mineral water, the water quality is also incomparable to the river water.

Sure enough, judging from the water bubbling out of the well, it was water from the mountains, dug into the veins.

Sure enough, "I'm down there, I can't dig anymore, and there are some sounds, it seems that I have encountered a stone, I just worked so hard, I felt that a stone was a little loose, it seems that this is the waterline, and then, the water came up, and I was drowned, fortunately I will hold the water, otherwise this little life will be gone............"

The man digging the well was around the quilt, baking a fire, and bragging, and around him was a crowd of people listening to him.

"Okay, you guys don't chat, let people rest for a while, you hurry up and finish things." The butler began to pour cold water on him, and the people dispersed.

At this point, the water level was fixed at a position where there were six pipes from the wellhead, but it was only slightly lower than the river level in the distance.

"You guys, put away this water press, and the pipes are also put away, this place is not needed." Why put it away, this is specially designed for drilling wells, and the water pipe used is much smaller than the well, the diameter of the pipe is directly reduced to about one and a half to two inches, and the well head is only the same thickness as the previous water pipe, so that one person can use the pressurized water, this speed is much faster than using a roller to lift water, the same way, the pipeline Yang Heng did not set up not far from the water surface, but let people dive into the well, after many times to fix it on the wall of the well, it is completed. (To be continued......)