Characteristics of ruler track

Chidao is the emperor's special driveway, and ministers, people and even relatives below the emperor have no right to go. It was the most popular in Qin and Han dynasties, and it was stipulated that it was fifty paces wide and planted trees on both sides.

Recently, in the mountainous area of Nanyang, Henan Province, I was surprised to find an ancient "railway (railway) road". According to carbon 14, it was left over from the Qin dynasty more than 2200 years ago. The principle is the same as that of modern railways. It's still a double track, but it's not a steam locomotive, it's a horsepower. Experts marvel at the advanced transportation facilities in ancient China 2,200 years ago. This will be a more amazing discovery than the Terracotta Warriors.

Today's railways are not made of iron, but rolled rails. Of course, Qin Shihuang's "track (railway) road" was not cast of iron, but paved with wood. The wood used for the track is hard and remains intact after anti-corrosion treatment. However, the sleepers have rotted, obviously not embalmed, and the material is not as hard as the track, but they can still be seen in general.

The roadbed is rammed firmly and sleepers are laid on the roadbed. Experts believe that the soft sleeper material can not only reduce the engineering quantity, but also open up a wide range of wood sources, but should be consciously selected. Soft sleepers can be closely combined with compacted subgrade to make the track stable and the car can run on it quickly and smoothly.

Everyone who walks on railway sleepers now knows that the distance between two sleepers is not suitable for people's footsteps. Crossing one at a time is too small, crossing two is too big, and walking on sleepers is slow and unaccustomed. However, after the measurement, I was surprised to find that the distance between sleepers in Qin Shihuang's "The Track" was just in tune with the horse's footsteps. Once the horse is pulled to the track, it will "self-oscillate" involuntarily, so it can't help running very fast and can hardly stop. Then how did you finally stop? The expert's opinion is that there must be a special station, and there must be wood filling between sleepers in the station. This horse eats well and rests here. Once you need it, you can keep flying. At the next stop, because the sleepers have been filled evenly, the horse can gradually slow down and stop. Put on another well-nourished and well-rested horse and continue to gallop forward. In this way, you can reach a very fast speed. Because of the use of the track, the friction is greatly reduced, so the horse can also pull a lot of goods at a time. Experts believe that this is the most economical way to use horsepower, or the most efficient way. The recognized speed should be at least 600 kilometers a day and night, and some people think it is 700 kilometers. This is more than twice the acceleration of 800. No wonder Qin Shihuang could manage a huge empire effectively without enfeoffment. And often hundreds of thousands of people take large-scale actions.