People who often ride on trains are impressed by the sleepers. They are laid neatly in long strips and look solid. When you came down the mine and saw the sleepers there in the aisle, maybe you had to take a nap: why is it two sizes smaller? Short head, short. It's inevitable that the first one to see you will mutter, is this not a simple edition of cheating on workmanship?
Not really. This dimension is measured, not saved. Sleepers shall be laid under two rails, and the length shall follow the gauge. If the two rails of the main line on the ground are far apart, the sleepers shall be long, and the two ends shall be stretched out to be stable. Underground, the car is much smaller than the train skin, the track is narrow, and the roadway section is closed. The equipment and working hours are changed for every one meter of roadway into the mountain. The section can be saved and the account is better. The whole system is matched according to the size of the roadway, and the sleeper is one of the rings, which is one size smaller.
People who have been there know Jin Gui. There are rock walls on both sides. When passing through the ore car in the middle, people have to walk close to each other, and the air duct cable has to be hung along the wall. The mine car cannot be pulled much at one time, and cannot stand for several times. It comes and goes back and forth without stop. Two people who walk opposite each other sometimes have to side up. If the sleeper is like the brother on the ground, it can be stretched for a long distance. Both sides of the track are occupied by it. When the mine car passes by, where do people hide? Therefore, it is a bit shorter and narrower. It is just right to stand on the frame. People passing by the car will walk on the material code, and each has its own way.
It's the same way as a cupboard in the aisle. The aisle is one meter wide. If you drive a one-meter and two-meter cabinet, it is not true, but it is heart blocking. The cabinet should be made according to the aisle. It should be done smoothly. No one praises you, but no one says you steal work. Sleepers are of this principle. The size is the problem of roadway. The factory answers the question.
Small head, will it fool the inside? It's really nothing. When picking materials, pine is pine and grain is grain. Short sleepers and long sleepers enter the same field without leaving the back door. The old style in the factory is easy to get through if the material is not solid. There are many days to dry, the order of entering the tank is the same, the hot oil in the tank is enough, and the oil flows along the fiber. The length of sleepers shall be measured with the same ruler. The tank has to be spread out and left standing, and the oil is allowed to go after being collected stably. The short sleepers did not cross a short path down this line.
Factory acceptance is also true. When immersed in oil, it doesn't matter whether it is black or not. It's called looking at the face. Take one out and saw off the waist. The section swings in front of you. The oil color is clear and clear. Short sleepers have no privileges in this matter, the saw saw. Some may have been heartache for the sawn brother, but in fact, it is not necessary, it is not a sacrificial, a section, for the whole batch of sleepers. Such visible explanation is better than any publicity.
Say the days down the hole. The place was damp and poorly ventilated, and the wood was poor and rough. The work on the ground is very sharp. The underground is different. The roadway is so wide that everything has to be bent. It is not easy to lay a sleeper, and large machinery cannot get in. People squat on it a little, and no one wants to make a second pass. The mine car is full and running back and forth, the components are all on the rail, and the rail is handed down to the sleeper, one by one, no one can replace. I cannot see the difference in the first month after being immersed in the oil. I know the height after a long time.
Qingdao Tiehan Oil-immersed Sleepers, ground specifications, underground specifications. The length of cut is calculated according to the roadway and the immersion depth is calculated according to the standard. Some people ask, how many years can a piece of wood stand under the tide of the well bottom? It depends on how well the oil is immersed, and the wood immersed in place is more patient than you think. As for the shorter one, on the good side, it was the day of changing sleepers when the underground brothers lifted up without much waist loss.
