The little Editor takes you deep into the "drilled dragon"    

What is "drilling earthworm"? The shield machine is also. Let us first understand the history of the development of the shield.

In 1806, Mark Brunol, a French engineer, found that there was a borer in the board of the ship drilled out of the channel and painted its liquid on the hole wall. Under the inspiration of borers, brucor discovered the principles of the shield tunneling and registered patents. In 1825, he first built the first shield tunnel under a rectangular shield under the Thames River in London. Since then, the industry is accustomed to the shield machine known as the drill ground dragon.

At the site of the 21 meter deep underground shield site in Shanghai, the heat emitted by various machines makes it much higher here than the ground. It's always summer here.

The shield machine is 78 meters long and integrates light, machine, liquid, electricity, sensing, information and so on. It has a high degree of automation. The cutter head rotation strength can reach 5500 kn / m, about 35 thousand vehicles 1.6 liters car exhaust power; jack of the shield machine can promote the more than 3300 tons of heavy objects, the equivalent of 660 ordinary adult elephant head weight.

The "drilled dragon" will not get lost in the dark, because it has a "thousand li eye". How to ensure the safety of the about 50000000 shield equipment is not possible, and monitoring is the key to the "escort" shield machine. To this end, the engineering team invested 40 yuan to set up a remote monitoring system to enhance the informatization and technology construction capacity. At present, there are only 2 subway construction units in Shanghai equipped with this set of equipment and technologies. Whether in a few kilometers of project monitoring rooms or Orbital Corporation offices thousands of miles away, as long as the computer is turned into the Teamviewer system, the real-time monitoring of the shield machine can be achieved.

Similar to "intelligent robot", there is a remote monitoring system, and the staff will be able to know the working condition of the shield machine.