Shield driver: driving a luxury car in the depth of the tunnel is both hard and happy 

They are in the tens of meters deep underground, through the button, keyboard, mouse, screen control of shield machine in underground excavation, collection, excavation parameters under different geologic conditions of slurry circulation mode, revised P6 schedule, ensure the best performance of shield machine to complete the task for the future pipeline crossing, the same environment the tunnel crossing building process assets.

Guo Qixian's car is very clear, the price of 50 million yuan. This "luxury car", in the past 10 years, he has opened 4; Guo Qixian's work is very special, once boarded "luxury car", regardless of day and night, you have to open 12 hours, eating and drinking, lying in the underground".

Guo Qixian, the shield driver of the pipeline bureau, his "luxury car" - slurry balance shield machine, is the most advanced tunnel boring equipment in the world today. It is a tool to get through the underground tunnel and pull the oil and gas pipeline smoothly through a variety of complex strata. With it, a lot of impossible passes have become reality.

"50 million yuan to really find out about it! The" temper ", play the potential of it, we must realize the" human unity ", let mechanical equipment and labor cooperation to achieve seamless." Guo Qixian said.

Guo Qixian carefully analyzes the shield machine pipeline, electrical circuit and operation panel, studies electrical, hydraulic and mechanical drawings, gradually familiar with the shield, pipe jacking construction process, troubleshooting and operation essentials. All the projects on the project should be studied carefully several times, and the colleagues and the workers will be asked not to understand them until they are fully understood.

Learning skills is useful." Guo Qixian told a story to reporters. In the North West shield project of the west to east gas pipeline, the complex and bad geological environment in the Pearl River Delta makes the shield machine obviously "acclimatized"". The shield machine has completed the process of argillaceous sandstone, sand layer, pebble layer and clay layer. Alternating soft and hard strata makes Guo Qixian headache. He combined with other technical backbone construction features, the shield machine "localization" transformation. The reformed shield machine has the ability to overcome the complicated geological conditions and runs a lot faster.

In the face of complex instruments, piping, Guo Qixian with those flashing button function. This equipment has the characteristics of high difficulty, high risk, high technical content and so on. It can pass through a variety of complex strata, and has other incomparable reliability and safety. He said: "the instrument is very complex, different buttons correspond to the situation is not the same, not only eye to hand, but also to heart, will not be a problem. We must monitor the direction of the shield machine at any time, adjust the tunneling attitude of the equipment, even if a few millimeters of deviation can not occur."

As the pipeline four companies (through the company) driver shield shield project, in 12 hours of class work, Guo Qixian and Lazarus to underground, there is no concept of day and night. "It's nothing. It's easier to overcome natural conditions than work." Guo Qixian is optimistic.

According to the work, he produced the shield machine in running water pressure, earth pressure, speed and position of dozens of data changes continuously according to the prompt instructions, to ensure that this huge monster shield machine in the river to the receiving mining wells, the direction of deviation shall not exceed 100 mm.

After 1 meters ahead of the shield machine, Guo Qixian will drill into the tail of the shield to assemble the hand and install the segment. In the huge rotating mechanical arm, 6 long 1 meters, 0.25 meters thick reinforced concrete segments, like "inlaid tiles" into a diameter of 2.44 meters of the tunnel.

10 years, he completed more than ten thousand meters of tunnel crossing mission, sometimes in the underground thirty or forty meters, sometimes sixty or seventy meters. As long as my "luxury car" is in, I can use technology to make oil and gas pipelines cross the ground safely......" With that in mind, Guo Qixian is full of confidence.