These subways can't be separated from the big ones"  

Today, China is the capital of Beijing or other cities, subway construction is in full swing in the construction, then such a huge project is inseparable from the construction machinery and equipment. Today Xiaobian for everyone to say that on the construction of subway that said this several "big mac".

1. shield machine

Shield machine is a special construction machine for tunneling. Its full name is called shield tunnel boring machine. Beijing Metro Line 6 is the first show of the 31 shield machine, which perfectly created the latest record of the first shield machine downtime in domestic manufacturers.

2. crawler crane

The crane has the advantages of strong lifting capacity, small earth pressure, small turning radius, large climbing capacity, no outrigger, running with load, good operation stability, and free replacement of the truss combination height. December 2010, Beijing Metro Line 10 Changchun bridge station. 31 shield special crawler crane adopts 19.5m main arm and 7m heavy fixed auxiliary arm, hoisting 90t heavy shield machine.

3. Metro boring machine

Roadheader is a machine for cutting straight underground tunnel.

4, rotary drilling rig

Rotary drilling rig is a kind of construction machine which is suitable for drilling operation in building foundation engineering. Granite is the main stratum under the Xiamen island. The rock compressive strength is generally above 100MPa, the highest is 190MPa, and the rock entry ability of the pile foundation construction equipment is very high. And the excellent performance of SR360 31 produced by the rotary drilling rig is widely used in the construction of Xiamen metro, opening a door.

5. truck crane

The truck crane is a crane mounted on a common automobile chassis or a special automobile chassis. Its driving cab is separated from the hoisting control room. The advantages of this crane are good mobility and rapid transfer. The disadvantage is that the work must be leg, can not load, nor suitable for soft or muddy site work. In June 2009, SCC1500C truck crane took part in the two phase project of Hongkong central subway.

6. concrete pump truck

The concrete is transported continuously along the pipeline by the pressure, and the concrete is conveyed to a certain height and distance by using the distributing rod and the conveying pipe on the pump truck. November 2001 -12 months, Shanghai Metro pearl line two phase of the project two units at the same time the use of 3 sets of Sany SY5290THB-37 pump truck concrete, pumping concrete 28000 cubic meters. In the pumping process, the 31 pump truck does not appear any fault, pumping easy, fast, obtained the construction unit's praise.

7. excavator

Excavating the material above or below the bearing surface with a bucket and loading it into the transport vehicle or unloading the earthmoving machine。

    Did you see? Under the infinite wisdom of human beings, these "giant" conscientiously fulfill their mission, and build our beautiful homeland.