Demolition method of three-stage long arm of excavator
The long arm of the excavator has two sections and three sections respectively. The long arm of the two-section excavator is mainly suitable for the excavation of the earth and stone foundation and deep cut, and the river dredging; The three-stage excavator elongated arm is mainly suitable for the disassembly of high-rise buildings and other projects.
How do excavators demolish buildings on the roof?
There are many cases of excavator construction to the roof, but every time it will cause people's curiosity. Makes you wonder how on earth did they get up there? Tear it down and reassemble it on the roof? The plane lifted it up? Internet users have made a lot of strange speculation. In fact, there are many ways to climb the roof of the excavator. Today, Xiaobian will popularize it for you:
1, from the demolition site after the building pile of ruins on their own climb up
2. Climb the artificial spiral staircase to the top of the building
3, with a large crane or coil press to lift up
How do excavators work on the roof?
After the excavator goes upstairs, the overall track should be maintained on the load-bearing beam to avoid direct pressure on the roof, and the excavator chassis can be removed by using the advantage that it can rotate 360 degrees. In general mining opportunities each equipped with two other auxiliary workers do, roof construction, forcible entry excavator driver hammer drill oil first open the roof panel, do auxiliary workers to use gas cutting machine cutting the steel part of the oil hammer cannot process, finally excavator bucket, namely machine friends often say "dig", will be broken down after brick and stone processing. The brick and stone dug out by the excavator will generally be directly thrown into the elevator shaft, which is more convenient.
Precautions for excavator roof work
1. The prerequisite for this kind of construction is to confirm that the building can bear the weight of the excavator through careful design and careful construction load checking.
2, the safest way is to take the mobile crane to lift up, large mobile crane can lift 1200 tons, so the excavator to lift the roof, there is no big problem, but also relatively safe.