华体会国际 利用超长型动臂和超长型斗杆，可在疏浚、护岸、坡面以及地铁建设等受地面环境限制的工况下发挥巨大的威力。当前全国各地纷纷上马地铁建设，为保护环境而进行的河道疏浚治污等工程也是遍地开花，因此华体会国际 的市场需求很大。为此我公司制做的挖掘机加长臂，将在这个生机勃勃的细分市场占据自己独特的一席之地。

The extended arm excavator utilizes an ultra long boom and an ultra long bucket, which can exert tremendous power in conditions limited by ground conditions such as dredging, revetment, slopes, and subway construction. Currently, subway construction is being carried out in various parts of the country, and projects such as river dredging and pollution control are also flourishing to protect the environment. Therefore, there is a great market demand for extended arm excavators. For this reason, our company's excavator with extended arms will occupy a unique position in this vibrant niche market.

一、挖掘机加长臂的使用范围

1、 Scope of use of excavator extended arm

挖掘机加长臂有两段式挖掘机加长臂和三段式挖掘机加长臂，两段式挖掘机加长臂主要适用于土石方基础和深堑挖掘作业，河道清淤；三段式挖掘机加长臂主要适用于高层建筑的拆卸等工程。根据杠杆原理和力学原理，挖掘机加长臂的受力比原来减少，应该尽量不要去重作业的场合施工。

There are two types of excavator extension arms: two-stage excavator extension arms and three-stage excavator extension arms. The two-stage excavator extension arms are mainly suitable for earthwork foundations and deep excavation operations, as well as river dredging; The three-stage excavator with extended arm is mainly suitable for dismantling and other engineering projects of high-rise buildings. According to the principles of leverage and mechanics, the force on the extended arm of an excavator is reduced compared to before, and construction should be avoided in heavy work environments as much as possible.

二、三段式挖掘机加长臂如何拆楼？

2、 How to demolish a building with a three-stage excavator and an extended arm?

主要还是看楼房高低而定，举个例子，拆5层楼房：

It mainly depends on the height of the building. For example, demolishing a 5-story building:

必须先运来一些泥或工业垃圾垫底，使挖掘机升直冲击锤可以够得到楼顶。

Some mud or industrial waste must be transported to the bottom first, so that the excavator can lift the impact hammer and reach the roof.

待挖掘机开上填充物后先使其稳定，并且留有足够的转向空间。

After the excavator is loaded with filling material, stabilize it and leave enough turning space.

用冲击锤垂直墙面向里打墙(距顶1米左右)，把墙打开一个洞，碎料往里推，不要让它掉下来砸到自己。

Use an impact hammer to hit the wall vertically inward (about 1 meter away from the top), open a hole in the wall, and push the debris inward to prevent it from falling and hitting oneself.

把洞扩大，先不要动梁和柱子。把砖墙打开后就打柱子，这样上面的梁支持不住也会往里面掉，保证自己的。按这样的顺序从上到下，往里推进。

Expand the hole without moving the beams and columns for now. After opening the brick wall, hit the pillars so that the beams above cannot support it and will fall inside, ensuring one's own safety. Push in from top to bottom in this order.