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Shaft Sinking Machines 购买在 新加坡 (首都)
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Shaft Sinking Machines

Shaft Sinking Machines

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新加坡, 新加坡 (首都)
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An innovative development from Herrenknecht for the sinking of all types of shafts is the VSM (Vertical Shaft Sinking Machine). It consists mainly of a sinking unit and shaft boring machine and can be used in stable and unstable soils. Because sinking groundwater shafts is so costly, a machine concept has been developed that will also work under water and so cut costs.

The shaft drilling machine is sunk using a sinking unit - this constitutes the link between the top of the shaft and the machine / start pipe - and then braced with gripper arms, rather like a TBM, against the solid rock or against the start pipe that is already in place. The cutting process works in a similar fashion to that of a partial face excavation machine. The rotary grinder, which is fitted with special tools, is located on the telescoping road header boom and loosens the geology by making swinging movements at the shaft bottom.

The excavated material is removed either through a preexisting fore-bore hole or hydraulically through pipelines up to the separation plant on the surface. During the whole shaft sinking operation, the shaft drilling machine has steel ropes attaching it to the sinking unit which is located on the surface above. This means that the shaft drilling machine can be under constant surveillance as it is sunk precisely to its destination. A variety of different shaft lining options are available, depending on the ambient geology.

The control and supply units are set up on a separate level or remain on the surface above. As well as the electrical and hydraulic power supplies, all the information needed for tunnelling is collected and monitored. This means that the machine operator is always able to check the technical parameters of the shaft drilling machine while it is being sunk and can change them if necessary so as to adapt the shaft drilling machine to the ambient conditions and make optimum machine settings.

The completed shaft can be used, for example, as a launch shaft for Microtunnelling or as an access shaft for existing caverns.

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