Spherical Hobs---A New Cutter Holder for A Hydromill

A "spherical hobs hydromill" refers to a type of hydromill (slurry wall cutter) that utilizes spherical cutting tools (hobs) for excavation. Hydromills are specialized machines used for constructing diaphragm walls in deep foundation projects, particularly in hard ground conditions.

Here's a breakdown:

Hydromill:

A hydromill is a type of trench cutter that uses a slurry-supported excavation method to create deep, vertical trenches.

Diaphragm Wall:

A diaphragm wall is a type of retaining wall constructed in the ground using this trenching method.

Spherical Hobs:

These are the cutting tools on the hydromill. They are spherical or ball-shaped and are designed to break up and remove hard materials.

Function:

The spherical hobs, attached to the hydromill's cutter head, rotate and grind against the soil or rock, creating a trench as the machine is lowered into the ground. The slurry (a specially prepared mud) supports the trench walls during excavation.

In essence, a spherical hobs hydromill is a sophisticated piece of machinery designed for efficient and precise excavation of diaphragm walls in challenging ground conditions, with the spherical cutting tools playing a crucial role in its operation.