Sedimentation tanks (pools) are an important equipment needed in subway and tunnel constructions. Tunnel Boring Machine (TBM), known as "giant mole", excavates soil or rock layers with circular movements. With the diameter of 1 meter to 20 meters of these machines, which have the ability to drill into all kinds of materials such as hard rocks and sands, soil heaps or mud can be removed from large masses from large areas.
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