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Melika
@melikafrj
Tunnel building,TBM segment
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Alys
@alys11
Support System: This system includes materials and equipment that are used to strengthen the walls of the tunnel and prevent the ground from collapsing during digging. These materials can include shotcrete, reinforcement cans, and other equipment.
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Melika
@melikafrj
A tunnel boring machine (TBM ) is a machine used to excavate tunnels. Tunnels are excavated through hard rock, wet or dry soil, or sand, each of which requires specialized technology.
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