Report: APP CMHS Project 1

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3.8.5. Civil Engineering

Many rock cutting machines have been used in both coal and hard rock mining. Some coal mines have used rock cutting equipment such as road headers for developing work in rock strata such as overcast. There is an application to those countries and mines like China that do develop roadways in rock strata.

The other civil engineering technology that is appealing to coal miners is that of Tunnel Boring Machines (TBM) (Figure 91). These may well provide superior roadway integrity (through the self-supporting nature of circular tunnels) but may also be applicable in the situation of gas drainage galleries driven above longwall goafs, potentially in stone.

Figure 91 Tunnel Boring Machine – Robbins

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