Constant Resistance and Yielding Support Technology for Large Deformations of Surrounding Rocks in the Minxian Tunnel

Figure 12

Field construction pictures of the new support technology. (a) Outfit of CRLD cable system. (b) Finished CRLD anchor cables. (c) I20 steel frames. (d) Sprayed concrete with a thickness of 26 cm.

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(b)

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(d)