????:1??????:??????

2????????

3???????

4?????????

5??????????

??12?????????????????????2?????????????? (?? ?????????)2???????????,???????????????????????“???????????”??????????????(TBM)?4?????????8?????,?TBM???????,?????????????TBM?????????????

12????????????????2??????????,?TBM“????????????”???????

?????????????????,“???”TBM?????,??,????12.23???????????????,????160???????,??????????2800??????????????????????????????????????????????,????????,?,?,??20%?40%?

?????12??2??,????????3.3?,??14.9????????????????????,10?TBM???4?????????????,?2??????

????,????“??????????????”,??????????????????????,??????????????????,??????????????????????,??(?????????)

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