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????????????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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