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

2??????

3?????95?

4???????sn

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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