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 土(tu)壓平衡式(shi)頂管是以土(tu)壓平衡為工(gong)(gong)作原(yuan)理(li)的(de)(de)一(yi)種頂管施工(gong)(gong)方法.在(zai)工(gong)(gong)作時(shi),通(tong)過大刀盤及仿形刀盤對(dui)機(ji)頭正面(mian)土(tu)體的(de)(de)全(quan)端面(mian)切(qie)削,利(li)用主…

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