頂(ding)(ding)(ding)管(guan)施(shi)(shi)工(gong)(gong)(gong)就是非開(kai)挖(wa)施(shi)(shi)工(gong)(gong)(gong)方法，是一(yi)(yi)(yi)種不開(kai)挖(wa)或者少開(kai)挖(wa)的(de)(de)管(guan)道(dao)埋設施(shi)(shi)工(gong)(gong)(gong)技術。頂(ding)(ding)(ding)管(guan)法施(shi)(shi)工(gong)(gong)(gong)就是在工(gong)(gong)(gong)作(zuo)坑內借(jie)助于頂(ding)(ding)(ding)進(jin)設備產生(sheng)的(de)(de)頂(ding)(ding)(ding)力，克服管(guan)道(dao)與周圍土(tu)壤的(de)(de)摩(mo)擦力，將(jiang)管(guan)道(dao)按設計的(de)(de)坡度頂(ding)(ding)(ding)入土(tu)中，并(bing)將(jiang)土(tu)方運(yun)走。一(yi)(yi)(yi)節管(guan)子(zi)完成頂(ding)(ding)(ding)入土(tu)層(ceng)之(zhi)后，再下第二(er)節管(guan)子(zi)繼續頂(ding)(ding)(ding)進(jin)。其原(yuan)理(li)是借(jie)助于主頂(ding)(ding)(ding)油缸及管(guan)道(dao)間(jian)、中繼間(jian)等推力，把工(gong)(gong)(gong)具管(guan)或掘(jue)進(jin)機從工(gong)(gong)(gong)作(zuo)坑內穿(chuan)過土(tu)層(ceng)一(yi)(yi)(yi)直(zhi)推進(jin)到接收坑內吊起。管(guan)道(dao)緊隨工(gong)(gong)(gong)具管(guan)或掘(jue)進(jin)機后，埋設在兩(liang)坑之(zhi)間(jian)。