頂(ding)(ding)管施(shi)工(gong)(gong)(gong)(gong)就是非開挖(wa)(wa)施(shi)工(gong)(gong)(gong)(gong)方法，是一(yi)種不開挖(wa)(wa)或(huo)(huo)者(zhe)少開挖(wa)(wa)的管道(dao)埋設施(shi)工(gong)(gong)(gong)(gong)技(ji)術(shu)。頂(ding)(ding)管法施(shi)工(gong)(gong)(gong)(gong)就是在工(gong)(gong)(gong)(gong)作坑(keng)內(nei)(nei)借助(zhu)于頂(ding)(ding)進設備產生的頂(ding)(ding)力(li)，克(ke)服管道(dao)與周圍(wei)土(tu)壤的摩擦力(li)，將管道(dao)按設計的坡度(du)頂(ding)(ding)入(ru)土(tu)中，并將土(tu)方運(yun)走。一(yi)節管子(zi)完成頂(ding)(ding)入(ru)土(tu)層(ceng)之后(hou)，再下(xia)第二節管子(zi)繼續頂(ding)(ding)進。其(qi)原(yuan)理是借助(zhu)于主頂(ding)(ding)油缸(gang)及管道(dao)間(jian)(jian)、中繼間(jian)(jian)等推力(li)，把工(gong)(gong)(gong)(gong)具管或(huo)(huo)掘進機從工(gong)(gong)(gong)(gong)作坑(keng)內(nei)(nei)穿過土(tu)層(ceng)一(yi)直(zhi)推進到接收坑(keng)內(nei)(nei)吊起。管道(dao)緊隨工(gong)(gong)(gong)(gong)具管或(huo)(huo)掘進機后(hou)，埋設在兩坑(keng)之間(jian)(jian)。