它(ta)的(de)技術(shu)要點在(zai)于糾正管(guan)子在(zai)地下延伸的(de)偏(pian)差。特別適用于大中(zhong)型(xing)管(guan)徑(jing)的(de)非開挖鋪設。具(ju)有經濟、，保(bao)護(hu)環(huan)(huan)境的(de)綜合功(gong)能。通過工(gong)作井(jing)(jing)把要頂(ding)進的(de)管(guan)子頂(ding)入接收井(jing)(jing)內，一(yi)個(ge)工(gong)作井(jing)(jing)內的(de)管(guan)子可在(zai)地下穿(chuan)行1500米以(yi)上，并且還能曲線穿(chuan)行，以(yi)繞開一(yi)些(xie)地下管(guan)線或障礙(ai)物。挖掘(jue)發生在(zai)頂(ding)管(guan)機的(de)前方(fang)，被(bei)挖掘(jue)物質通過泥漿(jiang)循環(huan)(huan)系統用泵排出，到達地表。頂(ding)管(guan)施工(gong)的(de)基本(ben)原理(li)為：從地面開挖兩個(ge)基坑井(jing)(jing)，然后管(guan)節從工(gong)作井(jing)(jing)安放。

采用通風(feng)裝置(zhi)予以(yi)(yi)解(jie)(jie)決。前探查地(di)下管線(xian)盡管的(de)頂(ding)管設(she)備具有在(zai)施工(gong)(gong)時(shi)探查前進路線(xian)不遠距離管線(xian)的(de)能力，確保公眾正常生活仍有必要(yao)。開端(duan)啟動(dong)(dong)機械，將(jiang)水(shui)送入(ru)土(tu)(tu)層(ceng)，同(tong)時(shi)轉動(dong)(dong)機頭(tou)(tou)，將(jiang)土(tu)(tu)變成泥(ni)(ni)漿，抽出(chu)排出(chu)泥(ni)(ni)漿，機頭(tou)(tou)后方呈現空泛，啟動(dong)(dong)千斤頂(ding)將(jiang)管道和機頭(tou)(tou)一同(tong)頂(ding)入(ru)土(tu)(tu)層(ceng)。如此循(xun)環(huan)，非(fei)開挖(wa)施工(gong)(gong)工(gong)(gong)程報價，將(jiang)機頭(tou)(tou)頂(ding)至(zhi)承受井，打鑿(zao)后，吊出(chu)機頭(tou)(tou)就(jiu)完成一段機械頂(ding)管。有毒體(ti)的(de)檢測與(yu)防護頂(ding)管施工(gong)(gong)的(de)地(di)層(ceng)一般(ban)會通過(guo)淤泥(ni)(ni)層(ceng)，腐爛動(dong)(dong)、植物體(ti)會在(zai)地(di)下形成有毒體(ti)聚(ju)集體(ti)，危(wei)害施工(gong)(gong)人(ren)員(yuan)的(de)健康和生命，所以(yi)(yi)有人(ren)員(yuan)在(zai)頂(ding)管內(nei)(nei)操作的(de)情況下，需(xu)要(yao)定時(shi)監(jian)測管內(nei)(nei)有毒體(ti)含量，采用通風(feng)裝置(zhi)予以(yi)(yi)解(jie)(jie)決。

頂(ding)(ding)管(guan)(guan)施工(gong)(gong)在管(guan)(guan)道(dao)頂(ding)(ding)進(jin)的(de)(de)全部過(guo)程中(zhong)，應控制頂(ding)(ding)管(guan)(guan)掘(jue)進(jin)機(ji)前進(jin)的(de)(de)方(fang)向(xiang)，并應根據測量結果分析偏(pian)差產生的(de)(de)原因和發(fa)展趨勢，確定糾偏(pian)的(de)(de)措施。挖掘(jue)發(fa)生在頂(ding)(ding)管(guan)(guan)機(ji)的(de)(de)前方(fang)，被(bei)挖掘(jue)物質通過(guo)泥(ni)漿循環系(xi)統用泵排出，到達地(di)表。頂(ding)(ding)管(guan)(guan)施工(gong)(gong)的(de)(de)基(ji)(ji)本原理(li)為：從地(di)面開挖兩個基(ji)(ji)坑井，然后(hou)管(guan)(guan)節從工(gong)(gong)作井安(an)放。一(yi)節管(guan)(guan)子(zi)完成頂(ding)(ding)入土(tu)層(ceng)(ceng)之(zhi)(zhi)后(hou)，再下第二節管(guan)(guan)子(zi)繼續頂(ding)(ding)進(jin)。其原理(li)是(shi)借助(zhu)于主頂(ding)(ding)油缸及管(guan)(guan)道(dao)間、中(zhong)繼間等推(tui)(tui)力，把(ba)工(gong)(gong)具管(guan)(guan)或掘(jue)進(jin)機(ji)從工(gong)(gong)作坑內穿過(guo)土(tu)層(ceng)(ceng)一(yi)直(zhi)推(tui)(tui)進(jin)到接收坑內吊起。管(guan)(guan)道(dao)緊隨工(gong)(gong)具管(guan)(guan)或掘(jue)進(jin)機(ji)后(hou)，埋設在兩坑之(zhi)(zhi)間。