由于非(fei)開(kai)挖的(de)優勢逐漸被人們認同(tong)，非(fei)開(kai)挖技術日趨成熟，非(fei)開(kai)挖施(shi)(shi)工(gong)(gong)(gong)成本逐年(nian)降(jiang)低，所以(yi)非(fei)開(kai)挖的(de)應用在逐年(nian)增長。頂(ding)(ding)管施(shi)(shi)工(gong)(gong)(gong)突出的(de)特點就是適應性問題。針對不同(tong)的(de)地質(zhi)情況(kuang)、施(shi)(shi)工(gong)(gong)(gong)條(tiao)件和(he)設(she)計(ji)要求(qiu)，選用與之(zhi)適應的(de)頂(ding)(ding)管施(shi)(shi)工(gong)(gong)(gong)方(fang)式(shi)，如(ru)何正確地選擇頂(ding)(ding)管機和(he)配套輔(fu)助設(she)備，對于頂(ding)(ding)管施(shi)(shi)工(gong)(gong)(gong)來說將(jiang)是非(fei)常(chang)關鍵的(de)。在有(you)些工(gong)(gong)(gong)程中(zhong)非(fei)開(kai)挖具有(you)比(bi)較(jiao)優勢非(fei)開(kai)挖施(shi)(shi)工(gong)(gong)(gong)隨深(shen)度增加(jia)時成本增加(jia)不是太(tai)多，而且還(huan)可以(yi)按短的(de)合(he)理路(lu)徑穿越河流、湖泊(bo)、鐵(tie)路(lu)、公路(lu)、城市建(jian)筑物等，頂(ding)(ding)管非(fei)開(kai)挖施(shi)(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)程，施(shi)(shi)工(gong)(gong)(gong)，節(jie)約材料消耗，降(jiang)低施(shi)(shi)工(gong)(gong)(gong)費用，所以(yi)在某些工(gong)(gong)(gong)程中(zhong)非(fei)開(kai)挖具有(you)比(bi)較(jiao)優勢。

它的(de)(de)技術要點在(zai)于(yu)(yu)糾(jiu)正(zheng)管(guan)(guan)(guan)(guan)子在(zai)地下(xia)延伸的(de)(de)偏(pian)差(cha)。特別適用于(yu)(yu)大中型(xing)管(guan)(guan)(guan)(guan)徑的(de)(de)非開挖鋪設(she)(she)。具(ju)(ju)有經濟(ji)、，保(bao)護環境的(de)(de)綜合功能。一節(jie)管(guan)(guan)(guan)(guan)子完成頂(ding)入土層之(zhi)后(hou)，再(zai)下(xia)第二(er)節(jie)管(guan)(guan)(guan)(guan)子繼續(xu)頂(ding)進(jin)。其原(yuan)理是(shi)借助(zhu)于(yu)(yu)主頂(ding)油缸及管(guan)(guan)(guan)(guan)道間(jian)、中繼間(jian)等推力，把工具(ju)(ju)管(guan)(guan)(guan)(guan)或掘(jue)進(jin)機從工作坑(keng)(keng)內穿(chuan)過土層一直推進(jin)到接收坑(keng)(keng)內吊起。管(guan)(guan)(guan)(guan)道緊隨(sui)工具(ju)(ju)管(guan)(guan)(guan)(guan)或掘(jue)進(jin)機后(hou)，埋(mai)設(she)(she)在(zai)兩坑(keng)(keng)之(zhi)間(jian)。地下(xia)管(guan)(guan)(guan)(guan)線是(shi)城(cheng)市基礎設(she)(she)施的(de)(de)重(zhong)要組成部(bu)分(fen)，電纜管(guan)(guan)(guan)(guan)、上下(xia)水(shui)管(guan)(guan)(guan)(guan)網、熱(re)力(動力)管(guan)(guan)(guan)(guan)道同(tong)地下(xia)鐵道一起，被稱為(wei)城(cheng)市的(de)(de)生命線，隨(sui)著社會的(de)(de)發展(zhan)，地下(xia)管(guan)(guan)(guan)(guan)線的(de)(de)長度持續(xu)增(zeng)加(jia)。

非開挖工程穿越河流、湖泊、重要交通干線(xian)、重要建(jian)筑物，實現對(dui)諸如供水、煤氣、、污水、電信電纜等公用(yong)(yong)(yong)管(guan)線(xian)的(de)檢測、鋪設、修復與更(geng)換的(de)施工技(ji)術。相(xiang)比鋼(gang)頂管(guan)，鋼(gang)筋混(hun)凝(ning)土(tu)頂管(guan)次(ci)要采用(yong)(yong)(yong)柔性接(jie)頭，其更(geng)具靈活性，兩(liang)個相(xiang)近管(guan)道之(zhi)間存有一定角度(du)，因而，在糾(jiu)正偏向方面更(geng)靈敏，效果(guo)更(geng)好。此外，由于兩(liang)管(guan)道之(zhi)間存在一定角度(du)，針(zhen)對(dui)這(zhe)一特征，可(ke)(ke)以(yi)(yi)到達(da)曲線(xian)頂進目的(de)。由于地質強(qiang)度(du)不同，需選用(yong)(yong)(yong)不同的(de)機頭。強(qiang)度(du)大巖(yan)層，需選用(yong)(yong)(yong)具有破巖(yan)機頭；普通土(tu)質，可(ke)(ke)以(yi)(yi)選用(yong)(yong)(yong)泥水均衡頂管(guan)機械進行施工即(ji)可(ke)(ke)。