非(fei)開挖技術是極為重要(yao)的一(yi)種都市鋪設管道(dao)(dao)的施(shi)(shi)工(gong)(gong)(gong)手(shou)段(duan)，采用(yong)(yong)非(fei)開挖技術鋪設管道(dao)(dao)具有若干(gan)得天獨(du)厚的優(you)勢。頂(ding)(ding)管機通常用(yong)(yong)于小直徑斷(duan)面(mian)巖(yan)石和土(tu)體掘進(jin)(jin)(jin)，其中(zhong)心就是將一(yi)些本來集成(cheng)在盾構機外部(bu)的功用(yong)(yong)部(bu)件拿出來，以(yi)(yi)減少其尺寸(cun)，頂(ding)(ding)推安裝(zhuang)在任務井里。頂(ding)(ding)進(jin)(jin)(jin)施(shi)(shi)工(gong)(gong)(gong)進(jin)(jin)(jin)程中(zhong)應嚴厲留(liu)意以(yi)(yi)下內(nei)容：頂(ding)(ding)進(jin)(jin)(jin)時，頂(ding)(ding)鐵上(shang)不準站(zhan)人；頂(ding)(ding)進(jin)(jin)(jin)就位后(hou)，應立即回復施(shi)(shi)工(gong)(gong)(gong)線(xian)路(lu)；頂(ding)(ding)進(jin)(jin)(jin)施(shi)(shi)工(gong)(gong)(gong)完成(cheng)后(hou)，施(shi)(shi)工(gong)(gong)(gong)人員必需對管道(dao)(dao)線(xian)路(lu)停(ting)止(zhi)片面(mian)修整與穩固，并停(ting)止(zhi)相關實驗(yan)。

頂(ding)(ding)(ding)管(guan)施工過程中或施工后，在管(guan)道(dao)(dao)軸線(xian)兩側一(yi)定(ding)范圍(wei)(wei)內(nei)發面(mian)沉降(jiang)或隆起，使管(guan)道(dao)(dao)周(zhou)圍(wei)(wei)建(jian)筑物和(he)道(dao)(dao)路交通及管(guan)道(dao)(dao)等(deng)公用(yong)設施受到(dao)(dao)影響，甚至危(wei)及到(dao)(dao)正(zheng)常(chang)使用(yong)和(he)安全。初始頂(ding)(ding)(ding)進(jin)每1m測(ce)量(liang)一(yi)次(ci)，并做記錄(lu)。正(zheng)常(chang)頂(ding)(ding)(ding)進(jin)時，管(guan)道(dao)(dao)非開(kai)挖施工多少錢，每頂(ding)(ding)(ding)進(jin)3m測(ce)量(liang)一(yi)次(ci)，遇有糾偏(pian)每1m測(ce)量(liang)一(yi)次(ci)，測(ce)量(liang)時要注意照(zhao)射到(dao)(dao)機頭激光(guang)靶(ba)上的激光(guang)點和(he)管(guan)道(dao)(dao)中心軸線(xian)的一(yi)致性。頂(ding)(ding)(ding)管(guan)掘(jue)進(jin)機前方遇到(dao)(dao)障礙(ai)；后背墻變形嚴重(zhong)；頂(ding)(ding)(ding)鐵(tie)發生扭(niu)曲(qu)現象(xiang)；管(guan)位偏(pian)差過大且校正(zheng)無效(xiao)；頂(ding)(ding)(ding)力超過管(guan)端的允(yun)許頂(ding)(ding)(ding)力；油(you)泵、油(you)路發生異常(chang)現象(xiang)；接縫中漏泥漿。

它的(de)(de)(de)(de)技術(shu)要點在(zai)于(yu)糾正管(guan)(guan)子在(zai)地下延伸的(de)(de)(de)(de)偏差(cha)。特別適用于(yu)大中型管(guan)(guan)徑的(de)(de)(de)(de)非開(kai)挖鋪設。具有經(jing)濟(ji)、，保(bao)(bao)護環境(jing)的(de)(de)(de)(de)綜合(he)功能。它能穿越公路(lu)、鐵(tie)路(lu)、橋梁、高山(shan)、河流、海(hai)峽和地面任何建筑(zhu)物。采用該技術(shu)施工，能節約一(yi)大筆(bi)拆費(fei)用、減少(shao)對環境(jing)污染和道路(lu)的(de)(de)(de)(de)堵塞，具有顯著(zhu)的(de)(de)(de)(de)經(jing)濟(ji)效(xiao)益和社會效(xiao)益。頂管(guan)(guan)機(ji)(ji)是一(yi)種使(shi)用油(you)介(jie)質的(de)(de)(de)(de)，所(suo)以需要做好油(you)和機(ji)(ji)器(qi)(qi)的(de)(de)(de)(de)保(bao)(bao)養(yang)的(de)(de)(de)(de)工作，防(fang)止出(chu)現堵塞或者是漏油(you)的(de)(de)(de)(de)現象。在(zai)應用頂管(guan)(guan)機(ji)(ji)的(de)(de)(de)(de)時候，施工人員要做好隨時觀察(cha)的(de)(de)(de)(de)工作，確(que)認(ren)機(ji)(ji)器(qi)(qi)正常運轉，防(fang)止頂管(guan)(guan)機(ji)(ji)出(chu)現故(gu)障。