頂管施(shi)(shi)(shi)工(gong)(gong)(gong)是(shi)一(yi)種在不開(kai)挖或許少開(kai)挖路面的(de)(de)狀況(kuang)下(xia)，非開(kai)挖施(shi)(shi)(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)程廠家，埋設(she)管道(dao)的(de)(de)施(shi)(shi)(shi)工(gong)(gong)(gong)技術，可(ke)管道(dao)埋設(she)施(shi)(shi)(shi)工(gong)(gong)(gong)對(dui)城市建(jian)筑(zhu)物(wu)的(de)(de)毀壞和形成(cheng)交通(tong)堵塞的(de)(de)難題，在波(bo)動土(tu)層(ceng)和環境保護方具有優勢。要想保證非開(kai)挖工(gong)(gong)(gong)程的(de)(de)質(zhi)量，施(shi)(shi)(shi)工(gong)(gong)(gong)單(dan)位應做好充足的(de)(de)準(zhun)備工(gong)(gong)(gong)作(zuo)。施(shi)(shi)(shi)工(gong)(gong)(gong)單(dan)位應對(dui)施(shi)(shi)(shi)工(gong)(gong)(gong)場(chang)所進行嚴格的(de)(de)現場(chang)勘(kan)查(cha)，包括(kuo)地(di)下(xia)土(tu)層(ceng)、管線(xian)和地(di)上的(de)(de)河流、橋梁(liang)、建(jian)筑(zhu)物(wu)、綠化環境等。穿越(yue)建(jian)筑(zhu)時對(dui)基(ji)礎(chu)的(de)(de)探查(cha)頂管在建(jian)筑(zhu)物(wu)基(ji)礎(chu)下(xia)施(shi)(shi)(shi)工(gong)(gong)(gong)時，需(xu)要明(ming)確施(shi)(shi)(shi)工(gong)(gong)(gong)施(shi)(shi)(shi)工(gong)(gong)(gong)路線(xian)上所遇到的(de)(de)基(ji)礎(chu)類型(xing)，對(dui)于部分基(ji)礎(chu)頂管頂進前(qian)可(ke)采(cai)取托換(huan)、加固(gu)措施(shi)(shi)(shi)。

由于非(fei)(fei)開挖(wa)的(de)(de)優勢逐漸(jian)被人們認同，非(fei)(fei)開挖(wa)技術日趨成熟，非(fei)(fei)開挖(wa)施(shi)工成本(ben)(ben)逐年降低，所(suo)以非(fei)(fei)開挖(wa)的(de)(de)應(ying)用(yong)在逐年增長。頂(ding)(ding)管施(shi)工突出的(de)(de)特點就是(shi)(shi)適(shi)應(ying)性問題。針對不同的(de)(de)地(di)質情況、施(shi)工條(tiao)件和設計要求，選用(yong)與之適(shi)應(ying)的(de)(de)頂(ding)(ding)管施(shi)工方式，如何正確地(di)選擇頂(ding)(ding)管機(ji)和配(pei)套輔(fu)助設備，對于頂(ding)(ding)管施(shi)工來說(shuo)將是(shi)(shi)非(fei)(fei)常關鍵的(de)(de)。本(ben)(ben)頂(ding)(ding)管工程在頂(ding)(ding)進長度超過100米時，考慮在機(ji)頭后設置一(yi)只中繼(ji)間，并采用(yong)觸變泥(ni)漿注漿工藝。中繼(ji)間由前(qian)殼(ke)(ke)體、千斤頂(ding)(ding)及后殼(ke)(ke)體組(zu)成。

該技(ji)術在我國沿海(hai)經(jing)濟發達地區(qu)廣泛用于(yu)城市地下給排水管道、石油管道、通訊電纜等各(ge)種(zhong)管道的(de)非開挖鋪設。非開挖技(ji)術是才開始頻繁使用的(de)一個術語，它涉(she)及的(de)是利用少開挖，即工作(zuo)(zuo)井(jing)(jing)與接收(shou)井(jing)(jing)要(yao)開挖，以及不開挖，即管道不開挖技(ji)術來進行地下管線的(de)鋪設或更換(huan)。分壓環制(zhi)作(zuo)(zuo)具(ju)有足夠的(de)剛性，與管端面接觸相(xiang)對平整(zheng)，無變形。在長距離(li)頂進過(guo)程(cheng)中，當(dang)頂進阻(zu)力(li)超過(guo)容許總(zong)頂力(li)時，無法一次達到頂進距離(li)時，須(xu)設置中繼(ji)間分段接力(li)頂進。