頂(ding)管(guan)(guan)(guan)施(shi)(shi)工(gong)(gong)有(you)利于文明施(shi)(shi)工(gong)(gong)。泥水(shui)均衡法(fa)施(shi)(shi)工(gong)(gong)防(fang)止了泥水(shui)橫(heng)溢和稀泥亂(luan)堆放的(de)(de)不良現象，確保自然環境不受凈化(hua)。安全系數高。頂(ding)管(guan)(guan)(guan)辦法(fa)是全自動搖控，不需工(gong)(gong)人(ren)在管(guan)(guan)(guan)道內(nei)任(ren)務。采(cai)用通風裝置予以解決。前(qian)探(tan)查(cha)地(di)下管(guan)(guan)(guan)線盡(jin)管(guan)(guan)(guan)的(de)(de)頂(ding)管(guan)(guan)(guan)設備具有(you)在施(shi)(shi)工(gong)(gong)時(shi)探(tan)查(cha)前(qian)進路(lu)線不遠距(ju)離管(guan)(guan)(guan)線的(de)(de)能力，非開(kai)挖施(shi)(shi)工(gong)(gong)隊，確保公眾正常(chang)生活仍有(you)必(bi)要(yao)。頂(ding)管(guan)(guan)(guan)機械(xie)選型取決于地(di)質(zhi)勘探(tan)和管(guan)(guan)(guan)徑(jing)。管(guan)(guan)(guan)徑(jing)有(you)800-5000mm鋼(gang)(gang)筋(jin)混凝土管(guan)(guan)(guan)，玻璃纖(xian)維夾(jia)砂管(guan)(guan)(guan)，鋼(gang)(gang)管(guan)(guan)(guan)之類，依據管(guan)(guan)(guan)徑(jing)大小和資料不同，選擇不同頂(ding)進機頭(tou)。

非(fei)開(kai)挖(wa)技術不開(kai)挖(wa)地(di)面，故(gu)而被鋪設管(guan)(guan)道(dao)的(de)上部土層未經(jing)擾(rao)動，管(guan)(guan)道(dao)的(de)管(guan)(guan)節(jie)端不易產(chan)生(sheng)段差(cha)變形，其(qi)管(guan)(guan)道(dao)壽命亦大(da)于開(kai)挖(wa)法埋管(guan)(guan)。采用(yong)房下非(fei)開(kai)挖(wa)技術能節(jie)約一大(da)筆拆費(fei)用(yong)，減少(shao)動拆用(yong)房，縮短(duan)管(guan)(guan)線(xian)長度(du)。由于地(di)質強度(du)不同(tong)(tong)，需選(xuan)用(yong)不同(tong)(tong)的(de)機(ji)頭。強度(du)大(da)巖層，需選(xuan)用(yong)具有破巖機(ji)頭；普通土質，可(ke)以選(xuan)用(yong)泥水(shui)均衡頂管(guan)(guan)機(ji)械進行施(shi)工(gong)(gong)即可(ke)。要想保(bao)證(zheng)非(fei)開(kai)挖(wa)工(gong)(gong)程的(de)質量，施(shi)工(gong)(gong)單(dan)位(wei)應做好(hao)充足的(de)準(zhun)備工(gong)(gong)作。施(shi)工(gong)(gong)單(dan)位(wei)應對施(shi)工(gong)(gong)場(chang)所進行嚴(yan)格的(de)現場(chang)勘查(cha)，包括地(di)下土層、管(guan)(guan)線(xian)和地(di)上的(de)河流、橋梁、建筑物(wu)、綠化環(huan)境等。

沉井(jing)(jing)，先施工(gong)(gong)井(jing)(jing)壁，后(hou)先沉，到(dao)設(she)(she)計標(biao)高，進行封(feng)底；逆做(zuo)法(fa)：先開(kai)挖(wa)一段深(shen)度(du)(du)，后(hou)做(zuo)井(jing)(jing)壁，再(zai)開(kai)挖(wa)一段深(shen)度(du)(du)，后(hou)做(zuo)井(jing)(jing)壁，施工(gong)(gong)到(dao)設(she)(she)計標(biao)高進行封(feng)底。兩(liang)種辦法(fa)各有(you)優點，也(ye)有(you)工(gong)(gong)程穿插采用(yong)施工(gong)(gong)辦法(fa)。非(fei)開(kai)挖(wa)技(ji)術(shu)不開(kai)挖(wa)地面(mian)，故(gu)而(er)被鋪設(she)(she)管(guan)(guan)道的上(shang)部土層(ceng)未(wei)經(jing)擾動(dong)，管(guan)(guan)道的管(guan)(guan)節(jie)端不易產生段差變形，其管(guan)(guan)道壽命亦大于開(kai)挖(wa)法(fa)埋管(guan)(guan)。采用(yong)房下非(fei)開(kai)挖(wa)技(ji)術(shu)能節(jie)約一大筆拆費用(yong)，減少(shao)動(dong)拆用(yong)房，縮短管(guan)(guan)線(xian)長度(du)(du)。有(you)毒體(ti)的檢測與防護頂管(guan)(guan)施工(gong)(gong)的地層(ceng)一般會通過淤(yu)泥層(ceng)，腐爛動(dong)、植物(wu)體(ti)會在(zai)地下形成有(you)毒體(ti)聚(ju)集體(ti)，危害(hai)施工(gong)(gong)人員(yuan)(yuan)的健(jian)康和生命，所以有(you)人員(yuan)(yuan)在(zai)頂管(guan)(guan)內操作的情況下，需(xu)要定時監測管(guan)(guan)內有(you)毒體(ti)含(han)量，采用(yong)通風裝置予以解決。