有毒(du)體(ti)的檢測與防(fang)護頂(ding)管(guan)(guan)(guan)施工(gong)的地層(ceng)一般會通過(guo)淤泥層(ceng)，腐爛動(dong)、植物體(ti)會在地下形成(cheng)有毒(du)體(ti)聚集體(ti)，危害施工(gong)人(ren)員(yuan)的健康和生(sheng)命(ming)，所以(yi)有人(ren)員(yuan)在頂(ding)管(guan)(guan)(guan)內(nei)(nei)操(cao)作的情況下，需要定時監測管(guan)(guan)(guan)內(nei)(nei)有毒(du)體(ti)含(han)量(liang)，采用通風裝置予以(yi)解決。頂(ding)管(guan)(guan)(guan)機(ji)通常用于小(xiao)直(zhi)徑斷面巖石(shi)和土(tu)體(ti)掘進，其中心就是將一些本來(lai)集成(cheng)在盾構(gou)機(ji)外部的功用部件拿(na)出來(lai)，以(yi)減(jian)少其尺寸，頂(ding)推(tui)安(an)裝在任務井里。頂(ding)管(guan)(guan)(guan)機(ji)械選(xuan)型取(qu)決于地質勘探和管(guan)(guan)(guan)徑。管(guan)(guan)(guan)徑有800-5000mm鋼筋混凝土(tu)管(guan)(guan)(guan)，玻璃纖維夾砂管(guan)(guan)(guan)，鋼管(guan)(guan)(guan)之(zhi)類，依據(ju)管(guan)(guan)(guan)徑大小(xiao)和資料不同(tong)，選(xuan)擇不同(tong)頂(ding)進機(ji)頭。

該技術在(zai)我(wo)國沿海經濟發達(da)地區廣泛用于城市地下(xia)(xia)給(gei)排水(shui)管(guan)(guan)道(dao)、石油(you)(you)管(guan)(guan)道(dao)、通訊(xun)電纜(lan)等各種管(guan)(guan)道(dao)的非(fei)開挖鋪(pu)設。頂(ding)管(guan)(guan)施(shi)工(gong)(gong)借助于主頂(ding)油(you)(you)缸及管(guan)(guan)道(dao)間(jian)中繼(ji)間(jian)等的推力，把(ba)工(gong)(gong)具(ju)(ju)管(guan)(guan)或掘進(jin)機(ji)從工(gong)(gong)作井(jing)(jing)內穿過土(tu)層一直推到接收井(jing)(jing)內吊起。與此同(tong)時，也就把(ba)緊隨工(gong)(gong)具(ju)(ju)管(guan)(guan)或掘進(jin)機(ji)后的管(guan)(guan)道(dao)埋設在(zai)兩井(jing)(jing)之間(jian)，以期實現非(fei)開挖敷設地下(xia)(xia)管(guan)(guan)道(dao)的施(shi)工(gong)(gong)方法。地下(xia)(xia)管(guan)(guan)線是城市基礎設施(shi)的重要組成部分，電纜(lan)管(guan)(guan)、上下(xia)(xia)水(shui)管(guan)(guan)網、熱力(動力)管(guan)(guan)道(dao)同(tong)地下(xia)(xia)鐵道(dao)一起，被稱為城市的生(sheng)命線，隨著社會的發展(zhan)，地下(xia)(xia)管(guan)(guan)線的長度持續增加，非(fei)開挖市場(chang)存(cun)在(zai)生(sheng)長空間(jian)。

非(fei)開挖技(ji)術(shu)是極為(wei)重要的(de)(de)(de)一種都市鋪(pu)設(she)管(guan)道的(de)(de)(de)施(shi)工(gong)(gong)手段，采用非(fei)開挖技(ji)術(shu)鋪(pu)設(she)管(guan)道具有若干(gan)得天獨厚(hou)的(de)(de)(de)優(you)勢。頂管(guan)施(shi)工(gong)(gong)是一種在(zai)不(bu)開挖或(huo)許少(shao)開挖路(lu)面的(de)(de)(de)狀況(kuang)下，埋設(she)管(guan)道的(de)(de)(de)施(shi)工(gong)(gong)技(ji)術(shu)，可解(jie)決管(guan)道埋設(she)施(shi)工(gong)(gong)對城(cheng)市建筑物的(de)(de)(de)毀壞和形成交通堵塞的(de)(de)(de)難(nan)題(ti)，在(zai)波動土層和環境保(bao)護方具有優(you)勢。施(shi)工(gong)(gong)人員更應經(jing)過嚴格培訓，非(fei)開挖施(shi)工(gong)(gong)工(gong)(gong)程廠家，熟練掌握施(shi)工(gong)(gong)技(ji)巧(qiao)，保(bao)證施(shi)工(gong)(gong)順利進(jin)行，人員在(zai)頂管(guan)內(nei)操(cao)作的(de)(de)(de)情況(kuang)下，需要定時監測管(guan)內(nei)有毒(du)體含(han)量。