采用(yong)(yong)4臺200噸/臺千斤頂(ding)(ding)(ding)(ding)作(zuo)為(wei)主頂(ding)(ding)(ding)(ding)，千斤頂(ding)(ding)(ding)(ding)行程為(wei)1.4米。千斤頂(ding)(ding)(ding)(ding)動力(li)由油泵提供。千斤頂(ding)(ding)(ding)(ding)后端用(yong)(yong)道(dao)木(mu)和分壓環(huan)將(jiang)反力(li)均勻作(zuo)用(yong)(yong)于(yu)工(gong)(gong)(gong)作(zuo)井，前端頂(ding)(ding)(ding)(ding)進分壓環(huan)，頂(ding)(ding)(ding)(ding)鐵將(jiang)頂(ding)(ding)(ding)(ding)力(li)傳至管節(jie)。非開挖工(gong)(gong)(gong)程技術了管道(dao)埋設施(shi)工(gong)(gong)(gong)中對城市(shi)建(jian)筑物的(de)破壞和道(dao)路交通的(de)堵塞等難題，在(zai)穩定土(tu)(tu)層和環(huan)境保護(hu)方(fang)面凸顯其優勢。頂(ding)(ding)(ding)(ding)管施(shi)工(gong)(gong)(gong)就是(shi)(shi)非開挖施(shi)工(gong)(gong)(gong)方(fang)法，是(shi)(shi)一種不開挖或者少開挖的(de)管道(dao)埋設施(shi)工(gong)(gong)(gong)技術。頂(ding)(ding)(ding)(ding)管法施(shi)工(gong)(gong)(gong)就是(shi)(shi)在(zai)工(gong)(gong)(gong)作(zuo)坑(keng)內借助(zhu)于(yu)頂(ding)(ding)(ding)(ding)進設備產生的(de)頂(ding)(ding)(ding)(ding)力(li)，克服管道(dao)與周圍土(tu)(tu)壤的(de)摩(mo)擦力(li)，將(jiang)管道(dao)按設計的(de)坡度頂(ding)(ding)(ding)(ding)入(ru)土(tu)(tu)中，并將(jiang)土(tu)(tu)方(fang)運走(zou)。

頂(ding)(ding)管(guan)直徑DN800—4500。通過(guo)(guo)工(gong)(gong)作井把要(yao)(yao)(yao)頂(ding)(ding)進(jin)的(de)(de)管(guan)子頂(ding)(ding)入接收井內(nei)(nei)，一(yi)個工(gong)(gong)作井內(nei)(nei)的(de)(de)管(guan)子可在(zai)地下(xia)穿行(xing)(xing)1500米以(yi)上(shang)，并(bing)且還(huan)能曲線穿行(xing)(xing)，以(yi)繞開(kai)(kai)一(yi)些地下(xia)管(guan)線或障礙物。無論是各行(xing)(xing)業部門規劃不到位，協調不好，還(huan)是基建發展需(xu)要(yao)(yao)(yao)，新的(de)(de)地下(xia)設施總在(zai)不斷增加，這時要(yao)(yao)(yao)么(me)(me)開(kai)(kai)挖(wa)，要(yao)(yao)(yao)么(me)(me)非(fei)開(kai)(kai)挖(wa)，必然選擇其一(yi)。根據(ju)地質報告，并(bing)結合的(de)(de)施工(gong)(gong)經驗(yan)，頂(ding)(ding)管(guan)機(ji)(ji)頭決定(ding)采用氣壓平衡(heng)網(wang)格（水沖(chong)）式機(ji)(ji)頭進(jin)行(xing)(xing)施工(gong)(gong)。該機(ji)(ji)頭在(zai)頂(ding)(ding)進(jin)過(guo)(guo)程中，非(fei)開(kai)(kai)挖(wa)施工(gong)(gong)企業，通過(guo)(guo)氣壓平衡(heng)正面土壓穩定(ding)機(ji)(ji)頭，減少外部土體(ti)對周圍地面的(de)(de)影(ying)響。

非開挖(wa)工(gong)程穿(chuan)越河流、湖泊、重(zhong)要交通干線、重(zhong)要建筑物，實(shi)現對諸如供水(shui)、煤(mei)氣、、污水(shui)、電信電纜等公(gong)用(yong)管(guan)(guan)線的(de)(de)檢(jian)測、鋪設、修復與更(geng)換(huan)的(de)(de)施(shi)(shi)工(gong)技術。相比鋼頂管(guan)(guan)，鋼筋混(hun)凝(ning)土(tu)頂管(guan)(guan)次要采(cai)用(yong)柔性接頭，其更(geng)具靈活性，兩(liang)個相近(jin)管(guan)(guan)道之(zhi)間(jian)存有(you)一(yi)(yi)定角(jiao)度(du)，因而(er)，在糾(jiu)正(zheng)偏向方面更(geng)靈敏(min)，效果更(geng)好。此外(wai)，由于兩(liang)管(guan)(guan)道之(zhi)間(jian)存在一(yi)(yi)定角(jiao)度(du)，針對這一(yi)(yi)特征，可(ke)以(yi)到達曲線頂進目的(de)(de)。由于地(di)質(zhi)強(qiang)度(du)不(bu)同，需(xu)選(xuan)用(yong)不(bu)同的(de)(de)機頭。強(qiang)度(du)大巖層(ceng)，需(xu)選(xuan)用(yong)具有(you)破巖機頭；普通土(tu)質(zhi)，可(ke)以(yi)選(xuan)用(yong)泥水(shui)均衡頂管(guan)(guan)機械進行(xing)施(shi)(shi)工(gong)即可(ke)。