鋼筋混(hun)凝(ning)土頂(ding)管是(shi)以水泥、鋼筋、沙、石(shi)子等(deng)做原(yuan)材料以離心機(ji)攪拌成型的(de)一種排(pai)污(wu)管，聊城頂(ding)管，主要用(yong)于(yu)城市雨(yu)水、污(wu)水或(huo)農(nong)田排(pai)灌等(deng)排(pai)水的(de)任務，它是(shi)一項用(yong)于(yu)市政施(shi)(shi)工(gong)的(de)非開挖(wa)掘進式頂(ding)管技(ji)術。優(you)點在于(yu)不(bu)影(ying)響周圍環境或(huo)者(zhe)影(ying)響較(jiao)(jiao)小(xiao)，施(shi)(shi)工(gong)場地小(xiao)，噪音小(xiao)。而(er)且能夠深入地下(xia)作業，混(hun)凝(ning)土頂(ding)管，這是(shi)開挖(wa)埋(mai)管無法(fa)比擬的(de)優(you)點。但是(shi)頂(ding)管技(ji)術也有缺點，施(shi)(shi)工(gong)時間較(jiao)(jiao)長(chang)，工(gong)程造價高等(deng)。

頂(ding)(ding)(ding)管(guan)(guan)施(shi)工(gong)設備(bei)主(zhu)要(yao)包括頂(ding)(ding)(ding)管(guan)(guan)機(ji)（因地質條件不(bu)同其刀盤(pan)不(bu)一(yi)）、中繼間(jian)(jian)、千(qian)斤(jin)頂(ding)(ding)(ding)及泵站(zhan)、龍門吊(diao)或汽車(che)吊(diao)、操作(zuo)間(jian)(jian)、導軌(gui)。在長距離頂(ding)(ding)(ding)管(guan)(guan)頂(ding)(ding)(ding)進施(shi)工(gong)時，需要(yao)安裝中繼間(jian)(jian)以增加頂(ding)(ding)(ding)力(li)(li)完成(cheng)隧(sui)道頂(ding)(ding)(ding)進施(shi)工(gong)。當頂(ding)(ding)(ding)進阻力(li)(li)即頂(ding)(ding)(ding)管(guan)(guan)頂(ding)(ding)(ding)進迎面阻力(li)(li)和管(guan)(guan)壁(bi)周圍摩擦阻力(li)(li)之和超(chao)過(guo)主(zhu)千(qian)斤(jin)頂(ding)(ding)(ding)的(de)允許總頂(ding)(ding)(ding)力(li)(li)或管(guan)(guan)節允許的(de)極限壓力(li)(li)或始發(fa)場地背力(li)(li)墻極限反(fan)推力(li)(li)，無(wu)法一(yi)次達到頂(ding)(ding)(ding)進距離要(yao)求時，采用中繼接力(li)(li)頂(ding)(ding)(ding)進技術，鋼承口頂(ding)(ding)(ding)管(guan)(guan)，實行(xing)分段實施(shi)使每段管(guan)(guan)道的(de)頂(ding)(ding)(ding)力(li)(li)降低到允許頂(ding)(ding)(ding)力(li)(li)范(fan)圍內。

鋼筋混凝土(tu)管頂管施工方案(an)

(1).頂(ding)管施工前(qian)應對管道通(tong)過(guo)地(di)(di)帶的地(di)(di)質(zhi)情況認真(zhen)調查，設置(zhi)測(ce)力裝置(zhi)，水(shui)泥(ni)頂(ding)管廠家，指導糾(jiu)(jiu)偏(pian)。糾(jiu)(jiu)偏(pian)應按照勤測(ce)量、勤糾(jiu)(jiu)偏(pian)、小量糾(jiu)(jiu)的操作方法進行。

(2).采(cai)用(yong)同種規格的(de)千斤頂(ding)，使其頂(ding)力(li)、行(xing)程、頂(ding)速相一致，保持頂(ding)力(li)合力(li)線與管(guan)道中心(xin)線相重合。

(3).加強頂(ding)管后(hou)(hou)背施(shi)工(gong)質量(liang)的控制，確保后(hou)(hou)背不發(fa)生位移，并應使后(hou)(hou)背平整(zheng)，以保證(zheng)頂(ding)進設備的安(an)裝精(jing)度。

(4).頂進過(guo)程中應(ying)隨時繪制頂進曲(qu)線，以(yi)利指(zhi)導頂進糾(jiu)偏工(gong)作。