1、工(gong)程(cheng)地質和水文地質條件(jian)沿管(guan)線土層變(bian)化頻繁，所以(yi)在頂管(guan)施工(gong)前須了解土層的(de)變(bian)化情況：此外對于要經過回填土地段，需(xu)要提前加固處理，以(yi)防頂管(guan)施工(gong)后地表有過大(da)的(de)下(xia)沉(chen)。

2、有(you)毒氣體(ti)的(de)檢(jian)測與(yu)防(fang)護頂(ding)(ding)管(guan)(guan)施工(gong)的(de)地層一(yi)般會通過淤泥層，腐爛動、植物體(ti)會在地下(xia)形成有(you)毒氣體(ti)聚集(ji)體(ti)，危(wei)害施工(gong)人(ren)員的(de)健(jian)康和生命，所以有(you)人(ren)員在頂(ding)(ding)管(guan)(guan)內(nei)(nei)操作的(de)情況(kuang)下(xia)，需要定時監測管(guan)(guan)內(nei)(nei)有(you)毒氣體(ti)含量(liang)，采用通風裝置(zhi)予(yu)以解(jie)決。

非開(kai)(kai)挖(wa)(wa)首先需要(yao)進(jin)(jin)(jin)(jin)行(xing)技術準(zhun)(zhun)備，其(qi)主要(yao)包括對地(di)(di)(di)(di)下管線(xian)使用現狀的(de)(de)勘察(cha)，以(yi)(yi)準(zhun)(zhun)確地(di)(di)(di)(di)掌握(wo)管線(xian)及(ji)其(qi)他基礎設(she)施(shi)的(de)(de)分布情(qing)況；按照施(shi)工(gong)(gong)區(qu)(qu)域的(de)(de)地(di)(di)(di)(di)形、路線(xian)定出鉆孔(kong)(kong)(kong)軸線(xian)，進(jin)(jin)(jin)(jin)行(xing)區(qu)(qu)域地(di)(di)(di)(di)形地(di)(di)(di)(di)貌的(de)(de)勘測與測量(liang)；對需鉆孔(kong)(kong)(kong)的(de)(de)工(gong)(gong)作(zuo)區(qu)(qu)域進(jin)(jin)(jin)(jin)行(xing)地(di)(di)(di)(di)層地(di)(di)(di)(di)質的(de)(de)現場(chang)勘查。再是進(jin)(jin)(jin)(jin)行(xing)施(shi)工(gong)(gong)場(chang)地(di)(di)(di)(di)的(de)(de)準(zhun)(zhun)備，對施(shi)工(gong)(gong)場(chang)地(di)(di)(di)(di)進(jin)(jin)(jin)(jin)行(xing)機(ji)械(xie)、機(ji)具等安(an)裝于堆放；開(kai)(kai)挖(wa)(wa)入射作(zuo)業坑(keng)，做(zuo)好支護與降(jiang)水工(gong)(gong)作(zuo)；進(jin)(jin)(jin)(jin)行(xing)施(shi)工(gong)(gong)機(ji)械(xie)進(jin)(jin)(jin)(jin)場(chang)工(gong)(gong)作(zuo)及(ji)安(an)裝；借助(zhu)導航儀進(jin)(jin)(jin)(jin)行(xing)探頭導向的(de)(de)開(kai)(kai)展。然后進(jin)(jin)(jin)(jin)行(xing)以(yi)(yi)開(kai)(kai)孔(kong)(kong)(kong)、造(zao)斜鉆進(jin)(jin)(jin)(jin)、保直鉆進(jin)(jin)(jin)(jin)為主的(de)(de)導向施(shi)工(gong)(gong)及(ji)包含孔(kong)(kong)(kong)徑設(she)計、分級擴孔(kong)(kong)(kong)、孔(kong)(kong)(kong)壁加固、回拉敷管的(de)(de)回拉擴孔(kong)(kong)(kong)的(de)(de)兩個(ge)施(shi)工(gong)(gong)步驟。

呼和浩特市鼎順機械化定向頂管有限公司一直以“創新”為其施工理念不斷發展，現已成為內蒙古知名非開挖頂管工程施工公司。我公司擁有28噸-160噸定向鉆機5臺，直徑0.8-2.5液壓頂管設備5套。多臺先進的進口導向儀和探測儀。擁有專業素質精良的的技術人員及施工隊伍，我們已經與多家企業建立了長期的合作關系。我們的工程項目是非開挖頂管拉管。歡迎與您的合作！