管道穿越頂管施工是鼎順頂管施工的主要項目之一，在施工過程中鉆導向孔需要注意以下事項：

一：在風化花崗巖(yan)層鉆(zhan)(zhan)進過程中(zhong)若鉆(zhan)(zhan)頭(tou)(tou)(tou)遇到(dao)(dao)巖(yan)脈或在卵石層鉆(zhan)(zhan)進過程中(zhong)遇到(dao)(dao)較大粒徑的(de)卵石時(shi)，鉆(zhan)(zhan)孔軌跡都可能較明顯(xian)地偏離設(she)計軌跡，這時(shi)鉆(zhan)(zhan)頭(tou)(tou)(tou)的(de)偏向很難預料。操作人(ren)員(yuan)在意識到(dao)(dao)鉆(zhan)(zhan)頭(tou)(tou)(tou)遇到(dao)(dao)硬物或較難鉆(zhan)(zhan)進情況等微小變化時(shi)，應馬上(shang)停鉆(zhan)(zhan)，檢驗鉆(zhan)(zhan)頭(tou)(tou)(tou)的(de)位(wei)置。此時(shi)，應降低鉆(zhan)(zhan)壓，緩(huan)慢給進，讓鉆(zhan)(zhan)頭(tou)(tou)(tou)慢慢地通(tong)過該區(qu)域。鉆(zhan)(zhan)進時(shi)，應較頻繁地檢測鉆(zhan)(zhan)頭(tou)(tou)(tou)的(de)位(wei)置。

二：當(dang)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭遇到較硬(ying)地層，通(tong)常需要(yao)加(jia)大鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)壓(ya)。但是，鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)壓(ya)加(jia)大后會引(yin)起孔(kong)內鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)桿彎曲。若鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)桿彎曲部(bu)位的(de)地層較軟，彎曲的(de)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)桿會使(shi)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)孔(kong)擴大。控向探頭只能確定鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭的(de)位置(zhi)，很難確定這(zhe)種由(you)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)桿彎曲而形成(cheng)的(de)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)孔(kong)軌(gui)跡。在這(zhe)種情況下，要(yao)適當(dang)降低鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)壓(ya)，嘗試采(cai)用(yong)沖擊鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)進的(de)方法(fa)通(tong)過硬(ying)地層，同時，增(zeng)加(jia)泵量或(huo)噴射作用(yong)或(huo)許有助于軟化(hua)障礙物。

呼和浩特市鼎順機械化定向頂管有限公司作為一家現代化的民營企業，經過多年的努力我們也在同行業內獲得了一致的好評，先后同國內多家大型相關企業結成互惠合作關系，得到更多客戶的滿意也是我們所追求的目標，我公司全體員工也熱烈的歡迎各界朋友來我公司蒞臨指導，一起創造非開挖頂管工程美好明天。 主營項目是非開挖頂管拉管，期待您的來電！