鋼波紋管出(chu)(chu)廠(chang)時,涵(han)(han)(han)管及配件均經由熱(re)浸鍍鋅處(chu)理(li),鍍鋅層(ceng)(ceng)均勻厚(hou)度(du)大(da)于84μm,在沒有亂(luan)石(shi)沖洗(xi)的(de)(de)情(qing)(qing)況下,它的(de)(de)鍍鋅層(ceng)(ceng)就可防(fang)止銹蝕。目前海(hai)內涵(han)(han)(han)管出(chu)(chu)廠(chang)前,根據(ju)鋼管管壁每年蝕耗(hao)厚(hou)度(du)0.01-0.03mm,產(chan)品都(dou)比(bi)(bi)國外涵(han)(han)(han)管做(zuo)的(de)(de)要守(shou)舊,比(bi)(bi)正(zheng)常管壁厚(hou)度(du)增加(jia)了0.5mm,可進步使(shi)用(yong)壽(shou)(shou)命(ming),而(er)且(qie)涵(han)(han)(han)管運至施工現場后,工地(di)涂(tu)(tu)涮兩(liang)遍瀝青(qing)(qing),瀝青(qing)(qing)涂(tu)(tu)層(ceng)(ceng)厚(hou)度(du)達(da)到0.3-0.5mm,并且(qie)根據(ju)海(hai)內車輛(liang)超(chao)載運輸的(de)(de)實際情(qing)(qing)況,還對金(jin)屬波紋涵(han)(han)(han)管的(de)(de)技術參數（波距(ju),波深,壁厚(hou)）進行了調整,增大(da)了涵(han)(han)(han)管在海(hai)內使(shi)用(yong)的(de)(de)保(bao)(bao)險系數。以(yi)上(shang)幾種措施即可知足(zu)使(shi)用(yong)要求(qiu),使(shi)用(yong)壽(shou)(shou)命(ming)完全能(neng)適合(he)公路的(de)(de)需(xu)求(qiu),更能(neng)知足(zu)受流(liu)石(shi)沖洗(xi)的(de)(de)涵(han)(han)(han)洞,確保(bao)(bao)流(liu)石(shi)對涵(han)(han)(han)管管壁的(de)(de)沖擊。

鋼波紋管的問世解決了哪些實質性問題？

鋼波(bo)紋(wen)管涵洞的施(shi)工(gong)(gong)主要(yao)有(you)以下(xia)(xia)特點(dian)：首(shou)先，其(qi)(qi)施(shi)工(gong)(gong)工(gong)(gong)藝流程較(jiao)為特殊(shu)，在施(shi)工(gong)(gong)前要(yao)進(jin)行(xing)以下(xia)(xia)工(gong)(gong)作(zuo)(zuo)：施(shi)工(gong)(gong)前預備、施(shi)工(gong)(gong)放(fang)樣(yang)、設置圍(wei)堰(yan)、排水(shui)清淤以及平整場地等(deng)。在施(shi)工(gong)(gong)工(gong)(gong)作(zuo)(zuo)中要(yao)對(dui)(dui)(dui)其(qi)(qi)壓實(shi)度(du)、含水(shui)量進(jin)行(xing)檢測(ce)(ce)，接著對(dui)(dui)(dui)水(shui)準進(jin)行(xing)丈(zhang)量，基(ji)于此，對(dui)(dui)(dui)施(shi)工(gong)(gong)基(ji)礎進(jin)行(xing)分(fen)層回填(tian)，檢測(ce)(ce)壓實(shi)度(du)、含水(shui)量等(deng)，接著要(yao)拼裝管節，對(dui)(dui)(dui)工(gong)(gong)程的密水(shui)情(qing)況及管底(di)縱坡進(jin)行(xing)檢測(ce)(ce)，并對(dui)(dui)(dui)防腐涂層進(jin)行(xing)檢測(ce)(ce)與補(bu)救。施(shi)工(gong)(gong)的樞(shu)紐的環節就是(shi)將涵管進(jin)行(xing)就位，將涵管兩側(ce)進(jin)行(xing)分(fen)層回填(tian)，并要(yao)檢測(ce)(ce)壓實(shi)度(du)、含水(shui)量等(deng)，后進(jin)出(chu)口處理工(gong)(gong)作(zuo)(zuo)。

在公(gong)路(lu)涵(han)洞(dong)(dong)中(zhong)對其(qi)破(po)壞更(geng)大的(de)(de)因素就是沉降不(bu)平(ping)(ping)均(jun)，公(gong)路(lu)涵(han)洞(dong)(dong)施工(gong)(gong)中(zhong)，其(qi)使用(yong)(yong)材料與工(gong)(gong)程結(jie)構具(ju)有(you)(you)(you)一(yi)定(ding)(ding)的(de)(de)關系。通常情況下，施工(gong)(gong)職員都會使用(yong)(yong)柔性、高強度的(de)(de)鋼(gang)(gang)波(bo)(bo)紋(wen)管涵(han)洞(dong)(dong)，這種材料不(bu)僅(jin)具(ju)有(you)(you)(you)一(yi)定(ding)(ding)的(de)(de)適應(ying)地(di)基(ji)與基(ji)礎變形的(de)(de)能力，而且對于解決因地(di)基(ji)基(ji)礎不(bu)平(ping)(ping)均(jun)沉降導致的(de)(de)涵(han)洞(dong)(dong)破(po)壞題目也具(ju)有(you)(you)(you)重要作用(yong)(yong)，鋼(gang)(gang)波(bo)(bo)紋(wen)管涵(han)洞(dong)(dong)因其(qi)軸向波(bo)(bo)紋(wen)的(de)(de)存(cun)在使之具(ju)有(you)(you)(you)良(liang)好的(de)(de)受力能力。鋼(gang)(gang)波(bo)(bo)紋(wen)管涵(han)洞(dong)(dong)的(de)(de)軸向和徑(jing)向同時(shi)分布可以(yi)在一(yi)定(ding)(ding)程度上將荷載的(de)(de)應(ying)力進行有(you)(you)(you)效(xiao)分散，從(cong)而更(geng)好地(di)施展(zhan)鋼(gang)(gang)結(jie)構的(de)(de)上風。利用(yong)(yong)鋼(gang)(gang)波(bo)(bo)紋(wen)管結(jie)構可以(yi)有(you)(you)(you)效(xiao)修筑不(bu)良(liang)工(gong)(gong)程巖土地(di)區(qu)的(de)(de)涵(han)洞(dong)(dong)，如：多(duo)年(nian)凍土、軟土、膨脹土、濕(shi)陷性黃土等不(bu)良(liang)工(gong)(gong)程巖土地(di)區(qu)。鋼(gang)(gang)波(bo)(bo)紋(wen)管因其(qi)明顯的(de)(de)上風也使其(qi)具(ju)有(you)(you)(you)更(geng)廣闊的(de)(de)應(ying)用(yong)(yong)遠景(jing)。 

鋼(gang)波(bo)(bo)紋管(guan)(guan)作為一種新型技術(shu)在公路涵(han)洞(dong)工程(cheng)施工中的具(ju)有(you)很(hen)大的上風，鋼(gang)波(bo)(bo)紋管(guan)(guan)涵(han)洞(dong)技術(shu)不僅具(ju)有(you)施工周期短、適(shi)應能力強、地(di)基(ji)承載力要求低的特點(dian)，而(er)(er)且具(ju)有(you)較(jiao)強的耐性，可以大大減少施工的時間，因而(er)(er)這種技術(shu)被運用。本文主(zhu)要探討了(le)鋼(gang)波(bo)(bo)紋管(guan)(guan)涵(han)洞(dong)的技術(shu)特點(dian)以及上風。

金(jin)屬波紋涵管代替鋼筋混(hun)凝(ning)土(tu)進(jin)行(xing)涵洞施(shi)(shi)工(gong)(gong)(gong),不(bu)管從施(shi)(shi)工(gong)(gong)(gong)周期(qi),施(shi)(shi)工(gong)(gong)(gong)造價(jia),環保(bao)意義等方(fang)面都(dou)有其不(bu)可相比的(de)優勝(sheng)性(xing),且用金(jin)屬波紋涵管進(jin)行(xing)涵洞施(shi)(shi)工(gong)(gong)(gong),可大大進(jin)步(bu)道路(lu)行(xing)車的(de)恬靜度與安全(quan)性(xing),避免道路(lu)中涵洞的(de)“錯臺跳車”現(xian)形(xing),有利于解決西(xi)北及我(wo)國嚴(yan)寒地區霜凍對砼管涵結構的(de)破壞(huai)題(ti)目(mu)。

有利于改善軟土(tu),膨脹土(tu),濕陷(xian)性黃土(tu)等特(te)殊地基結構(gou)物處的不平(ping)均沉(chen)降題目,進步了公路服務機能,減少了工后養護本(ben)錢；解決北方嚴寒地區（霜凍）對(dui)橋梁混凝土(tu)結構(gou)的破壞(huai)。

工程(cheng)實際造價比(bi)同類(lei)跨徑的橋,涵洞(dong)低;施工工期(qi)短(duan),主要為(wei)拼(pin)裝施工；采用(yong)尺度化(hua)設(she)計(ji),出(chu)產,設(she)計(ji)簡樸(pu),出(chu)產周期(qi)短(duan)；出(chu)產不受環境影響,進行集(ji)中工廠化(hua)出(chu)產,有(you)利降(jiang)低本錢,控制質(zhi)量(liang)；現場安(an)裝不需使用(yong)大型(xing)設(she)備,利便安(an)裝；減少了水(shui)泥,塊(kuai)片石(shi)或碎石(shi),砂(sha)等的用(yong)量(liang),有(you)利于環保；