涵(han)洞(dong)(dong)是(shi)指在公路(lu)工程建設中,為(wei)了使公路(lu)順利通(tong)過水(shui)渠不妨礙交通(tong),設于路(lu)基下(xia)修筑于路(lu)面以(yi)下(xia)的(de)排水(shui)孔道(dao)(過水(shui)通(tong)道(dao)),通(tong)過這(zhe)種結構可以(yi)讓(rang)水(shui)從(cong)公路(lu)的(de)下(xia)面流過。用于跨越天然溝(gou)谷洼地(di)排泄洪水(shui),或(huo)(huo)橫跨大小道(dao)路(lu)作(zuo)為(wei)人、畜和(he)車(che)輛的(de)立交通(tong)道(dao),或(huo)(huo)農田灌溉作(zuo)為(wei)水(shui)渠。涵(han)洞(dong)(dong)主要由洞(dong)(dong)身、基礎、端(duan)和(he)翼墻等。涵(han)洞(dong)(dong)是(shi)根據連通(tong)器的(de)原理,常(chang)用磚、石、混(hun)凝(ning)土和(he)鋼筋混(hun)凝(ning)土等材料筑成。一般孔徑較小,形(xing)狀有管形(xing)、箱形(xing)及拱形(xing)等。
加工制(zhi)作鋼(gang)波紋涵管后怎樣運送至現場?
針對涵洞存(cun)在的(de)問題,推(tui)廣新型的(de)結構來(lai)改善(shan)傳(chuan)統(tong)涵洞的(de)不(bu)足(zu),因此鋼波紋管(guan)管(guan)涵(han)(han)營運(yun)而(er)生。施工(gong)簡略、周期短選用鋼波(bo)(bo)紋管(guan)施工(gong)工(gong)期短,土(tu)建與型(xing)材(cai)裝置(zhi)可分(fen)隔(ge)實(shi)施,然后進行整體組裝。鋼波(bo)(bo)紋管(guan)涵(han)(han)比(bi)較(jiao)鋼筋混(hun)凝(ning)土(tu)涵(han)(han),可節約(yue)(yue)(yue)工(gong)期近1個(ge)多(duo)月,以長10m的(de)構造物為(wei)例:束裝式(shi)波(bo)(bo)紋管(guan)現場裝置(zhi)時(shi)刻(ke)約(yue)(yue)(yue)為(wei)0.5d,回填(tian)時(shi)刻(ke)約(yue)(yue)(yue)為(wei)1d;組裝式(shi)波(bo)(bo)紋管(guan)涵(han)(han)現場組裝時(shi)刻(ke)約(yue)(yue)(yue)為(wei)2d,回填(tian)時(shi)刻(ke)約(yue)(yue)(yue)為(wei)3d;
鐵路鋼波紋管(guan)
若選用圬工(gong)構造物,修建時刻通(tong)(tong)常(chang)為30d擺(bai)布,且施工(gong)工(gong)序繁瑣,消耗(hao)很(hen)多的(de)物力、人力,當涵洞處于重要路(lu)段時,其施工(gong)時刻長(chang)將直接(jie)影響到該段路(lu)的(de)施工(gong)疏通(tong)(tong),而選用鋼波紋(wen)管(guan)能(neng)夠(gou)(gou)保證提(ti)早1個月(yue)的(de)通(tong)(tong)車需求,所發生(sheng)的(de)經濟效益是無與倫(lun)比的(de),此外(wai)選用鋼波紋(wen)管(guan)現場裝置(zhi)便利,通(tong)(tong)常(chang)選用螺栓銜接(jie),裝置(zhi)只(zhi)需簡略的(de)裝置(zhi)東西(xi),能(neng)夠(gou)(gou)悉數選用人工(gong)安裝,不(bu)需運(yun)用大型設備。
耐久(jiu)性好鋼波紋管涵(han)通常選用(yong)工(gong)(gong)廠(chang)加(jia)工(gong)(gong)制作,出廠(chang)前涵管(guan)及配套附件均經過(guo)熱(re)浸(jin)鍍(du)鋅處(chu)理,每一(yi)道(dao)制造工(gong)(gong)序都有(you)嚴厲的質量檢測把(ba)關,運(yun)至施(shi)工(gong)(gong)現(xian)場后(hou),在(zai)工(gong)(gong)地現(xian)場對其(qi)(qi)(qi)涂刷瀝(li)(li)青(qing),進一(yi)步加(jia)強(qiang)對其(qi)(qi)(qi)外(wai)觀的維(wei)(wei)(wei)護防腐,以增(zeng)強(qiang)其(qi)(qi)(qi)規劃(hua)運(yun)用(yong)年限,后(hou)期運(yun)營過(guo)程(cheng)中還可根據具體情況在(zai)管(guan)內壁(bi)增(zeng)涂瀝(li)(li)青(qing)涂層對其(qi)(qi)(qi)加(jia)強(qiang)維(wei)(wei)(wei)護,比較傳統圬工(gong)(gong)涵洞具有(you)耐久(jiu)性好(hao)、維(wei)(wei)(wei)護費(fei)用(yong)低(di)、重(zhong)建(jian)率低(di)一(yi)級(ji)優點。
公路鋼波紋管
鋼(gang)波紋(wen)涵管的發展在我(wo)們高速公路建設過程(cheng)中,涵洞(dong)是(shi)一(yi)(yi)種(zhong)常見的結(jie)構也(ye)是(shi)一(yi)(yi)種(zhong)十分重要的結(jie)構,涵洞(dong)結(jie)構一(yi)(yi)直(zhi)采用箱涵、蓋板涵、圓涵管、拱(gong)涵等(deng)幾種(zhong)型(xing)式(shi),涵洞(dong)在施工(gong)中存(cun)在設計(ji)繁瑣,施工(gong)時間周(zhou)期長,涵洞(dong)的孔(kong)徑周(zhou)期小容易(yi)出現沉降和(he)跳車等(deng)問題。
鋼筋混凝土(tu)涵洞在常年出現(xian)凍土(tu)、膨脹土(tu)和(he)軟(ruan)土(tu)燈不(bu)亮(liang)的(de)地(di)質條件地(di)區和(he)高(gao)填方(fang)路段(duan),地(di)震多發地(di)帶(dai)的(de)公路和(he)鐵路地(di)帶(dai)的(de)運營(ying)中(zhong)會(hui)出現(xian)不(bu)同程度(du)的(de)損(sun)害還會(hui)對涵洞的(de)征(zheng)途造(zao)成破壞(huai),終會(hui)造(zao)成路面大面積的(de)塌陷給高(gao)速(su)公路的(de)行車(che)帶(dai)來很大的(de)不(bu)便還會(hui)給行車(che)人帶(dai)來很大的(de)安全隱患。想了(le)解更(geng)多關于鋼波(bo)紋涵管的(de)新聞動態請點(dian)擊:hanihanbj.com
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