鋼波紋管代替(ti)鋼(gang)筋混(hun)凝土進(jin)行涵洞施工有利于解決北方(fang)寒冷地(di)區冬季(ji)管(guan)(guan)涵混(hun)凝土結構的(de)破壞問題(ti),適用于高原地(di)區。楔形(xing)部回填不(bu)密實,導(dao)致(zhi)金屬波紋(wen)涵管(guan)(guan)管(guan)(guan)體底部變(bian)平。鋼(gang)波紋(wen)涵管(guan)(guan)表(biao)示(shi)有五種情況會導(dao)致(zhi)回填變(bian)形(xing),分別是:鋼(gang)波紋(wen)管(guan)(guan)兩側(ce)不(bu)對稱回填導(dao)致(zhi)鴨蛋圓,嚴重的(de)導(dao)致(zhi)塌垮。
哪些原因會(hui)導致鋼(gang)波(bo)紋涵管變形?
金(jin)屬波紋管(guan)(guan)涵是一種柔性(xing)(xing)結(jie)構,波紋管(guan)(guan)在結(jie)構上具(ju)有橫向(xiang)補償位移的優良特(te)性(xing)(xing),可充分(fen)發揮鋼材抗拉性(xing)(xing)能強、變形性(xing)(xing)能優越的特(te)點,具(ju)有較大的抗變形和抗沉降能力,特(te)別適合于軟土、膨脹(zhang)土、濕陷(xian)性(xing)(xing)黃土等地(di)(di)基承載力較低(di)地(di)(di)區和地(di)(di)震多(duo)發地(di)(di)區。
鐵路鋼波紋管(guan)
由于金(jin)屬波(bo)紋(wen)管涵施(shi)工(gong)(gong)(gong)簡單且施(shi)工(gong)(gong)(gong)工(gong)(gong)(gong)期短(一(yi)(yi)般(ban)一(yi)(yi)道(dao)涵洞的(de)(de)施(shi)工(gong)(gong)(gong)時(shi)間在一(yi)(yi)個工(gong)(gong)(gong)作日以(yi)內),減短了(le)多年(nian)凍土的(de)(de)裸(luo)露時(shi)間,凍融量小,故特別適(shi)用(yong)于多年(nian)凍土地區。金(jin)屬波(bo)紋(wen)管涵施(shi)工(gong)(gong)(gong)時(shi)對環境的(de)(de)破壞(huai)小,適(shi)用(yong)于生態環境脆(cui)弱的(de)(de)地區。
金屬波(bo)紋涵管(guan)(guan)(guan)管(guan)(guan)(guan)體50cm內兩側回填(tian)材(cai)料(liao)達不到(dao)要求,應填(tian)沙性材(cai)料(liao),施工(gong)時卻填(tian)筑(zhu)了(le)黃土、膨脹土等材(cai)料(liao),遇水變(bian)軟,無承載(zai)能(neng)力(li),導致管(guan)(guan)(guan)體橫(heng)向(xiang)變(bian)形過大。由于(yu)采用標準化(hua)設計、生(sheng)產(chan)(chan),設計簡單,生(sheng)產(chan)(chan)不受環境影響(xiang),進行(xing)集(ji)中工(gong)廠化(hua)生(sheng)產(chan)(chan),生(sheng)產(chan)(chan)周期短,故適用于(yu)質量要求高、工(gong)期緊(jin)的工(gong)程項(xiang)目。
鋼波紋涵管(guan)使用過程中,有(you)(you)時會出現回填(tian)變(bian)形(xing)的(de)情況,那么什么原因導致鋼波紋涵管(guan)回填(tian)變(bian)形(xing)?今天就一起(qi)來看看這個問題。管(guan)體(ti)(ti)楔形(xing)部及兩側(ce)局部有(you)(you)大石塊,導致局部管(guan)體(ti)(ti)局部有(you)(you)硬割傷或凸(tu)起(qi)。
金屬波紋(wen)管(guan)涵(han)(han)施(shi)工只(zhi)需對基礎和進出(chu)口(kou)進行處理(li),砂(sha)(sha)、石(shi)材料用量(liang)小,故適用于砂(sha)(sha)、石(shi)材缺乏的地(di)區(qu)。金屬波紋(wen)管(guan)涵(han)(han)施(shi)工只(zhi)需很少的人工,故適用在(zai)勞動力缺乏地(di)區(qu)。金屬波紋(wen)涵(han)(han)管(guan)兩側(ce)填土不(bu)密實(shi),導致變形(xing)過大(da)。想了(le)解更多關于鋼波紋(wen)涵(han)(han)管(guan)的新聞動態請點擊:hanihanbj.com
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