鋼波紋(wen)涵(han)(han)管的開展在(zai)咱(zan)們高速公路建設過程中,涵(han)(han)洞(dong)是一種常見的結(jie)構也是一種十分(fen)重要的結(jie)構,涵(han)(han)洞(dong)結(jie)構一直選用箱涵(han)(han)、蓋(gai)板涵(han)(han)、圓管涵(han)(han)、拱(gong)涵(han)(han)等(deng)(deng)幾種型(xing)式,涵(han)(han)洞(dong)在(zai)施(shi)工中存在(zai)規劃(hua)繁瑣,施(shi)工時間(jian)周(zhou)期長(chang),涵(han)(han)洞(dong)的孔徑周(zhou)期小容易(yi)呈現(xian)沉降和跳車(che)等(deng)(deng)問題。
鋼(gang)波紋(wen)涵管的資(zi)料主要(yao)是由鋼(gang)波紋(wen)板(ban)(ban)(ban)(ban)材和強度(du)螺栓銜(xian)接(jie)組成(cheng)的,其間鋼(gang)質波紋(wen)板(ban)(ban)(ban)(ban)材選用國內遍及運(yun)用的A3或Q235-A熱軋鋼(gang)板(ban)(ban)(ban)(ban),鋼(gang)板(ban)(ban)(ban)(ban)的理化目標(biao)要(yao)求達(da)到GB700的有關要(yao)求。板(ban)(ban)(ban)(ban)的尺(chi)寸和厚度(du)為便于板(ban)(ban)(ban)(ban)的加工制造,結構的裝(zhuang)置銜(xian)接(jie),進步(bu)板(ban)(ban)(ban)(ban)的制造精度(du),板(ban)(ban)(ban)(ban)材的尺(chi)寸宜適應不同管徑(jing)的需求,以形成(cheng)系列(lie)化
鋼波紋(wen)涵管因(yin)其一同的(de)結構,軸向(xiang)(xiang)波紋(wen)的(de)結構使(shi)得它具(ju)有(you)徑向(xiang)(xiang)剛度(du)大、軸向(xiang)(xiang)柔(rou)性大的(de)特征,然(ran)后(hou)有(you)了(le)抗彎抗裂功(gong)能(neng),能(neng)很好地習氣地基的(de)變形。而(er)混凝土結構往(wang)往(wang)會由于嚴寒導致材料變脆,導致原(yuan)有(you)涵洞呈現開裂破(po)碎情(qing)況(kuang)。施工便(bian)捷(jie),能(neng)削減對凍土層(ceng)的(de)影響,削減對石材的(de)開采,避免山體(ti)損壞,更加環保。
公路工(gong)程(cheng)的涵(han)洞(dong)一般選用金(jin)(jin)(jin)屬(shu)筋(jin)混凝土(tu)制作。現選用金(jin)(jin)(jin)屬(shu)鋼(gang)波紋涵(han)管(guan)替代金(jin)(jin)(jin)屬(shu)筋(jin)混凝土(tu)進行涵(han)洞(dong)施(shi)工(gong)在(zai)國內時一項新技術,金(jin)(jin)(jin)屬(shu)鋼(gang)波紋涵(han)管(guan)以其(qi)功(gong)能(neng)穩定、裝置便利、有利環(huan)保、造價低等(deng)優點迅速在(zai)公路施(shi)工(gong)中替代了金(jin)(jin)(jin)屬(shu)筋(jin)混凝土(tu)施(shi)工(gong)的涵(han)洞(dong),發(fa)展前景十分(fen)寬廣。
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