鋼波紋管的(de)波紋結(jie)(jie)構(gou)可使(shi)涵(han)洞路(lu)面受力合理(li),荷載散布均勻,并具有必定的(de)抗(kang)變形才能,能解決(jue)北(bei)方寒冷地區(qu)(霜凍)對橋梁和(he)管(guan)涵(han)砼結(jie)(jie)構(gou)的(de)破壞(huai)問題(ti);使(shi)路(lu)外表沒有伸縮縫(feng),進(jin)步行(xing)車舒服。并且也有利于改進(jin)軟土地基結(jie)(jie)構(gou)與(yu)路(lu)堤交(jiao)界處(chu)的(de)“錯臺”現象,進(jin)步行(xing)車的(de)安全性。
鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)管涵的(de)工后營(ying)運、維護(hu)成本低,工程實際造價也(ye)(ye)低于同類跨徑的(de)橋(qiao)梁、涵洞(dong)。金屬波(bo)(bo)(bo)紋(wen)(wen)管涵也(ye)(ye)叫波(bo)(bo)(bo)紋(wen)(wen)管涵,是指鋪埋在公路、鐵路路下的(de)涵洞(dong)用的(de)螺紋(wen)(wen)波(bo)(bo)(bo)紋(wen)(wen)管,它(ta)是由(you)波(bo)(bo)(bo)形(xing)(xing)鋼(gang)板卷制(zhi)成或用波(bo)(bo)(bo)形(xing)(xing)鋼(gang)片組拼成的(de)圓形(xing)(xing)鋼(gang)結(jie)構管。
The operation and maintenance cost of steel corrugated pipe culvert after construction is low, and the actual cost of the project is also lower than that of bridges and culverts with the same span. Metal corrugated pipe culvert, also called corrugated pipe culvert, refers to the threaded corrugated pipe used for Culverts buried under roads and railways. It is a circular steel structure pipe made of corrugated steel plate or assembled with corrugated steel sheet.
應用(yong)于公路(lu)(lu),鐵路(lu)(lu),小橋(qiao),通(tong)道(dao),擋(dang)土墻以及各種礦場,巷(xiang)道(dao)擋(dang)墻支(zhi)護等(deng)工(gong)程中(zhong)的(de)涵洞(管(guan))。當鋼制波(bo)紋管(guan)涵處于軟土地基(ji)上時,需對軟土路(lu)(lu)基(ji)進行處理,然后,在其上填(tian)一(yi)層大(da)于20cm厚的(de)砂礫墊層,并夯實嚴密。承載才能不(bu)太高(gao)的(de)一(yi)般(ban)地基(ji),需設必定厚度(du)的(de)根底。
可(ke)是(shi),若將涵(han)管(guan)底基(ji)槽原(yuan)狀(zhuang)土經(jing)嚴厲夯實(其夯實度(du)(du)到重型擊實密(mi)實度(du)(du)的90%以上)以后,也可(ke)直接將鋼制波紋管(guan)涵(han)置于地(di)基(ji)上。未經(jing)篩分的砂(sha),碎石,砂(sha)礫土以及(ji)砂(sha)質土都是(shi)比較理(li)想的地(di)基(ji)材(cai)料,但需鏟除(chu)10cm以上的石塊等(deng)硬物(wu)。
鋼制波紋管涵不能直接置于巖石或混凝土基床上,因過于剛性的支承,不但會降低管壁本身所具有的突出柔性,并且還會減小涵管的承載才能。所以對巖石地基應挖掉一部分軟巖,換填一層土,并仔細夯實。開挖軟巖溝槽,不能使用烈性炸藥和放深孔炮,以防止將過多的外層炸松懈。巖石風化層地基不能作為根底,需換填上3D寬度的填土。//hanihanbj.com/
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