鋼波紋管的(de)(de)波紋結(jie)(jie)構(gou)可使涵(han)洞(dong)路面受(shou)力合(he)理,荷載散布均(jun)勻,并具有必定(ding)的(de)(de)抗變形(xing)才能,能解決北方寒冷地區(霜凍)對(dui)橋梁和管(guan)涵(han)砼結(jie)(jie)構(gou)的(de)(de)破壞問題;使路外表沒有伸縮(suo)縫,進步(bu)行車舒服。并且也有利于改進軟(ruan)土(tu)地基結(jie)(jie)構(gou)與路堤交界處(chu)的(de)(de)“錯臺(tai)”現象,進步(bu)行車的(de)(de)安全(quan)性。
鋼(gang)波(bo)(bo)(bo)紋(wen)(wen)管(guan)涵的(de)工(gong)后(hou)營運、維護成(cheng)(cheng)本(ben)低(di),工(gong)程實際造價也低(di)于同類(lei)跨徑的(de)橋梁、涵洞。金屬波(bo)(bo)(bo)紋(wen)(wen)管(guan)涵也叫波(bo)(bo)(bo)紋(wen)(wen)管(guan)涵,是指(zhi)鋪(pu)埋在公(gong)路(lu)、鐵路(lu)路(lu)下(xia)的(de)涵洞用(yong)的(de)螺紋(wen)(wen)波(bo)(bo)(bo)紋(wen)(wen)管(guan),它是由波(bo)(bo)(bo)形(xing)鋼(gang)板(ban)卷制成(cheng)(cheng)或用(yong)波(bo)(bo)(bo)形(xing)鋼(gang)片組拼成(cheng)(cheng)的(de)圓形(xing)鋼(gang)結(jie)構管(guan)。
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(ying)用(yong)于公(gong)路(lu),鐵路(lu),小橋,通(tong)道,擋土墻(qiang)(qiang)以及各種礦場,巷道擋墻(qiang)(qiang)支(zhi)護(hu)等工程中(zhong)的(de)(de)涵洞(管(guan))。當鋼制波紋(wen)管(guan)涵處于軟土地基(ji)上時,需對軟土路(lu)基(ji)進行(xing)處理,然后,在(zai)其上填一(yi)層(ceng)大于20cm厚(hou)的(de)(de)砂礫墊層(ceng),并夯實嚴密。承(cheng)載(zai)才能不太高(gao)的(de)(de)一(yi)般地基(ji),需設必定厚(hou)度的(de)(de)根底。
可是,若將涵管(guan)底基槽原狀土經嚴厲夯實(其夯實度(du)到重型擊實密(mi)實度(du)的(de)(de)(de)90%以(yi)上(shang))以(yi)后,也可直接將鋼(gang)制波紋管(guan)涵置(zhi)于(yu)地基上(shang)。未經篩分的(de)(de)(de)砂(sha),碎石,砂(sha)礫土以(yi)及砂(sha)質土都是比較理想的(de)(de)(de)地基材(cai)料,但需鏟除(chu)10cm以(yi)上(shang)的(de)(de)(de)石塊等硬物(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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