供應直徑4米大口徑拼裝金屬波紋管 鋼波紋管
鋼波紋管的材料普通為青銅(tong)(tong)、黃銅(tong)(tong)、不銹鋼、蒙(meng)乃爾合(he)(he)金(jin)和因康鎳爾合(he)(he)金(jin)等。鋼波紋管選用規(gui)范化設計方(fang)案,出產制作,設計方(fang)案簡(jian)易(yi),出產制作周期(qi)時間短;工(gong)(gong)(gong)程項目具體工(gong)(gong)(gong)程造(zao)價比類(lei)似(si)跨距的橋,洞(dong)低;工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)短工(gong)(gong)(gong)期(qi),要害為組裝工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong);金(jin)屬材料波紋管替代混凝土結構展開洞(dong)工(gong)(gong)(gong)程施(shi)工(gong)(gong)(gong)。
鋼板鋼波紋管對基(ji)底(di)的(de)地(di)(di)基(ji)承載(zai)力一(yi)般情況下可按以下數值參考規劃,管頂填土高度h≤10m時,地(di)(di)基(ji)承載(zai)力不小于(yu)(yu)180Kpa;10m≤h≤15m時,地(di)(di)基(ji)承載(zai)力不小于(yu)(yu)200Kpa;15m≤h≤20m時,地(di)(di)基(ji)承載(zai)力不小于(yu)(yu)220Kpa;20m≤h≤25m時,地(di)(di)基(ji)承載(zai)力不小于(yu)(yu)250Kpa。
鋼(gang)波(bo)紋(wen)管涵具(ju)有(you)工期短、重(zhong)量輕、安裝方便、耐(nai)久(jiu)性好(hao)(hao)、工程造價低、抗變(bian)形能力(li)強、減少通車后養(yang)護成本(ben)等特(te)點,從材料與結構和功能的(de)(de)本(ben)質關系分析,采用(yong)柔性、高強度的(de)(de)鋼(gang)波(bo)紋(wen)管涵洞(dong),不(bu)僅具(ju)有(you)適應(ying)地(di)基(ji)與基(ji)礎變(bian)形的(de)(de)能力(li),可以(yi)解(jie)決因(yin)地(di)基(ji)基(ji)礎不(bu)均勻沉降導致的(de)(de)涵洞(dong)破壞問題,而(er)且鋼(gang)波(bo)紋(wen)管涵洞(dong)由于軸向波(bo)紋(wen)的(de)(de)存在使其具(ju)有(you)優(you)良的(de)(de)受力(li)特(te)征(zheng),軸向和徑向同時(shi)分布(bu)因(yin)荷(he)載引起(qi)的(de)(de)應(ying)力(li)應(ying)變(bian),可以(yi)更大(da)程度分散荷(he)載的(de)(de)應(ying)力(li)集中,更好(hao)(hao)地(di)發揮(hui)鋼(gang)結構的(de)(de)優(you)勢。尤其在高寒凍土(tu)(tu)、軟土(tu)(tu)、膨脹土(tu)(tu)、濕陷性黃土(tu)(tu)等地(di)帶,具(ju)有(you)明顯的(de)(de)經(jing)濟(ji)效益。
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