【收藏(zang)】鋼波紋管安裝方法
1、涵洞(dong)施(shi)(shi)工(gong)(gong)前,準備(bei)好相關材料、人員(yuan)和設備(bei)進場,做好施(shi)(shi)工(gong)(gong)過(guo)程中的安(an)全(quan)防(fang)護,并用圍欄保護路基邊坡,使(shi)石塊等物體滑下傷人
2基(ji)礎處理:回填砂礫或片(pian)石混凝土,平整基(ji)層(ceng),可更換厚度為30-50cm的砂礫石材(cai)料,流水(shui)縱坡宜(yi)在3%左(zuo)右,并(bing)可確(que)定每個涵洞的中線(xian)和邊線(xian)
3。在(zai)鋼(gang)波(bo)紋管(guan)(guan)的(de)(de)施(shi)工過程中,采用分段施(shi)工的(de)(de)方法(fa)。在(zai)原(yuan)拱涵(han)基礎上提前并(bing)排布置兩根(gen)角鋼(gang),長(chang)(chang)(chang)度(du)根(gen)據(ju)涵(han)洞(dong)長(chang)(chang)(chang)度(du)確定,可(ke)作為涵(han)管(guan)(guan)推壓時的(de)(de)滑軌。鋼(gang)波(bo)紋管(guan)(guan)的(de)(de)管(guan)(guan)徑管(guan)(guan)涵(han)可(ke)根(gen)據(ju)項(xiang)目需要有(you)不同(tong)的(de)(de)規格。組(zu)裝管(guan)(guan)道直(zhi)徑為0.5m-2.5m,每段長(chang)(chang)(chang)度(du)為3.06M。采用內(nei)(外)法(fa)蘭螺栓(shuan)連接(jie),組(zu)裝管(guan)(guan)道直(zhi)徑3m-8m,板間搭接(jie)螺栓(shuan)緊固。
4如(ru)果涵(han)洞(dong)(dong)(dong)長(chang)(chang)度(du)(du)小于30m,鋼(gang)波(bo)(bo)紋(wen)管涵(han)兩側(ce)與原涵(han)洞(dong)(dong)(dong)之間的(de)寬(kuan)度(du)(du)大于80cm,可(ke)將(jiang)整個鋼(gang)波(bo)(bo)紋(wen)管涵(han)推至下(xia)游或上游一端。就位后(hou)(hou)(hou),可(ke)進(jin)行(xing)一端擋土墻(qiang)的(de)砌筑。周圍回(hui)填可(ke)采(cai)用(yong)(yong)礫石(shi)、碎(sui)石(shi)土、漿(jiang)砌片石(shi)等(deng)進(jin)行(xing)回(hui)填。涵(han)洞(dong)(dong)(dong)長(chang)(chang)度(du)(du)大于30m,鋼(gang)波(bo)(bo)紋(wen)管涵(han)兩側(ce)寬(kuan)度(du)(du)小于80cm時,頂(ding)部(bu)應采(cai)用(yong)(yong)漿(jiang)砌片石(shi)或高壓泵送膨脹(zhang)水泥(ni)砂(sha)漿(jiang),3m-6m長(chang)(chang)的(de)涵(han)管可(ke)推至下(xia)游或上游的(de)一端。就位后(hou)(hou)(hou)即可(ke)進(jin)行(xing)固定,并可(ke)修(xiu)建(jian)頂(ding)部(bu)毛石(shi)端墻(qiang)。鋼(gang)波(bo)(bo)紋(wen)管管涵(han)的(de)另一端與涵(han)洞(dong)(dong)(dong)之間的(de)間距應使用(yong)(yong)沙袋或漿(jiang)砌片石(shi)封堵(du),寬(kuan)度(du)(du)為50cm,然后(hou)(hou)(hou)可(ke)以開始回(hui)填。兩側(ce)可(ke)用(yong)(yong)粗(cu)砂(sha)水密法(fa)壓實或用(yong)(yong)混凝土振(zhen)搗器澆筑。頂(ding)部(bu)采(cai)用(yong)(yong)高壓泵輸(shu)送膨脹(zhang)水泥(ni)砂(sha)漿(jiang)。該段管道周圍填充完成后(hou)(hou)(hou),并連(lian)接兩根(gen)管道。連(lian)接完成后(hou)(hou)(hou),按(an)上述方法(fa)回(hui)填,并按(an)此(ci)順序完成波(bo)(bo)紋(wen)鋼(gang)管的(de)施工
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