【收藏】鋼波紋(wen)管安裝方法(fa)
1、涵洞施工前,準(zhun)備好相關材料、人員和設備進場,做好施工過程中的安全防護,并(bing)用圍欄保護路基邊坡,使石(shi)塊等物體滑下傷人
2基礎(chu)處理(li):回填砂(sha)礫(li)或(huo)片石混凝土,平整基層(ceng),可(ke)更換(huan)厚度為(wei)30-50cm的(de)砂(sha)礫(li)石材(cai)料,流水(shui)縱坡(po)宜在3%左右(you),并可(ke)確定每個涵(han)洞的(de)中(zhong)線和邊線
3。在(zai)鋼波紋(wen)管(guan)的(de)(de)施工過程中(zhong),采(cai)用(yong)分(fen)段(duan)施工的(de)(de)方法(fa)。在(zai)原(yuan)拱涵基礎上提(ti)前并(bing)排布置兩根(gen)角(jiao)鋼,長(chang)度(du)根(gen)據(ju)涵洞(dong)長(chang)度(du)確(que)定,可作為(wei)(wei)涵管(guan)推壓(ya)時的(de)(de)滑軌。鋼波紋(wen)管(guan)的(de)(de)管(guan)徑(jing)管(guan)涵可根(gen)據(ju)項(xiang)目需要有不同的(de)(de)規格(ge)。組(zu)裝管(guan)道(dao)直徑(jing)為(wei)(wei)0.5m-2.5m,每(mei)段(duan)長(chang)度(du)為(wei)(wei)3.06M。采(cai)用(yong)內(外)法(fa)蘭螺栓(shuan)連接(jie),組(zu)裝管(guan)道(dao)直徑(jing)3m-8m,板間(jian)搭接(jie)螺栓(shuan)緊固。
4如果涵(han)洞(dong)(dong)長度(du)(du)(du)(du)小(xiao)于(yu)(yu)30m,鋼(gang)波紋管(guan)涵(han)兩(liang)側與原涵(han)洞(dong)(dong)之間(jian)的寬度(du)(du)(du)(du)大于(yu)(yu)80cm,可(ke)(ke)(ke)將整個(ge)鋼(gang)波紋管(guan)涵(han)推至(zhi)下游(you)或上(shang)(shang)游(you)一(yi)端。就位后(hou),可(ke)(ke)(ke)進(jin)(jin)行(xing)一(yi)端擋(dang)土(tu)墻(qiang)的砌(qi)筑(zhu)。周(zhou)(zhou)圍回填(tian)(tian)可(ke)(ke)(ke)采用礫石、碎石土(tu)、漿砌(qi)片石等進(jin)(jin)行(xing)回填(tian)(tian)。涵(han)洞(dong)(dong)長度(du)(du)(du)(du)大于(yu)(yu)30m,鋼(gang)波紋管(guan)涵(han)兩(liang)側寬度(du)(du)(du)(du)小(xiao)于(yu)(yu)80cm時,頂(ding)(ding)部(bu)應采用漿砌(qi)片石或高壓(ya)(ya)泵送(song)膨脹水泥砂(sha)(sha)漿,3m-6m長的涵(han)管(guan)可(ke)(ke)(ke)推至(zhi)下游(you)或上(shang)(shang)游(you)的一(yi)端。就位后(hou)即(ji)可(ke)(ke)(ke)進(jin)(jin)行(xing)固定,并可(ke)(ke)(ke)修建(jian)頂(ding)(ding)部(bu)毛石端墻(qiang)。鋼(gang)波紋管(guan)管(guan)涵(han)的另一(yi)端與涵(han)洞(dong)(dong)之間(jian)的間(jian)距應使用沙(sha)袋(dai)或漿砌(qi)片石封(feng)堵,寬度(du)(du)(du)(du)為50cm,然后(hou)可(ke)(ke)(ke)以開始回填(tian)(tian)。兩(liang)側可(ke)(ke)(ke)用粗砂(sha)(sha)水密(mi)法壓(ya)(ya)實或用混凝土(tu)振搗器澆筑(zhu)。頂(ding)(ding)部(bu)采用高壓(ya)(ya)泵輸送(song)膨脹水泥砂(sha)(sha)漿。該段管(guan)道(dao)周(zhou)(zhou)圍填(tian)(tian)充(chong)完成后(hou),并連接兩(liang)根管(guan)道(dao)。連接完成后(hou),按上(shang)(shang)述(shu)方法回填(tian)(tian),并按此(ci)順序完成波紋鋼(gang)管(guan)的施工
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