預埋式注漿管
注(zhu)(zhu)漿(jiang)管(guan)(guan)(guan)在樁(zhuang)身混凝土澆筑前應與鋼(gang)筋(jin)籠同(tong)步吊裝焊(han)接(jie)(注(zhu)(zhu)漿(jiang)管(guan)(guan)(guan)底(di)(di)與鋼(gang)筋(jin)籠底(di)(di)籠焊(han)接(jie)時應比鋼(gang)筋(jin)籠底(di)(di)長20cm左(zuo)右),注(zhu)(zhu)漿(jiang)管(guan)(guan)(guan)應對稱焊(han)接(jie)固(gu)定(ding)(ding)在鋼(gang)筋(jin)籠孔段內(或(huo)外),每(mei)隔2m設置一個ф14鋼(gang)筋(jin)箍定(ding)(ding)位固(gu)定(ding)(ding)。注(zhu)(zhu)漿(jiang)管(guan)(guan)(guan)道直入孔底(di)(di),進入樁(zhuang)底(di)(di)卵(luan)石層10cm,頂部(bu)高出地面(mian)10~20cm。 注(zhu)(zhu)漿(jiang)管(guan)(guan)(guan)道應采(cai)用套管(guan)(guan)(guan)焊(han)接(jie),接(jie)頭應密封(feng),以防