長春水泥管的(de)安裝(zhuang)施(shi)工建(jian)(jian)議(yi):1、定(ding)管(guan)道(dao)中線(xian)(xian)(xian)： 施(shi)工前可按(an)設(she)計給定(ding)的(de)中線(xian)(xian)(xian)控制點(dian)(dian)(dian)，在(zai)現(xian)場測設(she)出中線(xian)(xian)(xian)的(de)起(qi)(qi)點(dian)(dian)(dian)、終點(dian)(dian)(dian)、平面 點(dian)(dian)(dian)、縱向(xiang)點(dian)(dian)(dian)及直線(xian)(xian)(xian)控制中心樁(zhuang)，并在(zai)起(qi)(qi)點(dian)(dian)(dian)、終點(dian)(dian)(dian)平面點(dian)(dian)(dian)的(de)溝槽外(wai)適(shi)當(dang)位置(zhi)，設(she)置(zhi)方向(xiang)控制樁(zhuang)，并且(qie)通過丈量確定(ding)樁(zhuang)號(hao)。 2、建(jian)(jian)立臨時水(shui)準(zhun)點(dian)(dian)(dian)： 管(guan)道(dao)工程往往需增設(she)臨時水(shui)準(zhun)點(dian)(dian)(dian)，應(ying)在(zai)穩固且(qie)不易被(bei)碰撞處設(she)置(zhi)，其間距(ju)為不大于30米為宜。臨時水(shui)準(zhun)點(dian)(dian)(dian)閉合差應(ying)符合規定(ding)標準(zhun)。
3、溝槽(cao)(cao)開挖(wa)采(cai)(cai)用(yong)(yong)挖(wa)掘機(ji)開挖(wa)為(wei)主，人工(gong)(gong)清底(di)(di)(di)為(wei)輔，雨水(shui)斗連接管(guan)及支管(guan)采(cai)(cai)用(yong)(yong)人工(gong)(gong)開挖(wa)。開挖(wa)過程(cheng)中，注意觀(guan)察(cha)土質變化，對有(you)塌方跡象(xiang)的路段采(cai)(cai)用(yong)(yong)支撐圍(wei)護。 4、挖(wa)掘機(ji)開挖(wa)挖(wa)至槽(cao)(cao)底(di)(di)(di)標高(gao) 10cm左右，預留槽(cao)(cao)底(di)(di)(di)土不挖(wa)，修整槽(cao)(cao)底(di)(di)(di)。人工(gong)(gong)清槽(cao)(cao)，認真檢查(cha)槽(cao)(cao)底(di)(di)(di)土壤有(you)無擾動情況(kuang)，如有(you)擾動應做特殊處理(li)。 5、在溝槽(cao)(cao)兩(liang)側(ce)，槽(cao)(cao)底(di)(di)(di)以上(shang)1米(mi)處，對稱設置高(gao)程(cheng)樁，在其上(shang)釘等(deng)高(gao)的高(gao)程(cheng)釘。在挖(wa)槽(cao)(cao)見底(di)(di)(di)前及澆筑平整前，均應復測管(guan)渠中心線及高(gao)程(cheng)樁的高(gao)程(cheng)。
6、槽邊單(dan)面堆(dui)土(tu)高度不大于(yu)2米(mi)，距溝(gou)槽邊緣距離不小于(yu)1米(mi)。溝(gou)槽施工(gong)地下管線(xian)的(de)保(bao)護先向有關部門(men)要(yao)求管線(xian)交底(di)，以明(ming)確地下設(she)施的(de)基(ji)本(ben)位置，必要(yao)時先開挖樣(yang)洞，以探明(ming)準確位置，利(li)于(yu)施工(gong)，并保(bao)證各種預埋(mai)管線(xian)的(de)安全，施工(gong)過程中(zhong)，對暴(bao)露的(de)管線(xian)采用(yong)支撐保(bao)護措施。
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