長春水泥管的(de)安裝施(shi)工(gong)(gong)建議:1、定管道中(zhong)線: 施(shi)工(gong)(gong)前可(ke)按設計給(gei)定的(de)中(zhong)線控制點(dian)(dian)(dian),在現場測(ce)設出中(zhong)線的(de)起點(dian)(dian)(dian)、終點(dian)(dian)(dian)、平面(mian) 點(dian)(dian)(dian)、縱向(xiang)(xiang)點(dian)(dian)(dian)及直線控制中(zhong)心樁,并在起點(dian)(dian)(dian)、終點(dian)(dian)(dian)平面(mian)點(dian)(dian)(dian)的(de)溝槽外適當(dang)位置,設置方向(xiang)(xiang)控制樁,并且通過丈量確定樁號。 2、建立臨時(shi)(shi)(shi)水(shui)準(zhun)(zhun)點(dian)(dian)(dian): 管道工(gong)(gong)程(cheng)往往需增(zeng)設臨時(shi)(shi)(shi)水(shui)準(zhun)(zhun)點(dian)(dian)(dian),應(ying)在穩固且不(bu)(bu)易被碰(peng)撞處設置,其間(jian)距為(wei)不(bu)(bu)大(da)于30米為(wei)宜。臨時(shi)(shi)(shi)水(shui)準(zhun)(zhun)點(dian)(dian)(dian)閉合差應(ying)符合規定標準(zhun)(zhun)。
3、溝槽(cao)開挖(wa)(wa)采用(yong)挖(wa)(wa)掘(jue)機開挖(wa)(wa)為主,人(ren)(ren)工清(qing)底為輔,雨水斗連接(jie)管及支管采用(yong)人(ren)(ren)工開挖(wa)(wa)。開挖(wa)(wa)過程(cheng)(cheng)中,注意(yi)觀察土(tu)質變化(hua),對(dui)(dui)有(you)(you)塌方跡象的路段采用(yong)支撐圍(wei)護。 4、挖(wa)(wa)掘(jue)機開挖(wa)(wa)挖(wa)(wa)至(zhi)槽(cao)底標高 10cm左右,預留槽(cao)底土(tu)不挖(wa)(wa),修整(zheng)槽(cao)底。人(ren)(ren)工清(qing)槽(cao),認真(zhen)檢查槽(cao)底土(tu)壤有(you)(you)無(wu)擾(rao)動情況,如有(you)(you)擾(rao)動應做特殊處理。 5、在(zai)溝槽(cao)兩(liang)側,槽(cao)底以上(shang)1米(mi)處,對(dui)(dui)稱(cheng)設置高程(cheng)(cheng)樁,在(zai)其上(shang)釘等高的高程(cheng)(cheng)釘。在(zai)挖(wa)(wa)槽(cao)見底前(qian)及澆筑平整(zheng)前(qian),均應復(fu)測管渠中心線及高程(cheng)(cheng)樁的高程(cheng)(cheng)。
6、槽(cao)邊單面堆土高度不(bu)大于(yu)(yu)2米,距(ju)溝槽(cao)邊緣距(ju)離不(bu)小于(yu)(yu)1米。溝槽(cao)施工(gong)地(di)下(xia)管(guan)線(xian)的(de)保(bao)(bao)(bao)護(hu)先(xian)向有關(guan)部門要(yao)求(qiu)管(guan)線(xian)交底,以(yi)明(ming)確地(di)下(xia)設施的(de)基本位置(zhi),必(bi)要(yao)時(shi)先(xian)開挖(wa)樣洞,以(yi)探明(ming)準確位置(zhi),利于(yu)(yu)施工(gong),并保(bao)(bao)(bao)證各種預埋管(guan)線(xian)的(de)安全,施工(gong)過(guo)程中(zhong),對暴露的(de)管(guan)線(xian)采用(yong)支撐保(bao)(bao)(bao)護(hu)措(cuo)施。
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