長春水泥管的(de)(de)安裝施工(gong)建議:1、定管道(dao)中線: 施工(gong)前(qian)可(ke)按設(she)計給定的(de)(de)中線控制(zhi)點(dian)(dian)(dian)(dian),在現場(chang)測(ce)設(she)出中線的(de)(de)起點(dian)(dian)(dian)(dian)、終點(dian)(dian)(dian)(dian)、平(ping)面 點(dian)(dian)(dian)(dian)、縱向(xiang)點(dian)(dian)(dian)(dian)及(ji)直線控制(zhi)中心樁(zhuang),并在起點(dian)(dian)(dian)(dian)、終點(dian)(dian)(dian)(dian)平(ping)面點(dian)(dian)(dian)(dian)的(de)(de)溝(gou)槽外適當(dang)位(wei)置(zhi),設(she)置(zhi)方向(xiang)控制(zhi)樁(zhuang),并且(qie)通過(guo)丈(zhang)量(liang)確定樁(zhuang)號。 2、建立臨時水準點(dian)(dian)(dian)(dian): 管道(dao)工(gong)程往(wang)往(wang)需(xu)增設(she)臨時水準點(dian)(dian)(dian)(dian),應(ying)在穩固(gu)且(qie)不易(yi)被碰撞處(chu)設(she)置(zhi),其間距為不大于30米為宜。臨時水準點(dian)(dian)(dian)(dian)閉合差應(ying)符(fu)合規(gui)定標準。
3、溝槽(cao)(cao)(cao)開(kai)挖(wa)(wa)(wa)采用(yong)挖(wa)(wa)(wa)掘(jue)機開(kai)挖(wa)(wa)(wa)為主,人(ren)工(gong)清(qing)底(di)為輔(fu),雨水斗連接(jie)管及(ji)支管采用(yong)人(ren)工(gong)開(kai)挖(wa)(wa)(wa)。開(kai)挖(wa)(wa)(wa)過程中,注意觀察土質(zhi)變化,對有(you)塌方跡(ji)象的(de)路(lu)段(duan)采用(yong)支撐(cheng)圍護。 4、挖(wa)(wa)(wa)掘(jue)機開(kai)挖(wa)(wa)(wa)挖(wa)(wa)(wa)至槽(cao)(cao)(cao)底(di)標(biao)高(gao) 10cm左右,預留槽(cao)(cao)(cao)底(di)土不挖(wa)(wa)(wa),修整(zheng)槽(cao)(cao)(cao)底(di)。人(ren)工(gong)清(qing)槽(cao)(cao)(cao),認真(zhen)檢查槽(cao)(cao)(cao)底(di)土壤有(you)無擾動情況,如有(you)擾動應做特殊處理。 5、在(zai)溝槽(cao)(cao)(cao)兩側,槽(cao)(cao)(cao)底(di)以(yi)上1米(mi)處,對稱(cheng)設置高(gao)程樁,在(zai)其上釘等高(gao)的(de)高(gao)程釘。在(zai)挖(wa)(wa)(wa)槽(cao)(cao)(cao)見(jian)底(di)前及(ji)澆筑平整(zheng)前,均應復測管渠中心線(xian)及(ji)高(gao)程樁的(de)高(gao)程。
6、槽邊(bian)單面(mian)堆土高(gao)度不大于(yu)2米,距溝槽邊(bian)緣距離不小(xiao)于(yu)1米。溝槽施(shi)工地下管(guan)線(xian)(xian)(xian)的保護(hu)先向有關部門要求管(guan)線(xian)(xian)(xian)交(jiao)底,以(yi)明(ming)確地下設施(shi)的基本位置,必要時先開挖(wa)樣(yang)洞,以(yi)探明(ming)準確位置,利于(yu)施(shi)工,并保證各種預埋管(guan)線(xian)(xian)(xian)的安全,施(shi)工過程中,對暴露的管(guan)線(xian)(xian)(xian)采用支撐(cheng)保護(hu)措施(shi)。
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