長春水泥管的安裝施(shi)工建(jian)議(yi):1、定(ding)管(guan)(guan)道中(zhong)(zhong)線(xian)(xian): 施(shi)工前(qian)可按設(she)(she)計給(gei)定(ding)的中(zhong)(zhong)線(xian)(xian)控制(zhi)點(dian),在現場測設(she)(she)出中(zhong)(zhong)線(xian)(xian)的起點(dian)、終點(dian)、平面(mian) 點(dian)、縱(zong)向(xiang)點(dian)及直線(xian)(xian)控制(zhi)中(zhong)(zhong)心樁(zhuang)(zhuang),并在起點(dian)、終點(dian)平面(mian)點(dian)的溝槽(cao)外(wai)適當位置,設(she)(she)置方向(xiang)控制(zhi)樁(zhuang)(zhuang),并且(qie)通(tong)過丈量確(que)定(ding)樁(zhuang)(zhuang)號。 2、建(jian)立臨時(shi)水(shui)準(zhun)點(dian): 管(guan)(guan)道工程往往需增設(she)(she)臨時(shi)水(shui)準(zhun)點(dian),應在穩固且(qie)不(bu)易被碰撞(zhuang)處設(she)(she)置,其間距為不(bu)大于30米為宜。臨時(shi)水(shui)準(zhun)點(dian)閉(bi)合差應符合規定(ding)標準(zhun)。
3、溝(gou)(gou)槽(cao)(cao)開(kai)(kai)(kai)挖(wa)(wa)(wa)(wa)(wa)(wa)采(cai)用挖(wa)(wa)(wa)(wa)(wa)(wa)掘機開(kai)(kai)(kai)挖(wa)(wa)(wa)(wa)(wa)(wa)為(wei)主,人工清底(di)為(wei)輔,雨水斗連接(jie)管及支管采(cai)用人工開(kai)(kai)(kai)挖(wa)(wa)(wa)(wa)(wa)(wa)。開(kai)(kai)(kai)挖(wa)(wa)(wa)(wa)(wa)(wa)過(guo)程(cheng)(cheng)中(zhong),注意觀(guan)察(cha)土質變化,對(dui)有(you)塌方跡(ji)象(xiang)的(de)路段采(cai)用支撐(cheng)圍護。 4、挖(wa)(wa)(wa)(wa)(wa)(wa)掘機開(kai)(kai)(kai)挖(wa)(wa)(wa)(wa)(wa)(wa)挖(wa)(wa)(wa)(wa)(wa)(wa)至槽(cao)(cao)底(di)標高 10cm左(zuo)右,預留槽(cao)(cao)底(di)土不挖(wa)(wa)(wa)(wa)(wa)(wa),修(xiu)整槽(cao)(cao)底(di)。人工清槽(cao)(cao),認真檢查槽(cao)(cao)底(di)土壤有(you)無擾動(dong)(dong)情況,如有(you)擾動(dong)(dong)應(ying)(ying)做特(te)殊(shu)處(chu)理。 5、在溝(gou)(gou)槽(cao)(cao)兩(liang)側,槽(cao)(cao)底(di)以(yi)上(shang)1米處(chu),對(dui)稱設置高程(cheng)(cheng)樁,在其上(shang)釘等(deng)高的(de)高程(cheng)(cheng)釘。在挖(wa)(wa)(wa)(wa)(wa)(wa)槽(cao)(cao)見底(di)前(qian)及澆筑平(ping)整前(qian),均應(ying)(ying)復測管渠中(zhong)心線及高程(cheng)(cheng)樁的(de)高程(cheng)(cheng)。
6、槽邊單面堆土(tu)高度不(bu)大于(yu)2米,距(ju)溝槽邊緣距(ju)離不(bu)小于(yu)1米。溝槽施工(gong)地(di)下管線(xian)(xian)的(de)保護先向有關部門要(yao)求管線(xian)(xian)交底,以明確(que)地(di)下設施的(de)基本位置(zhi),必(bi)要(yao)時先開挖樣洞,以探明準確(que)位置(zhi),利于(yu)施工(gong),并保證各種(zhong)預埋(mai)管線(xian)(xian)的(de)安全,施工(gong)過程中(zhong),對暴露的(de)管線(xian)(xian)采(cai)用支撐保護措施。
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