廠區(qū)消防給水管道施工方案

廠區(qū)消防給水管道施工方案 44.施工準(zhǔn)備： 5 6 8 1.1、工程名稱：陽泉煤業(yè)（集團）有限責(zé)任公司西上莊2×660MW低熱值1.4、陽泉煤業(yè)（集團）有限責(zé)任公司西上莊2×660MW低熱值煤發(fā)電項目工程的廠址，位于陽泉市區(qū)平坦鎮(zhèn)西南方向直線距離約13.6k耕地及部分荒地。廠址區(qū)域面積可滿足本工程2×660MW間接空冷發(fā)電廠的布2.2、《給水排水管道工程施工及驗收規(guī)3.5、閥門井的砌筑參見《給水排水標(biāo)準(zhǔn)圖集》05S502-26；消火栓井的砌3.9、未盡事宜按《給水排水管道工程施工及驗收時每隔20米設(shè)置中心線標(biāo)志樁。人指揮，以免破壞其它已建構(gòu)筑物或設(shè)施，距管溝下部20cm范圍以內(nèi)采用人平穩(wěn)，各吊點應(yīng)協(xié)調(diào)一致，不得使管道產(chǎn)生7.7.4檢查方法用環(huán)刀法檢查或采用現(xiàn)行國家標(biāo)準(zhǔn)《土工試驗方法標(biāo)準(zhǔn)》a.澆筑前，鋼筋、模板應(yīng)檢驗合格，采用設(shè)免機器在滾槽時震動而影響壓槽質(zhì)量,根據(jù)管子大小調(diào)節(jié)好支架,保證機器9.2.1、用切管機將鋼管按所需長度切斷。切口應(yīng)與管中心垂直,切口平9.2.2、將需滾槽加工的鋼管放置在滾槽機下滾輪和鋼管支承尾架上,支壁,均勻滾壓鋼管,直至達到預(yù)先設(shè)定的溝槽深度(見圖2)為止。規(guī)格密封面溝槽寬槽底直徑C溝槽深最小壁厚管端張口公稱直徑實際外徑OD公差A(yù)B標(biāo)準(zhǔn)公差D（參考）TF2026.7+0.25-0.2515.887.1423.83-0.3829.23/41.050+0.010-0.0100.6250.2810.938-0.0150.0560.0652533.4+0.33-0.6815.887.1430.23-0.3834.511.315+0.013-0.0270.6250.2811.190-0.0150.0630.06542.4+0.41-0.6015.887.1438.99-0.3845.01.660+0.016-0.0240.6250.2811.535-0.0150.0630.0654048.3+0.48-0.5215.887.1445.09-0.3851.11.900+0.019-0.0200.6250.2811.775-0.0150.0630.0652.01OD57.0+0.61-0.6115.888.7453.85-0.3859.72.250+0.024-0.0240.6250.3442.120-0.0150.0630.0652.3560.3+0.61-0.6115.888.7457.15-0.3863.022.375+0.024-0.0240.6250.3442.250-0.0150.0630.0652.486573.0+0.74-0.7415.888.7469.09-0.462.1175.72.875+0.029-0.0290.6250.3442.720-0.0180.0780.0832.986576.1+0.76-0.7615.888.7472.26-0.462.1178.73.000+0.030-0.0300.6250.3442.845-0.0180.0780.0833.108088.9+0.89-0.7915.888.7484.94-0.462.1191.433.500+0.035-0.0310.6250.3443.344-0.0180.0780.0833.6090101.64.000+1.02+0.040-0.79-0.03115.880.6258.740.34497.383.834-0.51-0.0202.110.0832.110.083104.14.10OD108.04.262+1.09+0.043-0.79-0.03115.880.6258.740.344103.734.084-0.51-0.0202.110.0832.110.083110.54.354114.34.500+1.14+0.045-0.79-0.03115.880.6258.740.344110.084.334-0.51-0.0202.110.0832.110.083116.84.60127.05.000+1.27+0.050-0.79-0.03115.880.6258.740.344122.784.834-0.51-0.0202.110.0832.410.095129.55.10OD133.05.250+1.35+0.053-0.79-0.03115.880.6258.740.344129.135.084-0.51-0.0202.110.0832.770.109135.95.35OD139.75.500+1.42+0.056-0.79-0.03115.880.6258.740.344135.485.334-0.51-0.0202.110.0832.770.109142.25.605141.35.563+1.42+0.056-0.79-0.03115.880.6258.740.344137.035.395-0.51-0.0202.110.0832.770.109143.85.66OD159.06.260+1.60+0.063-0.79-0.03115.880.6258.740.344154.686.090-0.56-0.0222.160.0852.770.109161.36.35OD165.16.500+1.60+0.063-0.79-0.03115.880.6258.740.344160.786.330-0.56-0.0222.160.0852.770.109167.66.606168.36.626+1.60+0.063-0.79-0.03115.880.6258.740.344163.966.455-0.56-0.0222.160.0852.770.109170.96.732008203.28.000+1.60+0.063-0.79-0.03119.050.75011.910.469198.537.816-0.64-0.0252.340.0922.770.109207.58.17200A8216.38.500+1.60+0.063-0.79-0.03119.050.75011.910.469211.618.331-0.64-0.0252.340.0922.770.109220.78.692008219.18.626+1.60+0.063-0.79-0.03119.050.75011.910.469214.408.441-0.64-0.0252.340.0922.770.109223.58.80250A267.4+1.60-0.7919.0511.91262.6-0.692.393.40271.810.500+0.063-0.0310.7500.46910.339-0.0270.0940.13410.70250273.0+1.60-0.7919.0511.91268.28-0.692.393.40277.410.750+0.063-0.0310.7500.46910.562-0.0270.0940.13410.92300318.4+1.60-0.7919.0511.91312.90-0.692.773.96322.812.500+0.063-0.0310.7500.46912.319-0.0270.1090.15612.71300323.9+1.60-0.7919.0511.91318.29-0.692.773.96328.212.750+0.063-0.0310.7500.46912.531-0.0270.1090.15612.929.2.5、轉(zhuǎn)動卸壓螺絲,將液壓泵卸壓,使上軋輥上升離開鋼管溝槽,卸下9.3.1、安裝前應(yīng)對鋼管端部進行檢查。消除毛刺及有可能影響密封的地9.3.2、在密封圈的唇部、側(cè)部及背部均勻涂上潤9.3.3、先將密封圈套上一根鋼管的密封位置,然后將另一根鋼管對齊,把密封圈套上。使密封圈位于兩管接口的中間位置,兩管端間隙應(yīng)符合標(biāo)準(zhǔn)否安裝牢固、可靠。確認(rèn)合格后即可進行試壓。當(dāng)管道內(nèi)充滿介質(zhì)、有壓力10.3、鋼管壓槽時應(yīng)緩緩用力，用力過猛容易造成鋼管末端出現(xiàn)喇叭口。10.4、在安裝過程中應(yīng)注意管道在壓力、溫度及施工等方面產(chǎn)生的管道位11.2、管溝開挖前，正確使用安全工具和安全標(biāo)志，做好安全圍護工作，11.4、進入