電纜溝工程施工方案.doc

（一）電纜溝工程
1、電纜溝的開挖。打鋼板樁。開挖深度為3～４m，故采用槽鋼密扣支護，以利擋土與防水，槽鋼入土深度應大于2.5m。開挖后的基底及時排水，不得受水浸泡，不得超挖，若超挖用碎石填至基底標高。
2、電纜溝的基礎處理。地下導管一般要承受其覆蓋土的荷重和外界附加的荷重，因此對溝的基礎處理應予以高度的重視：本工程采用Φ10的橫向間距為1米，縱向間距為6米的松木樁。松木樁總長6.5米，在其0.5米及其以上部分敷設30cm的10-100KG塊石基床，再在此上敷設200mm厚碎石和100mm厚c15素砼。
3、素砼墊層施工。a.溝槽、碎石經(jīng)驗收合格，即測放墊層中線、邊線及標高。抽干積水后澆筑砼墊層。搗制砼全過程中以及墊層砼終凝前不得中斷排水。b.采用商品砼，嚴格控制砼坍落度，不合格的砼不準使用。c.砼用平板振搗器振至密實，
(A) of the cable channel works
1, cable trench excavation. Beat sheet pile. Excavation depth is 3 ~ 4m, so close button using channel support to facilitate the retaining and waterproof, channel embedded depth should be greater than 2.5m. After the excavation of the basement drainage time shall not be immersed in water shall not exceed dig, if overbreak filled with gravel to the basement level.
2, cable channel based processing. Underground conduit generally have to bear the load of its coverage territory and outside the additional load, so ditch the basis of treatment should be a high priority: This project uses Φ10 horizontal distance of 1 meter vertical distance of 6 meters of pine pile. Pine pile length of 6.5 meters, 0.5 meters in its part of the laying of 30cm and above the 10-100KG rubble foundation and then laying this on 200mm thick and 100mm thick gravel c15 Plain Concrete.
3, Plain Concrete cushion construction. a. trench, gravel and passes, that measure up cushion center line, sidelines, and elevation. After the pouring of concrete drain the water cushion. Trace the entire process of manufacturing concrete and cushion before the final setting of concrete drainage shall not be interrupted. b. using Shangpin Tong, strict control of concrete slump, concrete are not allowed to use unqualified. c. concrete vibrators with a vibrating plate to compact,
 

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