邊溝蓋板安裝施工技術交底記錄.doc

交底內容：
1、邊溝臺帽養護期結束，砼強度達到設計強度的70%后，即可進行蓋板的安裝。
2、蓋板采用場外預制，運輸車運至現場吊裝就位。
3、蓋板吊裝前，應將臺帽頂清理干凈，并提前放線確定每塊板的位置，人孔井的位置尤其應標注準確。蓋板吊裝前，應于臺帽上鋪二氈三油支座，厚度2cm。
4、吊裝采用25t汽車吊進行，應將臺帽上預留的錨栓筋套入蓋板錨栓孔內，注意不得將錨栓碰彎，相鄰兩塊板應對接共用一根錨栓。
5、檢查井蓋板吊裝時，應將井孔放于溝北側，兩塊蓋板組成一個檢查井孔。
6、蓋板安裝安全注意事項：
（1）、蓋板安裝前，應檢查蓋板的吊環是否牢固，有無斷裂現象。
（2）、蓋板吊裝前，鋼絲繩應連接牢固。
（3）、蓋板吊起后，人員嚴禁站在蓋板及吊車吊臂下，以防發生意外。
7、蓋板安裝允許偏差：
      順橋縱軸線方向      10mm
      垂直橋縱軸線方向    5mm
      
       
Cards on the table contents:
1, ditches Taiwan cap maintenance period is over, the design strength of concrete strength was 70%, you can to cover the installation.
2, cover with off-site prefabricated, transported to the site hoisting truck.
3, cover before lifting should be criminal to clean up Taiwan, and early pay-off to determine the location of each plate, one hole in particular, should mark the location of wells and accurate. Cover lifting, should be capped with two felt hats in Taiwan, three oil bearing, the thickness of 2cm.
4, 25t mobile crane used for hoisting, the cap should be reserved for Taiwan bars set into the cover bolt anchor bolt hole, pay attention to not touch the anchor bend, adjacent to the two boards should then share a bolt.
5, plate lifting manhole covers, the borehole should be placed in the north ditch, two Manhole cover up a hole.
6, cover installation of the safety precautions:
(1), cover before installation, check the cover of the rings are solid, with or without breaking.
(2), before lifting cover, wire should be connected firmly.
(3), cover lift, the staff is strictly prohibited and the cable car crane standing under cover, to prevent accidents.
7, cover installation tolerances:
      Vertical line along the direction of the bridge 10mm
      The vertical axis line direction of the bridge 5mm 
       
        
 

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