預應力混凝土管樁施工介紹.rar

，質量容易保證等特點，在立交橋、城市高架橋中廣泛采用，上海地區尤其是這樣。
  預應力混凝土管樁施工主要有起吊、定位、打樁、接樁等主要步驟。施工中也會出現樁頭爆裂、樁身裂縫等問題，視破壞情況，可用環氧樹脂補強，必要時要將壞樁報廢并同時補樁。
  根據有關規定，預應力管樁必須進行質量抽檢，可采用靜載、動載等方法。
, Quality assurance and so easy, in the overpass, Viaduct widely used in the Shanghai region in particular.
  Construction of Prestressed Concrete Pipe main lifting, positioning, piling, and other major steps in the pile. Construction will occur in the pile head burst, shaft cracks, depending on the damage, reinforced epoxy resin can be used, if necessary, to bad scrap pile and pile up at the same time.
  Under the provisions of prestressed concrete pipe must be the quality of sampling, can be used static, dynamic load and other methods.

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