预应力混凝土管桩有施工速度快,质量容易保证等特点,现已被广泛采用。预应力混凝土管桩施工主要有起吊、定位、打桩、接桩等主要步骤。施工中也会出现桩头爆裂、桩身裂缝等问题,视破坏情况,可用环氧树脂补强,必要时要将坏桩报废并同时补桩。根据有关规定,预应力管桩必须进行质量抽检,可采用静载、动载等方法。 Prestressed concrete pipe pile construction speed, easy to ensure quality features, has been widely used. Prestressed concrete pipe pile construction mainly lifting, positioning, piling, then pile and other major steps. Construction will also appear burst head, crack cracks and other issues, depending on the destruction of epoxy resin can be used to reinforce, when necessary, to scrap the pile and at the same time make up pile. According to the relevant provisions, prestressed pipe pile must be quality sampling, static load, dynamic load and other methods can be used.