According to the project practice, the paper introduces raw material, construction program and the technology of prestressed concrete penetration, stretch and grout.

• 结合工程实践,对现浇后张法有粘结预应力混凝土环梁施工中原材料、工工序、应力筋穿束、张拉程序、浆等关键技术作了重点介绍。