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在钢筋混凝土结构施工中,往往由于设计变更和施工组织不妥当,造成预留孔偏差,给管道安装等工程带来很大困难。如果按照习惯作法,用人工剔凿扩孔,不但浪费大量人力物力,而且劳动强度很大,工效低,保证不了工期,更主要的是由于在扩孔时冲击力的影响,容易损坏相邻结构,影响建筑物的使用寿命和工程质量。为了解决这个问题,
In the construction of reinforced concrete structures, due to design changes and inappropriate construction organization, deviations in reserved holes are caused, which brings great difficulties to pipeline installation and other projects. If you follow the customary practice, using manual picking and reaming holes not only wastes a lot of manpower and material resources, but also has great labor intensity, low work efficiency, and can not guarantee the construction period. The main reason is that the influence of the impact force during the hole expansion is likely to damage the adjacent structure. , affect the life of the building and the quality of the project. To solve this problem,