混凝土基础工程中安装的地脚螺丝,过去资本主义国家的方法,都是在浇灌混凝土时,留出基础眼孔,等到设备安装时,再上好地脚螺丝,做二次灌浆。这种做法,不但造成设备安装时操作上的困难,而且大大地削弱了地脚螺丝与混凝土的粘结力,降低了地脚螺丝应有的抗震强度,并相对地增加了工程成本。因此如何改进安装地脚螺的施工方法是值 The foundation screws installed in the concrete foundation works and the methods in the past capitalist countries all set aside the basic eye when pouring the concrete. When the equipment was installed, the screws of the foundation were screwed up again to make the secondary grouting. This approach not only causes operational difficulties in equipment installation, but also greatly weakens the adhesive force between the ground screw and the concrete, reduces the earthquake resistance strength of the ground screw and increases the construction cost relatively. Therefore, how to improve the construction method of installing the anchor is worth