为了保证设备基础中预埋螺栓位置准确,我们采用“四步控制法”施工,颇具成效,现以图1的预埋螺栓布置为例,分别介绍该法于下。一、成孔控制取一块厚8mm 的钢板,按预埋螺栓平面布置图,准确地际出各螺栓孔的位置,然后加工成如图2所示形状的模板,并在模板上标 In order to ensure the accurate location of pre-embedded bolts in the equipment foundation, we have adopted the “four-step control method” for construction, which is quite effective. Now we take the pre-embedded bolt arrangement in Figure 1 as an example and introduce the method separately. First, the hole control to take a piece of 8mm thick steel plate, according to the pre-embedded bolt plane layout, accurate position of the bolt holes, and then processed into a template as shown in Figure 2, and in the template on