我厂因增加和更换生产设备,需做设备基础并预留孔洞。当混凝土浇灌2～4小时后拆除孔洞的模板时,在0.5米深以内的预留孔洞,采用压杠起模即可。但深度超过0.5米时,尽管模板刨光,刷隔离剂,起模时仍十分困难,材料浪费较大,而且极易发生质量事故。我单位在设备基础施工中,对深度在0.5米以上的预留孔,设计并制作 Because of the increase and replacement of production equipment, our factory needs to make equipment foundation and reserve holes. When the concrete is removed from the hole’s template after 2 to 4 hours of pouring, the reserved hole in the depth of 0.5m or less can be removed from the hole with a pressure bar. However, when the depth is more than 0.5 meters, despite the fact that the stencil is planed and brush isolating agent is used, it is still very difficult to die-out, materials are wasted, and quality accidents are easily caused. In the foundation construction of the equipment, our company designs and builds a reserved hole with a depth of 0.5 meters or more.