以前我们浇筑设备基础预留孔,采用木板钉成方形空心模,上端略大于下端。当混凝土浇筑后进入终凝时,用手动葫芦将芯模拔出。当深度超过1米时,拆模有时很困难,甚至有时拔不出来。为了避免上述问题,我们在施工中制造了一种非常容易拆除的模具(见图)。采用这种模具施工时,当混凝土浇筑到预留孔底标高时,把事先制作好的模具定位栓埋入基础混凝土内,使它在基础预留孔的设计中心位置。找正后便可继续浇筑混凝土。当混凝 In the past, we used to set a hole in the foundation of the equipment and used a wooden board to nail a square hollow mold with the upper end slightly larger than the lower end. When the concrete is poured into the final setting, the mandrel is pulled out with a manual hoist. When the depth is more than 1 meter, it is sometimes difficult to remove the mold, and sometimes it is impossible to pull it out. In order to avoid the above problems, we made a very easy to remove mold in construction (see figure). When using this kind of mold construction, when the concrete is poured to the reserved hole bottom elevation, the previously prepared mold positioning plug is buried in the foundation concrete so that it is in the design center position of the foundation reserved hole. After the alignment, the concrete can be poured. When coagulation