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阅读1998年第9期《建筑工人》的《厕所地面预留孔位置快速确定法》一文后,我觉得还不是最简便的方法,精确度也稍差。我在施工中采用的是线坠垂线倒定中法,具体作法如下。1.在二层现浇板钢筋绑扎后,将轴线投测到该层现浇板上,根据设计要求.用直角坐标法放出预留孔套管的位置,用电弧焊将相应规格的套管与现浇板钢筋固定牢固。二层现浇板底模支撑应
After reading the article “A Quick Method for Determining the Location of Reserved Ground in Restroom” issued by Construction Workers in No. 9 of 1998, I think this is not the easiest method and the accuracy is also somewhat poor. I used in the construction of the wire falling vertical line in France, the specific practices are as follows. 1. After the second floor cast-in-place rebar lashing, the axis of cast to the level cast on the floor, according to design requirements with Cartesian coordinate method to release the location of the hole hole casing, arc welding will be the appropriate size casing And pouring plate steel fixed firmly. The second floor cast-in-place mold support should be