目前,住宅楼厨房、卫生间的上下水管道穿越楼层,多采取在结构层施工时预留洞口,或在管道安装中现场凿洞然后再补洞的方法。这两种做法存在预留洞口位置不准,现场开凿洞口的大小很难控制,凿洞容易产生人为破坏,补洞费工费料和容易产生渗漏等弊病。针对以上问题,我们在江办省东台市城市建设综合开发总公司商 At present, the upper and lower water pipes of residential buildings kitchens and toilets cross the floors, and more methods are adopted to reserve holes in the construction of the structural layer, or to drill holes in the pipeline installation and then make up holes. These two methods exist in the position of the reserved hole is not allowed, the size of the site to drill the hole is difficult to control, the hole is easy to produce man-made damage, fill the hole and workmanship materials and prone to leakage and other ills. In response to the above problems, we are in the Dongtai City Urban Construction Comprehensive Development Corporation