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卫生间排水设计！有人知晓的吗

浏览：30次 | 提问时间： 07-22 04:51
因为楼层在负一层，只有一个50cm的下水管，怎么设计下水排污系统，才能使用马桶？
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总有一个人能让你保持微笑 07-22 04:52

一、当前常用卫生间排水方式：
1、异层板下排水方式：长期以来，我国卫生间排水设计方案均采用异层板下排水，即将卫生器具的排水管敷设在下层卫生间上部。实际做法是将卫生间内每个器具的排水支管垂直穿楼板后敷设至下层卫生间上部，然后用水平支管将每个卫生器具的排水支管连接起来排至污水立管。在此方式下上层卫生间排水支管均在下层住户卫生间上部，将漏水隐患全部留在了下层住户家里。
2、同层沉箱排水方式：卫生间结构板下沉350mm以上，将卫生洁具排水管道敷设在沉箱内(即结构板上)，然后排至污水立管。待管道敷设完毕后，沉箱采用轻型建筑(粉煤灰、陶粒砼、焦砟等)材料回填至建筑标高，同时沉箱回填层内暗敷设侧排地漏连接至污水透气管。在此方式下，卫生间排水管均在结构板上，与下层住户无关联。
3、同层后排水方式：卫生间结构板下沉50-100mm，地漏采用同层排水专用地漏，座便器采用后排水式，排水水平支管贴墙平行并紧贴地面敷设在板上排至污水立管。由于卫生间下沉尺寸较小，因此水平排水支管属于明敷设，需采用轻质板材将明露的排水管封闭起来，即将墙体距地1m段加厚120mm以达到封闭排水水平支管的目的。此方式卫生间排水管均在板上，同时加厚的墙体部分只有1m高，可以放置饰物，节省不少空间。异层板下排水、同层沉箱排水及同层后排水方式在实际使用中各有利弊，各有自己的适用范围。同层沉箱排水、同层后排水方式的使用范围会越来越广阔，发展前景也明显优于异层板下排水方式。随着给排水行业的迅速发展，还会涌现出很多新型的卫生间排水方式。

时光不及你我眉 07-22 05:00

卫生间的地面标高设计应比室内低20～50mm。地面向地漏处排水坡度一航为2％～3％。

时间以北慕城南 07-22 05:08

卫生间地漏是需要预埋套管的。卫生间预埋防水套管专用于卫生间安装，是为了防止卫生间发生水泄漏专门设计制造的。卫生间排水管穿楼板安装采用传统留洞方法工序多，处理不当容易产生渗漏，使用成品防水套管可在结构施工阶段一次性预埋防水套管，工序简单，固定容易可靠，不易发生位移，防渗漏效果明显。

我愿成你归宿 07-22 05:17

卫生间下沉排水好：
1.便于卫生间的排水布置，在本层作业，不涉及楼下。
2.降低卫生间噪音。
3.顶面平整，没有排水管道。

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