市政雨水管道需要做些什么试验

2024年11月23日 17:21
有4个网友回答
网友(1):

一般市政雨水管道需要做闭水实验。试验从上游往下游分段进行,上游试验完毕后,可往下游充水,倒段试验以节约用水。

将试验管段灌满水后,开始记录。试验水头达规定水头时开始计时,观测管道的渗水量,直至观测结束时,应不断地向试验管道内补水,保持试验水头恒定。渗水观测时间不得少于30分钟;根据井内水面的下降值计算渗水量,渗水量不超过规定的允许渗水量即为合格。

扩展资料

对于污水管道,按照市政施工规程要求,必须在回填前做闭水试验。闭水试验前,施工现场应具备以下条件:

(1)管道及检查井的外观质量及“量测”检验均已合格。

(2)管道两端的管堵(砖砌筑)应封堵严密、牢固,下游管堵设置放水管和截门,管堵经核算可以承受压力。

(3)现场的水源满足闭水需要,不影响其他用水。

(4)选好排放水的位置,不得影响周围环境。

网友(2):

材料试验:水泥、碎石、砂、钢筋等原材料检测,配合比及砼检测。管材检测。
闭水试验:管道完成后进行闭水试验,但一般雨水管不进行闭水试验,污水管是要求闭水试验的。雨水管因为对土层无污染危害所以一般也没有要求闭水试验。

网友(3):

补充一楼,雨水管道现已要求全线闭水,可能有的地方还没实施

网友(4):

[案例实操-施工视频]146闭水试验和雨水管道施工

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