求助,灌注桩混凝土建筑记录如何填写

2025年04月08日 09:25
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网友(1):

混凝土灌注桩工程检验批质量验收记录的内容如下:
一般项目:
1、垂直度。除人工挖孔混凝土护壁桩为<0.5%;其它桩为<1%。检查套筒、钻杆的垂直度或吊垂球检查。
2、桩径。套管成孔、干成孔的桩径为-20mm;泥浆护壁钻孔为+50mm;人工挖孔为+50mm。用井径仪、尺量检查。
3、泥浆比重(粘土、砂性土中)。1.15~1.20。用比重计测量。
4、泥浆面标高(高于地下水位)。0.5~1.0m。观察检查
5、沉渣厚度:端承桩≤50mm。用沉渣仪或吊锤测量。
磨擦桩≤150mm。用沉渣仪或吊锤测量。
6、混凝土坍落度:水下灌注160~220mm,灌注前坍落度仪测量。
干施工70~100mm。灌注前坍落度仪测量。
7、钢筋笼安装深度:±100mm,尺量检查。
8、混凝土充盈系数:>1。计量检查每根桩的实际灌注量与桩体积相比。
9、桩顶标高:+30mm,-50mm。水准仪测量。扣除桩顶浮浆层及劣质桩体。
施工前检查水泥、砂、石子(现场搅拌时),按表格验收钢筋笼。施工中检查成孔、清渣、放置钢筋笼、灌注混凝土。人工挖孔桩孔底持力层土(岩)性。检查嵌岩桩桩端持力层的岩性。施工结束后观察混凝土强度、桩体质量及承载力。检查后形成施工记录或检验报告。检查施工记录和检验报告。

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