袋裝砂井技術交底.doc

交底內容：
1、 本工程袋裝砂井施工部位為非機動車道、人行道、綠化帶和邊坡，井徑為7cm,其施工間距為1米，正方形布置，具體按照技術部門繪制的布樁圖進行布置。
2、 施工機械為導管式振動打樁機；砂袋用聚丙烯編織袋；砂采用滲水率較高的中、粗砂，含泥量不應大于3%。
3、 施工工藝流程如下：
（1）整平原地面（2）攤鋪20cm砂墊層（3）測量放線：用小木樁定出每個樁位，測出砂墊層面高程（4）機具對準樁位（5）打入套管（6）沉入砂袋（7）拔出套管（8）埋砂袋頭
4、 質量要求：
（1） 允許偏差
 

Cards on the table contents:
1, the construction of Sand Wick Road construction sites for non-motor vehicles, sidewalks, green belts, and slope, well diameter of 7cm, the construction of distance is 1 meter square layout, specific technology sectors in accordance with plans drawn to pile layout.
2, construction machinery, pipe vibration pile driver; sand bags PP woven bags; sand with water seepage rates are relatively high, the coarse sand, mud content should not exceed 3%.
3, the construction process is as follows:
(1) The whole plain surface  (2) Paving 20cm sand cushion  (3) measurement and setting: using small wooden blocks set each pile location, measure the level sand pad elevation  (4) Pile  Alignment equipment (5) into the casing  (6) sinking sand bags  (7) pull the tube  (8) head buried in sand bags
4, quality requirements:
(1) Tolerance

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