土方开挖与回填土施工方案

目 录

一、编 制 依 据 ································································································································ 2

二、工 程 概 况 ································································································································ 2

三、基坑内土层及地下水情况 ·········································································································· 3

四、工程特点、难点 ·························································································································· 4

五、土方开挖方案 ······························································································································ 5

1、现场准备工作： .............................................................................................................. 5

2、基坑周边及基坑内排水措施 .............................................................................................. 5

3、基础测量定位 ...................................................................................................................... 6

4、施工人员及材料设备的准备 .............................................................................................. 6

5、施工用电及施工照明的准备 .............................................................................................. 6

六、土方回填方案 ···························································································································· 15

1、 土料要求与含水量控制 .................................................................................................. 15

2、基底处理 ............................................................................................................................ 16

3、 压实的一般要求 .............................................................................................................. 16

4、质量控制与检验 ................................................................................................................ 16

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