DB62T25-3118-2016······1

1 總則······8

2 術語和符號······9

2.1 術語······9

2.2 符號······10

3 基本規定······12

4 設計······13

4.1 處理范圍與要求······13

4.2 有關設計參數······13

4.3 孔填料選擇······16

4.4 墊層設置······16

4.5 擠密地基的效果評價······17

4.6 多樁型復合地基······17

4.7 地基土增濕······17

5 施工······19

5.1 施工準備······19

5.2 填料······21

5.3 沉管擠密與柱錘沖擴擠密施工······21

5.4 預鉆孔夯擴擠密施工······23

5.5 墊層施工······25

5.6 冬、雨期施工······25

6 檢驗與驗收······27

6.1 質量檢驗······27

6.2 工程驗收······29

附錄A 沉管（或預鉆孔夯擴）擠密成孔施工記錄······31

附錄B 沉管擠密夯填施工記錄······32

附錄C 預鉆孔夯擴擠密夯填施工記錄······33

附錄D 孔內小環刀取樣器簡圖······34

本規程用詞說明······35

引用標準名錄······36

附：條文說明······37

1 總則······39

2 術語和符號······41

3 基本規定······43

4 設計······45

4.1 處理范圍與要求······45

4.2 有關設計參數······45

4.3 孔填料選擇······49

4.4 墊層設置······50

4.5 擠密地基的效果評價······50

4.7 地基土增濕······50

5 施工······52

5.1 施工準備······52

5.2 填料······52

5.3 沉管擠密與柱錘沖擴擠密施工······52

5.4 預鉆孔夯擴擠密施工······53

6 檢驗與驗收······54

6.1 質量檢驗······54