DB33-T1012-2021······1

1 總則······9

2 術(shù)語和符號(hào)······10

2.1 術(shù)語······10

2.2 符號(hào)······10

3 勘察······14

4 設(shè)計(jì)······15

4.1 一般規(guī)定······15

4.2 支和盤布置······16

4.3 計(jì)算······17

4.4 構(gòu)造······23

5 施工······25

5.1 一般規(guī)定······25

5.2 樁身成孔······25

5.3 支盤擠擴(kuò)······27

5.4 成樁······29

6 驗(yàn)收······31

6.1 一般規(guī)定······31

6.2 主控項(xiàng)目······31

6.3 一般項(xiàng)目······32

附錄A 單樁幾何參數(shù)及樁身豎向抗壓承載力······34

附錄B 支盤樁豎向承載土層阻力特征值······35

附錄C 支盤樁施工工藝流程······37

附錄D 土層物理力學(xué)指標(biāo)與擠擴(kuò)首壓參考值······38

附錄E 支盤樁施工記錄表······39

附錄F 盤腔直徑檢測(cè)方法······40

附錄G 支盤樁施工質(zhì)量檢驗(yàn)標(biāo)準(zhǔn)······42

附錄H 支盤樁檢驗(yàn)批質(zhì)量驗(yàn)收記錄······44

本規(guī)程用詞說明······46

引用標(biāo)準(zhǔn)名錄······47