Table 3 Measured values and improvement ratios of ultimate bearing capacity, total side resistance, and base resistance for individual piles.

From: Model test study on the vertical bearing performance of post-grouted piles based on different grouting materials

Pile type

Ultimate bearing capacity /N

Tip resistance /N

Total side resistance /N

Improvement ratio of total side resistance %

Improvement ratio of base resistance /%

Ungrouted pile

1764

246

(13.95)

1518

–

–

Geopolymer grouted pile

3504

304

(8.68)

3200

110.80

23.58

Fly ash–cement grouted pile

4088

537

(13.14)

3551

133.93

118.29

Cement grouted pile

5840

323

(5.53)

5517

263.44

31.30

Cement-sodium silicate grouted pile

8760

570

(6.51)

8190

439.58

131.71