Table 10 Cement-fly ash slurry mixture ratio meeting the strength performance conditions of grouting curtain in Zhuxianzhuang Coal Mine.
Water–solid ratio | Fly ash content | Suitable grouting horizon |
|---|---|---|
3 | 30% | The third aquiclude related to the vertical drilling section, the third aquiclude related to the fourth water-bearing vertical drilling section and the fourth aquifer |
2 | 20%, 30%, 40%, 50% | |
1 | 20%, 30%, 40%, 50%, 60% | |
0.8 | 20%, 30%, 40%, 50%, 60% | |
0.6 | 20%, 30%, 40%, 50%, 60% | |
2 | 20%, 30%, 40% | The fifth aquifer involved in the vertical drilling section and the stratum involved in the horizontal drilling section |
1 | 20%, 30%, 40%, 50% | |
0.8 | 20%, 30%, 40%, 50% | |
0.6 | 20%, 30%, 40%, 50%, 60% |
