China Safety Science Journal ›› 2025, Vol. 35 ›› Issue (S1): 114-121.doi: 10.16265/j.cnki.issn1003-3033.2025.S1.0018
• Safety engineering technology • Previous Articles Next Articles
CHEN Kai1(), YU Mingsheng1, LIU Long1, WANG Shuai1, ZHANG Zilong1, WU Pengfei2, ZHANG Haoran2
Received:
2025-02-14
Revised:
2025-04-07
Online:
2025-06-30
Published:
2025-12-30
CLC Number:
CHEN Kai, YU Mingsheng, LIU Long, WANG Shuai, ZHANG Zilong, WU Pengfei, ZHANG Haoran. Research on safety prevention and control technology of surrounding rock deformation in roadways based on jet grouting self-filling process[J]. China Safety Science Journal, 2025, 35(S1): 114-121.
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URL: http://www.cssjj.com.cn/EN/10.16265/j.cnki.issn1003-3033.2025.S1.0018
Table 1
Chemical composition and physical properties of cement, fly ash and iron tailing
物质 wt/% | CaO | SiO2 | Al2O3 | Fe2O3 | SO3 | MgO | 其他 氧化物 | 灼烧损失 | 表观密度/ (g·cm-3) | 比表面积/ (m2·kg-1) |
---|---|---|---|---|---|---|---|---|---|---|
水泥 | 62.80 | 20.60 | 4.13 | 2.99 | 2.56 | 1.93 | 3.93 | 1.06 | 3.10 | 338 |
尾砂 | 7.31 | 47.56 | 7.12 | 24.65 | — | 5.42 | 7.13 | 0.81 | 2.67 | 55 |
飞灰 | 4.19 | 58.76 | 11.66 | 4.50 | 1.28 | 3.24 | 9.48 | 6.89 | 2.46 | 498 |
Table 2
Mix proportion of grouting material
样品 编号 | 固体质量 分数/% | 水胶比 | 水/g | 水泥/ g | 尾砂/ g | 飞灰/ g |
---|---|---|---|---|---|---|
S65W6 | 65 | 0.6 | 1 200 | 1 200 | 229 | 800 |
S65W7 | 65 | 0.7 | 1 200 | 1 028 | 515 | 686 |
S65W8 | 65 | 0.8 | 1 200 | 900 | 729 | 600 |
S65W9 | 65 | 0.9 | 1 200 | 800 | 896 | 533 |
S75W6 | 75 | 0.6 | 1 200 | 1 200 | 1 600 | 800 |
S75W7 | 75 | 0.7 | 1 200 | 1 028 | 1 886 | 686 |
S75W8 | 75 | 0.8 | 1 200 | 900 | 2 100 | 600 |
S75W9 | 75 | 0.9 | 1 200 | 800 | 2 267 | 533 |
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