Geomechanics and Engineering

  • 제20권1호
  • /
  • Pages.67-73
  • /
  • 2020
  • /
  • 2005-307X(pISSN)
  • /
  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental study on nano silica modified cement base grouting reinforcement materials

  • Zhou, Fei (College of Mining and Safety Engineering, Shandong University of Science and Technology) ;
  • Sun, Wenbin (Shandong Key Laboratory of Wisdom Mine Information Technology, Shandong University of Science and Technology) ;
  • Shao, Jianli (College of Mining and Safety Engineering, Shandong University of Science and Technology) ;
  • Kong, Lingjun (College of Mining and Safety Engineering, Shandong University of Science and Technology) ;
  • Geng, Xueyu (The University of Warwick Coventry)
  • 투고 : 2019.09.19
  • 심사 : 2019.12.26
  • 발행 : 2020.01.10
⟨ 이전 논문 다음 논문 ⟩

초록

With the increasing number of underground projects, the problem of rock-water coupling catastrophe has increasingly become the focus of safety. Grouting reinforcement is gradually applied in subway, tunnel, bridge reinforcement, coal mine floor and other construction projects. At present, cement-based grouting materials are easy to shrink and have low strength after solidification. In order to overcome the special problems of high water pressure and high in-situ stress in deep part and improve the reinforcement effect. In view of the mining conditions of deep surrounding rock, a new type of cement-based reinforcement material was developed. We analyses the principle and main indexes of floor strengthening, and tests and optimizes the indexes and proportions of the two materials through laboratory tests. Then, observes and compares the microstructures of the optimized floor strengthening materials with those of the traditional strengthening materials through scanning electron microscopy. The test results show that 42.5 Portland cement-based grouting reinforcement material has the advantages of slight expansion, anti-dry-shrinkage, high compressive strength and high density when the water-cement ratio is 0.4, the content of bentonite is 4%, and the content of Nano Silica is 2.5%. The reinforcement effect is better than other traditional grouting reinforcement materials.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, China Postdoctoral Science Foundation, Natural Science Foundation of Shandong Province

This research was financially supported by the National Natural Science Foundation of China (Grant No.51974172), China Postdoctoral Science Foundation (2015M572067), Postdoctoral Innovation Project of Shandong Province (152799), Qingdao Postdoctoral Applied Research Project (2015203), Natural Science Foundation of Shandong Province (ZR2019MEE004)

참고문헌

  1. Alyousef, R., Benjeddou, O., Soussi, C., Khadimallah, M.A. and Mohamed, A.M. (2019), "Effects of incorporation of marble powder obtained by recycling waste sludge and limestone powder on rheology, compressive strength, and durability of self-compacting concrete", Adv. Mater. Sci. Eng. https://doi.org/10.1155/2019/4609353
  2. Cheng, P., Zhao, L.H., Li, Q., Li, L. and Zhang, S.Y. (2019), "Water inflow prediction and grouting design for tunnel considering nonlinear hydraulic conductivity", KSCE J. Civ. Eng., 23(9), 4132-4140. https://doi.org/10.1007/s12205-019-0306-9
  3. Cheng, Z., Pan, W., Li, X. and Sun, W. (2019), "Numerical simulation on strata behaviours of TCCWF influenced by coalrock combined body", Geomech. Eng., 19(3), 269-282. https://doi.org/10.12989/gae.2019.19.3.269.
  4. Feng, B.C. (2012), "Study on anti-dry-shrinkage properties of nano-cement concrete", Transpoworld, 01,156-157. https://doi.org/10.16248/j.cnki.11-3723/u.2012.01.056
  5. Ge, Y.M., Long, W. and Song, H.J. (2018), "Evaluation of the performance of cement based grouting materials", Soil Eng. Found., 32(04), 437-439, 448.
  6. Gong, B., Jiang, Y.J., Okatsu, K., Wu, X.Z., Teduka, J. and Aoki, K. (2018), "The seepage control of the tunnel excavated in highpressure water condition using multiple times grouting method", Processes, 6(9), https://doi.org/10.3390/pr6090159.
  7. Grizelda, D., Kearsley, E.P., Mc Donald, J.M., Kruger, R.A. and van der Merwe, E.M. (2018), "Chemical and mechanical activation of hybrid fly ash cement", Adv. Cem. Res., 30(9), 399-412. https://doi.org/10.1680/jadcr.17.00156.
  8. Guo, D.M., Cheng, Z., Qi, Y.Q. and Xue, L. (2018), "Experiment of performance on water glass-nano silica polyurethane composites injecting paste material", Modern Min., 34(4),157-160, 170.
  9. Kong, D., Cheng, Z. and Zheng, S. (2019), "Study on failure mechanism and stability control measures in large-cuttingheight coal mining face with deep-buried seam", Bull. Eng. Geol. Environ., 78(8), 6143-6157. https://doi.org/10.1007/s10064-019-01523-0.
  10. Li, J.B. (2016), "Study on water inrush mechanism and prevention mechanism of double-high seam floor grouting reinforcement working face", Ph.D. Dissertation, China University of Mining and Technology, Beijing, China.
  11. Liu, X.F., Wang, J.G., Huang, K. and Li, F.Y. (2019), "Experimental study on dynamic water grouting of modified water-soluble polyurethane", KSCE J. Civ. Eng., 32(3), 375-380. https://doi.org/10.1007/s12205-019-0086-2.
  12. Morsy, M.S., Shoukry, H., Mokhtar, M.M., Ali, A.M. and El-Khodary, S.A. (2018), "Facile production of nano-scale metakaolin: An investigation into its effect on compressive strength, pore structure and microstructural characteristics of mortar", Constr. Build. Mater., 172, 243-250. https://doi.org/10.1016/j.conbuildmat.2018.03.249
  13. Ni, H.G., Sun, F.H., Yang, X.Z. and Wang, X.H. (2005), "Experimental study of clay hardening grouts for roadbed reinforcements", Chin. J. Rock Mech. Eng., 24(7), 1242-1247. https://doi.org/10.3321/j.issn:1000-6915.2005.07.027
  14. Packer, M., Newman, R., Prangley, C. and Heath, I. (2018), "Permeation grouting and excavation at Victoria station, London", Proc. Inst. Civ. Eng. Geotech. Eng., 171(3), 267-281. https://doi.org/10.1680/jgeen.17.00115.
  15. Taha, M.R., Alsharef, J.M.A., Khan, T.A., Aziz, M. and Gaber, M. (2018), "Compressive and tensile strength enhancement of soft soils using nanocarbons", Geomech. Eng., 16(5), 559-567. https://doi.org/10.12989/gae.2018.16.5.559.
  16. Samaila, S., Nor Zurairahetty, M.Y., Kamarudin, A. and Nazri, A. (2019), "Improving the strength of weak soil using polyurethane grouts: A review", Constr. Build. Mater., 202, 738-752. https://doi.org/10.1016/j.conbuildmat.2019.01.048
  17. Seo, H., Park, K.H., Kim, C.J., Kim, H.C. and Kim, D. (2019), "Development of reinforcement grout materials using blast furnace slag powder and aramid fiber", J. Kor. Geosynth. Soc., 18(1), 67-77. https://doi.org/10.12814/jkgss.2019.18.1.067.
  18. Song, X.F. (2008), "Composition design of clay cement slurry in coal-seam bed plate consolidation", Proceedings of the 2008 National Mine Construction Conference, Huangshan, Anhui, China, July.
  19. Zhang, G.C., Wen, Z.J. and Liang, S.J. (2019), "Ground response of a gob-side entry in a longwall panel extracting 17 m-thick coal seam: A case study", Rock Mech. Rock Eng., 1-20. https://doi.org/10.1007/s00603-019-01922-5.
  20. Sun, W.B., Du, H.Q., Zhou, F. and Shao, J.L. (2019), "Experimental study of crack propagation of rock-like specimens containing conjugate fractures", Geomech. Eng., 17(4), 323-331. https://doi.org/10.12989/gae.2019.17.4.323.
  21. Sun W.B., Xue Y.C., Li T.T. and Liu W.T. (2019), "Multi-field coupling of water inrush channel formation in a deep mine with a buried fault", Mine Water Environ., 38(3), 528-535. https://doi.org/10.1007/s10230-019-00616-2.
  22. Wang, S., Wang, J.F., Yuan, C.P., Chen, L.Y. Xu, S.T. and Guo, K.B (2018), "Development of the nano-composite cement: Application in regulating grouting in complex ground conditions", J. Mountain Sci., 15(7), 1572-1584. https://doi.org/10.1007/s11629-017-4729-9.
  23. Wang, T., Liu, S.H. and Lu, Y. (2019), "Laboratory experiments on the improvement of rockfill materials with composite grout", Geomech. Eng., 17(3), 309-318. https://doi.org/10.12989/gae.2019.17.3.307.
  24. Wu, Q. (2014), "Progress, problems and prospects of prevention and control technology of mine water and reutilization in China", J. Chin. Coal Soc., 39(5), 795-805. http://doi.org/10.13225/j.cnki.jccs.2014.0478.
  25. Xiang, J.C., Liu, L.P., Cui, X.M., He, Y., Zheng, G.J. and Shi, C.J. (2018), "Effect of limestone on rheological, shrinkage and mechanical properties of alkali - Activated slag/fly ash grouting materials", Constr. Build. Mater., 191, 1285-1292. http://doi.org/10.1016/j.conbuildmat.2018.09.209.
  26. Xu, Y.C., Li, J.H. and Liu, B.Z. (2014), "Reinforcement of working face by grouting in floor in Jiaozuo coal mining area", Coal Geol. Explor., 42(4), 50-54. http://doi.org/10.3969/j.issn.1001-1986.2014.04.011.
  27. Yu, J. (2013), "Study on construction scheme optimization of shallow-buried tunnel undercrossing existing metro station with zero-clearance", Tunn. Construct., 33(01), 22-26.
  28. Zhang, C., Yang, J.S., Xie, Y.P., Gong, F.H., Liang, X., Lei, J.S. and Su, B.Z. (2018a), "Experiment and application for grouting materials for karst under conditions of underground water flow before shield tunneling", Chin. J. Rock Mech. Eng., 37(9), 2120-2130. http://doi.org/10.13722/j.cnki.jrme.2018.0196.
  29. Zhang, D.M., Huang, Z.K., Wang, R.L. Yan, J.Y. and Zhang, J. (2018b), "Grouting-based treatment of tunnel settlement: Practice in Shanghai", Tunn. Undergr. Sp. Technol., 80, 181-196. http://doi.org/10.1016/j.tust.2018.06.017.
  30. Zhang, C., Fu, J.Y. and Yang, J.S. (2018c), "Formulation and performance of grouting materials for underwatershield tunnel construction in karst ground". Constr. Build. Mater., 187, 327-338. http://doi.org/10.1016/j.conbuildmat.2018.07.054
  31. Zhang, C., Yang, J. and Xie, Y. (2018d), "Experiment and application for grouting materials for karst under conditions of underground water flow before shield tunneling", Chin. J. Rock Mech. Eng., 37(9), 2120-2130. http://doi.org/10.13722/j.cnki.jrme.2018.0196.
  32. Zhang, J.X. and Sun, Y.N. (2019), "Experimental and mechanism study of a polymer foaming grouting material for reinforcing broken coal mass", J. Civ. Eng., 23(1), 346-355. http://doi.org/10.1007/s12205-018-0780-5.
  33. Zhao J.H., Zhang X.G., Jiang N., Yin L.M. and Guo W.J. (2020), "Porosity zoning characteristics of fault floor under fluid-solid coupling", Bull. Eng. Geol. Environ. http://doi.org/10.1007/s10064-019-01701-0.

피인용 문헌

  1. Study on the Strata Movement Rule of the Ultrathick and Weak Cementation Overburden in Deep Mining by Similar Material Simulation: A Case Study in China vol.2020, 2020, https://doi.org/10.1155/2020/7356740
  2. Numerical Simulation on Non-Darcy Flow in a Single Rock Fracture Domain Inverted by Digital Images vol.2020, 2020, https://doi.org/10.1155/2020/8814327
  3. Assessment of compressibility behavior of organic soil improved by chemical grouting: An experimental and microstructural study vol.21, pp.4, 2020, https://doi.org/10.12989/gae.2020.21.4.337
  4. Mechanism of seepage-stress fault water inrush and grouting seal vol.13, pp.11, 2020, https://doi.org/10.1007/s12517-020-05319-5
  5. Numerical investigation on overburden migration behaviors in stope under thick magmatic rocks vol.22, pp.4, 2020, https://doi.org/10.12989/gae.2020.22.4.349
  6. Study on Airflow Migration and Rock Dust Pollution Behavior in TBM Construction Tunnel vol.45, pp.10, 2020, https://doi.org/10.1007/s13369-020-04858-z
  7. Dynamic disaster control of backfill mining under thick magmatic rock in one side goaf: A case study vol.27, pp.10, 2020, https://doi.org/10.1007/s11771-020-4532-6
  8. Distribution characteristics of floor pore water pressure based on similarity simulation experiments vol.79, pp.9, 2020, https://doi.org/10.1007/s10064-020-01835-6
  9. Investigation on the Creep Failure Mechanism of Sandy Mudstone Based on Micromesoscopic Mechanics vol.2021, 2021, https://doi.org/10.1155/2021/5550733
  10. Monitoring and Assessment of Cemented Paste Backfill Containing Coal Gangue and Fly Ash in an Underground Mine vol.2021, 2020, https://doi.org/10.1155/2021/5946148
  11. Experimental Study on the Flow Behavior of Grout Used in Horizontal Directional Drilling Borehole Grouting to Seal Mining-Induced Overburden Fractures vol.2021, 2020, https://doi.org/10.1155/2021/8823902
  12. Effects of Foaming and Drainage Behavior on Structure and Properties of Polyurethane/Water Glass (PU/WG) Grouting Materials for Coal Mines vol.2021, 2020, https://doi.org/10.1155/2021/5868654
  13. Effects of the borehole drainage for roof aquifer on local stress in underground mining vol.24, pp.5, 2020, https://doi.org/10.12989/gae.2021.24.5.479
  14. Experimental Study on the Cement-Based Materials Used in Coal Mine Gas Extraction for Hole Sealing vol.6, pp.32, 2020, https://doi.org/10.1021/acsomega.1c02911