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Traditional mechanical breaking technology has the disadvantages of serious equipment wear, large vibration, large dust, and low breaking accuracy. Water jet assisted traditional mechanical breaking technology can improve the breaking efficiency of traditional mechanical breaking technology, reduce equipment wear and pollution. However, due to the problems of fluid-solid coupling and nonlinear failure, the fracture characteristics and damage mechanism of concrete arenot clear, which hinders the development of this technology. In this paper, the experimental system of water jet combined with mechanical breaking concrete is built, and the numerical model of combined breaking is established by smoothed particle hydrodynamics(SPH) method. The cracking characteristics and damage mechanism of water jet combined with mechanical breaking concrete are deeply explored. The results show that compared with the mechanical breaking method, this method reduces the breaking pressure by about 16%, saves the cost and improves the breaking efficiency. The water jet slit has a guiding effect, so that the cracks generated by mechanical breaking concrete are concentrated between the two slits, to avoid secondary damage to the original concrete structure. The mechanism of water jet combined with the mechanical breaking of concrete can be divided into three stages: crater formation stage, crack derivation stage, and stage of cracking.
Czasopismo
Rocznik
Tom
Strony
art. no. e139,2023
Opis fizyczny
Bibliogr. 28 poz., rys., tab., wykr.
Twórcy
autor
- State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
- National and Local Joint Engineering Laboratory of Transportation and Civil Engineering Materials, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
autor
- School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, People’s Republic of China
autor
- Chongqing Jianzhu College, Chongqing 400072, People’s Republic of China
Bibliografia
- 1. Sánchez M, Faria P, Ferrara L, et al. External treatments for the preventive repair of existing constructions: a review. Constr Build Mater. 2018;193:435-52. https://doi.org/10.1016/j.conbuildmat.2018.10.173.
- 2. Cao Peng Wu, Jianfeng ZD, et al. Demolition technology and application of axial hole blasting of foundation pit support beam. Blasting. 2017;34(3):96-9.
- 3. Xinhua Jiang, Meaning Zhang, Jinmin Peng. Research on the control of resonance frequency and amplitude of resonant cement concrete pavement crushing vehicle. Vib Shock. 2011;30(10):249-53. https://doi.org/10.13465/j.cnki.jvs.2011.10.038.
- 4. Qinyong Ma, Yuan Pu, Xiaoyu Lu. Application of static crushing technology in demolition of temporary support of bridge. Constr Technol. 2013;S2:337-40.
- 5. Lopatnikov SL, Gillespie JW, Morand C, Lumpkin R, Dignam J. The new test method for high velocity-water jet impact. Exp Mech. 2012;52(9):1475-81. https://doi.org/10.1007/s11340-012-9608-2.
- 6. Dell’Era A, Pasquali M, Tarquini G, et al. Carbon powder material obtained from an innovative high pressure water jet recycling process of tires used as anode in alkaliion (Li, Na) batteries. Solid State Ionics. 2018;324:20-7. https://doi.org/10.1016/j.ssi.2018.06.008.
- 7. Wen J, Qi Z, Behbahani SS, Pei X, Iseley T. Research on the structures and hydraulic performances of the typical direct jet nozzles for water jet technology. J Braz Soc Mech Sci Eng. 2019;41(12):570. https://doi.org/10.1007/s40430-019-2075-2.
- 8. Hloch Sergej, Srivastava Madhulika, Nag Akash, et al. Effect of pressure of pulsating water jet moving along stair trajectory on erosion depth, surface morphology and microhardness. Wear. 2020;452-453:203278. https://doi.org/10.1016/j.wear.2020.203278.
- 9. Jiang HX, Du CL, Liu SY, et al. Experimental research of influence factors on combined breaking rock with water jet and mechanical tool. China Mech Eng. 2013;24(08):1013-7. https://doi.org/10.3969/j.issn.1004-132X.2013.08.004.
- 10. Liu SY, Chen JF, Liu XH. Rock breaking by conical pick assisted with high pressure water jet. Adv Mech Eng. 2014. https://doi.org/10.1155/2014/868041.
- 11. Zhang JL, Li YC, Zhang YS, et al. Using a high-pressure water jet-assisted tunnel boring machine to break rock. Adv Mech Eng. 2020;12(10):1-16. https://doi.org/10.1177/1687814020962290.
- 12. Chen JL, Jiang ZH, Han WF, et al. Breakage mechanism of hard-rock penetration by TBM disc cutter after high pressure water jet precutting. Eng Fract Mech. 2020;240:107320. https://doi.org/10.1016/j.engfracmech.2020.107320.
- 13. Lu Y, Tang J, Ge Z, et al. Hard rock drilling technique with abrasive water jet assistance. Int J Rock Mech Min Sci. 2013;60:47-56. https://doi.org/10.1016/j.ijrmms.2012.12.021.
- 14. Wang JM, Gao N, Gong WJ. Abrasive waterjet machining simulation by SPH method. Int J Adv Manuf Technol. 2010;50:227-34. https://doi.org/10.1007/s00170-010-2521-x.
- 15. Jiang H, Liu Z, Gao K. Numerical simulation on rock fragmentation by discontinuous water-jet using coupled SPH/FEA method. Powder Technol. 2017;312:248-59. https://doi.org/10.1016/j.powtec.2017.02.047.
- 16. Liu X, Liu S, Ji H. Numerical research on rock breaking performance of water jet based on SPH. Powder Technol. 2015;286:181-92. https://doi.org/10.1016/j.powtec.2015.07.044.
- 17. Ren F, Fang T, Cheng X. Study on rock damage and failure depth under particle water-jet coupling impact. Int J Impact Eng. 2020;139:103504. https://doi.org/10.1016/j.ijimpeng.2020.103504.
- 18. Liu J, Sun H, Zhu Y. Fracturing mechanism and crack expansion rule of concrete impacted by high pressure water jet. Mater Struct. 2021;54:1-15. https://doi.org/10.1617/s11527-021-01774-y.
- 19. Qianwei Zhuang, Yixiang Yuan, Tianming Xu, et al. Simulation and test of jet combined with shield cutting reinforced concrete. Chin J Geotech Eng. 2020;42(10):1817-24. https://doi.org/10.11779/CJGE202010006.
- 20. Liu G-R, Liu MB. Smoothed particle hydrodynamics: a meshfree particle method. World scientific; 2003.
- 21. Wandelt S, Sun X, Menasalvas E, et al. On the use of random graphs as null model of large connected networks. Chaos Solitons Fractals. 2019;119:318-25. https://doi.org/10.1016/j.chaos.2018.12.032.
- 22. Heuze O. General form of the Mie-Gruneisen equation of state. CR Mec. 2012;340(10):679-87. https://doi.org/10.1016/j.crme.2012.10.044.
- 23. Huang F, Lu Y, Li S, et al. Influence of velocity of high-pressure water jet on failure patterns of sandstone. Chin J Rock Mech Eng. 2016;35(11):2259-65. https://doi.org/10.13722/j.cnki.jrme.2016.0044.
- 24. Kong X, Fang Q, Wu H, et al. Numerical predictions of cratering and scabbing in concrete slabs subjected to projectile impact using a modified version of HJC material model. Int J Impact Eng. 2016;95:61-71. https://doi.org/10.1016/j.ijimpeng.2016.04.014.
- 25. Liu K, Wu C, Li X, et al. A modified HJC model for improved dynamic response of brittle materials under blasting loads. Comput Geotech. 2020;123:103584. https://doi.org/10.1016/j.compgeo.2020.103584.
- 26. Wang C, Song R, Wang G, et al. Modifications of the HJC (Holmquist-Johnson-Cook) model for an improved numerical simulation of roller compacted concrete (RCC) structures subjected to impact loadings. Materials. 2020;13(6):1361. https://doi.org/10.3390/ma13061361.
- 27. Holmquist TJ, Johnson GR. A computational constitutive model for glass subjected to large strains, high strain rates and high pressures. J Appl Mech. 2011. https://doi.org/10.1115/1.4004326.
- 28. Lin Y, Chen X-M, Liu G. A modified Johnson-Cook model for tensile behaviors of typical high-strength alloy steel. Mater Sci Eng A. 2010;527(26):6980-7698. https://doi.org/10.1016/j.msea.2010.07.061.
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Bibliografia
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