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ZHANG Lian-zhen, ZHANG Qing-song, LIU Ren-tai, LI Shu-cai. Grouting mechanism in fractured rock considering slurry-rock stress coupling effects[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(11): 2003-2011. DOI: 10.11779/CJGE201811006
Citation: ZHANG Lian-zhen, ZHANG Qing-song, LIU Ren-tai, LI Shu-cai. Grouting mechanism in fractured rock considering slurry-rock stress coupling effects[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(11): 2003-2011. DOI: 10.11779/CJGE201811006

Grouting mechanism in fractured rock considering slurry-rock stress coupling effects

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  • Received Date: July 14, 2017
  • Published Date: November 24, 2018
  • The slurry-rock stress coupling effects have a great influence on the grouting process in fractured rock. In order to describe the dynamic grouting process, a piecewise equation is used to govern the deformation process of rock fissure, and a theoretical model for fissure grouting considering slurry-rock stress coupling effects is established with the slurry being assumed as Bingham liquid. A step-wise calculation method is established, in which the tracing of grouted zone front and distribution of grouting flow rate are realized by using the mass conservation condition. The try out method is adopted to compute the pressure and velocity fields in the grouted zone. The distribution of the pressure field and fracture aperture in the grouted zone and the effect degree of slurry-rock stress coupling on the grouting process with different fracture apertures are analyzed. The results show that in the micro-fracture grouting process, the slurry-rock stress coupling has greater effect on the grouting process when the fracture aperture becomes smaller. At the same time, the grouting pressure, replacing the fracture aperture, becomes the main controlling factor for the grouting radius. By comparing the theoretical results with the measured ones in a grouting project, the validity of the theoretical model and calculation method is verified.
  • [1]
    GOTHÄLL R, STILLE H. Fracture dilation during grouting[J]. Tunnelling and Underground Space Technology, 2009, 24(3): 126-135.
    [2]
    阮文军. 基于浆液黏度时变性的岩体裂隙注浆扩散模型[J]. 岩石力学与工程学报, 2005, 24(15): 2709-2714.
    (RUAN Wen-jun.Spreading model of grouting in rock mass fissures based on time-dependent behavior of viscosity of cement-based grouts[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(15): 2709-2714. (in Chinese))
    [3]
    李术才, 刘人太, 张庆松, 等. 基于黏度时变性的水泥-玻璃浆液扩散机制研究[J]. 岩石力学与工程学报, 2013, 32(12): 2415-2421.
    (LI Shu-cai, LIU Ren-tai, ZHANG Qing-song, et al.Research on C-S slurry diffusion mechanism with time-dependent behavior of viscosity[J]. Chinese Journal of Rock Mechanics and Engineering, 2013, 32(12): 2415-2421. (in Chinese))
    [4]
    GUSTAFSON G, CLAESSON J, FRANSSON Å.Steering parameters for rock grouting[J]. Journal of Applied Mathematics, 2013, 22(5): 1-9.
    [5]
    RAFI J Y, STILLE H.Basic mechanism of elastic jacking and impact of fracture aperture change on grout spread, transmissivity and penetrability[J]. Tunnelling and Underground Space Technology, 2015, 49: 174-187.
    [6]
    郑卓, 李术才, 刘人太, 等. 裂隙岩体注浆中的浆液-岩体耦合效应分析[J]. 岩石力学与工程学报, 2015, 34(增刊2): 4054-4062.
    (ZHENG Zhuo, LI Shu-cai, LIU Ren-tai, et al.Analysis of coupling effect between grout and rock mass during jointed rock grouting[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(S2): 4054-4062. (in Chinese))
    [7]
    王媛, 速宝玉. 单裂隙面渗流特性及等效水力隙宽[J].水科学进展, 2002, 13(1): 61-68.
    (WANG Yuan, SU Bao-yu.Research on the behavior of fluid flow in a single fracture and its equivalent hydraulic aperture[J]. Advances in Water Science, 2002, 13(1): 61-68. (in Chinese))
    [8]
    GOODMAN R E, TAYLOR R L, BREKKE T L.A model for the mechanics of jointed rock[J]. J Soil Mech and Found, Engrg Div, ASCE, 1968, 99(5): 637-660.
    [9]
    沈崇棠, 刘鹤年. 非牛顿流体力学及其应用[M]. 北京: 高等教育出版社, 1989: 23-29.
    (SHEN Chong-shang, LIU He-nian.Non-Newtonian fluid mechanics and its applications[M]. Beijing: Higher Education Press, 1989: 23-29. (in Chinese))
    [10]
    阮文军. 注浆扩散与浆液若干基本性能研究[J]. 岩土工程学报, 2005, 27(1): 69-73.
    (RUAN Wen-jun.Research on diffusion of grouting and basic properties of grouts[J]. Chinese Journal of Geotechnical Engineering, 2005, 27(1): 69-73. (in Chinese))
    [11]
    杨秀竹, 王星华, 雷金山. 宾汉体浆液扩散半径的研究及应用[J]. 水利学报, 2004(6): 75-79.
    (YANG Xiu-zhu, WANG Xing-hua, LEI Jin-shan.Study on grouting diffusion radius of Bingham fluids[J]. Journal of Hydraulic Engineering, 2004(6): 75-79. (in Chinese))
    [12]
    JOHN D Anderson.Computational fluid dynamics[M]. New York: McGraw-Hill Education, 1995.
    [13]
    KIM J S, LEE I M, JANG J H, et al.Groutability of cement-based grout with consideration of viscosity and filtration phenomenon[J]. Int J Numer Anal Meth Geomech, 2009, 33: 1771-1797.
    [14]
    邹德宁, 雷永平, 梁工英, 等. 用数值计算技术和试错法确定金属材料表面对激光的吸收率[J]. 金属学报, 2001, 37(7): 737-740.
    (ZOU De-ning, LEI Yong-ping, LIANG Gong-ying, et al.Determination of laser absorptivity of metal by numerical calculation technique and trial-and-error method[J]. Acta Metallurgica Sinica, 2001, 37(7): 737-740. (in Chinese))
    [15]
    DL/T5331—2005 水电水利工程钻孔压水试验规程[S]. 2005.
    (DL/T5331—2005 Code of water pressure test in borehole for hydropower and water resources engineering[S]. 2005. (in Chinese))

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